OSS Alts.

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80 popular SaaS tools, 206 open-source replacements tracked, 6,199,696 GitHub stars across the ecosystem.

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59 categories

Authentication

1

Auth0

Browse →

Automation

1

Zapier

Browse →

Backend-as-a-Service

2

Firebase · Supabase

Browse →

Blog Platform

3

Ghost · Medium · WordPress.com

Browse →

CI/CD

2

Buildkite · GitHub Actions

Browse →

Code Playground

2

CodePen · Glitch

Browse →

Communications API

1

Twilio

Browse →

Container Registry

1

Docker Hub

Browse →

CRM

2

HubSpot · Zoho CRM

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Customer Data Platform

1

Segment

Browse →

Customer Support

2

Intercom · Zendesk

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Database

3

Neon · PlanetScale · Upstash

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Database & Spreadsheet

1

Airtable

Browse →

Design

1

Figma

Browse →

Digital Goods

1

Gumroad

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E-commerce

1

Shopify

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E-Signature

1

DocuSign

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Email Client

1

Superhuman

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Email Marketing

1

Mailchimp

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Error Tracking

1

Sentry

Browse →

File Storage

1

Dropbox

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Forms & Surveys

1

Typeform

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Headless CMS

1

Contentful

Browse →

Highlights & Notes

1

Readwise

Browse →

Hosting & Deployment

1

Vercel

Browse →

Incident Response

1

PagerDuty

Browse →

Internal Tools

1

Retool

Browse →

Issue Tracking

2

Jira · Linear

Browse →

Knowledge Base

2

Obsidian · Roam Research

Browse →

LaTeX Editor

1

Overleaf

Browse →

Link-in-Bio

1

Linktree

Browse →

Monitoring

1

Datadog

Browse →

Newsletter

1

Substack

Browse →

No-Code

1

Bubble

Browse →

Notes & Docs

4

Bear · Coda · Evernote · Notion

Browse →

Object Storage

1

Cloudflare R2

Browse →

PaaS

1

Heroku

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Password Manager

1

1Password

Browse →

Payments

1

Stripe

Browse →

Presentation

1

Pitch

Browse →

Product Analytics

2

Heap · Mixpanel

Browse →

Project Management

4

Asana · ClickUp · Monday.com · Trello

Browse →

Read It Later

1

Pocket

Browse →

Realtime Messaging

1

Pusher

Browse →

Scheduling

1

Calendly

Browse →

Screen Recording

1

Loom

Browse →

Search

1

Algolia

Browse →

Social Media Management

1

Hootsuite

Browse →

Source Code Hosting

1

Bitbucket

Browse →

Team Chat

1

Slack

Browse →

Transactional Email

2

Mailgun · SendGrid

Browse →

URL Shortener

1

Bitly

Browse →

User Behavior Analytics

1

Hotjar

Browse →

Video Conferencing

1

Zoom

Browse →

Web Analytics

2

Fathom · Google Analytics

Browse →

Website Builder

1

Webflow

Browse →

Whiteboarding

2

Figma FigJam · Miro

Browse →

Wiki

1

Confluence

Browse →

Writing Assistant

1

Grammarly

Browse →

All SaaS tracked

80 SaaS tools with OSS alternatives

1Password alternatives

Password Manager

1Password is a commercial password manager used by individuals and teams for storing credentials, secure notes, and SSH keys in encrypted vaults. It offers browser extensions, mobile apps, and a Secrets Automation API for developer workflows. Teams use it to share credentials across departments with fine-grained access controls.

3 OSS alts · ★ 105,269

Airtable alternatives

Database & Spreadsheet

Airtable is a no-code database platform that combines spreadsheet-style interface with relational table structures, allowing teams to build linked databases, forms, and automations without SQL. It is widely used for content calendars, project tracking, CRM, and lightweight operations databases. Airtable's views (Grid, Gallery, Kanban, Calendar, Gantt) make the same data accessible to different roles.

5 OSS alts · ★ 128,670

Algolia is a hosted search-as-a-service platform delivering typo-tolerant, faceted, and ranked search results via a REST API. It handles indexing, relevance tuning, and infrastructure, letting teams add product search, site search, or content discovery to applications without managing a search cluster. Its speed focus (sub-100ms responses) and merchandising rules are its primary differentiators.

3 OSS alts · ★ 94,971

Asana alternatives

Project Management

Asana is a project management SaaS for tracking tasks, milestones, and team workloads across projects, with timeline views, workload balancing, and reporting dashboards. Teams use it for sprint planning, cross-functional project coordination, and goal tracking. Its rule-based automations can move tasks, assign owners, and send notifications based on field changes.

3 OSS alts · ★ 68,528

Auth0 alternatives

Authentication

Auth0 (now Okta Customer Identity Cloud) is a managed identity platform providing authentication, authorization, and user management via hosted login flows, social connections, and multi-factor authentication. It is used by apps that want to delegate auth complexity — implementing OIDC, SAML, and social login without building it — with a management dashboard and API for user data.

6 OSS alts · ★ 125,601

Bear alternatives

Notes & Docs

Bear is a note-taking app for macOS and iOS, organized around tags rather than folders, with Markdown-compatible writing and a focus on clean typography. It syncs across Apple devices via iCloud and supports nested tags, backlinks between notes, and export to multiple formats. It targets writers and developers who want a fast, minimal writing tool on Apple platforms.

2 OSS alts · ★ 68,664

Bitbucket alternatives

Source Code Hosting

Bitbucket is Atlassian's Git hosting platform, tightly integrated with Jira for issue tracking and Confluence for documentation. It offers pull requests, branch permissions, pipelines (CI/CD), and Atlassian-native access controls. Teams using the Atlassian stack — Jira, Confluence, Statuspage — often choose Bitbucket for the integrated project linking.

2 OSS alts · ★ 79,710

Bitly alternatives

URL Shortener

Bitly is a URL shortening and link management platform used for creating branded short links, tracking click analytics, and managing QR codes. Marketing teams use it to measure link performance across campaigns and channels. Its branded domain feature lets companies use their own domain (e.g., brand.ly) instead of bit.ly.

2 OSS alts · ★ 22,565

Bubble is a no-code web application builder that lets users design interfaces visually and define application logic through a point-and-click workflow editor, without writing code. It hosts applications on Bubble's infrastructure and handles database storage, user authentication, and API connections natively. It targets non-technical founders and product teams building internal tools or SaaS products without engineering resources.

3 OSS alts · ★ 105,504

Buildkite is a CI/CD platform that runs pipeline steps on your own infrastructure (agents you host) while managing the orchestration, dashboard, and queue centrally via Buildkite's SaaS control plane. It is used by engineering teams who need CI at scale on custom or on-prem hardware without managing a full self-hosted CI system. Pipelines are defined in YAML with support for dynamic step generation.

2 OSS alts · ★ 42,433

Calendly is a scheduling automation tool that lets people book meetings based on your real-time calendar availability, removing email back-and-forth. It integrates with Google Calendar, Outlook, and Zoom to enforce buffer times, meeting type limits, and round-robin distribution across team members. Used primarily by sales, recruiting, and customer success teams.

1 OSS alts · ★ 42,363

ClickUp alternatives

Project Management

ClickUp is a project management platform that consolidates tasks, docs, goals, and time tracking in one interface. It targets teams who want to replace multiple tools — combining aspects of Asana (tasks), Notion (docs), and toggl (time tracking). Its high configurability (custom fields, views, automations, dashboards) is both its differentiator and its source of complexity.

3 OSS alts · ★ 58,554

Cloudflare R2 is S3-compatible object storage with no egress fees, positioned as an alternative to AWS S3 for applications where data transfer out costs are significant. It integrates with Cloudflare's CDN, Workers, and Cache for edge delivery. Developers use it for storing static assets, user uploads, and ML model artifacts where the no-egress pricing model reduces cloud bills.

2 OSS alts · ★ 92,960

Coda alternatives

Notes & Docs

Coda is a document platform where documents can contain tables, views, buttons, and automations, blurring the line between a spreadsheet, a wiki, and a lightweight database. Teams use Coda Docs to build internal tools like trackers, portals, and approval workflows without separate app-building tools. It integrates with external data sources to pull in live data.

3 OSS alts · ★ 173,653

CodePen alternatives

Code Playground

CodePen is an online IDE and social platform for front-end development, where users create and share HTML, CSS, and JavaScript snippets (Pens). It is used by developers for prototyping UI components, learning CSS techniques, and sharing demo code. CodePen PRO adds private Pens, Collab Mode for pair-programming, and offline mode.

1 OSS alts · ★ 7,147

Confluence is Atlassian's team wiki and knowledge base tool, used for project documentation, meeting notes, runbooks, and internal knowledge management. It integrates natively with Jira for linking documentation to epics and tickets. Confluence supports structured pages, macros for embedded content, and space-level permissions for access control.

5 OSS alts · ★ 132,323

Contentful is a headless CMS delivering structured content via API (REST and GraphQL) to websites, apps, and other frontends. Content editors work in a web interface to manage content types and entries, while developers consume the API. It is commonly used by marketing-heavy websites and product teams who need content managed separately from the front-end codebase.

5 OSS alts · ★ 168,752

Datadog is a cloud observability platform providing infrastructure metrics, APM traces, log management, and synthetic monitoring in a unified interface. It is used by engineering teams to monitor application performance, set up alerts, and investigate incidents across distributed systems. Datadog's strength is correlating metrics, traces, and logs in a single view for faster incident diagnosis.

5 OSS alts · ★ 207,296

Docker Hub alternatives

Container Registry

Docker Hub is the default container image registry for the Docker ecosystem, hosting both official images (nginx, postgres, python) and community images. It is used by developers to pull base images, and by teams to push private images for deployment pipelines. Docker Hub rate limits on free-tier pulls have made private registry hosting more attractive in CI/CD contexts.

2 OSS alts · ★ 38,836

DocuSign alternatives

E-Signature

DocuSign is an electronic signature platform used for sending, signing, and managing legally binding documents — contracts, NDAs, offer letters, and compliance forms. It provides an audit trail, signer authentication options, and integrations with Salesforce, Workday, and enterprise systems. Healthcare and financial services use it for regulatory compliance with e-signature laws.

2 OSS alts · ★ 19,074

Dropbox alternatives

File Storage

Dropbox is a file sync and storage service used by individuals and teams for sharing files across devices and collaborating on documents. Beyond file storage, Dropbox Paper (collaborative docs) and Dropbox Replay (video review) extend it into productivity workflows. Teams use it primarily for its deep desktop OS integration and reliable sync across Windows, macOS, iOS, and Android.

4 OSS alts · ★ 141,838

Evernote alternatives

Notes & Docs

Evernote is a note-taking and personal knowledge management app with cross-platform sync, rich text editing, web clipper, and OCR for handwritten notes. It was historically dominant in the note-taking space before a series of pricing changes and product missteps eroded its user base. Teams use it for project notes, reference libraries, and meeting documentation.

2 OSS alts · ★ 93,052

Fathom alternatives

Web Analytics

Fathom Analytics is a privacy-focused web analytics SaaS that collects visitor data without cookies or personal data, making it GDPR compliant by design. It provides page views, referrers, devices, and conversion goals in a simple dashboard without the data volume or complexity of Google Analytics. Used primarily by privacy-conscious indie developers, bloggers, and small businesses.

2 OSS alts · ★ 61,260

Figma is a browser-based design tool for UI/UX design, prototyping, and design system management. Its defining feature is real-time collaborative editing — multiple designers editing the same file simultaneously with live cursors. Teams use it for product design workflows, from wireframing to high-fidelity mockups to interactive prototypes that developers can inspect for CSS and measurements.

2 OSS alts · ★ 169,855

Figma FigJam is Figma's collaborative whiteboarding tool for teams to run workshops, brainstorming sessions, and planning exercises with sticky notes, shapes, and embedded widgets. It integrates with Figma design files, allowing teams to go from ideation in FigJam to production design in Figma without context switching. It targets product teams and facilitators running async or live collaborative sessions.

2 OSS alts · ★ 169,395

Firebase alternatives

Backend-as-a-Service

Firebase is Google's Backend-as-a-Service platform providing Firestore (NoSQL database), Authentication, Storage, Cloud Functions, Hosting, and Realtime Database for web and mobile apps. Developers use it to build and deploy full-stack applications without managing server infrastructure. Its tight Google ecosystem integration (Google Sign-In, Analytics, Crashlytics) is a primary driver for adoption.

4 OSS alts · ★ 225,202

Ghost alternatives

Blog Platform

Ghost is a Node.js-based publishing platform for blogs, membership sites, and newsletters, used by independent writers and media brands. It combines content management, subscription management, and email newsletters in one tool. Ghost Pro (the managed SaaS) handles hosting and updates, while the OSS Ghost code is self-hostable under MIT license.

3 OSS alts · ★ 73,363

GitHub Actions is GitHub's CI/CD and automation platform where workflows are defined in YAML files triggered by repository events (push, pull request, schedule, etc.). It runs steps on GitHub-hosted runners (Ubuntu, Windows, macOS) or self-hosted runners, with a marketplace of 20,000+ reusable actions. Used for everything from test automation to deployment pipelines to repository maintenance bots.

2 OSS alts · ★ 42,433

Glitch alternatives

Code Playground

Glitch is a browser-based development environment for building and deploying small web projects, where each project gets a live URL immediately without any deployment setup. It targets beginners and educators who want to share working code examples, and developers who want to prototype without local tooling. Projects can be forked (remixed) by anyone to build on.

2 OSS alts · ★ 78,567

Google Analytics 4 (GA4) is Google's web and app analytics platform providing event-based tracking of user behavior, acquisition channels, conversions, and retention. It replaced Universal Analytics in 2023. GA4's event model is more flexible than UA but requires more configuration to replicate common reporting use cases. The free tier has data sampling limitations for high-traffic properties.

4 OSS alts · ★ 83,704

Grammarly alternatives

Writing Assistant

Grammarly is an AI writing assistant used for grammar and style checking, tone analysis, and generative text suggestions across browsers, desktop, and Microsoft Office. It integrates inline across web applications and works as a native keyboard on mobile. The Premium tier adds style guide enforcement and plagiarism detection for academic and professional use.

2 OSS alts · ★ 19,807

Gumroad alternatives

Digital Goods

Gumroad is a digital products marketplace and payment platform for creators selling ebooks, software, courses, and digital downloads directly to buyers. It handles payments, file delivery, and license key generation. Creators keep 90% after payment fees with no monthly subscription, making it attractive for infrequent or low-volume sales.

0 OSS alts · ★ 0

Heap alternatives

Product Analytics

Heap is a product analytics platform that auto-captures all user interactions (clicks, inputs, page views) retroactively without requiring pre-planned event instrumentation. This retroactive analysis capability allows teams to analyze user behavior on events they didn't think to track at implementation time. Used by product teams doing conversion optimization and funnel analysis.

2 OSS alts · ★ 55,782

Heroku is a Platform-as-a-Service for deploying, managing, and scaling web applications without managing servers or infrastructure. Developers push code via git and Heroku handles runtime, scaling, and managed add-ons (Postgres, Redis, Kafka). It targets developers who want to deploy applications quickly without DevOps expertise, and has historically been a first deployment platform for startups.

4 OSS alts · ★ 102,010

Hootsuite alternatives

Social Media Management

Hootsuite is a social media management platform for scheduling posts, monitoring brand mentions, and managing multiple social accounts from one dashboard. Marketing teams use it to plan content calendars, collaborate on approvals, and view analytics across Facebook, Instagram, Twitter/X, LinkedIn, and TikTok. Enterprise plans include team workflows and automated posting.

1 OSS alts · ★ 30,007

Hotjar alternatives

User Behavior Analytics

Hotjar is a user behavior analytics tool providing session recordings, heatmaps, and user surveys to help product teams understand how visitors interact with their sites. It is used by UX designers and product managers to identify friction points in user journeys, supplement quantitative analytics with qualitative recordings, and collect in-page feedback.

3 OSS alts · ★ 65,835

HubSpot is a CRM and marketing automation platform with tools for contact management, email marketing, lead scoring, sales pipelines, and customer support. The free tier is generous; paid tiers unlock automation, reporting, and team features. Teams use HubSpot as an all-in-one CRM hub that reduces the need for multiple sales and marketing point solutions.

3 OSS alts · ★ 57,991

Intercom alternatives

Customer Support

Intercom is a customer messaging platform combining live chat, in-app messaging, help center, and AI-powered chatbot (Fin) for customer support and onboarding. Used by SaaS companies for both proactive user communication (product tours, announcements) and reactive support (ticket management, agent inbox). Its targeting rules allow messages triggered by user behavior within the product.

4 OSS alts · ★ 44,627

Jira alternatives

Issue Tracking

Jira is Atlassian's issue tracking and project management platform, widely adopted in software engineering teams for sprint planning, bug tracking, and roadmap management. It integrates with the broader Atlassian ecosystem (Confluence, Bitbucket) and hundreds of third-party tools. Jira's custom workflow engine and JQL query language give it significant configuration depth for enterprise teams.

3 OSS alts · ★ 110,114

Linear alternatives

Issue Tracking

Linear is an issue tracking tool positioned as a faster, more opinionated alternative to Jira, with a keyboard-first design and minimal configuration overhead. It focuses on engineering teams who want cycle-based sprint planning with less ceremony than Jira. Linear's speed (sub-100ms interactions) and clean UX drove adoption among product-led startups and engineering teams who found Jira too heavyweight.

1 OSS alts · ★ 48,790

Linktree alternatives

Link-in-Bio

Linktree is a link-in-bio page builder that creates a simple landing page hosting multiple links for social media profiles limited to a single URL (Instagram, TikTok, Twitter bio). Creators, brands, and businesses use it to aggregate links to their content, products, and channels from a single shareable URL. It includes basic analytics on link clicks.

1 OSS alts · ★ 10,562

Loom alternatives

Screen Recording

Loom is a screen recording and video messaging tool used for async communication — recording demos, walkthroughs, and feedback that would otherwise be synchronous meetings. It records screen, webcam, and audio simultaneously and provides a shareable link with viewer analytics. Teams use it for onboarding videos, engineering handoffs, and design feedback.

1 OSS alts · ★ 18,490

Mailchimp alternatives

Email Marketing

Mailchimp is an email marketing platform providing list management, email campaign design, automation sequences, and audience analytics. It is widely used by small businesses, nonprofits, and e-commerce stores for newsletters and marketing automation. Its drag-and-drop email builder and Mailchimp-hosted landing pages reduce the technical barrier to email marketing.

2 OSS alts · ★ 29,499

Mailgun alternatives

Transactional Email

Mailgun is a transactional email API for developers, providing reliable SMTP and REST API delivery for application-generated emails (password resets, order confirmations, notifications). It handles bounce processing, unsubscribe management, and delivery analytics. The free tier includes limited monthly sends; paid tiers scale with volume.

1 OSS alts · ★ 16,490

Medium alternatives

Blog Platform

Medium is a publishing and reading platform where writers publish articles for Medium's reader audience, with monetization via the Medium Partner Program (paid based on member reading time). It combines a built-in distribution network with a clean writing editor and supports both independent writers and publications. Readers pay a $5/month membership for full access.

2 OSS alts · ★ 57,887

Miro alternatives

Whiteboarding

Miro is a collaborative online whiteboard platform used for product workshops, design thinking, sprint planning, and team retrospectives. It provides templates for common facilitation frameworks (user story mapping, journey mapping, affinity diagramming) and real-time co-editing with video calling embedded. Enterprises use it for large-scale async visual collaboration across distributed teams.

2 OSS alts · ★ 169,395

Mixpanel alternatives

Product Analytics

Mixpanel is a product analytics platform for tracking user events, building funnel analyses, and measuring feature adoption in web and mobile apps. Product teams use it to understand how users behave within a product, which steps cause drop-off, and which features drive retention. Its query interface allows flexible segmentation by user properties and event parameters.

3 OSS alts · ★ 44,570

Monday.com alternatives

Project Management

Monday.com is a work management platform with a spreadsheet-like interface organizing work as items in color-coded boards with customizable columns. Teams use it for project tracking, CRM pipelines, HR workflows, and operations management. Its no-code automation and 200+ integrations make it a general-purpose work tool rather than a developer-specific project tracker.

2 OSS alts · ★ 58,554

Neon is a serverless Postgres platform that separates storage and compute, enabling database branching (creating isolated copies for development and testing), autoscaling to zero when idle, and instant scale-up under load. It targets developers who want Git-like branching workflows for database schema development. The Neon project is itself open source under Apache 2.0.

2 OSS alts · ★ 42,552

Notion alternatives

Notes & Docs

Notion is an all-in-one workspace combining block-based document editing with databases, allowing users to build wikis, project trackers, CRMs, and habit trackers in a single tool. Teams use it as a flexible second brain — the same database can display as a table, board, calendar, or gallery. Its AI features (generating, summarizing, and querying content) are integrated across the editor.

7 OSS alts · ★ 245,565

Obsidian alternatives

Knowledge Base

Obsidian is a local-first Markdown note-taking app with a plugin ecosystem of 1,000+ community plugins, backlinks, graph view, and optional sync. It stores notes as plain Markdown files on your local filesystem — you own the data format entirely. A growing portion of its user base uses it as a personal knowledge management system with Zettelkasten or linking-based workflows.

2 OSS alts · ★ 78,561

Overleaf alternatives

LaTeX Editor

Overleaf is a collaborative cloud LaTeX editor used by academics, researchers, and engineers for writing papers, theses, and technical documents. It provides real-time co-editing, a template library for journal and conference formats, and integration with reference managers (Zotero, Mendeley). The managed version handles LaTeX compilation infrastructure without local installation.

1 OSS alts · ★ 17,645

PagerDuty alternatives

Incident Response

PagerDuty is an incident response platform used by operations and engineering teams to route alerts, manage on-call schedules, and coordinate response during outages. It integrates with monitoring tools (Datadog, Grafana, CloudWatch) and communication channels (Slack, phone, SMS) to ensure alerts reach the right person at the right time with escalation policies.

2 OSS alts · ★ 76,580

Pitch alternatives

Presentation

Pitch is a collaborative presentation tool targeting teams who want a more design-aware alternative to Google Slides or PowerPoint, with real-time co-editing, brand kit enforcement, and a template library oriented around clean visual design. Teams use it for investor decks, product presentations, and internal reporting where brand consistency matters.

1 OSS alts · ★ 11,621

PlanetScale is a MySQL-compatible database SaaS built on Vitess, offering Git-like schema branching (deploy requests), horizontal sharding, and managed schema migrations without locking. Developed by the team that built Vitess at YouTube. PlanetScale ended its free tier in 2024, which prompted many small teams to evaluate alternatives.

2 OSS alts · ★ 42,674

Pocket alternatives

Read It Later

Pocket (now Mozilla Pocket) is a read-it-later service for saving articles, web pages, and videos from any device to read later, offline-capable. It provides a browser extension and mobile apps for saving, tagging, and reading saved content with a clean reader view. Mozilla acquired it in 2017 and it is integrated as a save feature in Firefox.

2 OSS alts · ★ 28,719

Pusher alternatives

Realtime Messaging

Pusher is a hosted WebSocket API for adding real-time features to web and mobile apps — live notifications, chat, collaborative cursors, live dashboards — without managing WebSocket server infrastructure. Developers connect via Pusher's client SDK and send events via the server API. Pricing scales with concurrent connections and monthly messages.

3 OSS alts · ★ 17,383

Readwise alternatives

Highlights & Notes

Readwise is a tool for reviewing and retaining highlights from books, articles, Kindle, and web sources, using spaced repetition to resurface saved highlights periodically. Its Reader product (Readwise Reader) combines read-it-later with annotation. Teams and individuals use it to build a personal reading inbox and connect highlights to their note-taking system.

2 OSS alts · ★ 28,719

Retool alternatives

Internal Tools

Retool is a low-code internal tool builder that lets engineering and operations teams build admin dashboards, CRUD interfaces, and data viewers by connecting SQL queries and API calls to pre-built UI components. It reduces the engineering time for internal tooling by handling the UI plumbing — tables, forms, buttons — while developers write the data queries.

4 OSS alts · ★ 108,469

Roam Research is a note-taking tool built around bidirectional linking and daily pages, popularizing block-based hierarchical note structure and the 'second brain' networked thought approach. It uses a proprietary graph database backend and targets power users building dense knowledge graphs through linked blocks. Roam's influence on subsequent note-taking tools (Logseq, Obsidian) is significant.

2 OSS alts · ★ 78,561

Segment alternatives

Customer Data Platform

Segment is a customer data platform that collects, unifies, and routes behavioral event data from web and mobile sources to over 400 downstream destinations via a single tracking SDK.

2 OSS alts · ★ 38,715

SendGrid alternatives

Transactional Email

SendGrid is a cloud email delivery service providing SMTP relay, a REST API, and delivery analytics with managed IP reputation for transactional and marketing email at scale.

1 OSS alts · ★ 16,490

Sentry alternatives

Error Tracking

Sentry is an application monitoring platform that captures exceptions, stack traces, and performance traces across 30+ language SDKs, grouping errors by fingerprint for triage workflows and alerting.

2 OSS alts · ★ 53,031

Shopify is a fully managed e-commerce platform covering storefront, checkout, inventory, payment processing, and fulfillment tooling for merchants selling physical and digital goods.

4 OSS alts · ★ 74,126

Slack alternatives

Team Chat

Slack is a cloud team messaging platform organizing conversations into channels with integrations across hundreds of developer tools, file sharing, and searchable persistent message history.

6 OSS alts · ★ 167,533

Stripe is a payments infrastructure platform providing card processing, subscription billing, invoicing, and fraud detection via a unified REST API across 135+ currencies.

2 OSS alts · ★ 55,756

Substack is a newsletter publishing platform combining email delivery, paid subscription management, and a public web presence for writers, taking a 10% cut of subscription revenue.

1 OSS alts · ★ 52,741

Supabase alternatives

Backend-as-a-Service

Supabase is a backend-as-a-service platform wrapping PostgreSQL with auto-generated REST and GraphQL APIs, real-time subscriptions, authentication, edge functions, and file storage.

3 OSS alts · ★ 216,056

Superhuman is a premium email client for Gmail and Outlook focused on keyboard-shortcut-driven workflows, AI-assisted inbox triage, and read receipts for high-volume inbox management.

0 OSS alts · ★ 0

Trello alternatives

Project Management

Trello is a kanban-style project management tool organizing tasks as cards on boards, with drag-and-drop movement between columns representing workflow stages and a large library of power-ups.

4 OSS alts · ★ 54,124

Twilio alternatives

Communications API

Twilio is a cloud communications platform providing programmable SMS, voice calls, WhatsApp messaging, and video via REST APIs, abstracting carrier licensing, number provisioning, and global delivery.

1 OSS alts · ★ 29

Typeform alternatives

Forms & Surveys

Typeform is a conversational form and survey builder presenting one question at a time to improve completion rates, backed by conditional logic branching and a polished embedding experience.

2 OSS alts · ★ 15,061

Upstash is a serverless database platform offering Redis-compatible caching, rate limiting, and pub/sub billed per request rather than by reserved instance size, targeting low-traffic and bursty workloads.

2 OSS alts · ★ 99,828

Vercel alternatives

Hosting & Deployment

Vercel is a frontend deployment platform providing edge network delivery, automatic preview URLs per pull request, and serverless function execution with tight Next.js framework integration.

2 OSS alts · ★ 86,474

Webflow alternatives

Website Builder

Webflow is a no-code visual website builder combining a CSS-based design canvas with a built-in CMS, hosting, and e-commerce for designers who want pixel-level control without writing code.

2 OSS alts · ★ 77,260

WordPress.com is the managed hosting service for the WordPress blogging platform, providing themes, automatic updates, and security management without server administration across free and paid tiers.

2 OSS alts · ★ 73,828

Zapier alternatives

Automation

Zapier is a no-code automation platform connecting over 6,000 web apps through trigger-action workflows called Zaps, requiring no programming knowledge to automate cross-application tasks at per-task pricing.

4 OSS alts · ★ 303,405

Zendesk alternatives

Customer Support

Zendesk is an enterprise customer support platform covering multi-channel ticket management, live chat, voice, knowledge base, and agent analytics across email, social, and messaging channels.

4 OSS alts · ★ 57,310

Zoho CRM is a cloud customer relationship management platform covering sales pipelines, contact management, email sequences, and workflow automation for small-to-enterprise sales teams.

5 OSS alts · ★ 62,152

Zoom alternatives

Video Conferencing

Zoom is a cloud video conferencing platform supporting meetings, webinars, and persistent team spaces with screen sharing, recording, breakout rooms, and scaling to thousands of participants.

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