License
AGPL-3.0-only is a reviewed custom licence and does not qualify for an open-source badge. Read its exact terms before use.
Distributed search and analytics engine with vector search
Elasticsearch is a distributed search and analytics engine for near-real-time full-text, vector, hybrid, and geospatial search.
Headless browser built from scratch for AI agents and automation
Lightpanda is an AGPL-3.0-only headless browser written from scratch in Zig for AI agents and automation, driven via CDP and a JavaScript API.
Private messenger with end-to-end encrypted messaging and calls
Signal is a free, nonprofit messenger with end-to-end encrypted texts, calls, and group chats across Android, iOS, and desktop.
Self-hosted zero-trust access to apps and infrastructure
Pangolin is a self-hosted zero-trust platform built on WireGuard that gives teams identity-aware access to apps, infrastructure, and AI workloads.
Free and open-source machine translation API you can self-host.
LibreTranslate is a free, open-source machine translation API powered by Argos Translate that runs on your own server instead of a third-party cloud.
Free open-source research assistant that collects, cites, and shares sources
Zotero is a free, open-source research assistant that collects, organizes, cites, and shares research sources across desktop, mobile, and the web.
Open-source finance management with invoicing, bank sync, and AI assistance
Midday is an open-source finance management app for freelancers and small businesses covering invoicing, bank sync, reconciliation, time tracking, and file storage.
Goals-focused open-source project management for non-project managers
Leantime is an AGPL-licensed, goals-focused project management system for non-project managers, connecting tasks to goals through kanban, calendar, table, and Gantt views with self-hosting or managed Pro hosting.
Serverless link shortener with analytics, running on Cloudflare
Sink is a self-hosted link shortener that runs entirely on Cloudflare Workers, with custom slugs, visit analytics, and link controls.
Self-hosted online editors for documents, spreadsheets, and presentations.
ONLYOFFICE Docs is a self-hosted online office suite for editing text documents, spreadsheets, presentations, and PDF forms in a browser.
Self-hosted monitoring for networks, servers, and cloud
Zabbix is a self-hosted monitoring platform that tracks networks, servers, virtual machines, and cloud services from one distributed setup, with agents and agentless checks feeding dashboards, alerting, and escalation under a free AGPL license.
The to-do app to organize your life
Vikunja is an AGPLv3-licensed open-source to-do and task manager that organizes work in lists, Kanban boards, Gantt charts, and tables, self-hosted with Docker or native binaries or used as paid EU-hosted Vikunja Cloud, with one-click-style importers from Trello, Todoist, and Microsoft To-Do.
Self-hosted, Pusher-compatible WebSockets server
soketi is a self-hosted WebSockets server that implements the Pusher Protocol v7, so apps built on Pusher SDKs can switch hosts with only host and credential changes.
Open-source feedback boards for feature requests and voting
Fider is an open-source feedback portal where users submit feature requests, discuss them, and vote on what matters most.
Open-source event management and ticket selling for concerts and conferences
Hi.Events is an open-source event management and ticket-selling platform for concerts and conferences, free for unlimited free events.
Simple, elegant Matrix chat with end-to-end encryption
Cinny is an open-source Matrix client with a simple, elegant interface for encrypted direct messages and group conversations.
Self-hosted open-source link-in-bio page builder and Linktree alternative
LinkStack is a self-hosted, open-source profile-page platform that gathers every important link in one place, as an alternative to hosted services such as Linktree.
Self-hosted WireGuard VPN with per-connection MFA and built-in SSO
Defguard is a self-hosted access platform that combines WireGuard VPN, identity management, and per-connection multi-factor authentication.
Open-source API client for REST, GraphQL, and WebSocket testing
Firecamp is a free, open-source API development client for testing REST, GraphQL, WebSocket, and SocketIO endpoints from one desktop or web app.
Open-source headless CMS for technical content
Vrite is an open-source workspace for creating, managing, and delivering technical content such as product documentation, technical blogs, and knowledge bases.
Cookieless, privacy-first web analytics with error tracking
Swetrix is a self-hosted web analytics platform with cookieless, GDPR-compliant tracking, real-time dashboards, error tracking, and performance monitoring.
Open-source AI testing agent for zero-code UI, API, and security validation
Hercules is an open-source AI testing agent from TestZeus that runs UI, API, security, accessibility, and visual checks from plain Gherkin scenarios.
Open-source time tracking and team management platform
Ever Teams is an open-source time tracking and workforce management platform with task boards, project costing, and desktop and mobile timers.
Self-hostable platform for deploying and scaling web apps
Stormkit is a self-hostable application platform that deploys web apps from Git with previews, domains, a database, auth, and analytics.
Open-source, self-hosted coding time tracker compatible with WakaTime.
Ziit is a free, open-source, self-hosted coding time tracker that turns editor heartbeats into statistics and dashboards.
Cookieless, GDPR-compliant web analytics you can self-host
Prisme Analytics is a self-hosted, privacy-focused web analytics platform written in Go, offering real-time insights with unlimited data retention and no cookie banners.
Open-source project management with tasks, docs, and time tracking
Manage is a free, open-source project management platform where small teams track tasks, keep docs, and log time in one self-hosted workspace.
Self-hosted event ticketing with card payments and no per-ticket fees
Chobble Tickets is a self-hosted event ticketing system for selling paid and free tickets online, with card payments and no per-ticket platform fee.
Free open-source accounting software for small business servers
Frappe Books is free, open-source accounting software that small businesses and freelancers install on their own server and use in a web browser.