Free AI diagram and whiteboard tools

Ranked by editable documents included (2)

These state their free allowance in the same unit, so they can be ordered. Most first.

Tool	editable documents included	Stated limits	What makes you upgrade	First paid price	Kind
LucidchartRead Oct 29, 2026	3	Free plan with 3 editable documents, 75 shapes per document, 100 templates; no credit card required. Paid plans unlock unlimited documents and shapes."No, we offer a free version of Lucidchart that gives you access to basic features, including three editable documents, up to 75 shapes per..."Source	Paid plans unlock unlimited documents and shapes	$9/mo yearlyIndividual	Free plan
LucidsparkRead Oct 29, 2026	3	Free Lucidchart: 3 editable documents, 75 shapes per document, 100 templates, presentation mode, commenting"No, we offer a free version of Lucidchart that gives you access to basic features, including three editable documents, up to 75 shapes per..."Source	Individual has no cap on use	$9/mo yearlyIndividual	Free plan

Other free plans (15)

Their limits are stated in different terms, so they aren't ranked against each other. Ordered by first paid price.

Tool	Stated limits	What makes you upgrade	First paid price	Kind
FigJamRead Oct 29, 2026	Starter plan is free with unlimited drafts, UI kits and templates, and 150 AI credits/day up to 500 AI credits/mo"Free limited access to Figma products"Source	Not found	$5/moProfessional Collab seat	Free plan
AFFiNERead Oct 29, 2026	Cloud Free: unlimited local workspaces, 10 GB cloud storage, real-time collaboration with up to 3 members, 7 days version history, no time limit"There is no time limit on the Free plan."Source	Not found	$6.75/mo yearlyCloud Pro	Free plan
Napkin AIRead Oct 29, 2026	Free forever: 500 AI credits per week, unlimited editing, file import and PNG & PDF export, with Napkin branding on visuals"Unlimited PNG & PDF export"Source	Not found	$9/userPlus	Free plan
Mermaid ChartRead Oct 29, 2026	Basic plan: free, core diagramming features, 3 diagrams listed (compare table says up to 6), limited diagram size, limited AI (15 credits), 1 team and project"Yes! The Basic plan gives you access to core features so you can start creating diagrams right away."Source	Not found	$10/user yearlyPlus	Free plan
MiroRead Oct 29, 2026	Free plan with 3 editable boards, templates, formats, 10 AI credits per month, 100 MCP calls per day and 250+ integrations; extra boards remain viewable but not editable"Yes, Miro has a free plan with unlimited team members. You get up to 3 editable boards and with 10 credits per month you have the ability to try..."Source	Not found	$10/userStarter	Free plan
WhimsicalRead Oct 29, 2026	Free plan with unlimited boards, unlimited workspace members, unlimited guests, 10 AI credits per member; 50 board objects and 50 doc blocks per month, watermark on exports, 7-day version history."Yes! With our Free plan, you can have unlimited boards, unlimited workspace members, unlimited guests, 10 AI credits per member, and more."Source	50 board objects and 50 doc blocks per month, watermark on exports, 7-day version history	$10/user yearlyPro	Free plan
BoardmixRead Oct 29, 2026	Free plan with 1 team workspace, 3 editable boards, 100 objects per board, 1 GB storage, standard-definition export and 10 version history records. No credit card required."The Free plan includes 3 editable boards, up to 100 objects per board and standard-definition export."Source	Starter has no cap on use	$12/userStarter	Free plan
ClickUp WhiteboardsRead Oct 29, 2026	Free Forever plan with unlimited tasks, unlimited free members, 60 MB storage, up to 3 whiteboards, and 500 Brain trial credits per workspace"Whiteboards are included on the Free Forever plan with generous limits."Source	Free cap: 3 whiteboards max	$12/userCore	Free plan
MockFlowRead Oct 29, 2026	Basic is free forever with 1 editor plus 5 reviewers, 4 projects and 500 component limit, 100 AI credits per month, 7-day revision history. For personal and nonprofit use only; commercial work needs a paid plan."Yes. Basic is free forever, with no credit card and no trial clock."Source	Commercial work needs a paid plan	$12/moPlus	Free plan
IcePanelRead Oct 29, 2026	Free plan: 1 editor, unlimited viewers, up to 100 model objects, unlimited diagrams, 2 tag groups, 1 flow per diagram"Up to 100 model objects"Source	Free cap: Up to 100 model objects	$50/userGrowth	Free plan
EraserRead Oct 29, 2026	Free forever: 3 files, 3 AI credits, 7-day version history, unlimited guests"Free forever"Source	More than 3 credits: Business includes 100	$60/userBusiness	Free plan
ConceptboardRead Oct 29, 2026	Free plan with 3 active boards, 100 objects per board and 250 MB storage"Start for free"Source	Not found	€5/userStarter	Free plan
CreatelyRead Oct 29, 2026	A Free plan exists and includes Basic Atlas (org charts and structural views). Other Free limits are not stated."Basic Atlas, including org charts and structural views, is included on every Creately plan, even Free."Source	Not found	No price found	Free plan
draw.io (diagrams.net)Read Oct 29, 2026	Free forever, no sign-up required, no lock-in"Free forever • No sign-up required • No lock-in"Source	Free forever, no sign-up required, no lock-in	No price found	Free plan
ExcalidrawRead Oct 29, 2026	Forever free open-source editor, no account needed"Try the forever free Excalidraw open-sourced editor for yourself and get your ideas out there."Source	Forever free open-source editor, no account needed	No price found	Free plan

Free trial only (1)

• Visio (Microsoft): 30-day free trial for Visio Plan 1 and Plan 2, first-time trial users with a work or school account

Questions

How this page is made

Every limit is the vendor's own, read from its pages and quoted. A tool counts as a free plan when the text describes something you can keep using; a fixed number of days or a single batch of credits is listed separately. We don't test the plans. How prices are read.