Search once across OSI-approved open source, source-available projects, and proprietary products.
Apache 2.0 search and analytics suite with AI-ready retrieval
OpenSearch is an Apache 2.0 search and analytics suite for ingesting, searching, visualizing, and analyzing data at scale, with vector search for AI applications.
Open-source Git-backed headless CMS with visual editing for Markdown sites.
TinaCMS is an open-source, Git-backed headless CMS that adds visual editing to Markdown, MDX, and JSON content, saving editor changes as Git commits.
Language detection library behind GitHub language stats and code highlighting
Linguist is the open source Ruby library GitHub uses to detect blob languages, ignore vendored and generated files, and generate the language breakdown bar on every repository.
End-to-end encrypted team messenger built on Matrix
Element is an end-to-end encrypted messenger for teams and communities, built on the open Matrix protocol with chat, voice and video calls.
Flexible React framework for building documentation sites
Fumadocs is a React documentation framework that turns MDX content into fast docs sites with built-in search, theming, and OpenAPI support.
Document signing you can host and audit yourself
Documenso handles electronic signature collection with the signing certificate, audit trail, and field placement you expect, while keeping the documents on infrastructure you control.
Free open source two-factor authenticator for Android
Aegis Authenticator is a free Android app that keeps TOTP and HOTP two-factor tokens in an encrypted vault stored on the device.
Open source RAW workflow with a non-destructive darkroom
Darktable is a desktop photography workflow application that organizes digital negatives and develops RAW files without altering originals.
Open-source AI gateway routing 200+ providers with fallbacks
Portkey AI Gateway is an open-source gateway that routes app traffic across 200+ LLM providers with fallbacks, load balancing, caching, and guardrails.
Cookieless open-source web and product analytics with session replay and funnels
Rybbit is a self-hosted web and product analytics platform with a readable dashboard and an 11 KB cookieless tracking script.
Self-hosted read-it-later app that archives articles for offline reading
Wallabag is a self-hosted read-it-later app that extracts article text and stores it in a personal archive with tags and search.
Self-hosted session replay and product analytics for debugging UX issues
OpenReplay is a self-hosted session replay and product analytics platform that records user sessions with DevTools data to reproduce issues.
Reactive backend with database, functions, and realtime sync
Convex is a backend platform where the database, serverless functions, scheduling, and file storage arrive as one TypeScript-native system.
Self-hosted Kanban boards for teams with real-time sync
Planka is a self-hosted Kanban board for teams with real-time sync, rich cards, and broad notifications, free as a Community edition alongside paid Pro plans.
Source-available platform for product integrations across 1,600+ APIs
Nango is a source-available integration platform that gives a SaaS product or AI agent production-ready connections to external APIs through one integration: managed OAuth, over 1,600 prebuilt integrations, and unified APIs across 12 categories.
Open-source AI email assistant that triages Gmail and Outlook
Inbox Zero is an open-source AI email assistant for Gmail and Outlook that triages mail, drafts replies, and automates follow-ups, available as paid hosted plans or self-hosted.
Open-source backend framework that provisions its own cloud infrastructure
Encore is an open-source framework for type-safe backends in Go and TypeScript, provisioning infrastructure from application code.
Open-source AIOps for alert correlation, deduplication, and automated remediation
Keep is an open-source AIOps platform that aggregates alerts from 90+ providers, deduplicates them with AI, and automates remediation via YAML or visual workflows.
Self-hosted endpoint monitoring with status pages
Gatus is a self-hosted monitor that probes HTTP endpoints, DNS records, and other services on a schedule and publishes the results on a status page.
Surveys and in-product research on your own infrastructure
Formbricks covers both link surveys and in-product micro-surveys triggered by user behaviour, which is the combination most research tooling splits across two paid products.
Open-source database for full-text, vector, and hybrid search
Manticore Search is an open-source database engine for full-text, vector, and hybrid search with real-time indexing and a SQL-first interface.
Spreadsheet UI over a relational database you can self-host
Grist is a spreadsheet with a relational database underneath: columns link records across tables, and formulas run in Python. Teams browse the same data as grids, cards, calendars, or charts.
Free open-source macOS dictation with on-device AI cleanup
FluidVoice is a free macOS dictation app that transcribes speech on the machine and types polished text into any app, positioned as a local alternative to Wispr Flow.
The proprietary products most often replaced by something in this directory.
Notion
Notion Labs
Documents, databases, and project tracking in one workspace
13 open source alternatives
Google Analytics
Web and product analytics tied to Google's ad stack
12 open source alternatives
Datadog
Datadog
Infrastructure monitoring, logs, and tracing in one platform
10 open source alternatives
Dropbox
Dropbox
File sync and sharing across devices and teams
10 open source alternatives
Slack
Salesforce
Channel based team messaging with a large integration ecosystem
10 open source alternatives
Auth0
Okta
Hosted identity covering login, SSO, and multi-factor
9 open source alternatives
Where the directory is growing fastest this month.
Running and talking to language models, on your own hardware or someone else's.
32 products+14.2%
Frameworks and runtimes for building, orchestrating, and supervising autonomous agents.
73 products+12.4%
Assistants that read a codebase and carry out engineering work from natural language instructions.
26 products+11%
Utilities that sit in the daily loop of writing, testing, and shipping software.
292 products+7.2%
Tools that connect applications and run multi step processes without manual work.
57 products+6.4%
Metrics, logs, traces, and error reporting for systems in production.
60 products+6.1%
774 results