Top trending open-source startups in Q1 2025

Snapshot of ROSS Index featuring top open-source startups by GitHub stars growth of their repositories. All descriptions are based on public data and were current as of the end of Q1 2025
  1. 🇨🇭 Anoma (anoma/anoma, 27.2K stars, 27.2x growth) is a distributed operating system for intent-centric, decentralized applications. Founded in 2020 in Zug, Switzerland. Raised $57.8M from Electric, Polychain, CMCC Global, etc.
  2. 🇺🇸 Browser Use (browser-use/browser-use, 24.0K stars, 24.0x growth) is a framework that enables AI agents to seamlessly interact and control web browsers. Founded in 2024 in San Francisco. Raised $17.5M from Y Combinator, Nexus, Felicis, etc.
  3. 🇺🇸 Million (aidenybai/react-scan, 14.7K stars, 14.7x growth) develops React Scan, a tool for optimizing React code by identifying performance bottlenecks. Founded in 2023 in San Francisco. Raised $0.5M from Y Combinator.
  4. 🇺🇸 elizaOS (elizaos/eliza, 14.4K stars, 14.4x growth) is a comprehensive framework for building AI agents with persistent personalities. Founded in 2024 in San Francisco.
  5. 🇺🇸 Linera (linera-io/linera-protocol, 20.5K stars, 14.3x growth) develops a blockchain protocol for highly scalable, low-latency Web3 applications. Founded in 2021 in San Francisco. Raised $12M from Andreessen Horowitz, Borderless, Tribe, etc.
  6. 🇮🇳 RagaAI (raga-ai-hub/ragaai-catalyst, 14.9K stars, 13.5x growth) offers Catalyst, a GenAI management and optimization platform. Founded in 2021 in India. Raised $4.7M from Pravega, Pi, Arka Labs, TenOneTen, Exfinity, Anorak, Mana.
  7. 🇨🇳 Cherry Studio (cherryhq/cherry-studio, 18.4K stars, 11.5x growth) is a desktop chat app that supports multiple LLM providers. Founded in 2021 in Shanghai, China.
  8. 🇺🇸 Mastra (mastra-ai/mastra, 11.5K stars, 9.7x growth) is a TypeScript Agentic Framework with built-in workflows, RAG, agents, integrations and evals. Founded in 2024 in San Francisco. Raised $0.5M from Y Combinator, SAV.
  9. 🇺🇸 Turso (tursodatabase/limbo, 9.7K stars, 9.3x growth) offers Limbo, a database engine written in Rust with a native async support. Founded in 2021 in Claymont, DE. Raised $7M from Norwest, Mango, Jamstack, First Star, Essence, Blumberg.
  10. 🇮🇳 Maxun (getmaxun/maxun, 8.8K stars, 8.8x growth) is a no-code web data extraction tool. Founded in 2023 in Mumbai, India.
  11. 🇺🇸 Browserbase (browserbase/stagehand, 7.3K stars, 7.3x growth) offers Stagehand, an AI-based browser automation tool. Founded in 2024 in San Francisco. Raised $27.4M from Kleiner Perkins, CRV, etc.
  12. 🇫🇷 Coderamp (cyclotruc/gitingest, 7.2K stars, 7.2x growth) develops Gitingest, a tool that turns any Git repository into a prompt-friendly text. Founded in 2024 in Lyon, France. Raised an undisclosed amount from Kima.
  13. 🇬🇧 Pydantic (pydantic/pydantic-ai, 6.9K stars, 6.9x growth) develops a Python agent framework designed to build production grade applications with GenAI. Founded in 2017 in London. Raised $17.2M from Irregular Expressions, Sequoia, Partech, etc.
  14. 🇺🇸 Quivr (quivrhq/megaparse, 5.8K stars, 5.8x growth) develops versatile file parser for LLM Ingestion. Founded in 2022 in New York. Raised $3.55M from Kima, Y Combinator.
  15. 🇺🇸 OpenInterface (raidendotai/cofounder, 5.8K stars, 5.8x growth) offers Cofounder, an AI-powered, browser-based platform for full-stack web development. Founded in 2024 in Wilmington, DE.
  16. 🇩🇪 Readest (readest/readest, 5.5K stars, 5.5x growth) is a cross-platform, feature-rich ebook reader. Founded in 2024 in Germany.
  17. 🇪🇹 Better Auth (better-auth/better-auth, 5.6K stars, 5.1x growth) is a framework-agnostic authentication library for TypeScript. Founded in 2024 in Addis Ababa, Ethiopia.
  18. 🇫🇷 Pathway (pathwaycom/pathway, 22.4K stars, 5.1x growth) offers a real-time data processing framework for building fast, resilient, and AI-powered data pipelines. Founded in 2020 in Paris, France. Raised $14.5M from Market One, Inovo, Id4, TQ, Kadmos.
  19. 🇺🇸 SST (toolbeam/openauth, 4.8K stars, 4.8x growth) offers OpenAuth, a universal, standards-based auth provider. Founded in 2017 in San Francisco. Raised $1.62M from Y Combinator, SV Angel, Greylock, etc.
  20. 🇺🇸 OmniAI (getomni-ai/zerox, 7.7K stars, 4.8x growth) develops Zerox, a vision-based OCR tool. Founded in 2023 in San Francisco. Raised $3.7M from Y Combinator, Eight, FundersClub, etc.

Anyone with a featuring on ROSS Index Q1 2025 can add the badge to their own website to let site visitors know they are one of the fastest-growing open-source startups.

Visit ROSS Index to see the top-20 open-source startups in other quarters.