Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown

Open source API development ecosystem - https://hoppscotch.io (open-source alternative to Postman, Insomnia)

A terminal built on web technologies

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

Backstage is an open framework for building developer portals

A private messenger for Windows, macOS, and Linux.

Tuta is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.

Bitpay Wallet (formerly Copay) is a secure Bitcoin and other crypto currencies wallet platform for both desktop and mobile devices.

BitGo JavaScript SDK

GamerholicCoin