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

  60,386

• Forks

  7,548

• Last commit

  5 days ago

PostHog

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

• Stars

  17,383

• Forks

  1,033

• Last commit

  1 day ago

Cal.com

Scheduling infrastructure for absolutely everyone.

• Stars

  28,860

• Forks

  6,587

• Last commit

  19 hours ago

InboxZero

Open source email app to reach inbox zero fast.

• Stars

  1,924

• Forks

  152

• Last commit

  20 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

  66,442

• Forks

  6,215

• Last commit

  22 hours ago

Rustdesk

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

• Stars

  63,549

• Forks

  6,955

• Last commit

  1 day ago

Ghost

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

• Stars

  45,800

• Forks

  9,973

• Last commit

  1 day ago

NetData

The open-source observability platform everyone needs!

• Stars

  68,316

• Forks

  5,727

• Last commit

  18 hours ago

Rocket.Chat

The communications platform that puts data protection first.

• Stars

  38,937

• Forks

  9,924

• Last commit

  1 day ago

Discourse

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

• Stars

  40,589

• Forks

  8,142

• Last commit

  18 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

  49,074

• Forks

  3,204

• Last commit

  1 day 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

  42,139

• Forks

  5,209

• 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

  43,122

• Forks

  4,657

• Last commit

  21 hours ago

Plausible

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

• Stars

  18,474

• Forks

  974

• Last commit

  1 day ago

N8N

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

• Stars

  41,013

• Forks

  5,108

• Last commit

  1 day ago

ClickHouse

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

• Stars

  34,325

• Forks

  6,487

• Last commit

  21 hours ago

TiDB

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

• Stars

  36,193

• Forks

  5,716

• Last commit

  22 hours ago

Flowise AI

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

• Stars

  24,640

• Forks

  12,733

• Last commit

  1 day ago

AppWrite

Build like a team of hundreds_

• Stars

  41,239

• Forks

  3,737

• Last commit

  1 day ago

Hoppscotch

Open source API development ecosystem

• Stars

  60,391

• Forks

  4,184

• Last commit

  1 week ago