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161 projects, sorted by GitHub stars.

PeerTube

Alternative toVimeo

Federated video hosting you own, with no YouTube dependency

  • 15,372 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Video

CrowdSec

Alternative toCloudflare

Community-powered threat detection and IP blocklist

  • 15,226 GitHub stars
  • MITLicence MIT
  • #Security

LiveKit

Alternative toTwilio

Real-time voice and video infrastructure on open source WebRTC

  • 14,862 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

Notesnook

Alternative toEvernote

End-to-end encrypted open source note-taking, cross-platform

  • 14,803 GitHub stars
  • GPL-3.0Licence GPL-3.0

Logto

Alternative toAuth0

Multi-tenant auth platform with SSO, RBAC, and social login

  • 14,731 GitHub stars
  • MPL-2.0Licence MPL-2.0

Unleash

Alternative toLaunchDarkly

LaunchDarkly alternative with SDK for 30+ languages, self-hosted

  • 13,887 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Zettlr

Alternative toScrivener

Open source Markdown editor for researchers and academics

  • 13,794 GitHub stars
  • GPL-3.0Licence GPL-3.0

OpenCreator

Alternative toHeyGen

Local AI workspace for video, image, voice, and translation

  • 13,637 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

Element

Alternative toSlack

Secure team chat built on the Matrix open protocol

  • 13,601 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Chat

Puck

Alternative toBuilder.io

Open source drag-and-drop page editor for any React app

  • 13,500 GitHub stars
  • MITLicence MIT
  • #No Code

Trino

Alternative toStarburst Enterprise

High-performance distributed SQL query engine for big data

  • 13,351 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #Database

darktable

Alternative toAdobe Lightroom

Non-destructive RAW photo editor and darkroom workflow

  • 13,299 GitHub stars
  • GPL-3.0Licence GPL-3.0
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