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.
Serverless team chat over Tor, no phone number needed
Stars
2,662Last commit
14 days agoLicense
GPL-3.0
Quiet is a peer-to-peer messaging app that syncs messages directly between devices over Tor, with no central server, no phone number required, and no metadata leaks.
Open Source Alternative to:
Python, SQL, and AI in a collaborative data notebook
Stars
3,033Last commit
2 days agoLicense
Apache-2.0
Deepnote is an open-source collaborative notebook for data analysts and scientists, combining Python, SQL, AI assistance, and live sharing in one cloud platform.
Open Source Alternative to:
A spreadsheet engine you can embed, self-host, or run in the browser
Stars
4,275Last commit
12 hours agoLicense
Apache-2.0
IronCalc is an open-source, Rust-powered spreadsheet engine with .xlsx support, 300+ functions, and bindings for JavaScript and Python.
Open Source Alternative to:
System-wide ad-blocking and privacy protection, no extensions needed
Stars
4,375Last commit
4 hours agoLicense
MIT
Free, open-source desktop app that blocks ads, trackers, and surveillance scripts across all browsers and apps on Windows, macOS, and Linux.
Open Source Alternative to:
Lightweight self-hosted bookkeeping with AI receipt scanning
Stars
Stars growing over the last 30 days6,080Last commit
6 hours agoLicense
MIT
A privacy-first personal finance app with two-level accounts, multi-currency support, AI receipt recognition, and broad data import from formats like GnuCash and Firefly III.
Open Source Alternative to:
Open source cloud infrastructure trusted at massive scale
Stars
6,082Last commit
5 hours agoLicense
Apache-2.0
OpenStack manages compute, storage, and networking across VMs, bare metal, and containers via APIs or a dashboard. Trusted by Walmart, China Mobile, and more.
Open Source Alternative to:
Transcribe meetings and voice notes with local AI, no bots required
Stars
Stars growing quickly over the last 30 days134Last commit
21 days agoLicense
MIT
Free, open-source AI note-taker that transcribes meetings and voice notes locally using Whisper and Parakeet. Works on Mac, Windows, and mobile without invasive bots.
Open Source Alternative to:
Unified observability database for metrics, logs, and traces
Stars
6,813Last commit
4 hours agoLicense
Apache-2.0
Cloud-native observability database unifying metrics, logs, and traces with sub-second queries, 50x cost reduction, and seamless OpenTelemetry integration.
Open Source Alternative to:
Simple yet powerful CI/CD engine with great extensibility
Stars
8,199Last commit
6 hours agoLicense
Apache-2.0
Open-source CI/CD platform using Docker containers for pipeline execution. Create multiple workflows, extend with plugins, and enjoy free lifetime access.
Open Source Alternative to:
AI-powered root cause analysis for on-call alerts, self-hosted and air-gapped
Stars
42Last commit
2 months agoLicense
Apache-2.0
Receive alerts from Grafana, Datadog, and Prometheus with AI-generated root cause analysis. Self-hosted on Kubernetes, fully air-gapped capable, Apache 2.0 licensed.
Open Source Alternative to:
Create 2D and 3D games without coding, powered by AI assistance
Stars
Stars growing over the last 30 days28,909Last commit
1 day agoLicense
Unknown
Free, open-source game engine with visual event system, AI tutor, and one-click publishing to Steam, iOS, Android, and web platforms.
Open Source Alternative to:
Enterprise workplace AI with data you own and control
Stars
Stars growing over the last 30 days4,122Last commit
3 hours agoLicense
Apache-2.0
Self-hostable enterprise AI platform that unifies business data across apps, powers a knowledge graph for cited answers, and lets teams build AI agents across their stack.
Open Source Alternative to:
Self-hosted personal finance manager with double-entry bookkeeping
Stars
25,257Last commit
1 day 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:
Self-hosted uptime monitoring that runs on your hardware, not their servers
Stars
87Last commit
18 days agoLicense
MIT
Deploy your own uptime and performance monitoring with HTTP/ICMP checks, multi-region probes, and custom status pages. MIT licensed, runs on minimal hardware.
Open Source Alternative to:
Text-based diagramming that renders in code and docs
Stars
91,110Last commit
8 hours agoLicense
MIT
Create flowcharts, sequence diagrams, Gantt charts, and more using a simple Markdown-like syntax that renders anywhere.
Open Source Alternative to:
Project management for teams mixing humans and AI agents
Stars
Stars growing over the last 30 days56,200Last commit
3 hours agoLicense
Unknown
Open-source platform that manages coding agents as team members, with task queues, skill libraries, runtime monitoring, and a unified activity feed.
Open Source Alternative to:
Open-source legal AI that law firms control and extend
Stars
Stars growing over the last 30 days4,491Last commit
1 day agoLicense
AGPL-3.0
Self-hostable alternative to Harvey and Legora with document analysis, contract drafting, tabular review, and reusable workflows. Zero licensing costs, full data control.
Open Source Alternative to:
Browser and notebook combined with local-first AI
Stars
3,644Last commit
3 months agoLicense
Apache-2.0
A browser that doubles as a personal notebook, letting you research, summarize, and take notes on web pages, PDFs, and videos without switching apps.
Open Source Alternative to:
Organize terminal sessions with built-in layouts, tabs, and panes
Stars
36,079Last commit
2 days agoLicense
MIT
A terminal multiplexer that organizes your workflow with intuitive layouts, tabs, and panes. Includes batteries for seamless terminal workspace management.
Open Source Alternative to:
Self-hosted encrypted backups with 70+ cloud storage options
Stars
Stars growing over the last 30 days885Last commit
5 days agoLicense
Apache-2.0
Free, open-source backup solution with end-to-end encryption. Self-hosted control, supports 70+ cloud providers, automated incremental backups, and zero vendor lock-in.
Open Source Alternative to:
AI-native CRM/ERP foundation with 80% already built
Stars
Stars growing over the last 30 days1,934Last commit
3 hours agoLicense
MIT
A modular CRM/ERP framework built on Next.js and TypeScript that encodes hundreds of architectural decisions so dev teams can ship production features in days, not months.
Open Source Alternative to:
GPU-accelerated terminal emulator with multiplexing across all platforms
Stars
29,564Last commit
2 days 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:
TypeScript framework for building autonomous AI agents
Stars
689Last commit
6 hours agoLicense
Apache-2.0
Open-source TypeScript runtime for autonomous AI agents with cognitive memory, multi-agent orchestration, runtime tool generation, and support for 21 LLM providers.
A modern terminal built around AI coding agents
Stars
66,021Last commit
4 hours agoLicense
AGPL-3.0
Terminal built for running AI coding agents like Claude Code, Codex, and Gemini CLI, with shared context, interactive code review, and multi-session management.
Open Source Alternative to:
Lightweight, accessible product tours built for React developers
Stars
72Last commit
1 month agoLicense
MIT
Headless React tour library with WCAG 2.1 AA accessibility, TypeScript support, and pre-styled components. Under 8KB gzipped with full customization control.
Open Source Alternative to:
Professional audio editing made simple and free
Stars
19,076Last commit
2 days agoLicense
Unknown
Free, open-source audio editor and recorder for all platforms. Record, edit, mix and enhance audio with professional tools. Perfect for music, podcasts, and more.
Open Source Alternative to:
Self-hosted SEO platform for keyword, backlink, and rank tracking
Stars
Stars growing quickly over the last 30 days27,801Last commit
3 days agoLicense
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:
Visual website builder and CMS you can self-host
Stars
Stars growing over the last 30 days340Last commit
2 days agoLicense
MIT
Build, manage, and host custom websites with a visual drag-and-drop builder and CMS. Self-host free or use managed cloud hosting.
Open Source Alternative to:
Privacy-first analytics you own completely
Stars
106Last commit
2 days agoLicense
MIT
Self-hosted or managed web analytics with zero external dependencies. Cookie-free tracking, full data sovereignty, and single binary deployment for organizations that own their data.
Open Source Alternative to:
Ultra-fast AI gateway with enterprise-grade reliability
Stars
Stars growing over the last 30 days9,574Last commit
4 hours agoLicense
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:
Track coding time across 70+ editors, completely free
Stars
220Last commit
4 hours agoLicense
MIT
Free, open-source coding time tracker compatible with VS Code, JetBrains IDEs, vim, emacs and more. No limits, no paywalls - your data stays yours forever.
Open Source Alternative to:
Open source headless commerce with REST API, no platform fees, built for B2B and marketplaces
Stars
15,840Last commit
4 hours agoLicense
BSD-3-Clause
Headless eCommerce platform with REST API, TypeScript SDK, and Next.js storefront. Handle B2B, multi-vendor marketplaces, and cross-border commerce. Self-hosted, open source, zero fees.
Open Source Alternative to:
Cross-platform terminal with AI built in
Stars
22,703Last commit
1 day agoLicense
Apache-2.0
Enhance your terminal with AI, file previews, and web browsing. Available on MacOS, Linux, and Windows.
Open Source Alternative to:
Build complex automations without code, deploy anywhere with full control
Stars
56Last commit
1 month agoLicense
MIT
Open-source no-code automation platform for logistics, chatbots, and AI agents. Deploy on cloud, self-host, or hybrid with complete data sovereignty and modular workflow design.
Open Source Alternative to:
Self-hosted Git forge that's lightweight and secure
Stars
Stars growing over the last 30 days5,834Last commit
12 hours agoLicense
Unknown
Self-hosted software forge offering GitHub-like features with minimal resources. Easy installation, low maintenance, and 100% free software for secure project management.
Open Source Alternative to:
Invisible bot protection that respects user privacy
Stars
37Last commit
4 days agoLicense
MPL-2.0
Privacy-compliant CAPTCHA alternative using proof-of-work technology. Protects websites from bots and spam without user interaction or data tracking.
Open Source Alternative to:
Automatically discover hidden subscriptions from your inbox
Stars
11Last commit
5 days agoLicense
AGPL-3.0
Free subscription tracker that automatically scans your email to find recurring charges. Privacy-focused discovery with complete spending overview and management tools.
Open Source Alternative to:
Event ticketing with no per-ticket platform fees
Stars
37Last commit
6 hours agoLicense
AGPL-3.0
Sell tickets for £50/year with payments, QR check-in, refunds, reporting, and a hosted booking site. Self-hostable under AGPL-3.0.
Open Source Alternative to:
Monitor, debug, and scale LLM applications with ease
Stars
Stars growing over the last 30 days3,078Last commit
6 hours agoLicense
Apache-2.0
Open-source observability platform for GenAI and LLM applications. Real-time monitoring, distributed tracing, prompt management, and AI model evaluation built on OpenTelemetry.
Open Source Alternative to:
Private messaging with end-to-end encryption
Stars
29,645Last commit
2 days agoLicense
AGPL-3.0
Secure messaging app with state-of-the-art encryption, voice/video calls, group chats, and file sharing. No ads, trackers, or data collection.
Open Source Alternative to:
Own your SES email analytics, from send to inbox
Stars
945Last commit
6 hours agoLicense
Unknown
Track SES deliveries, bounces, opens and clicks in a self-hosted dashboard with real-time search, analytics and reputation monitoring.
Open Source Alternative to:
Local meeting recorder that keeps your audio off the cloud
Stars
Stars growing over the last 30 days1,605Last commit
3 days agoLicense
MIT
Records meetings and voice memos locally using whisper.cpp, writes structured markdown to disk, and exposes 31 MCP tools so any AI agent can query your conversation history.
Open Source Alternative to:
Postiz – The All-in-One agentic social media scheduling tool
Highseat
Stellar Hosted
CodeRabbit