40+ Best Open Source Tools

Discover open source alternatives to popular software.

Send e-mail campaigns, and newsletters, from a powerful self-hosted dashboard.

Easily transcribe recorded interviews directly in your browser.

Test responsive web applications across multiple devices simultaneously.

Build scalable applications using an open-source alternative to Firebase.

Create and manage a meeting poll in seconds, no login required.

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

Open-source Design and Prototyping tool.

2,300 Free, open source pixel perfect icons.

The #1 open-source CRM & website builder.

Integrate AI copilots into your applications quickly and efficiently.

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

Download 100+ Abstract shapes with cool grainy gradient.

One Javascript framework for all your front-end needs.

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

Components, Blocks and Templates for Tailwind CSS.

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

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

The open source Quizlet alternative.

Access to the best payment infrastructure for every digital business.

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

Build and deploy web applications using pure Python without any JavaScript.

Open-source unified API to build product integrations.

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

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

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

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

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

Open-source form framework for Vue.

Create visually stunning software architecture diagrams.

Find open-source alternatives for your favorite apps.

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.

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

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

Official open source SVG icon library for Bootstrap.

Visualize computer vision.

Build an open-source notifications infrastructure for various communication channels.

Kubernetes adoption at warp speed.

Open source monitoring and production toolkit for AI apps.

An Open Source collection of Design Principles and methods.

A beautiful library with SVG logos.

Visualize and improve OpenTelemetry collector configurations.

Access and use beautifully crafted animated icons for your projects.

Create and download free and premium 3D icons for personal or commercial projects.

Search, and use thousands of open-source icons from hundreds of icon libraries.