41 Best Open Source Tools

100% Free•1.1K Upvotes

Open-source Design and Prototyping tool.

300+ Stars•Advanced Filtering

Discover open source alternatives to popular software.

2,300 Free, open source pixel perfect icons.

Open-source pricing & billing.

The largest HTML-based component fine tunning library.

Visualize computer vision.

Your interchain gateway.

Polyglot observability for logs, metrics and traces

Components, Blocks and Templates for Tailwind CSS.

One Javascript framework for all your front-end needs.

A beautiful library with SVG logos.

Open-source form framework for Vue.

Kubernetes adoption at warp speed.

An open-source icons library with 1500+ icons and growing.

The open source Quizlet alternative.

The #1 open-source CRM & website builder.

Open-source testing framework for LLMs & ML models.

Open source monitoring and production toolkit for AI apps.

Open-source unified API to build product integrations.

Visualize and improve OpenTelemetry collector configurations.

Free and Open source tool to streamline document filling and signing.

An Open Source collection of Design Principles and methods.

Vuetify is a no design skills required Open Source UI Library with beautifully handcrafted Vue Components.

An open source component library optimized for fast development, easy maintenance, and accessibility.

Replace Font Awesome with modern line icons with a single line of code.

A collection of 275+ open-source icons devoted to match your exquisite designs.

All popular icon sets, one framework. Over 150,000 open source vector icons.

A free icon set designed for systems and products. Use how you want, without attribution.

Beautifully crafted open source icons for use in web, iOS, Android, and desktop apps.

A flexible icon family for interfaces, diagrams, presentations — whatever, really.

A pack of more than 480 beautifully crafted Open Source icons for common actions and items.

Ready to use free and open source SVG icons pack JavaScript library.

Official open source SVG icon library for Bootstrap.

Self-host open source fonts in neatly bundled NPM packages.

Open-source fonts in a noise-free environment, to highlight their beauty, extend functionality and encourage further exploration.

Personal selection of beautiful, classy, punk, professional, incomplete, weird typefaces.

A tiny JavaScript React library that generates custom, SVG-based, round avatars from any username and color palette.

Generate seamless, unique, royalty-free patterns to use for free in any project.

Customizable SVG patterns for your projects.

Bootstrap admin dashboard template & UI components library.

Find open-source alternatives for your favorite apps.