BEST OPEN SOURCE SOFTWARE TOOLS

Visualizer for neural network and machine learning models

Open-source e-commerce solution popular in Europe

Developer-first headless CMS and application framework

Build, connect, and engage with your own social network.

Newsletter and email marketing with advanced management of subscribers, bounces, and plugins

Popular e-commerce module for Drupal CMS, with support for dozens of payment, shipping, and shopping related modules

Headless CMS, based on MongoDB, CQRS and Event Sourcing.

Powerful CMS that allows you to create professional websites and scalable web applications

Online marketplace for local food. It enables a network of independent online food stores that connect farmers and food hubs with individuals and local businesses

Federated microblogging server, Mastodon, GNU social, & ActivityPub compatible

Comment smarter, not harder.

Modular IRC server written in C++ for Linux, BSD, Windows, and macOS.

Fast, highly extensible, and event driven SMTP server

Lightweight CalDAV and CardDAV server based on sabre/dav

Allows your customers to book appointments with you via the web

Listen for pings and sends alerts when pings are late

Turnkey repository application providing durable access to digital resources

Document management system focused on scanned documents (electronic archives). Features file browsing in similar way to dropbox/google drive. OCR, full text search, text overlay/selection.

Easy to use CMS with powerful MVC framework underlying

Neos or TYPO3 Neos (for version 1) is a modern, open source CMS

Manage motions and amendments for (political) conventions

MyBB is free and extensible forum software for building online communities

Web interface for multi-platform voice switch called FreeSWITCH

Simple, modern, lightweight & fast web-based email client (fork of RainLoop)