Create
Mockly
Create clearly labelled social-media mockups for demos, stories, and prototypes.
SketchFlow
Turn rough ideas into polished visual flows on an infinite canvas.
SketchFlow is a free hand-drawn whiteboard that runs in your browser. It suits anyone who wants to sketch a flowchart, user journey or rough diagram without installing software or creating an account. You get shapes, arrows, text, images and frames on an infinite canvas, plus PNG, SVG and project file exports.
Features
What you can do with SketchFlow
Shapes, arrows and freehand drawing
Draw rectangles, diamonds, ellipses, lines, arrows and freehand strokes in a sketchy hand-drawn style. Add text and drop in images from your device.
Frames, grid and auto layout
Group parts of a diagram inside frames and toggle a snap grid. An auto layout command tidies a messy diagram in one step.
Keyboard shortcuts and command palette
Every tool has a single-key shortcut, and a command palette lets you run actions like export, fit to screen or search canvas text.
Laser pointer for presenting
A laser pointer tool draws fading strokes so you can point at parts of a diagram while you talk it through.
Autosave in your browser
Your scene is saved to this browser's local storage as you work, with undo and redo history. Nothing is stored on an account.
Export and share
Download your work as PNG, SVG or a .sketchflow file you can load again later. You can also copy a share link that carries the diagram inside the URL.
How to use it
How to use SketchFlow
Open SketchFlow and pick a tool from the left toolbar or press its shortcut key.
Draw your shapes, connect them with arrows and add text labels.
Adjust colours, stroke and fill style in the properties panel.
Export the result as PNG or SVG, or save a .sketchflow file to keep editing later.
Good for
When it comes in handy
- Plan a user journey before a design review
- Sketch a process flowchart for a team meeting
- Map out ideas or a rough mind map
- Draw a quick system diagram for documentation
- Point through a diagram live with the laser tool
FAQ
SketchFlow questions
Is SketchFlow free?
Yes. SketchFlow is free to use in your browser with no sign-up.
Where is my drawing saved?
It autosaves to your browser's local storage on this device. Clearing site data removes it, so save a .sketchflow file if you want a backup.
What formats can I export?
You can export PNG and SVG images, and save the full scene as a .sketchflow file that you can open again in SketchFlow.
Can I share a diagram with someone?
Yes. The share button copies a link that contains the diagram itself, and whoever opens it can edit their own copy. There is no live multi-user editing.
Does it work on a phone or tablet?
It runs in any modern browser, but drawing and keyboard shortcuts are easiest on a computer with a mouse or trackpad.
Related free tools
Tools that pair well with it
Single-purpose AltFTool tools for the same kind of job.
Flow Chart MakerCreate flowcharts with ease and share them with your team.SVG OptimizerShrinks an SVG file by removing editor metadata, comments and default attributes and by rounding coordinate precision, without changing how it renders.SVG to ImageRasterise SVG markup to a downloadable PNG, JPEG or WebP at any scale, entirely in your browser.Image EditorAdjust brightness, saturation, inversion, grayscale, rotation, and flip on your images.Photo to SketchConvert any photo into a realistic pencil sketch with adjustable intensity, zoom, before/after compare, and one-click download.
Keep exploring
More experiments from AltFTool Labs
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Maker Studio
Create playful posters, newspaper clippings, scene cards, and character graphics.
Create
TemplateForge
A self-hosted template marketplace: browse polished website designs, preview them interactively, and download complete blueprints ready to build.
Built something of your own?
Where to launch a web experiment and earn backlinks
Browser games, creative-coding demos and side projects get their first visitors and links from launch sites, game portals and galleries. Our backlinks list keeps the ones that accept small web projects, with estimated authority, link type, cost and the exact submit page.
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