Can I open-source Whimsical?
YES · mature open-source replacementYes. Excalidraw (129k stars), draw.io (43k stars), CryptPad (8k stars) are mature open-source replacements for Whimsical — self-host with docker and stop paying $12/mo.
They pay for speed and tidy diagrams that teammates can edit without setup.
xtemplates
xmultiplayer polish
xdocs integration
xwireframe components
xcomments
xsharing permissions
These projects already replace it, free.
EExcalidrawExcellent collaborative flowcharts, wireframes, and loose visual thinking; it does not pretend to be a proper document editor or structured mind mapper.open source↗CCryptPadPrivate collaborative docs, whiteboards, diagrams, slides, and Kanban in one suite; rougher edges, fewer tasteful shortcuts, and no native mind-map mode.open source↗Ddraw.ioThe diagramming workhorse — flowcharts, architecture diagrams, UML — runs fully client-side or as your own container.open source↗What each one is, in full: Excalidraw · draw.io
all 3 open-source alternatives to Whimsical →· no votes, no pay-to-list · just what's real
Whimsical pricing
| plan | monthly | annual (per mo) | what you get |
|---|---|---|---|
| free | $0/user | $0/user | Unlimited private boards and members; 3 team boards, 3 teams, 10 guests, 5MB/file, 1GB storage, 7-day history, 20 AI credits/workspace total |
| pro | $12/user | $10/user | Unlimited team boards; 6 teams, 50 guests, 1GB/file, 100GB storage and 90-day history |
| business | $24/user | $20/user | Unlimited teams; starting at 200 guests, 10GB/file, starting at 2TB storage, unlimited history, SAML SSO and SCIM |
free tierUnlimited private boards and workspace members; 3 collaborative team boards, 3 teams, 10 guests, 2 free workspaces, 5MB/file, 1GB storage, 7-day history and 20 AI credits/workspace total
billingmonthly or annual (annual saves 17% / 2 months)
hidden costsEvery editor is charged separately in each upgraded workspace; viewers are free. Additional AI credits are sold but their price is not public. Adding/removing editors creates prorated charges/credits; custom legal/security terms require sales.
verified 2026-08-12 · source ↗
Can I open-source Whimsical?
Yes. Excalidraw replaces Whimsical today — self-host it on your own server or machine with no subscription. The full list of open-source alternatives is on this page.
How much does Whimsical cost?
Whimsical costs about $12/month (Pro, checked 2026-07-30), which is $144 per year. That's what you save by replacing it with open source.
What do I lose by replacing Whimsical?
Honestly: templates; multiplayer polish; docs integration; wireframe components; comments; sharing permissions. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Whimsical?
Yes: Excalidraw (Excellent collaborative flowcharts, wireframes, and loose visual thinking; it does not pretend to be a proper document editor or structured mind mapper.) CryptPad (Private collaborative docs, whiteboards, diagrams, slides, and Kanban in one suite; rougher edges, fewer tasteful shortcuts, and no native mind-map mode.) draw.io (The diagramming workhorse — flowcharts, architecture diagrams, UML — runs fully client-side or as your own container.) All 3 curated open-source alternatives are at caniopensourceit.online/whimsical/alternatives.