Browse Latest Open Source Tools & Software
The newest open source tools and software added to OpenAlternative, sorted by publish date. Discover what's fresh in the open source world.
Run LLMs locally with minimal setup, maximum hardware support
Stars
135,181Last commit
3 hours agoLicense
MIT
C/C++ inference engine for large language models, supporting quantization, multi-GPU, Apple Silicon, and an OpenAI-compatible server across a wide range of hardware.
Open Source Alternative to:
A self-building CRM powered by your email
Stars
Stars growing quickly over the last 30 days6,333Last commit
6 hours agoLicense
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:
Open source metrics collection, storage, and alerting
Stars
67,631Last commit
16 hours agoLicense
Apache-2.0
Pull-based monitoring system with a multi-dimensional data model, PromQL query language, built-in alerting, and a time series database built for cloud native environments.
Open Source Alternative to:
Self-hosted AI runtime for text, voice, vision, and agents
Stars
50,377Last commit
3 hours agoLicense
MIT
Run LLMs, speech, image generation, and autonomous agents on your own hardware with an OpenAI-compatible API and 60+ swappable backends.
Open Source Alternative to:
Distributed OLAP database for real-time analytics at scale
Stars
6,177Last commit
2 days agoLicense
Apache-2.0
Sub-second SQL queries on fresh streaming data at petabyte scale, built for high-concurrency user-facing apps and AI agent backends.
Open Source Alternative to:
LLM observability: cost, latency, and traces in one place
Stars
13Last commit
7 days agoLicense
MIT
Drop-in observability platform for OpenAI, Anthropic, and Gemini that logs every request, tracks costs, traces agent workflows, and flags anomalies and PII.
Open Source Alternative to:
S3-compatible object storage built with Swift
Stars
Stars growing over the last 30 days583Last commit
2 months agoLicense
Apache-2.0
Self-hostable, Apache 2.0-licensed object storage with S3 compatibility, a built-in web console, and horizontal scaling from single node to sharded cluster.
Open Source Alternative to:
Run open-source LLMs locally on your own machine
Stars
187,077Last commit
5 hours agoLicense
MIT
Runs open-source language models locally with a simple setup, plus optional cloud access for larger models when local hardware isn't enough.
Open Source Alternative to:
Task management with GitHub sync and AI agents for devs
Stars
Stars growing quickly over the last 30 days6,333Last commit
6 hours agoLicense
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:
Keyboard-first email client with AI, chat, and tasks
Stars
Stars growing quickly over the last 30 days6,333Last commit
6 hours agoLicense
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 days6,333Last commit
6 hours agoLicense
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:
Persistent cloud VMs that hibernate and wake in seconds
Stars
Stars growing quickly over the last 30 days640Last commit
20 hours agoLicense
Apache-2.0
Provides always-on virtual machines for AI agents with full OS access, persistent state, elastic CPU/memory resizing, and instant checkpoints.
Open Source Alternative to:
Team chat with email, tasks, and docs in one workspace
Stars
Stars growing quickly over the last 30 days6,333Last commit
6 hours agoLicense
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:
Team chat, project management, and AI agents in one place
Stars
Stars growing over the last 30 days37,482Last commit
3 hours agoLicense
Apache-2.0
Workspace that combines team chat, project planning, and git management with AI agents that collaborate alongside your team on shared context.
Open Source Alternative to:
Common layer for composing and governing AI agents
Stars
Stars growing over the last 30 days11,386Last commit
4 hours agoLicense
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:
Desktop SQL client with built-in MCP for AI agent access
Stars
Stars growing over the last 30 days5,475Last commit
4 hours agoLicense
Apache-2.0
Desktop database client for PostgreSQL, MySQL/MariaDB, SQLite, and 14+ more databases, with a built-in MCP server, SQL notebooks, visual query builder, and a plugin system.
Open Source Alternative to:
Free database manager for SQL databases and beyond
Stars
52,437Last commit
6 hours agoLicense
Apache-2.0
Cross-platform database management tool for exploring, editing, and querying SQL databases including MySQL, PostgreSQL, SQLite, MariaDB, and more.
Open Source Alternative to:
Self-hosted CRM for business development teams
Stars
929Last commit
2 days agoLicense
MIT
Pipeline management, deal workspace, contacts, and two-way Gmail for BD teams. Runs on your own infrastructure, MIT licensed, no per-seat fees.
Open Source Alternative to:
Self-hosted SERP API for Google, Bing, Yandex, and more
Stars
Stars growing over the last 30 days1,585Last commit
4 days agoLicense
MIT
Query Google, Bing, Yandex, Baidu, DuckDuckGo, and Ecosia through one REST API. Self-host free under MIT, or use the managed cloud option.
Open Source Alternative to:
AI coding agent and CLI for complex terminal workflows
Stars
27,784Last commit
2 months agoLicense
Apache-2.0
Terminal-based coding agent powered by Grok 4.5 that plans, builds, tests, and deploys across any codebase with parallel subagents and plugin support.
Open Source Alternative to:
Track games, movies, anime, manga, and books in one place
Stars
Stars growing over the last 30 days611Last commit
6 hours agoLicense
MIT
Cross-platform collection manager for retro games, movies, TV shows, anime, manga, visual novels, and books with tier lists, visual boards, and import/export.
Open Source Alternative to:
Track your TV shows and movies on Android
Stars
2,168Last commit
2 days agoLicense
Unknown
Android app for tracking TV shows and movies you're watching, have watched, or plan to watch, powered by TMDb data.
Open Source Alternative to:
Track TV shows and movies, synced with Trakt.tv
Stars
1,473Last commit
4 days agoLicense
GPL-3.0
Android and iOS app for tracking TV shows and movies, managing watchlists, and syncing viewing history with Trakt.tv across devices.
Open Source Alternative to:
End-to-end encrypted location sharing for groups
Stars
82Last commit
25 days agoLicense
AGPL-3.0
Share your real-time location with family and friends using end-to-end encryption, geofence alerts, travel history, and multi-device tracking.
Open Source Alternative to:
On-device voice dictation for macOS with adaptive AI
Stars
Stars growing over the last 30 days13,075Last commit
1 day agoLicense
GPL-3.0
Free, open-source macOS dictation app that transcribes speech locally, polishes output with an on-device AI model, and adapts tone to whichever app you're typing into.
Open Source Alternative to:
Run multiple AI coding agents in parallel, side by side
Stars
Stars growing quickly over the last 30 days125,652Last commit
3 hours agoLicense
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:
Desktop AI agent with persistent memory across platforms
Stars
Stars growing over the last 30 days263,604Last commit
3 hours agoLicense
MIT
Cross-platform desktop agent from Nous Research that connects to Telegram, Discord, Slack, WhatsApp, and more, with persistent memory, scheduling, and isolated sandboxing.
Open Source Alternative to:
Self-hosted sticky notes with better organization
Stars
47Last commit
16 days agoLicense
MIT
A self-hosted, open-source note-taking app that keeps the Google Keep sticky-note feel while adding folders, timelines, list views, and import support.
Open Source Alternative to:
Fast, local-first Git GUI built in Rust
Stars
Stars growing quickly over the last 30 days1,041Last commit
5 hours agoLicense
AGPL-3.0
Open source Git GUI for Linux, macOS, and Windows, built in Rust for speed on large repositories with full diff, merge, and history tooling.
Open Source Alternative to:
Free, open-source framework for cross-platform game development
Stars
14,638Last commit
24 hours agoLicense
Unknown
Build games in C# that run on Windows, macOS, Linux, iOS, Android, and major consoles. No royalties, no subscriptions, no runtime fees.
Open Source Alternative to:
Code with Claude, Codex, Gemini, and more in one workspace
Stars
Stars growing over the last 30 days2,235Last commit
4 hours agoLicense
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:
Inspect, debug, and replay BullMQ queues visually
Stars
456Last commit
6 months agoLicense
MIT
Desktop app and embeddable dashboard for BullMQ that shows live queue metrics, job runs, FlowProducer graphs, and scheduler status without touching Redis directly.
Open Source Alternative to:
Minimal terminal coding agent you can fully customize
Stars
Stars growing over the last 30 days122,149Last commit
4 hours agoLicense
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:
Full observability for AI agents in production
Stars
4,755Last commit
2 days agoLicense
MIT
Open-source platform for monitoring AI agents: captures traces, surfaces failure patterns, alerts on issues, and helps you verify fixes with automated evals.
Open Source Alternative to:
Self-hosted project management with boards and test tracking
Stars
Stars growing quickly over the last 30 days445Last commit
5 hours agoLicense
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:
Schedule posts to every major social network, self-hosted
Stars
Stars growing quickly over the last 30 days869Last commit
1 day agoLicense
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:
Trace, evaluate, and protect every LLM call in one SDK
Stars
12Last commit
6 days agoLicense
AGPL-3.0
An AI gateway that sits on the request path to handle PII redaction, prompt injection blocking, tracing, evals, and cost tracking for OpenAI, Anthropic, and Gemini.
Open Source Alternative to:
Build and play games inside a game engine that runs live
Stars
6,537Last commit
5 hours agoLicense
MIT
A game creation platform built on Valve's Source 2 engine, letting you build, share, and play games without leaving the environment.
Open Source Alternative to:
AI agent workflows built natively into GitHub
Stars
Stars growing quickly over the last 30 days1,451Last commit
2 days agoLicense
MIT
An open-source GitHub bot that runs AI agents to review PRs, triage issues, fix CI failures, and ship code using any LLM provider.
Open Source Alternative to:
Free, cross-platform video editor that's easy to learn
Stars
6,790Last commit
1 day agoLicense
GPL-3.0
A free, open-source video editor for Linux, Mac, and Windows with animation, effects, multi-track editing, and 3D title rendering.
Open Source Alternative to:
Local-first, Git-native personal knowledge base with AI
Stars
20,521Last commit
14 hours agoLicense
AGPL-3.0
A free, open source note-taking app built on plain Markdown files, Git version control, and direct AI model integration. No account required.
Open Source Alternative to:
Messaging SDK with AI agents for web, iOS, and Android
Stars
553Last commit
2 days agoLicense
Apache-2.0
Build branded chat apps with AI agents, group messaging, document exchange, and digital wallets using React and React Native components.
Open Source Alternative to:
Postiz – The All-in-One agentic social media scheduling tool
Highseat
Stellar Hosted
CodeRabbit