10 Best GPL-2.0 Licensed Open Source Software in 2026

OBS Studio

Free, open-source software for video recording and live streaming

Stars
71,852
Forks
9,173
Last commit
6 hours ago

OBS Studio offers high-quality video recording and live streaming capabilities, supporting multiple platforms and providers.

Open Source Alternative to:

Screen Studio

Jellyfin

Your media, your server, your way

Stars
50,499
Forks
4,661
Last commit
13 hours ago

Self-hosted media server for movies, shows, music, live TV, books and photos. Stream to any device with no fees, tracking or strings attached.

Open Source Alternative to:

Netflix

Discourse

Cultivate vibrant online communities with ease

Stars
46,883
Forks
8,883
Last commit
50 minutes ago

A powerful, customizable platform for building and managing online forums, fostering engaging discussions and collaborative spaces.

Open Source Alternative to:

Skool

LosslessCut

Cut video & audio files in seconds without quality loss

Stars
39,933
Forks
1,932
Last commit
13 days ago

Fast lossless video and audio editor that trims, cuts, and merges files instantly without re-encoding. Save hours of processing time while maintaining perfect quality.

Open Source Alternative to:

CapCut

iTerm 2

Advanced terminal with modern features for Mac developers

Stars
17,439
Forks
1,363
Last commit
7 hours ago

Feature-rich terminal replacement for macOS with split panes, search, autocomplete, and extensive customization options for enhanced productivity.

Open Source Alternative to:

Warp

Piwigo

Organize thousands of photos with ease

Stars
3,776
Forks
481
Last commit
16 hours ago

Open source photo management software for organizing, sharing and managing large photo libraries. Perfect for teams, organizations and individuals.

Open Source Alternative to:

Google Photos

Checkmk

Complete IT infrastructure monitoring made simple

Stars
2,247
Forks
532
Last commit
2 hours ago

Monitor your entire IT infrastructure with 2,000+ plugins, automated discovery, and scalable architecture. Open source and enterprise solutions available.

Open Source Alternative to:

DataDog

OpenWebAnalytics

Powerful, customizable web analytics for your site

Stars
2,660
Forks
484
Last commit
2 months ago

Open-source web analytics platform offering comprehensive visitor tracking, customizable dashboards, and data ownership for websites and applications.

Open Source Alternative to:

Google Analytics

Nagios

Complete infrastructure monitoring with 25+ years of expertise

Stars
1,978
Forks
475
Last commit
8 days ago

Free open source IT monitoring solution for servers, networks, and applications. Trusted by 1M+ users worldwide with powerful alerting and enterprise-grade features.

Open Source Alternative to:

Opsgenie

Justnote

Privacy-focused note-taking made simple and fast

Stars
66
Forks
5
Last commit
3 months ago

Justnote is a secure note-taking app that lets you easily create and sync notes across devices while maintaining full control of your data.

Open Source Alternative to:

Notion

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

OBS Studio

Free, open-source software for video recording and live streaming

Stars
71,852
Forks
9,173
Last commit
6 hours ago

OBS Studio offers high-quality video recording and live streaming capabilities, supporting multiple platforms and providers.

Open Source Alternative to:

Screen Studio

Jellyfin

Your media, your server, your way

Stars
50,499
Forks
4,661
Last commit
13 hours ago

Self-hosted media server for movies, shows, music, live TV, books and photos. Stream to any device with no fees, tracking or strings attached.

Open Source Alternative to:

Netflix

Discourse

Cultivate vibrant online communities with ease

Stars
46,883
Forks
8,883
Last commit
50 minutes ago

A powerful, customizable platform for building and managing online forums, fostering engaging discussions and collaborative spaces.

Open Source Alternative to:

Skool

LosslessCut

Cut video & audio files in seconds without quality loss

Stars
39,933
Forks
1,932
Last commit
13 days ago

Fast lossless video and audio editor that trims, cuts, and merges files instantly without re-encoding. Save hours of processing time while maintaining perfect quality.

Open Source Alternative to:

CapCut

iTerm 2

Advanced terminal with modern features for Mac developers

Stars
17,439
Forks
1,363
Last commit
7 hours ago

Feature-rich terminal replacement for macOS with split panes, search, autocomplete, and extensive customization options for enhanced productivity.

Open Source Alternative to:

Warp

Piwigo

Organize thousands of photos with ease

Stars
3,776
Forks
481
Last commit
16 hours ago

Open source photo management software for organizing, sharing and managing large photo libraries. Perfect for teams, organizations and individuals.

Open Source Alternative to:

Google Photos

Checkmk

Complete IT infrastructure monitoring made simple

Stars
2,247
Forks
532
Last commit
2 hours ago

Monitor your entire IT infrastructure with 2,000+ plugins, automated discovery, and scalable architecture. Open source and enterprise solutions available.

Open Source Alternative to:

DataDog

OpenWebAnalytics

Powerful, customizable web analytics for your site

Stars
2,660
Forks
484
Last commit
2 months ago

Open-source web analytics platform offering comprehensive visitor tracking, customizable dashboards, and data ownership for websites and applications.

Open Source Alternative to:

Google Analytics

Nagios

Complete infrastructure monitoring with 25+ years of expertise

Stars
1,978
Forks
475
Last commit
8 days ago

Free open source IT monitoring solution for servers, networks, and applications. Trusted by 1M+ users worldwide with powerful alerting and enterprise-grade features.

Open Source Alternative to:

Opsgenie

Justnote

Privacy-focused note-taking made simple and fast

Stars
66
Forks
5
Last commit
3 months ago

Justnote is a secure note-taking app that lets you easily create and sync notes across devices while maintaining full control of your data.

Open Source Alternative to:

Notion

GPL-2.0 Licensed Open Source Software

A curated collection of the 10 best open source software licensed under GPL-2.0.