Home / Whiteboards & Diagrams

Choosing Whiteboards & Diagrams alternatives: 6 free/open-source options

Whiteboards, flowcharts, architecture diagrams, mind maps. Below, 6 tools cover 6 vendors; 2 have been hands-on tested by us, the rest are marked "not tested yet" — no invented verdicts.

Compare at a glance

ToolReplacesLicenseRuns onChinese UIOnline
MarkmapXMind / Miro (mind maps)MIT (commercial use OK)onlineno (English UI)online, ready to use
draw.ioMicrosoft Visio / LucidchartApache-2.0 (commercial use OK)online / desktopyesonline, ready to use
CyberChef not tested yetonline codec / data-processing toolsApache-2.0 (commercial use OK)onlineno (English UI)official online
Excalidraw not tested yetMiro / VisioMIT (commercial use OK)onlineyesofficial online
XMind not tested yetMindManagerProprietary, free with paid tiersonline / desktop / mobileyesofficial online
tldraw not tested yetMiroCustom license (confirm before commercial use)onlineno (English UI)official online

Pick by need (conclusions first)

All 6 tools

Markmap

tested

Turn Markdown into an interactive mind map without installing XMind: open source, rendered

draw.io

tested

If you want to draw flowcharts or architecture diagrams without installing software, this

CyberChef

not tested yet

Fully free and open source

Excalidraw

not tested yet

Fully free and open source; collaboration requires self-hosting or the official cloud

XMind

not tested yet

Free tier has limited features; paid subscription unlocks more

tldraw

not tested yet

Online version free; commercial use / self-hosting is subject to its license