Do these tools upload my content?

No. The whiteboard, mind map, font subsetting and more all run locally in your browser, so content is never uploaded.

What tools are included?

A whiteboard, an Excalidraw hand-drawn board, a mind map and a font subsetting tool, among others.

Are these tools free?

Yes. Every tool is free to use without an account and runs directly in your browser.

Are whiteboard and mind map contents saved to the cloud?

No. Content is edited and kept locally in your browser and never uploaded to the cloud; export it yourself to keep it long-term.

Other tools

A simple collection of online tools for font subsetting, local tldraw whiteboards, Excalidraw boards, and Markdown mind maps, built with mature libraries and running in your browser.

Fonts, whiteboards, boards, and mind maps are processed locally in your browser and are not uploaded to a server.

Other tools

Font SubsetExtract selected characters from TTF / WOFF fonts and generate a smaller TTF or WOFF subset font WhiteboardCreate a full local whiteboard with tldraw, including shapes, drawing, notes, images, pages, and export Excalidraw BoardDraw a local hand-drawn style board with open-source Excalidraw, including shapes, text, images, and export Mind MapEdit mind maps directly with the open-source Mind Elixir library and export a Markdown outline

What this category is for

What lands here does not fit the categories above but runs locally just the same: three canvas tools; a whiteboard, a hand-drawn-style board and a mind map; plus a font subsetting tool.

Canvas content is stored in your browser, and font subsetting reads the font file into memory and cuts a subset out of it. Neither uploads anything.

Choosing between these tools

You want a board you can draw and stick notes on: Whiteboard is built on tldraw, with shapes, freehand drawing, sticky notes, images, multiple pages and export; good for working through a process or capturing a meeting as it happens.
You want the look of a sketch: Excalidraw Board produces hand-drawn strokes, which suits architecture sketches and explanatory diagrams: the deliberate roughness tells the reader this is a draft that will still change.
You want to organise a hierarchy: Mind Map is built on Mind Elixir, edits the node tree directly, and exports to a Markdown outline you can carry on writing in a document.
You want a smaller web font: Font Subset pulls only the characters you specify out of a TTF or WOFF, producing a far smaller font. CJK fonts run to several megabytes; embedding only the few dozen glyphs actually used typically brings that down to tens of kilobytes.

Formats and capabilities compared

All three canvas tools exist to get an idea drawn, but they suit different stages; and the wrong one misleads the reader about your intent.

Tool	Data structure	Visual style	Stage it suits
Whiteboard	Free canvas with no enforced relationships	Clean vector	Diagrams and meeting records that should look finished
Excalidraw Board	Free canvas with grouping and layer order	Hand-drawn	Draft stage, where deliberate roughness invites changes
Mind Map	A tree; every node has one parent	Structured node tree	Clear hierarchical breakdowns, exportable to Markdown
Font Subset	Not a canvas tool; it processes font files	:	Reducing web font payload

Limits that apply across this category

Canvas content lives in browser local storage, so clearing browsing data, switching browsers or moving to another device makes it disappear. Export anything you care about to a file.

Font subsetting is bounded by licensing. Not every font may be redistributed or embedded in a web page, so check the licence terms before processing a commercial font; technically possible is not the same as permitted.

Frequently asked questions

Do these tools upload my content?: No. The whiteboard, mind map, font subsetting and more all run locally in your browser, so content is never uploaded.
What tools are included?: A whiteboard, an Excalidraw hand-drawn board, a mind map and a font subsetting tool, among others.
Are these tools free?: Yes. Every tool is free to use without an account and runs directly in your browser.
Are whiteboard and mind map contents saved to the cloud?: No. Content is edited and kept locally in your browser and never uploaded to the cloud; export it yourself to keep it long-term.