CyberChef

Miscellaneous

Perform all manner of operations within a web browser such as AES, DES and Blowfish encryption and decrypti…

SeaweedFS

File Transfer - Object Storage & File Servers·Go

SeaweedFS is an open source distributed file system supporting WebDAV, S3 API, FUSE mount, HDFS, etc, optim…

Netron

Analytics·Python

Visualizer for neural network and machine learning models.

Mindustry

Games·Java

Factorio-like tower defense game.

Plausible Analytics

Analytics·Elixir

Simple, lightweight (< 1 KB) and privacy-friendly web analytics.

Zulip

Communication - Custom Communication Systems·Python

Zulip is a powerful, open source group chat application.

Calibre

Document Management - E-books·Python

E-book library manager that can view, convert, and catalog e-books in most of the major e-book formats and…

Krayin

Customer Relationship Management (CRM)·PHP

CRM solution for SMEs and Enterprises for complete customer lifecycle management.

Tasmota

Internet of Things (IoT)·C

Open source firmware for ESP devices.

Matomo

Analytics·PHP

Web analytics that protects your data and your customers' privacy (alternative to Google Analytics).

Kodi

Media Streaming - Multimedia Streaming·C++

Multimedia/Entertainment center, formerly known as XBMC.

ActivityWatch

Time Tracking·Python

Automatically track how you spend time on your devices.

Wagtail

Content Management Systems (CMS)·Python

Django content management system focused on flexibility and user experience.

SimpleX Chat

Communication - Custom Communication Systems·Haskell

The most private and secure chat and applications platform - now with double ratchet E2E encryption.

Lila

Games·Scala

Ad-less chess server powering lichess.org, with official iOS and Android client apps.

Leon

Automation·JavaScript

Personal assistant who can live on your server.

koel

Media Streaming - Audio Streaming·PHP

Personal music streaming server that works.

Calibre Web

Document Management - E-books·Python

Browse, read and download eBooks using an existing Calibre database.

Beets

Media Streaming - Audio Streaming·Python

Music library manager and MusicBrainz tagger (command-line and Web interface).

Flarum

Communication - Social Networks and Forums·PHP

Delightfully simple forums.

transfer.sh

File Transfer - Single-click & Drag-n-drop Upload·Go

Easy file sharing from the command line.

Mail-in-a-Box

Communication - Email - Complete Solutions

Turns any Ubuntu server into a fully functional mail server with one command.

QloApps

Booking and Scheduling·PHP

Customizable and intuitive web-based hotel reservation system and a booking engine.

Transmission

File Transfer - Peer-to-peer Filesharing·C++

Fast, easy, free Bittorrent client.