Discover Open Source Alternatives to Popular Software

Strapi

The next-gen headless CMS, open-source, javascript, enabling content-rich experiences to be created, managed and exposed to any digital device.

• Stars

  60,481

• Forks

  7,552

• Last commit

  2 days ago

PostHog

PostHog provides open-source product analytics, session recording, feature flagging and A/B testing that you can self-host.

• Stars

  17,461

• Forks

  1,039

• Last commit

  17 hours ago

Cal.com

Scheduling infrastructure for absolutely everyone.

• Stars

  28,897

• Forks

  6,597

• Last commit

  20 hours ago

InboxZero

Open source email app to reach inbox zero fast.

• Stars

  1,932

• Forks

  153

• Last commit

  18 hours ago

Supabase

An open source Firebase alternative. Start your project with a Postgres database, Authentication, instant APIs, Edge Functions, Realtime subscriptions, Storage, and Vector embeddings.

• Stars

  66,528

• Forks

  6,228

• Last commit

  22 hours ago

Rustdesk

An open-source remote desktop, and alternative to TeamViewer.

• Stars

  64,066

• Forks

  6,985

• Last commit

  1 day ago

Ghost

Independent technology for modern publishing, memberships, subscriptions and newsletters.

• Stars

  45,821

• Forks

  9,980

• Last commit

  1 day ago

NetData

The open-source observability platform everyone needs!

• Stars

  68,347

• Forks

  5,725

• Last commit

  16 hours ago

Rocket.Chat

The communications platform that puts data protection first.

• Stars

  38,955

• Forks

  9,944

• Last commit

  20 hours ago

Discourse

A platform for community discussion. Free, open, simple.

• Stars

  40,609

• Forks

  8,147

• Last commit

  20 hours ago

AppFlowy

AppFlowy is an open-source alternative to Notion. You are in charge of your data and customizations. Built with Flutter and Rust.

• Stars

  49,106

• Forks

  3,206

• Last commit

  2 days ago

Gitea

Git with a cup of tea! Painless self-hosted all-in-one software development service, including Git hosting, code review, team collaboration, package registry and CI/CD

• Stars

  42,170

• Forks

  5,214

• Last commit

  1 day ago

Joplin

Joplin - the secure note taking and to-do app with synchronisation capabilities for Windows, macOS, Linux, Android and iOS.

• Stars

  43,235

• Forks

  4,664

• Last commit

  1 day ago

Plausible

Simple, open source, lightweight (< 1 KB) and privacy-friendly web analytics alternative to Google Analytics.

• Stars

  18,497

• Forks

  977

• Last commit

  1 day ago

N8N

Free and source-available fair-code licensed workflow automation tool. Easily automate tasks across different services.

• Stars

  41,042

• Forks

  5,121

• Last commit

  2 days ago

ClickHouse

A fast open-source column-oriented database management system that allows generating analytical data reports in real-time using SQL queries.

• Stars

  34,388

• Forks

  6,499

• Last commit

  16 hours ago

Flowise AI

Build LLM Apps Easily. Open source low-code tool for developers to build customized LLM orchestration flow & AI agents.

• Stars

  24,916

• Forks

  12,798

• Last commit

  1 day ago

TiDB

TiDB is an open-source, cloud-native, distributed, MySQL-Compatible database for elastic scale and real-time analytics.

• Stars

  36,212

• Forks

  5,717

• Last commit

  1 day ago

AppWrite

Build like a team of hundreds_

• Stars

  41,260

• Forks

  3,737

• Last commit

  2 days ago

Hoppscotch

Open source API development ecosystem

• Stars

  60,435

• Forks

  4,185

• Last commit

  1 week ago