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Open Source Projects using Radix UI

A curated collection of the 192 best open source software using Radix UI. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Favicon of Steel

Steel

AI
Control browser fleets in the cloud for AI automation

  • Stars

    7,536

  • Last commit

    5 hours ago

  • License

    Apache-2.0
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.

Open Source Alternative to:

Favicon of Browserbase
Browserbase
Favicon of NHost

NHost

Serverless backend platform for modern app development

  • Stars

    9,280

  • Last commit

    6 hours ago

  • License

    MIT
Fully managed backend infrastructure with built-in authentication, database, storage, and serverless functions for rapid application development.

Open Source Alternative to:

Favicon of Supabase
Supabase
Favicon of Hatchet

Hatchet

Effortless CI/CD for modern cloud applications

  • Stars

    7,785

  • Last commit

    6 hours ago

  • License

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

Open Source Alternative to:

Favicon of Make
Make
Favicon of Vendure

Vendure

Flexible e-commerce for modern businesses

  • Stars

    8,371

  • Last commit

    7 hours ago

  • License

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

Open Source Alternative to:

Favicon of WooCommerce
WooCommerce
Favicon of OpenSign

OpenSign

Secure, customizable e-signatures for modern businesses

  • Stars

    6,902

  • Last commit

    3 days ago

  • License

    AGPL-3.0
A powerful, open-source e-signature solution offering customization, integration, and enhanced security for businesses of all sizes.

Open Source Alternative to:

Favicon of DocuSign
DocuSign
Favicon of Hexclave

Hexclave

Modular auth, payments, emails, and analytics for your product

  • Stars

    6,842

  • Last commit

    6 hours ago

  • License

    Unknown
Self-hostable platform combining user auth, payments, email, and analytics into modular building blocks that fit around your existing product.

Open Source Alternative to:

Favicon of Auth0
Auth0
Favicon of OpenWispr

OpenWispr

AI
Voice-to-text that works offline, privately, on any app

  • Stars

    5,694

  • Last commit

    1 day ago

  • License

    MIT
Dictation app powered by OpenAI Whisper and NVIDIA Parakeet. Runs locally on macOS, Windows, and Linux with zero data retention and 100+ language support.

Open Source Alternative to:

Favicon of Wispr Flow
Wispr Flow
Favicon of Plasmic

Plasmic

Visual app builder that integrates with your existing codebase

  • Stars

    6,969

  • Last commit

    5 hours ago

  • License

    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:

Favicon of Framer
Framer
Favicon of Emdash

Emdash

AI
Dashboard for running multiple coding agents in parallel

  • Stars

    5,483

  • Last commit

    12 hours ago

  • License

    Apache-2.0
Desktop app that runs 25+ coding agents simultaneously, each isolated in its own Git worktree, so you can orchestrate code changes without switching tools.

Open Source Alternative to:

Favicon of Codex
Codex
Favicon of Your Next Store (YNS)

Your Next Store (YNS)

Launch Your Store in Minutes, No Code Needed

  • Stars

    5,482

  • Last commit

    3 days ago

  • License

    MIT
Fast, modern e-commerce with instant setup and full customization. Powered by Stripe for seamless transactions.

Open Source Alternative to:

Favicon of Shopify
Shopify
Favicon of Helicone

Helicone

AI
Build reliable AI apps with comprehensive observability

  • Stars

    6,098

  • Last commit

    1 day ago

  • License

    Apache-2.0
Open-source platform for logging, monitoring, and debugging LLM applications. Route, debug, and analyze AI apps with comprehensive observability tools.

Open Source Alternative to:

Favicon of DataDog
DataDog
Favicon of Mike

Mike

AI
Open-source legal AI that law firms control and extend

  • Stars

    4,152

  • Last commit

    6 hours ago

  • License

    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:

Favicon of Harvey
Harvey
Favicon of Rivet

Rivet

Build stateful backends with in-memory actors

  • Stars

    6,081

  • Last commit

    8 hours ago

  • License

    Apache-2.0
Open-source infrastructure for long-lived, in-memory processes called Actors. Combines state and compute with sub-millisecond latency, realtime capabilities, and horizontal scaling.

Open Source Alternative to:

Favicon of Cloudflare Workers
Cloudflare Workers
Favicon of UnKey

UnKey

Secure, scalable API key management for developers

  • Stars

    5,422

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
Streamline API authentication with UnKey's powerful, developer-friendly platform for creating, revoking, and monitoring API keys.

Open Source Alternative to:

Favicon of Kong
Kong
Favicon of Standard Notes

Standard Notes

Secure, encrypted notes for your digital life

  • Stars

    6,600

  • Last commit

    6 days ago

  • License

    AGPL-3.0
Cross-platform note-taking app with end-to-end encryption, offline access, and powerful organization features for privacy-conscious users.

Open Source Alternative to:

Favicon of Obsidian
Obsidian
Favicon of useSend

useSend

Pay per email sent, not for contact storage

  • Stars

    4,635

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Open source email platform for transactional and marketing emails. Self-host or use cloud service with transparent pricing - pay only for emails sent.

Open Source Alternative to:

Favicon of Resend
Resend
Favicon of ACI.dev

ACI.dev

AI
Build reliable AI agents with unified tool integration

  • Stars

    4,884

  • Last commit

    3 months ago

  • License

    Apache-2.0
Platform for connecting AI agents to 500+ tools with built-in multi-tenant auth management and granular permissions using either function calling or a unified MCP server

Open Source Alternative to:

Favicon of Pipedream
Pipedream
Favicon of Latitude

Latitude

AI
Full observability for AI agents in production

  • Stars

    4,599

  • Last commit

    10 hours ago

  • License

    MIT
Open-source platform for monitoring AI agents: captures traces, surfaces failure patterns, alerts on issues, and helps you verify fixes with automated evals.

Open Source Alternative to:

Favicon of LangSmith
LangSmith
Favicon of Agenta

Agenta

AI
Build reliable LLM apps with integrated workflows

  • Stars

    4,525

  • Last commit

    6 hours ago

  • License

    MIT
Open-source LLMOps platform providing prompt management, evaluation, and observability tools for building robust AI applications with team collaboration.

Open Source Alternative to:

Favicon of LangSmith
LangSmith
Favicon of Rallly

Rallly

Effortless group scheduling for seamless collaboration

  • Stars

    5,222

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.

Open Source Alternative to:

Favicon of Calendly
Calendly
Favicon of Colanode

Colanode

Self-hosted team workspace with chat, docs, and databases

  • Stars

    5,024

  • Last commit

    5 months ago

  • License

    Apache-2.0
Local-first collaboration platform combining real-time chat, rich text pages, databases, and file management in a single self-hostable workspace.

Open Source Alternative to:

Favicon of Notion
Notion
Favicon of Erxes

Erxes

Open-source growth platform for customer-centric teams

  • Stars

    4,069

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
All-in-one solution for marketing, sales, and customer service. Boost engagement, streamline workflows, and drive growth.

Open Source Alternative to:

Favicon of Attio
Attio
Favicon of Tracecat

Tracecat

AI
Open source security automation platform for builders

  • Stars

    3,777

  • Last commit

    5 hours ago

  • License

    AGPL-3.0
Tracecat is a scalable, self-hostable platform for automating security workflows and playbooks without limits.

Open Source Alternative to:

Favicon of Jira
Jira
Favicon of Flipt

Flipt

Git-native feature management for developers

  • Stars

    4,878

  • Last commit

    23 hours ago

  • License

    GPL-3.0
A feature flag platform that integrates with Git workflows, enabling developers to manage features directly in their codebase.

Open Source Alternative to:

Favicon of LaunchDarkly
LaunchDarkly
Favicon of Laminar

Laminar

AI
AI-powered platform for engineering LLM products

  • Stars

    3,191

  • Last commit

    8 hours ago

  • License

    Apache-2.0
Laminar is an open-source platform that helps collect, understand, and utilize data for building high-quality LLM applications.

Open Source Alternative to:

Favicon of LangChain
LangChain
Favicon of Bknd

Bknd

Feature-rich backend that runs anywhere you need it

  • Stars

    3,751

  • Last commit

    5 months ago

  • License

    Apache-2.0
Lightweight Firebase alternative with database, auth, storage, and workflows. Framework-agnostic backend that integrates with NextJS, Remix, Hono and more.

Open Source Alternative to:

Favicon of Supabase
Supabase
Favicon of Spliit

Spliit

Effortlessly split expenses with friends and roommates

  • Stars

    2,881

  • Last commit

    5 days ago

  • License

    MIT
A user-friendly app for tracking shared expenses, settling debts, and managing group finances with ease and transparency.

Open Source Alternative to:

Favicon of Splitwise
Splitwise
Favicon of Ryot

Ryot

Track your life, your way

  • Stars

    3,561

  • Last commit

    1 day ago

  • License

    GPL-3.0
Ryot is a versatile platform for effortlessly tracking media, fitness, and more, replacing manual methods like spreadsheets.

Open Source Alternative to:

Favicon of Notion
Notion
Favicon of Open Wearables

Open Wearables

Convert wearable data into actionable health insights with open algorithms

  • Stars

    2,395

  • Last commit

    8 hours ago

  • License

    MIT
Self-hosted health intelligence platform with open algorithms, AI reasoning engine, and zero per-user fees. Connect Apple Health, Whoop, Garmin, Oura, and more.

Open Source Alternative to:

Favicon of Terra API
Terra API
Favicon of Autumn

Autumn

Stripe payments, usage tracking, and paywalls in 3 functions

  • Stars

    2,647

  • Last commit

    5 hours ago

  • License

    Apache-2.0
Simplify Stripe integration for AI startups with 3 functions, 0 webhooks. Build pricing plans in 30 minutes with usage tracking, credits, and feature controls.

Open Source Alternative to:

Favicon of Stripe Billing
Stripe Billing
Favicon of OpenLIT

OpenLIT

AI
Monitor, debug, and scale LLM applications with ease

  • Stars

    2,716

  • Last commit

    13 hours ago

  • License

    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:

Favicon of LangSmith
LangSmith
Favicon of Usertour

Usertour

Create engaging product tours and user onboarding experiences

  • Stars

    2,284

  • Last commit

    2 days ago

  • License

    AGPL-3.0
Open-source platform for building interactive product tours, tooltips, and in-app guides to improve user engagement and feature adoption without complex coding

Open Source Alternative to:

Favicon of Userflow
Userflow
Favicon of Ballerine

Ballerine

AI agents that transform merchant risk decisions at scale

  • Stars

    2,426

  • Last commit

    3 days ago

  • License

    Unknown
Reduce fraud, accelerate underwriting, and maintain compliance with AI-driven merchant risk intelligence for PSPs, banks, and fintechs.

Open Source Alternative to:

Favicon of Seon
Seon
Favicon of LearnHouse

LearnHouse

Create, sell, and manage online courses with full control

  • Stars

    2,195

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Open-source LMS for building and selling courses with a block-based editor, built-in payments, AI tools, analytics, and white-labeling. Self-host or use the cloud.

Open Source Alternative to:

Favicon of Miro
Miro
Favicon of Ray.so

Ray.so

Create beautiful images of your code

  • Stars

    2,345

  • Last commit

    8 hours ago

  • License

    MIT
Turn your code into beautiful images. Choose from a range of syntax colors, hide or show the background, and toggle between a dark and light window.
Favicon of Grida

Grida

Open canvas for designing and building web apps

  • Stars

    2,619

  • Last commit

    4 days ago

  • License

    Apache-2.0
Design and build web applications on an open canvas with AI-powered tools, Figma integration, pixel drawing, and a modular SDK built for extensibility.

Open Source Alternative to:

Favicon of Figma
Figma
Favicon of Comp AI

Comp AI

Get audit-ready for SOC 2, ISO 27001, HIPAA, and GDPR

  • Stars

    1,892

  • Last commit

    15 days ago

  • License

    AGPL-3.0
AI-driven compliance platform that automates evidence collection, policy generation, and continuous monitoring across 580+ integrations for SOC 2, ISO 27001, HIPAA, and GDPR.

Open Source Alternative to:

Favicon of Vanta
Vanta
Favicon of Notifuse

Notifuse

Self-hosted email platform with visual editor & analytics

  • Stars

    2,073

  • Last commit

    7 days ago

  • License

    AGPL-3.0
Free open-source email platform for newsletters and transactional emails. Self-hosted alternative to Mailchimp with visual MJML editor, A/B testing, and analytics.

Open Source Alternative to:

Favicon of Resend
Resend
Favicon of WR.DO

WR.DO

Free DNS management and URL shortening platform

  • Stars

    2,279

  • Last commit

    3 months ago

  • License

    MIT
WR.DO offers free domain name distribution and short URL generation, built on Cloudflare's infrastructure for reliability and speed.

Open Source Alternative to:

Favicon of TinyURL
TinyURL
Favicon of Open Mercato

Open Mercato

AI-native CRM/ERP foundation with 80% already built

  • Stars

    1,676

  • Last commit

    8 hours ago

  • License

    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:

Favicon of SAP
SAP
Favicon of c15t

c15t

Build privacy-compliant cookie banners with full control

  • Stars

    1,863

  • Last commit

    7 days ago

  • License

    Apache-2.0
Open source consent management framework for modern web apps. Framework-agnostic, fully customizable, and performance-first with no vendor lock-in.

Open Source Alternative to:

Favicon of Termly
Termly
Favicon of Languine

Languine

Automated localization for modern development teams

  • Stars

    2,030

  • Last commit

    4 months ago

  • License

    MIT
A developer-focused localization platform that automates translation workflows within your existing development pipeline and CI/CD processes.

Open Source Alternative to:

Favicon of Crowdin
Crowdin
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