Free Software for macOS
Telegram
With Telegram people can communicate and via instant messaging and voice over IP. Telegram is a cloud-based software and services that have a focus on privacy, speed and security. The client was initially created by the brothers Nikolai and Pavel Durov, the creators of the Russian social network VK back in 2013. Today the application is used cross-platform by over 400 million users world-wide.
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.
Postico
Postico is a free, modern PostgreSQL client for macOS. The client makes PostgreSQL more approachable by providing an easy to use interface that is liked by beginners and specialists alike. With Postico you can leverage the power of Postgres databases without using the CLI.
Simplenote
Simplenote is a cloud-based note-taking application with markdown support. Simplenote works cross-platform and all notes are synced can be accessed from any device that has the application installed, Simplenote also work in most modern browsers.
GitKraken
Unleash the power of Git with GitKraken, the free Git GUI for Windows, Mac & Linux. With GitKraken you can easily work with repositories hosted on any of these sites. Clone, add remotes, and create/open pull requests without ever leaving the application. GitKraken is an open-source project released as two versions, GitKraken Free and GitKraken Pro. The free version works with major platforms like GitHub, GitLab, Bitbucket while providing extra features in the pro version to work with GitHub Enterprise, GitLab Self-Managed, Bitbucket Server, and Azure DevOps (VSTS).
SeaMonkey
The SeaMonkey project is a community effort to develop the SeaMonkey Internet Application Suite and the SeaMonkey web browser. The SeaMoney suite includes a web-browser, advanced e-mail, newsgroup and feed client, IRC chat, and HTML editing made simple.
pyLoad
pyLoad is a free and open-source lightweight download manager written in Python. pyLoad was designed and developed to run on NAS, next-gen routers and headless home servers or whatever device that is able to connect to internet and supporting the Python programming language. pyLoad is extremely lightweight, easily extensible and fully manageable via the web.
GNUnet
Help build the internet of tomorrow with GNUnet. It's a software framework for fully decentralized, peer-to-peer networking that offers link encryption, peer discovery, resource allocation, and secure communication. The goal of the project is to replace the old insecure Internet protocol stack. GNUnet includes a fully decentralized DNS (Domain Name System) that utilize a directed graph instead of the hierarchical system implemented today. It also has it's own identity system re:claimID, a decentralized Identity Platform that is baked into GNUnet.
Beekeeper Studio
Beekeeper Studio is a well-designed and easy to use SQL client for MySQL, PostgreSQL, SQLite, SQL Server, and a variety of other relational database management systems. The software allows you to connect to databases normally or encrypted with SSL, or tunnel through SSH to ensure maximum security while still providing choices. With Beekeeper Studio, you can manage multiple tabs and multitask across operations, while providing auto-complete suggestions for tables and queries. Commonly used queries can be saved and orginized into workspaces, that can be used across connections and projects. Beekeeper Studio is both free and open source and released under the MIT License.