Find the best open-source alternatives to popular software.

Crater offers AI-driven invoicing workflows, payments, and working capital tools to enhance your platform with minimal technical effort.

Secure, customizable platform for sharing documents and tracking engagement. Perfect for sales teams, marketers, and businesses.

Powerful, developer-friendly experimentation tool for data-driven product decisions. Seamless integration, real-time insights, and flexible deployment.

A headless, API-first e-commerce framework built on Node.js with TypeScript, offering customization and scalability for online stores.

Track issues, ideas, and projects with a modern kanban board that's fast and straightforward. Free for 1000 cards, then $20/month for unlimited use.

A powerful, scalable platform for building custom websites and apps with serverless architecture, offering flexibility and cost-efficiency.

A simple, privacy-first analytics platform that provides valuable website insights without compromising visitor data or requiring cookie consent banners.

Coroot simplifies system monitoring by providing metrics, logs, traces, and profiling with zero instrumentation, leveraging eBPF technology.

Tuta offers encrypted email, calendar and contacts with quantum-resistant security, protecting your privacy without ads or tracking.

Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.

Durable orchestration platform for managing AI agents, scheduling background tasks, and running mission-critical workflows.

Native .fig file support, built-in AI with 90 tools, headless CLI, Vue SDK for custom editors, real-time P2P collaboration. MIT licensed, works offline.

Lightweight open-source CAPTCHA solution using SHA-256 proof-of-work. 250x smaller than hCaptcha, fully customizable, and privacy-focused with zero telemetry.

Open-source browser API designed for AI agents. Run headless browsers with built-in CAPTCHA solving, proxy support, and session management. Quick setup in under 1s.

All-in-one solution for uptime monitoring, incident management, and status pages to keep your services running smoothly

Open-source observability platform for LLMs using OpenTelemetry. Monitor performance, track costs, and debug AI applications with just 2 lines of code.

Wealthfolio is a simple, secure desktop app for tracking investments and managing your wealth without compromising data privacy.

Create professional diagrams online or offline with security-first approach. No registration needed. Works with Google Drive, SharePoint, Atlassian, and more.

Self-hosted project management platform with visual task management, data privacy, and complete control over customization - built by developers for developers.

Complete integrations platform with 500+ pre-built APIs, code-first approach, unified data models, and enterprise-grade security. Free tier available.

Non-intrusive, lightweight AI coding assistant that integrates seamlessly with your terminal workflow. Get intelligent code suggestions without leaving your command line.

Decentralized photo sharing platform with chronological feeds, privacy controls, and ActivityPub federation. No ads, no algorithms, just authentic connections.

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

Build web apps, internal tools, and customer portals fast with visual editing, drag-and-drop design, and seamless codebase integration. Deploy anywhere without limits.

Create data-driven websites and reports using SQL and Markdown, with automatic visualizations and interactive elements.

A low-code platform for creating robust backends, complete with a spreadsheet UI for easy data management and custom functions.

Stack Auth provides secure authentication, authorization, and user management for developers in just 5 minutes.

A powerful, open-source e-signature solution offering customization, integration, and enhanced security for businesses of all sizes.

A powerful browser extension and desktop app for developers to manipulate network requests, debug APIs, and improve web app testing

A serverless link shortener that runs entirely on Cloudflare, offering URL compression, analytics, and customizable slugs.