Awesome

Opinionated List of Open Source Tools

There is a big difference between a free service and open source. For example GSuite is free for personal usage. But the software is not open source at all.

Most people don't care, but I do.

If possible I prefer open source solutions.

SaaS

• A tiny little drawing app tldraw.com
• Make images smaller using best-in-class codecs, right in the browser: squoosh.app
• Virtual whiteboard for sketching hand-drawn like diagrams excalidraw
• http API Client (Web GUI): Hoppscotch
• LimeSurvey
• VTracer Convert PNG to SVG.
• mermaid (text based diagramming and charting tool) LiveEditor
• scrumlr.io Webapp for collaborative online retrospectives

Native Apps

• Offline Maps and Navigation Osmand