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ConceptViz vs Napkin AI

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Entry price
ConceptViz from $20.83/mo, Napkin AI from $9/seat/mo — different billing units, so no direct winner
Free plan
Both have one
Public API
Both have one
Higher Trust score
Napkin AI — 77 vs 66 for ConceptViz
Best fit
ConceptViz: Teachers building labeled diagrams for lesson slides · Napkin AI: Consultants and managers turning bullet points into slide diagrams

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

ConceptVizTurns a plain-English description into a labeled science diagram you can export as SVG or PNG.Napkin AITurns pasted or imported text into editable diagrams, flowcharts, mind maps, infographics and charts, with no prompt to write.

Side by side

FactConceptVizNapkin AI
CategoryDiagramming & WhiteboardsDiagramming & Whiteboards
Pricing modelFreemiumFreemium
Starts at$20.83/mo$9/seat/mo
Public APIYesYes
Trust score66 / 10077 / 100
PlatformsWeb, APIWeb, API
Company—Napkin AI
Launched—2024
Last verifiedOct 15, 2026Oct 29, 2026

What our research says

ConceptViz

ConceptViz is narrowly built for one job: turning a text description into a correctly labeled science figure, which is faster than dragging shapes in a general diagramming tool when the content is technical. It has moved upmarket since launch: the entry plan is now about $250 a year, document-driven figure sets need Pro, and the API sits on the $1,500-a-year Max plan.

Pros

  • Exports to editable SVG, not just a flat image
  • Free start lets you try it without a card
  • Agent refines a figure over conversation and, on Pro, plans sets of related figures from your documents

Cons

  • Free start is only 2 image credits valid for 7 days
  • Scope is specifically science figures, not general-purpose drawing
  • API access is reserved for the most expensive Max plan
  • SVG and PPTX exports cost extra credits on top of generation

Napkin AI

Napkin is a quick way for writers, teachers and consultants to add a clear diagram to a slide or post without opening a design tool. Designers who need pixel-level layout control or long, data-heavy charts will outgrow it.

Pros

  • Works from existing text instead of prompts
  • Every generated element stays editable
  • Exports to PPT and SVG on paid plans, PNG and PDF on Free
  • Free weekly credits cover light use

Cons

  • Free visuals carry Napkin branding
  • Credits scale with words selected, so long passages burn through them
  • No student or non-profit discounts

Which one fits

Choose ConceptViz if you need

  • Teachers building labeled diagrams for lesson slides
  • Students and researchers who need a quick figure for a paper
  • Anyone who wants an editable SVG diagram instead of a flat image

Choose Napkin AI if you need

  • Consultants and managers turning bullet points into slide diagrams
  • Bloggers and teachers adding explanatory visuals to text
  • Products that need visuals generated from text via API

ConceptViz vs Napkin AI: the questions people ask

Is ConceptViz cheaper than Napkin AI?

They charge in different units, so there is no like-for-like answer: ConceptViz starts at $20.83/mo, Napkin AI at $9/seat/mo. Entry price is the lowest paid plan as we last verified it.

Does ConceptViz or Napkin AI have a free tier?

Both: ConceptViz has a free tier, and Napkin AI has a free tier.

Which has a public API, ConceptViz or Napkin AI?

Both ship a public API, so either can be built on; the fact table above shows the platforms each one runs on.

More comparisons

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