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.
Powerful screen capture and file sharing tool for Windows
Stars
40,041Last commit
19 hours agoLicense
GPL-3.0
ShareX is a free, open-source program that captures or records any area of your screen and shares it with a single keypress, supporting various file types and destinations.
Open Source Alternative to:
Open-source e-commerce for modern developers
Stars
36,722Last commit
7 hours agoLicense
MIT
Flexible, customizable e-commerce platform with headless architecture, built-in features, and extensive plugin ecosystem for scalable online stores.
Open Source Alternative to:
Run open-source LLMs locally on your own machine
Stars
182,962Last commit
10 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:
AI pair programmer that works inside your terminal
Stars
49,518Last commit
5 months agoLicense
Apache-2.0
Terminal-based AI coding tool that lets you edit existing codebases or start new projects using LLMs like Claude, GPT, and DeepSeek.
Open Source Alternative to:
Unlock Product Insights with Open-Source Analytics
Stars
40,248Last commit
7 hours agoLicense
MIT
All-in-one product analytics platform. Track user behavior, run experiments, and make data-driven decisions to grow your product.
Open Source Alternative to:
Simple, speedy, and secure link shortener with analytics
Stars
7,210Last commit
16 days agoLicense
AGPL-3.0
A serverless link shortener that runs entirely on Cloudflare, offering URL compression, analytics, and customizable slugs.
Open Source Alternative to:
Free open-source appointment booking for any business
Stars
4,431Last commit
1 day agoLicense
GPL-3.0
Self-hosted appointment scheduling solution with Google Calendar sync, customizable workflows, and no monthly fees. Perfect for healthcare, salons, and service businesses.
Open Source Alternative to:
Lightning-fast, typo-tolerant search engine for all
Stars
26,870Last commit
9 hours agoLicense
GPL-3.0
Open-source search solution offering blazing speed, typo tolerance, and effortless scalability for developers and businesses.
Open Source Alternative to:
Private workspace for notes, tasks, and databases
Stars
8,908Last commit
1 day agoLicense
Unknown
A local-first, encrypted workspace for notes, tasks, databases, and chats. Your data stays on your device, syncs peer-to-peer, and never passes through a central server.
Open Source Alternative to:
Self-hosted uptime monitoring with a clean dashboard
Stars
92,391Last commit
15 hours agoLicense
MIT
Monitors websites, APIs, and services with real-time alerts, a status page, and support for dozens of notification channels. Self-hosted and Docker-friendly.
Open Source Alternative to:
Lightweight, fast, and open-source API client for developers
Stars
47,477Last commit
8 hours agoLicense
MIT
A modern, user-friendly API client that simplifies API testing and development with a clean interface and powerful features.
Open Source Alternative to:
Privacy-first survey and experience management platform
Stars
13,093Last commit
7 hours agoLicense
AGPL-3.0
Collect feedback across websites, apps, and emails with targeted surveys, user segmentation, and GDPR-compliant data handling. Self-host or use the cloud.
Open Source Alternative to:
Framework-agnostic authentication for TypeScript applications
Stars
30,276Last commit
12 hours agoLicense
MIT
A comprehensive authentication framework offering email/password, social sign-on, two-factor auth, and multi-tenant support with full TypeScript integration.
Open Source Alternative to:
GPU-accelerated terminal emulator with multiplexing across all platforms
Stars
29,210Last commit
1 day agoLicense
MIT
Cross-platform terminal emulator and multiplexer with GPU acceleration, true color support, and Lua configuration. Runs on Linux, macOS, Windows, FreeBSD, and NetBSD.
Open Source Alternative to:
Lightweight code editor with agents, Git, and terminal built in
Stars
3,106Last commit
17 hours agoLicense
Unknown
Open-source code editor for macOS, Windows, and Linux that puts coding agents, terminal, Git, and GitHub in a single window.
Open Source Alternative to:
High-throughput, memory-efficient serving engine for LLMs
Stars
93,692Last commit
7 hours agoLicense
Apache-2.0
Inference and serving engine for large language models, built for speed and hardware efficiency with an OpenAI-compatible API and support for a wide range of open models.
Open Source Alternative to:
Unified AI-powered enterprise search across company data
Stars
32,433Last commit
7 hours agoLicense
MIT
An open-source platform that connects to 40+ apps to provide intelligent search and AI assistance across all company information
Open Source Alternative to:
Self-hosted home automation without the cloud
Stars
3,236Last commit
10 hours agoLicense
Apache-2.0
Privacy-first home automation platform that runs locally on your hardware, supports Zigbee, Matter, and MQTT, and lets you automate your home without coding.
Open Source Alternative to:
AI coding agent that sees your live app and edits code
Stars
714Last commit
19 hours agoLicense
Apache-2.0
Open-source AI coding agent that runs in your browser, sees your live DOM and app state, and makes real code edits from plain English descriptions.
Open Source Alternative to:
Beautiful open-source monitoring for modern infrastructure
Stars
10,935Last commit
5 days agoLicense
AGPL-3.0
Monitor servers, websites, Docker containers, and infrastructure with real-time insights, instant alerts, and powerful analytics. Self-hosted solution.
Open Source Alternative to:
Navigate anywhere with detailed offline maps and GPS
Stars
6,074Last commit
7 hours agoLicense
Unknown
Comprehensive offline navigation app with detailed maps, turn-by-turn guidance, and specialized routing for hiking, cycling, and walking worldwide.
Open Source Alternative to:
Local control smart home automation with privacy first
Stars
91,430Last commit
7 hours agoLicense
Apache-2.0
Open source home automation platform supporting 1000+ devices with local control, powerful automations, custom dashboards, and voice assistant. No cloud required.
Open Source Alternative to:
Headless CMS for developers, built with Node.js
Stars
45,226Last commit
11 hours agoLicense
MIT
A powerful, flexible, and developer-friendly content management system that prioritizes customization and scalability.
Open Source Alternative to:
Self-hosted personal finance manager with double-entry bookkeeping
Stars
24,883Last commit
8 hours agoLicense
AGPL-3.0
Track transactions, budgets, and accounts with a double-entry system, multi-currency support, rule engine, and REST API. Fully self-hostable.
Open Source Alternative to:
Free 2D and 3D game engine for cross-platform projects
Stars
118,360Last commit
16 hours agoLicense
MIT
Build 2D, 3D, and XR games with a full-featured engine that includes its own scripting language, scene editor, and export tools for multiple platforms.
Open Source Alternative to:
Dictate faster and control your Mac with voice
Stars
649Last commit
21 days agoLicense
MIT
Free, open-source macOS voice assistant that transcribes speech, applies AI transformations, and controls apps hands-free. No subscription, no training required.
Open Source Alternative to:
Self-host your own scheduling page, no vendor required
Stars
48,975Last commit
17 days agoLicense
MIT
Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.
Open Source Alternative to:
Build full-stack apps with TypeScript and real-time sync
Stars
12,688Last commit
9 hours agoLicense
Unknown
Open-source reactive database that keeps your web and mobile apps in sync. Write everything in TypeScript with built-in auth, cron jobs, and AI integration.
Open Source Alternative to:
Visual app builder that integrates with your existing codebase
Stars
7,098Last commit
7 hours agoLicense
MIT
Open-source visual editor for building websites and web apps. Connect to any data source, design custom UIs, and ship production React code without leaving your stack.
Open Source Alternative to:
Ultra-fast data transformation for AI with lineage
Stars
11,681Last commit
17 hours agoLicense
Apache-2.0
Open-source ETL framework built in Rust for AI workloads. Features incremental processing, data lineage, and observability tools for semantic search and RAG applications.
Open Source Alternative to:
Secure collaboration with end-to-end encryption
Stars
8,005Last commit
22 hours agoLicense
AGPL-3.0
Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.
Open Source Alternative to:
Design database diagrams and generate SQL scripts instantly
Stars
39,956Last commit
22 hours agoLicense
AGPL-3.0
Free online database diagram editor with SQL generation. Create ER diagrams, visualize relationships, export scripts, and reverse engineer schemas - no signup required.
Open Source Alternative to:
General-purpose AI agent for code, workflows, and more
Stars
55,224Last commit
10 hours agoLicense
Apache-2.0
Local AI agent with a desktop app, CLI, and API that connects to 15+ LLM providers and 70+ extensions for code, research, automation, and data tasks.
Open Source Alternative to:
Open-source helpdesk for seamless customer support
Stars
4,594Last commit
9 hours agoLicense
AGPL-3.0
Self-hosted email management system with shared inboxes, automation, and powerful collaboration features for efficient customer support.
Open Source Alternative to:
Encrypted, queryable backups for engineers who value time
Stars
2,088Last commit
1 day agoLicense
ISC
Backup solution with CLI, API and UI interfaces. Clean defaults, easy deployment. Encrypted, queryable backups with deduplication and compression.
Open Source Alternative to:
AI agents that autonomously fix code and resolve GitHub issues
Stars
20,542Last commit
16 hours agoLicense
MIT
State-of-the-art AI agent that uses language models like GPT-4o to autonomously solve GitHub issues, fix bugs, and implement features with configurable YAML setup.
Open Source Alternative to:
Community-driven platform built for transparency
Stars
411Last commit
2 days agoLicense
AGPL-3.0
Open-source communication platform with multi-window chat, economy systems, and privacy-first approach. Built by communities for superior performance.
Open Source Alternative to:
Free instant whiteboard with real-time collaboration
Stars
50,885Last commit
17 hours agoLicense
Unknown
Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.
Open Source Alternative to:
Privacy-focused, lightweight web analytics
Stars
29,384Last commit
22 hours agoLicense
AGPL-3.0
Simple, open-source web analytics tool that respects user privacy and provides valuable insights without compromising data protection.
Open Source Alternative to:
Type 10x faster with AI-powered voice dictation
Stars
1,556Last commit
8 hours agoLicense
MIT
Open source AI dictation app that transforms speech to text with context-aware formatting. Fast, accurate transcription for meetings, notes, and hands-free typing.
Open Source Alternative to:
Zero-knowledge encrypted notes that sync across all devices
Stars
14,751Last commit
8 hours agoLicense
GPL-3.0
End-to-end encrypted note-taking app with zero-knowledge architecture, cross-device sync, web clipper, and a self-hostable sync server.
Open Source Alternative to:
Real-time fraud detection and AML compliance engine
Stars
616Last commit
5 days agoLicense
Elastic-2.0
An open-source platform that enables fintech companies to monitor transactions and user activity, detect suspicious behaviors, and automate fraud prevention in real-time.
Open Source Alternative to:
Stellar Hosted – Managed Open Source software hosting in the EU: secure, compliant, fast.
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