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578 projects, sorted by GitHub stars.

microduck_rl

Alternative toNVIDIA Isaac Sim

Sim-to-real RL environments for a 25 cm bipedal robot

  • 2,471 GitHub stars
  • Apache-2.0Licence Apache-2.0

Metarank

Alternative toAlgolia

Open source personalization and search ranking engine

  • 2,454 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLMOps

Freehire

Alternative toSimplify.jobs

Open source job search with 3.3M+ postings direct from company boards.

  • 2,397 GitHub stars
  • MITLicence MIT

Keila

Alternative toMailchimp

Send newsletters and track analytics from your own email server

  • 2,239 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Email

OpenFlux

Alternative toAstrill VPN

TCP tunneling via Yandex Docs or WebRTC transports

  • 2,227 GitHub stars
  • GPL-3.0Licence GPL-3.0

Sentry

Alternative toRollbar

Real-time error tracking with performance monitoring and traces

  • 2,216 GitHub stars
  • MITLicence MIT
  • #Monitoring

SpacebarChat

Alternative toDiscord

Free open source Discord reimplementation with full API parity

  • 2,210 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Chat

Azimutt

Alternative toSqlDBM

Explore and document complex database schemas visually

  • 2,191 GitHub stars
  • MITLicence MIT
  • #Database

21st.dev

Alternative toTailwind UI

Browse and install production-ready shadcn/ui components via CLI

  • 2,188 GitHub stars
  • MITLicence MIT

Fusio

Alternative toApigee

Build, document, and monetize APIs from one self-hosted platform

  • 2,127 GitHub stars
  • Apache-2.0Licence Apache-2.0

Vela

Alternative toGoogle Maps

OpenStreetMap and Google data, no account, no Play Services

  • 2,108 GitHub stars
  • GPL-3.0Licence GPL-3.0

Kanri

Alternative toTrello

Local-first Kanban board that stores all data in a JSON file

  • 2,068 GitHub stars
  • GPL-3.0Licence GPL-3.0
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