Collection
Projects you can run entirely on your own infrastructure.
Open-source OpenTelemetry observability for LLM apps and AI agents
OpenLIT is an Apache-2.0 platform tracing and evaluating LLM apps and AI agents over OpenTelemetry, self-hosted with Docker or Kubernetes.
Proof-of-work CAPTCHA alternative with no cookies or tracking
ALTCHA is a self-hosted CAPTCHA alternative that blocks bots and form spam with a silent proof-of-work challenge instead of image puzzles.
Federated book tracking and social reading without the ad platform
BookWyrm is a federated social reading platform: readers track what they are reading, write reviews, and follow friends across independently run instances.
Open-source prototyping with built-in usability testing
Quant-UX is a free, open-source tool for building interactive prototypes, running usability tests with real users, and analyzing results with heatmaps.
Self-hosted open-source web analytics with full data ownership
OpenWebAnalytics is a GPL-licensed web analytics framework that site owners host on their own PHP and MySQL servers to track visitors with full data ownership.
Stateless open-source API gateway for aggregation and traffic control
KrakenD is a stateless, open-source API gateway written in Go that merges multiple backend calls into single endpoints with authentication, rate limiting, and observability.
Open-source design canvas with forms and database
Grida is an open-source design platform that pairs a Figma-style vector canvas with customer-facing forms, a Postgres-backed database, and a content backend for designers and frontend developers.
Peer-to-peer encrypted team chat over Tor with no servers
Quiet is a peer-to-peer team chat app that syncs encrypted messages directly between member devices over Tor, with no central server.
Self-hosted health intelligence platform unifying wearable data
Open Wearables is a self-hosted, MIT-licensed platform that unifies wearable data behind one API with open health scores.
Self-hosted tasks and chores with fair rotation and smart scheduling
Donetick is a self-hosted app for managing household tasks and chores with recurring schedules, assignee rotation, and shared circles.
End-to-end encrypted messaging and collaboration for enterprises
Wire is an end-to-end encrypted messaging and collaboration platform for enterprises and governments, with open-source clients and cloud or on-premises hosting.
Self-hosted open-source billing and invoicing for hosting providers
Paymenter is a self-hosted open-source billing platform for hosting providers, automating subscriptions, invoicing, and service provisioning.
Post-quantum encrypted storage, sync, and sharing you can self-host
Peergos is a peer-to-peer, end-to-end encrypted drive for storing, syncing, and sharing files, with a self-hostable open-source server.
Privacy-focused proof-of-work CAPTCHA with no tracking or puzzles
mCaptcha is a free, self-hosted CAPTCHA that protects websites and forms with proof-of-work challenges instead of image puzzles or visitor tracking.
Open-source KYC, KYB, and risk decisioning workflows for fintech teams
Ballerine is an open-source platform for identity verification and risk decisioning aimed at fintech and marketplace teams. It combines vendor orchestration for KYC, KYB, and sanctions screening with a no-code rules and workflow engine plus a case-management backoffice for manual review. The codebase is a TypeScript monorepo with a NestJS workflows service and React frontends, and the company also sells a managed SaaS with usage-based pricing. Note: the public repo currently banners itself as undergoing a major rebuild and not actively supported, so intake should confirm maintenance status before publication.
dbt-native data observability with tests, lineage, and alerts
Elementary Data is a dbt-native data observability tool that monitors tables with tests, anomaly detection, lineage, and alerts.
Open-source visual website builder for fast, responsive sites
Frappe Builder is a self-hosted, low-code website builder that turns drag-and-drop designs into fast, responsive pages with one-click publishing.
Agent-based infrastructure and application monitoring for hybrid IT
Checkmk is a self-hosted monitoring platform for servers, networks, containers, and cloud services, with automatic discovery and alerting built in.
Error tracking that speaks the Sentry protocol
GlitchTip accepts events from the official Sentry SDKs, which means adopting it is a DSN change rather than an instrumentation project. Stack traces, breadcrumbs, releases, and issue grouping all work as expected.
Open-source usage metering and billing for AI and API products
OpenMeter is an open-source usage-metering and billing platform for AI and API products, turning CloudEvents usage data into entitlements, Stripe invoices, and credit grants.
Open-source LMS for creating and running online courses.
LearnHouse is an open-source learning management system for creating and running online courses with chapters, activities, quizzes, and certificates.
Open-source user onboarding platform for product tours, checklists, and surveys
Usertour is a self-hostable user onboarding platform for building in-app product tours, checklists, and surveys, positioned as an open-source alternative to Userflow and Appcues.