Free online tools for flowcharts, charts, diagrams and timelines with no sign-up
Stage
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Founded
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Based in
IT
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Pricing model
Freemium
Freemium
Pricing
Free plan available with limitations. Pro plan removes ads and includes advanced features; credits available for purchase.
Free: no account required, all diagram and chart makers, PNG/SVG/PDF export, no watermark. Pro: Monthly $9.99 a month, Yearly $99.99 a year with 7-day free trial, Lifetime $239.99 once. Euro area: €10.99 a month, €109.99 a year, €259.99 once (VAT included).
Key features
Palette Generator - create palettes by hitting spacebar
Explore 10M+ color palettes
Extract colors from images
Contrast Checker for accessibility
Palette Visualizer for real design preview
Color Picker with color information
AI-powered Color Bot
Save unlimited palettes and projects
Export in multiple formats
Plugins for Figma, Adobe and Chrome
Flowchart and process diagram maker with canvas and text-to-diagram modes
Text-to-diagram tools for UML, ER and sequence diagrams
Chart tools: pie chart, line graph, gauge and Sankey diagram
Automatic diagram layout from typed text
Export to PNG, SVG and PDF without watermark
Share diagrams with share links
Pro: editable .drawio export and vector PDF
Pro: multi-page documents and layers
Diagram checks for unlabelled branches and dead ends
Works on phone and computer
What makes it different
Ultra-fast palette generation with spacebar
Over 10 million user-created palettes to explore
AI-powered color suggestions with Color Bot
Real design preview with Palette Visualizer
Trusted by 8+ million creative minds
Completely free with no account required and no watermark on exports
Nothing uploaded: all work stays on your device in your browser
Results computed by the same tested code, not manually typed
Multiple export formats: PNG at 4 sizes, SVG and PDF
Converts between formats: Mermaid to draw.io, SQL to ER, Visio to flowchart
Coolors
Diagram Smith