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

  60,745

• Forks

  7,580

• Last commit

  1 week ago

PostHog

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

• Stars

  17,600

• Forks

  1,057

• Last commit

  2 days ago

Cal.com

Scheduling infrastructure for absolutely everyone.

• Stars

  29,018

• Forks

  6,642

• Last commit

  2 days ago

InboxZero

Open source email app to reach inbox zero fast.

• Stars

  1,978

• Forks

  158

• Last commit

  2 days 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

  66,829

• Forks

  6,255

• Last commit

  2 days ago

Rustdesk

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

• Stars

  64,818

• Forks

  7,067

• Last commit

  1 day ago

Ghost

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

• Stars

  45,879

• Forks

  10,007

• Last commit

  2 days ago

NetData

The open-source observability platform everyone needs!

• Stars

  68,464

• Forks

  5,735

• Last commit

  1 day ago

Rocket.Chat

The communications platform that puts data protection first.

• Stars

  39,003

• Forks

  9,979

• Last commit

  2 days ago

Discourse

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

• Stars

  40,676

• Forks

  8,162

• Last commit

  2 days 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

  49,337

• Forks

  3,228

• 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

  42,316

• Forks

  5,229

• Last commit

  2 days ago

Joplin

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

• Stars

  43,418

• Forks

  4,689

• Last commit

  4 days ago

Plausible

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

• Stars

  18,566

• Forks

  988

• Last commit

  4 days ago

N8N

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

• Stars

  41,248

• Forks

  5,180

• Last commit

  2 days ago

Flowise AI

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

• Stars

  25,288

• Forks

  13,004

• 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

  34,660

• Forks

  6,523

• Last commit

  2 days ago

TiDB

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

• Stars

  36,270

• Forks

  5,718

• Last commit

  2 days ago

AppWrite

Build like a team of hundreds_

• Stars

  41,410

• Forks

  3,748

• Last commit

  1 day ago

Hoppscotch

Open source API development ecosystem

• Stars

  60,566

• Forks

  4,198

• Last commit

  1 week ago