A fast, private workspace for your notes, code snippets, rich documents, markdown, and drawings — plus 16 built-in developer tools. Everything runs locally in your browser. No login, no server, no tracking.
Six things Notoo does, all without an account and all stored on your own device.
Capture everything in one place — quick notes, checklists, and fully formatted documents with headings, tables and embeds.
A real editor for your snippets, with highlighting across dozens of languages. Keep the scratch code you never want to lose.
Write markdown and watch it render side by side. Ideal for READMEs, notes and documentation drafts.
Sketch a state diagram, a system design or a rough idea without leaving your workspace.
Format JSON, decode a JWT, hash text, test a regex, parse cron expressions and more — each one a shareable link.
Everything is stored in your browser. Nothing touches a server, so there is nothing to sign up for and nothing to leak.
Notoo keeps your notes, tasks, snippets, documents, markdown, and sketches in one place — stored right in your browser, so nothing ever touches a server. Open it and start typing; there's no sign-up.
Developers also get a growing suite of 16 instant tools — format JSON, decode a JWT, generate UUIDs, hash text, test regex, convert cron expressions, diff files, and more — each one shareable as its own link.
Each tool runs entirely in your browser and has its own shareable link.
Most note apps want an account before you can type a word, then sync your half-finished thoughts to a server you don't control. Notoo goes the other direction: everything stays on your device, so a scratch note stays a scratch note.
That constraint turned out to be freeing rather than limiting. With no backend there is no sign-up flow, no sync conflicts, no waiting on a network round-trip — and nothing that can leak, because nothing ever leaves your browser.
What you get is a notebook, a code editor, a markdown previewer, a sketchpad, and a set of developer tools that happens to require nothing from you.
No account, no install, nothing to configure. Open it and it's yours.
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