Open-source startups tagged #react

π RuView turns commodity WiFi signals into real-time spatial intelligence, vital sign monitoring, and presence detection — all without a single pixel of video.

✨ Zero-config AI chat assistant. No API key needed — sign up and instantly chat with GPT-5, Claude 4, Gemini 2.5, DeepSeek & 100+ top models. Pay-as-you-go saves you more. Available on Web, iOS, macOS, Android, Linux, Windows.

Apache Superset is a Data Visualization and Data Exploration Platform

Open-source, self-hosted note-taking tool built for quick capture. Markdown-native, lightweight, and fully yours.

🔥🔥🔥 Open-source Jira, Linear, Monday, and ClickUp alternative. Plane is a modern project management platform to manage tasks, sprints, docs, and triage.

Appwrite® - complete cloud infrastructure for your web, mobile and AI apps. Including Auth, Databases, Storage, Functions, Messaging, Hosting, Realtime and more

The open alternative to Salesforce, designed for AI.

Build AI Agents, Visually

✨ Innovative and open-source visualization application that transforms various data formats, such as JSON, YAML, XML and CSV into interactive graphs.

A one-of-a-kind resume builder that keeps your privacy in mind. Completely secure, customizable, portable, open-source and free forever. Try it out today!

Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.

The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature packed, and markdown compatible.

The open-source communication infrastructure for agents and products

:hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error tracking, logs, and more – capture all the context agents need to diagnose problems, uncover opportunities, and ship fixes. Steer it all from Slack, web, desktop, or the MCP.

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

The world's most flexible commerce platform for agents and developers

SigNoz is an open-source, OpenTelemetry-native observability platform for your team and their AI agents. Get logs, metrics, and traces in one tool with features like APM, distributed tracing, log management, infra monitoring, etc. Combined with SigNoz MCP and a native AI teammate (in SigNoz Cloud) it helps you build more resilient apps.

Scalable datastore for metrics, events, and real-time analytics

Sim is the collaborative workspace to build, deploy, and monitor AI agents and workflows. Used by 100,000+ builders.

Hey is a decentralized and permissionless social media app built with Lens Protocol 🌿

The Cursor for Designers • An Open-Source AI-First Design tool • Visually build, style, and edit your React App with AI

A modified web browser that helps in responsive web development. A web developer's must have dev-tool.

Fully autonomous AI Agents system capable of performing complex penetration testing tasks

:love_letter: An extensible desktop mail app built on the modern web. Forks welcome!

The Markdown-based note-taking app that doesn't suck.

Database diagrams editor that allows you to visualize and design your DB with a single query.

Open source Loom alternative. Beautiful, shareable screen recordings.

Local, open-source AI app builder for power users ✨ v0 / Lovable / Replit / Bolt alternative 🌟 Star if you like it!

A Git-based CMS for Static Site Generators

AI-powered development workspaces with reusable components, architectural clarity and zero overhead.

Private AI platform for agents, assistants and enterprise search. Built-in Agent Builder, Deep research, Document analysis, Multi-model support, and API connectivity for agents.

A simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui)

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

🚀🎉📚 APITable, an API-oriented low-code platform for building collaborative apps and better than all other Airtable open-source alternatives.

Local-first cross-platform desktop workspace for Claude Code / agents: multi-agent, Git worktrees, code diffs, skill marketplace, multi-model, Computer Use, task-aware desktop pets, with WeChat, Feishu, DingTalk, Telegram, WhatsApp and H5 access.

A fully open source & end-to-end encrypted note taking alternative to Evernote.

Open-source, secure environment with real-world tools for enterprise-grade agents.

TinaCMS is the leading open-source headless CMS that supports Markdown and Visual Editing. Your content is stored in your own GitHub repo 🦙 ❤️

An online IDE for rapid web development

Draw a mockup and generate html for it

Clash Nyanpasu～(∠・ω< )⌒☆​

Open Source Qualtrics Alternative

Session replay, cobrowsing and product analytics you can self-host. Best for reproducing issues and iterating on your product.

The JavaScript and API powered WordPress.com

Low-code platform allows you to build business apps, enables you to quickly create internal tools such as dashboard, crud app, admin panel, crm, cms, etc. Supports PostgreSQL, MySQL, Supabase, GraphQL, MongoDB, MSSQL, Rest API, Hugging Face, Redis, etc. Automate workflows with schedule or webhook. Open source Retool.

Rethinking Student Productivity

A commenting system powered by GitHub Discussions. :octocat: :speech_balloon: :gem:

BISHENG is an open LLM devops platform for next generation Enterprise AI applications. Powerful and comprehensive features include: GenAI workflow, RAG, Agent, Unified model management, Evaluation, SFT, Dataset Management, Enterprise-level System Management, Observability and more.

Oni: Modern Modal Editing - powered by Neovim

ValueCell is a community-driven, multi-agent platform for financial applications.

JSON Hero is an open-source, beautiful JSON explorer for the web that lets you browse, search and navigate your JSON files at speed. 🚀. Built with 💜 by the Trigger.dev team.

free online AI resume editor，the only official website is https://magicv.art

No description on the repository.

Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics

Reactide is the first dedicated IDE for React web application development.

🛍️ Typescript E-commerce Platform

Polar — A billing platform for the intelligence era

A beautiful, non-destructive, and GPU-accelerated RAW image editor built with performance in mind.

TweetDeck for GitHub - Filter Issues, Activities & Notifications - Web, Mobile & Desktop with 99% code sharing between them