Excalidraw vs Figma for architecture sketches and whiteboards

Indie teams often drop architecture sketches into a Figma file. As files multiply, components, auto layout, and permissions push away people who only wanted boxes and arrows. Another group opens Excalidraw, where the hand-drawn look keeps early diagrams provisional. Both instincts can be right, but the jobs differ. Searches for this pair usually want a default for whiteboard sketches.

This comparison gives routing rules for the same task and anchors prices to the Excalidraw+ and Figma pricing pages observed on 2026-09-23. No invented hands-on hours—only executable choice conditions.

Separate thinking drafts from design assets

If the goal is to draw service boundaries, arrows, and question marks in ten minutes and drop the link into chat, that is a thinking draft. Thinking drafts need low learning cost, weak component constraints, and exports that still feel provisional. Excalidraw Free stresses drawing without an account, local end-to-end encryption, png/svg/file export, and collaboration.

If the goal is pixel UI, component variants, developer handoff, and a design system, that is a design asset. Figma Starter Free offers limited product access plus some AI credits. Professional full seats are about $16 per month billed annually with higher AI credits. Dev Mode and components serve assets, not one-off whiteboards.

Write the job next to the title. Wrong job statements make every later feature comparison drift.

How official cost changes the default

Excalidraw+ pricing lists Free forever with full editor functions, one infinite scene, collaborators, and export. Plus is about $6 per user per month for unlimited scenes and folders, cloud save, access management, read-only links and embeds, voice hangouts, and presentations. For personal thinking drafts, Free is often enough. Move to Plus when you need a durable cloud library and permission layers.

Figma pricing lists Starter Free as limited access. Professional full seats are about $16 per month annually, with higher Organization and Enterprise seats. If the team already pays for UI work in Figma, sketching in the same tool reduces context switching, but it also mixes drafts with final work. The cost of mixing is permission and version noise.

Default routing: thinking drafts in Excalidraw, formal UI in Figma. Both can coexist. Do not force-migrate history just to unify tools.

File shape and collaboration habits

Excalidraw JSON can live in a repo, which suits architecture sketches that should travel with code reviews. Public write-ups often note that the hand-drawn look reduces pressure to treat a sketch as final. Figma files win on multiplayer cursors, comments, component reuse, and developer inspection. If reviewers are designers and handoff engineers, Figma fits. If reviewers are engineers aligning assumptions, Excalidraw is usually faster.

Define how links are shared. Read-only links for outward sync, editable links only for people in the live discussion. Excalidraw+ documents read-only and embed controls more explicitly for Plus. In Figma, be careful granting broad access to files that still contain unreleased components.

When not to leave Figma

If you already run a full design system, rely on auto layout for responsive work, or must hand off through Dev Mode next week, do not move to Excalidraw for aesthetics. Conversely, if you only need a temporary flowchart, do not force teammates to learn components and constraints just to stay inside a Figma whiteboard.

Another hard stop is putting production secrets or customer privacy into a publicly reachable board. Tools do not classify confidentiality for you. Inspect text on layers before shipping a link.

Scenario defaults

Two indie developers clarifying module boundaries this week should default to Excalidraw Free and keep the file with the repo. A product trio rewriting a high-fidelity signup flow should default to Figma and park discarded sketches on a separate page or FigJam. One person doing both architecture and UI can use Excalidraw in the morning and Figma in the afternoon, then paste both finals into the doc so memory is not verbal only.

Even if you already pay for Figma, architecture sketches can stay in Excalidraw. A paid seat is not a reason to shove every line into one file.

Current recommendation

For architecture sketches and early whiteboards, default to Excalidraw Free and consider Plus for cloud libraries and permissions. For interface assets, components, and developer handoff, default to Figma and upgrade by official seat prices. Freeze whether the artifact is a thinking draft or a design asset before any migration talk. Recheck live pricing the day you pay.