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Browse Trending Open Source Tools This Month

Open source tools gaining GitHub stars fastest over the last 30 days. Ranked by growth rate rather than raw star count, so genuine breakouts surface above established projects.

A team of AI agents in a chat app, on your own machine
  • Stars

    Stars growing quickly over the last 30 days11,163
  • Last commit

    33 minutes ago
  • License

    Apache-2.0
Run a team of AI agents locally on your own API keys and subscriptions, with scheduled tasks, computer use, and Gmail, GitHub and Slack integrations.

Open Source Alternative to:

Free, open-source image editor built for Mac compositing
  • Stars

    Stars growing quickly over the last 30 days18,377
  • Last commit

    33 minutes ago
  • License

    MIT
Mac-native Photoshop alternative built around compositing and post-processing workflows, with layers, masks, blend modes, filters, and background removal.

Open Source Alternative to:

Lightroom-compatible RAW editor, no subscription
  • Stars

    Stars growing quickly over the last 30 days1,612
  • Last commit

    3 hours ago
  • License

    MIT
Non-destructive RAW photo editor for macOS, Linux, and Windows that reads Lightroom catalogs, presets, and camera profiles. Free, MIT licensed, built in Rust.

Open Source Alternative to:

Self-hosted AI agents that do real work on your machine
  • Stars

    Stars growing quickly over the last 30 days6,702
  • Last commit

    34 minutes ago
  • License

    Apache-2.0
Run persistent AI bots that sign into your tools, complete tasks autonomously, and ask for approval when needed. Your keys, your model, your infrastructure.

Open Source Alternative to:

Message your coding agents as bots from any device
  • Stars

    Stars growing quickly over the last 30 days1,721
  • Last commit

    2 hours ago
  • License

    Apache-2.0
Run Claude Code, Codex, Cursor, and 40+ AI agents as persistent bots across iPhone, Mac, Windows, and Linux with group chats, approvals, and end-to-end encryption.

Open Source Alternative to:

Issue tracker where people and AI agents share one board
  • Stars

    Stars growing quickly over the last 30 days2,139
  • Last commit

    11 hours ago
  • License

    AGPL-3.0
Self-hosted issue tracker with boards, timelines, initiatives and dashboards, where AI agents take assigned issues like teammates. AGPL-3.0, no per-seat fees.

Open Source Alternative to:

AI-powered coding made simple and efficient
  • Stars

    Stars growing quickly over the last 30 days41,334
  • Last commit

    30 minutes ago
  • License

    MIT
Advanced AI coding assistant that enhances development workflow with intelligent code suggestions, automated debugging, and seamless integration.

Open Source Alternative to:

Self-hosted enterprise agent platform with real permissions
  • Stars

    Stars growing quickly over the last 30 days9,881
  • Last commit

    1 hour ago
  • License

    MIT
Deploy AI agents inside your own infrastructure with document-grounded answers, computer use, and support for any AG-UI-compatible agent framework.

Open Source Alternative to:

Graph database built for GraphRAG and multi-tenant AI apps
  • Stars

    Stars growing quickly over the last 30 days10,507
  • Last commit

    4 hours ago
  • License

    SSPL-1.0
Graph database using sparse matrix representation and linear algebra to deliver ultra-low latency Cypher queries, native multi-tenancy, and built-in GraphRAG support for AI applications.

Open Source Alternative to:

Run multiple AI coding agents in parallel, side by side
  • Stars

    Stars growing quickly over the last 30 days113,484
  • Last commit

    38 minutes ago
  • License

    MIT
Agent Development Environment that runs Claude Code, Codex, Gemini, and other CLI agents in parallel across isolated git worktrees, with terminals, browser, diff review, and git tools built in.

Open Source Alternative to:

Task management with GitHub sync and AI agents for devs
  • Stars

    Stars growing quickly over the last 30 days6,083
  • Last commit

    31 minutes ago
  • License

    AGPL-3.0
Task manager built for engineering teams, combining status tracking, priority management, GitHub integration, and AI agents that can close tasks automatically.

Open Source Alternative to:

Team chat with email, tasks, and docs in one workspace
  • Stars

    Stars growing quickly over the last 30 days6,083
  • Last commit

    31 minutes ago
  • License

    AGPL-3.0
Team chat app with inline threads, mention-based sharing, a unified inbox for chat and email, and an AI agent that works across your full workspace.

Open Source Alternative to:

Keyboard-first email client with AI, chat, and tasks
  • Stars

    Stars growing quickly over the last 30 days6,083
  • Last commit

    31 minutes ago
  • License

    AGPL-3.0
An AI-powered email client that combines inbox management, chat, tasks, and AI agents in one shared workspace, built for keyboard-driven workflows.

Open Source Alternative to:

Markdown docs wired into tasks, email, and agents
  • Stars

    Stars growing quickly over the last 30 days6,083
  • Last commit

    31 minutes ago
  • License

    AGPL-3.0
Collaborative markdown documents with real-time CRDT editing, AI agent cursors, mention linking, and built-in properties tied to your tasks, channels, and email.

Open Source Alternative to:

A self-building CRM powered by your email
  • Stars

    Stars growing quickly over the last 30 days6,083
  • Last commit

    31 minutes ago
  • License

    AGPL-3.0
Automatically creates and enriches contacts, companies, and deal threads from your team's email. No data entry, no imports, no admin overhead.

Open Source Alternative to:

A verified workspace where AI agents store and build knowledge
  • Stars

    Stars growing quickly over the last 30 days665
  • Last commit

    2 days ago
  • License

    MIT
Busabase gives AI agents a shared database, knowledge base, and skills registry where every proposed change goes through human review before becoming canonical data.

Open Source Alternative to:

Chromium browser built for sharing with AI agents
  • Stars

    Stars growing quickly over the last 30 days21,332
  • Last commit

    10 hours ago
  • License

    MIT
A Chromium-based browser that lets AI agents like Claude Code and Codex run web automation using your real logged-in sessions, without interrupting your browsing.

Open Source Alternative to:

Run coding agents from your phone, desktop, or terminal
  • Stars

    Stars growing quickly over the last 30 days22,824
  • Last commit

    1 hour ago
  • License

    Apache-2.0
Self-hosted orchestrator for coding agents like Claude Code, Codex, and Cursor, controlled from phone, desktop, web, or CLI.

Open Source Alternative to:

Self-hosted SEO platform for keyword, backlink, and rank tracking
  • Stars

    Stars growing quickly over the last 30 days26,086
  • Last commit

    3 days ago
  • License

    MIT
Manage keyword research, backlink analysis, competitor monitoring, and rank tracking without expensive SaaS subscriptions. Self-hostable, MIT-licensed, uses DataForSEO.

Open Source Alternative to:

Voice-to-text that works offline, privately, on any app
  • Stars

    Stars growing quickly over the last 30 days10,568
  • Last commit

    49 minutes ago
  • License

    MIT
Dictation app powered by OpenAI Whisper and NVIDIA Parakeet. Runs locally on macOS, Windows, and Linux with zero data retention and 100+ language support.

Open Source Alternative to:

Open-source newsletter app billed by emails sent
  • Stars

    Stars growing quickly over the last 30 days1,597
  • Last commit

    11 hours ago
  • License

    AGPL-3.0
Newsletter platform billed by emails sent, not list size, with scheduling, a public website, AI agent access and deliverability tools from $19 a month.

Open Source Alternative to:

Org chart, budgets, and governance for AI agent teams
  • Stars

    Stars growing quickly over the last 30 days110,289
  • Last commit

    33 minutes ago
  • License

    MIT
Manages teams of AI agents across business functions with org charts, goal alignment, cost tracking, ticket tracing, and board-level governance controls.

Open Source Alternative to:

Fast, AI-native web browser built for automation and scraping
  • Stars

    Stars growing quickly over the last 30 days40,880
  • Last commit

    4 hours ago
  • License

    AGPL-3.0
Purpose-built headless browser that delivers 10x faster performance and 10x lower memory usage compared to Chrome headless for web automation and AI workflows.

Open Source Alternative to:

Press a key, speak, release. Text appears instantly.
  • Stars

    Stars growing quickly over the last 30 days37,111
  • Last commit

    7 hours ago
  • License

    MIT
Cross-platform desktop app that transcribes your voice into any text field using a keyboard shortcut, with all processing done locally on your machine.

Open Source Alternative to:

Modern open-source billing platform for hosting businesses
  • Stars

    Stars growing quickly over the last 30 days2,817
  • Last commit

    8 hours ago
  • License

    MIT
Automate subscriptions and manage payments with a flexible, open-source billing system designed specifically for hosting providers.

Open Source Alternative to:

One API to deploy and run agents on any model or machine
  • Stars

    Stars growing quickly over the last 30 days3,343
  • Last commit

    36 minutes ago
  • License

    Apache-2.0
Production-ready agent infrastructure that handles state, machines, permissions, and history so you don't have to build the platform yourself.

Open Source Alternative to:

Self-hostable omnichannel chatbot platform for agencies
  • Stars

    Stars growing quickly over the last 30 days1,066
  • Last commit

    4 hours ago
  • License

    MIT
Open source agentic chat marketing platform you can self-host, white-label, and resell. Automate omnichannel conversations across WhatsApp, Messenger, Instagram, Telegram, Zalo, TikTok, Email, and Webchat with a flow builder, shared inbox, AI agents, CRM, and broadcasts.

Open Source Alternative to:

Schedule, analyze, and manage 30+ social media accounts
  • Stars

    Stars growing quickly over the last 30 days40,702
  • Last commit

    5 hours ago
  • License

    AGPL-3.0
Self-hostable social media scheduler that lets you plan, generate, and publish content across 30+ networks with AI assistance, team collaboration, and automation integrations.

Open Source Alternative to:

Self-hosted AI visibility tracking for your brand
  • Stars

    Stars growing quickly over the last 30 days552
  • Last commit

    15 hours ago
  • License

    MIT
Tracks how ChatGPT, Gemini, Claude, Perplexity, and other AI engines mention your brand, which competitors appear, and which sources get cited.

Open Source Alternative to:

Track and improve your brand's visibility in AI search
  • Stars

    Stars growing quickly over the last 30 days226
  • Last commit

    45 minutes ago
  • License

    MIT
Monitors how your brand appears across ChatGPT, Perplexity, Google AI Overviews, and other AI platforms, then turns those insights into prioritized content and optimization actions.

Open Source Alternative to:

Design editor that opens Figma files, runs AI, and stays local
  • Stars

    Stars growing over the last 30 days9,551
  • Last commit

    1 hour ago
  • License

    MIT
A Figma-compatible design editor with built-in AI chat, headless CLI, real-time P2P collaboration, and a Vue SDK for building custom editors. No account needed.

Open Source Alternative to:

Ultra-fast AI gateway with enterprise-grade reliability
  • Stars

    Stars growing over the last 30 days9,295
  • Last commit

    31 minutes ago
  • License

    Apache-2.0
Open-source AI gateway delivering 50x faster performance than alternatives. Access 1000+ models from 8+ providers with built-in governance, fallback, and observability.

Open Source Alternative to:

Schedule posts to every major social network, self-hosted
  • Stars

    Stars growing quickly over the last 30 days799
  • Last commit

    3 hours ago
  • License

    AGPL-3.0
Plan, schedule, and auto-publish social media content across 10+ networks with a visual calendar, AI captions, team approvals, and self-hosting support.

Open Source Alternative to:

Complete IT infrastructure monitoring made simple
  • Stars

    Stars growing quickly over the last 30 days2,633
  • Last commit

    6 hours ago
  • License

    GPL-2.0
Monitor your entire IT infrastructure with 2,000+ plugins, automated discovery, and scalable architecture. Open source and enterprise solutions available.

Open Source Alternative to:

Fast grammar checking that respects your privacy
  • Stars

    Stars growing over the last 30 days17,365
  • Last commit

    1 hour ago
  • License

    Apache-2.0
Open source grammar checker that analyzes your writing quickly while keeping your data completely private and secure on your device.

Open Source Alternative to:

Open source modular logistics platform for faster app development
  • Stars

    Stars growing over the last 30 days4,493
  • Last commit

    9 hours ago
  • License

    AGPL-3.0
Fleetbase is a comprehensive open source logistics suite offering API, TMS, driver and customer apps for streamlined operations and development.

Open Source Alternative to:

pi

AI
Minimal terminal coding agent you can fully customize
  • Stars

    Stars growing over the last 30 days119,586
  • Last commit

    30 minutes ago
  • License

    MIT
Terminal-based coding agent with a minimal core, 15+ LLM providers, tree-structured session history, and a TypeScript extension system for building your own workflows.

Open Source Alternative to:

An agentic CRM that keeps records current automatically
  • Stars

    Stars growing over the last 30 days11,804
  • Last commit

    22 hours ago
  • License

    MIT
Open source CRM with AI agents that read your inbox, enrich contacts and companies, schedule follow-ups, and build new agents from plain-language descriptions.

Open Source Alternative to:

Common layer for composing and governing AI agents
  • Stars

    Stars growing over the last 30 days11,175
  • Last commit

    31 minutes ago
  • License

    Apache-2.0
Meta-harness that sits above Claude Code, Codex, and other AI agents to add policy enforcement, sandboxing, and real-time collaborative sessions.

Open Source Alternative to:

Self-hosted project management with boards and test tracking
  • Stars

    Stars growing quickly over the last 30 days396
  • Last commit

    1 hour ago
  • License

    AGPL-3.0
Self-hosted, open-source project management tool with boards, milestones, portals, time tracking, and test management on your own infrastructure.

Open Source Alternative to:

Code with Claude, Codex, Gemini, and more in one workspace
  • Stars

    Stars growing over the last 30 days2,162
  • Last commit

    1 hour ago
  • License

    MIT
Desktop coding workspace that connects to AI subscriptions you already have, with parallel agents, worktrees, one-click PRs, and multi-project management.

Open Source Alternative to:

Mac cleaner, app manager, and system monitor in one
  • Stars

    Stars growing over the last 30 days73,641
  • Last commit

    2 hours ago
  • License

    GPL-3.0
Native macOS app that cleans caches, uninstalls apps with leftovers, maps disk usage, and shows live system metrics. One-time purchase, lifetime updates.

Open Source Alternative to: