All Open Source Apps

An open source, Google Zanzibar-inspired authorization database that models permissions as relationships and evaluates fine-grained access checks at massive scale with single-digit millisecond latency.

All-in-one secure mail and collaboration server covering IMAP, JMAP, SMTP, CalDAV, CardDAV, and WebDAV in a single memory-safe Rust binary.

Open-source agentic security automation platform that runs AI agents and durable workflows at scale with sandboxed execution.

Run and fine-tune LLMs, diffusion, audio and embedding models on your own hardware, from a native desktop app, a browser UI, or a Python library.

Privacy-first, opinionated feed reader built for speed and control—no bloat, no trackers, no JavaScript overhead.

Unofficial Bitwarden-compatible server in Rust — run the full Bitwarden ecosystem on a Raspberry Pi using every official client you already have, without the multi-container overhead.

Self-hosted WakaTime-compatible coding statistics backend that gives developers full control over their coding activity data.

An open source AI-native proxy that secures, observes, and governs agent-to-LLM, agent-to-tool, and agent-to-agent communication through MCP, A2A, and unified LLM routing.

Self-hosted web archiving that saves HTML, PDFs, screenshots, media, and code in open formats you own forever

Open-source, self-hostable authentication platform with passkeys, biometric login, SSO, MFA, and GraphQL admin API — a full Auth0/Clerk/Firebase alternative for SaaS and mobile apps.

eBPF-powered observability with AI root cause analysis — zero code changes required, full-stack visibility out of the box.

The batteries-included Python agent harness — planning, sub-agents, filesystem, shell, memory, and skills bundled in, built on LangGraph.

Open-source collaborative knowledge platform with real-time editing, AI writing tools, and full self-hosting control — built by the French and German governments.

The offline-first diagram editor that puts security above all else — no account, no data leaving your machine, no compromises.

Lightweight self-hosted personal finance manager with AI receipt scanning, multi-currency support, and MCP integration for complete data privacy.

A Postgres-backed orchestration engine for background tasks, AI agents, and durable workflows that replaces Redis queues and multi-datastore durable execution platforms with a single self-hostable service.

Open-source metering, billing, and revenue infrastructure for product-led companies that need complete control over their pricing stack.

Privacy-first, cross-platform voice-to-text with local AI and cloud options

Postgres-native ETL that streams change data capture in real time to Snowflake, BigQuery, ClickHouse, S3, and Kafka — up to 10x faster than general-purpose pipelines, managed through a familiar Postgres SQL interface.

A Rust-native, S3-compatible distributed object storage system built for AI, data lake, and big data workloads, licensed under Apache 2.0 with no AGPL restrictions.

Fast, lightweight, schema-less search backend in Rust — microsecond queries, 30MB RAM, no document storage required.

Chromium without Google tracking — privacy-focused, drop-in replacement

A native macOS dictation app that turns speech into text on-device with Whisper or Parakeet models, then cleans the result up with an AI pass tuned to whichever app you are typing into.

A clean, Markdown-based publishing platform for writers, with built-in ActivityPub federation for connecting to the wider fediverse.