Best Open Source Online Design Tools using React in 2026

Excalidraw

Collaborative whiteboard with a hand-drawn aesthetic

Stars
124,316
Forks
13,848
Last commit
6 days ago

Virtual whiteboard for sketching diagrams, flowcharts, and wireframes with a distinctive hand-drawn look. Real-time collaboration built in.

Open Source Alternative to:

Miro

Tldraw

Free instant whiteboard with real-time collaboration

Stars
47,520
Forks
3,265
Last commit
2 days ago

Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.

Open Source Alternative to:

Miro

Penpot

Open-source UI design and prototyping for product teams

Stars
48,653
Forks
3,100
Last commit
2 days ago

Design, prototype, and hand off to developers in one platform. Supports design systems, tokens, flexible layouts, and AI workflows with real CSS/HTML output.

Open Source Alternative to:

Canva

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Excalidraw

Collaborative whiteboard with a hand-drawn aesthetic

Stars
124,316
Forks
13,848
Last commit
6 days ago

Virtual whiteboard for sketching diagrams, flowcharts, and wireframes with a distinctive hand-drawn look. Real-time collaboration built in.

Open Source Alternative to:

Miro

Tldraw

Free instant whiteboard with real-time collaboration

Stars
47,520
Forks
3,265
Last commit
2 days ago

Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.

Open Source Alternative to:

Miro

Penpot

Open-source UI design and prototyping for product teams

Stars
48,653
Forks
3,100
Last commit
2 days ago

Design, prototype, and hand off to developers in one platform. Supports design systems, tokens, flexible layouts, and AI workflows with real CSS/HTML output.

Open Source Alternative to:

Canva

Open Source Online Design Tools using React

A curated collection of the best open source web-based tools for creating graphics and designs. using React.

Excalidraw

Tldraw

Penpot

Excalidraw

Tldraw

Penpot