Free and Open Source Software
Wekan
Wekan is a free and open soure, web-based, kanban tool that can be self-hosted. With Wekan you can maintain personal todo lists, keep an itinerary for you next trip with your friends or collaborate with your team on large scale projects. The Kanban experience provided by Wekan makes it super easy to get a broad overview of your project and how you and your team can move it forward.
Scrapy
Scrapy is a fast and powerful web scraping library written in Python. The framework makes it easy to crawl and extract structured data from the web services. Scrapy can be used for a wide range of purposes, ranging from data mining to service monitoring. Scrapy is maintained by Zyte and is released as free and open source software.
K-9 Mail
K-9 Mail is an open source email client focused on making it easy to chew through large volumes of email. K-9 Mail is designed for both novice and power users and offers lots of features for everyone. It provides features like Push IMAP Support, GPG & PGP/MIME support, Per Account Notifications, Unified Inbox, White and Dark Theme, and Signatures.
ZPanel
ZPanel is a free web hosting control panel for macOS, Linux and Windows-based servers. With ZPanel it's easy to manage your server for web hosting related tasks such as setting up server environments, managing DNS reccords and configuring SMTP. The software is written in PHP and released as open source software under the GNU General Public License 3.0.
KeePassXC
KeePassXC is a free and open source, cross-platform password manager. KeePassXC provides complete atabase encryption using industry standard 256-bit AES. Fully compatible with KeePass Password Safe formats. Your password database works offline and requires no internet connection. The application includes a seamless expreience with native UI for Windows, macOS, and Linux.
Master Password
Master Password is password manager based on an ingenious password generation algorithm that guarantees your passwords can never be lost. While most password managers store your passwords on a server or your local device, Master Password generates unique passwords on the fly, based on your username, the site or application and time. This approach makes Master Password safer from loss, theft, problems with backups, sync, confiscation, snooping, and more.
DbGate
DbGate is a (no)SQL database client that supports MySQL, PostgreSQL, SQL Server and MongoDB. The software is free to use for any purpose and the source code is available under the MIT license. DbGate works on macOS, Linux, Windows and in your modern web browser.