Freemium
Sentry
Open SourceError Tracking · Monitoring & Observability
Error monitoring and tracing for every stack, with clear stack traces.
errorsmonitoringtracingapm
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Error Tracking · Monitoring & Observability
Error monitoring and tracing for every stack, with clear stack traces.
Serverless & BaaS · Database
Open-source Firebase alternative: Postgres, auth, storage, realtime and functions.
Pipelines & ETL · Data & Analytics
Open-source data integration with 550+ prebuilt connectors.
Agent & LLM Frameworks · AI for Developers
All-in-one desktop + docker app for chatting with your documents.
Mobile Backend & Services · Mobile Development
Self-hostable backend platform: auth, databases, storage and functions.
Passwords & IDs · Security
Open-source password manager with a free generator and vault.
Scheduling & Booking · API Tools
Open-source scheduling infrastructure — Calendly alternative with booking links, teams and an API you can self-host.
Agent & LLM Frameworks · AI for Developers
Node-graph UI for Stable Diffusion and other generative models.
Self-Hosted PaaS · Cloud Platforms
Open-source, self-hosted Heroku/Netlify alternative.
Agent & LLM Frameworks · AI for Developers
Open-source LLM app platform: agents, workflows and RAG (trending).
Headless CMS · Backend
Open-source data platform that wraps any SQL database with APIs.
Feature Flags · DevOps
Open-source feature flags and remote config with cloud or self-hosted deployment and per-environment targeting.
Agent & LLM Frameworks · AI for Developers
Drag-and-drop builder for LLM apps and agents on LangChain.
Headless CMS · Backend
Open-source publishing platform for blogs and newsletters.
Hosting & Collaboration · Git & Version Control
DevOps platform with Git hosting and built-in CI/CD; self-hostable.
ORMs · Backend
Instant GraphQL APIs over your databases with permissions built in.
Agent & LLM Frameworks · AI for Developers
Open-source LLM observability — logging, caching, rate limiting and cost tracking behind a one-line proxy.
API Clients · API Tools
Lightweight, open-source API development ecosystem in the browser.
NoSQL · Database
Purpose-built time-series database for metrics and events.
Web Servers & Proxies · DevOps
Popular open-source API gateway and microservices management.
Agent & LLM Frameworks · AI for Developers
Open-source LLM observability: traces, evals and prompt management.
Models & LLM APIs · AI for Developers
Open-source, multi-provider chat UI with agents and artifacts.
Models & LLM APIs · AI for Developers
Open-source AI chat framework with plugins and agent marketplace.
Authentication · API Tools
Open-source auth infrastructure with a beautiful admin console — OIDC/OAuth, SSO and user management, self-hostable.