The fastest-growing open-source startups in Q2 2021

Snapshot of ROSS Index featuring top open-source startups by Github stars growth of their repositories. All descriptions below are based on public data and were up-to-date at the end of Q2 2021.
  1. NocoDB (nocodb/nocodb, 13.3K stars, 9104% AGR). No-code database tool (alternative to Airtable). Founded in 2021 in Poole (UK) and has no known external funding.
  2. Jina AI (jina-ai/jina, 6.9K stars, 4427% AGR). Neural search ecosystem for businesses and developers. Neural search ecosystem for businesses and developers. Founded in 2020 in Berlin and raised $7.5M from GGV Capital, SAP.io, Yunqi Partners.
  3. Appsmith (appsmithorg/appsmith, 4.8K stars, 2770% AGR). Framework for the building of admin panels, CRUD apps and workflows. Founded in 2019 in Bengaluru and has no known external funding.
  4. Supabase (supabase/supabase, 14.2K stars, 1540% AGR). RESTful APIs for PostgreSQL without a single line of code (open-source alternative to Firebase). Founded in 2020 in Singapore and raised $6.1M from Coatue and Y Combinator.
  5. Tailwind Labs (tailwindlabs/headlessui, 9.7K stars, 810% AGR). The developer of popular US framework Tailwind CSS. Founded in 2017 in Cambridge (Canada) and has no known external funding.
  6. Porter (porter-dev/porter, 2.5K stars, 641% AGR). Cloud app deployment platform. Founded in 2020 in New York and raised $125K from Y Combinator.
  7. Mattermost (mattermost/focalboard, 4K stars, 572% AGR). Collaboration platform (alternative to Slack). Founded in 2015 in Palo Alto and raised $70M from S28, Y Combinator, Redpoint, Battery Ventures, etc.
  8. Airbyte (airbytehq/airbyte, 3.3K stars, 529% AGR). Data integration platform. Founded in 2020 in San Francisco and raised $31.2M from Accel, 8VC, Y Combinator, etc.
  9. CodeNotary (codenotary/immudb, 2.9K stars, 514% AGR). Software supply chain audit based on the immutable database. Founded in 2018 in Houston and raised $7M from Elaia, Bluwat, Acequia Capital.
  10. Appwrite (appwrite/appwrite, 10K stars, 511% AGR). Backend-as-a-service for web, mobile and Flutter developers. Founded in 2019 in Tel Aviv and has no known external funding.
  11. Prisma (prisma/prisma, 14.5K stars, 457% AGR). Database toolkit for TypeScript and Node.js. Founded in 2016 in Berlin raised $16.5M from Kleiner Perkins, Mango Capital, Amplify Partners, etc.
  12. Space Cloud (spacecloud-io/space-cloud, 3K stars, 393% AGR). Serverless cloud platform. Founded in 2017 in Mumbai and has no known external funding.
  13. Raycast (raycast/script-commands, 1.9K stars, 391% AGR). CLI-based developer productivity tool. Founded in 2020 in London and raised $2.7M from Accel, Y Combinator and Chapter One, etc.
  14. Uniswap (uniswap/uniswap-interface, 2.1K stars, 374% AGR). Decentralised trading Ethereum-based protocol. Founded in 2018 in New York and raised $11M from A16Z, USV, SV Angel, Version One, etc.
  15. Storj (storj/storj, 1.9K stars, 330% AGR). Decentralised cloud storage. Founded in 2014 in Atlanta and raised $35.4M from GVA, TechSquare Labs, etc.
  16. Serverless Stack (serverless-stack/serverless-stack, 2K stars, 314% AGR). The developer of SST framework for serverless apps. Founded in 2017 in San Francisco and raised unknown funding from Y Combinator, SV Angel, Greylock, etc.
  17. QuestDB (questdb/questdb, 4K stars, 264% AGR). Time-series database. Founded in 2019 in London and raised $2.3M from Episode 1, Y Combinator, Kima Ventures Seedcamp, etc.
  18. MLJAR (mljar/mljar-supervised, 1.4K stars, 245% AGR). ML pipeline platform. Founded in 2016 in Warsaw and has no known external funding.
  19. Alpha Cephei (alphacep/vosk-api, 1.9K stars, 241% AGR). The developer of Vosk, offline speech recognition API. Founded in 2015 in Moscow and has no known external funding.
  20. Budibase (budibase/budibase, 4K stars, 224% AGR). Low-code platform for the building of internal tools. Founded in 2020 in Belfast and raised $391K from Techstart Ventures.

Visit ROSS Index to see the recent top-20 open-source startups.