LibreCAD

Excalidraw

An open-source hand-drawn-style virtual whiteboard for quick, good-looking flowcharts and sketches.

OpenCut

An open-source web-based video editor, an open alternative to CapCut.

OBS Studio

Free and open-source screen recording and live-streaming software, the de facto standard for streaming and teaching recordings.

Penpot

The first open-source design and prototyping collaboration platform, for designers and developers, an alternative to Figma.

tldraw

开源的无限画布白板与 SDK，可嵌入自己的应用。

FreeCAD

开源的参数化三维 CAD 建模软件，适合机械设计与产品设计。