Turn any idea into a clear diagram in minutes. Build it with your team in real time, then share it with a single link.
No sign-up required. The canvas opens straight away.
The simple path is the default: open a link and draw. The depth is there the moment you reach for it, and you never trade one for the other.
Explore how we keep it simpleDiagrams stay private until you share. Everyone you invite shows up on the canvas in real time, with live cursors, comments, and presence.
Explore collaborationOne canvas, many jobs
From a quick flowchart to a full system map, the same canvas stretches to whatever you need. Browse a few of the things teams build with it.
Map a process step by step, branch on decisions, and let arrows re-route themselves as you move things around.
Make every diagram yours: start from a template, recolour with a theme, set the type and the backdrop, and shape every border, arrow, and block the way you want it.
Explore customisationA diagram does not have to sit still. Animate a shape to signal status, send the flow marching along an arrow, let the backdrop drift, and reach for a spotlight when you present. Every animation is purely decorative motion: it freezes to a clean still frame when exported and respects reduced-motion.
Explore animationWork fast and stay organised: select in bulk, group and lock elements, copy a look from one to the next, and keep your canvas focused.
Explore the organising toolsEvery diagram is a stack of tabs, each its own canvas. Split a big system across them, link between them, copy them between diagrams, and lock the ones that are done.
Explore tabsYour work saves itself, steps back when you slip, and comes back exactly as you left it. Nothing to remember, nothing to lose.
Explore what keeps work safePrivacy by design
We don’t make money by being creepy. No third-party trackers, no ads, no resale, no surprise audience. Just a diagram editor that treats your work like your work.
No Google Analytics. No Segment. No marketing pixels. The only product telemetry is anonymous, first-party events served from our own API, with every event we measure listed publicly on /telemetry.
Every diagram lives in your own row, scoped to your owner id. Export any tab to PNG, SVG, PDF, Mermaid, Markdown, or portable JSON whenever you like, and delete your account from settings to remove it all in one go. We don't make money by holding it hostage.
We don't sell your data. We don't trade it. We don't share it with advertisers or model trainers or anyone else. There is no paid tier and no plan to add one, so we have no commercial pressure to monetise what you draw.
All persistence runs on Cloudflare D1 + R2, which encrypt every row and blob at rest with AES-256. Every request is TLS, end to end. The same protections protect telemetry, share links, and uploaded images.
A new diagram is visible only to you until you generate a share link. Share links are unguessable codes you choose to hand out: protect them with a password, set them to expire automatically after a week, a month, or six months, or revoke them at any time, instantly disconnecting anyone currently using one.
The whole stack (editor, API, this site) is on GitHub under the MIT license. Anything we claim here, you can read in the source. Run your own copy if you prefer, on your own Cloudflare account, in an afternoon.
Read the full privacy policy or check the live telemetry dashboard.
A diagram is rarely just shapes. Drop in real images, unfurl a link into a card, lay out a table, and reach past boxes for a whole library of icons. The canvas takes whatever you bring it.
Explore richer contentSay it your way on the canvas: sketch freehand, format text down to the word, and tuck the extra context into a note that travels with the element.
Explore drawing and textLean on the editor for the precise bits: rotation that snaps to clean angles, and guides that line everything up so a busy canvas stays tidy.
Explore the smart assistslivediagram is open at the edges. Move diagrams in and out as the formats your tools already speak, drive it programmatically from your own scripts, or hand it to an AI that reads and builds your diagrams with full context, all on the same account, all revocable.
Explore connecting your toolsMIT-licensed. Static frontend + Cloudflare Workers backend. Run it on your own account in an afternoon. Or use the hosted version, your call.
Explore the open foundationsNo sign up required, no subscriptions or payments of any kind, livediagram is completely free and open source.