Diagram Smith
Free online tools for flowcharts, charts, diagrams and timelines with no sign-up
Browser-based diagram and chart maker supporting flowcharts, UML, ER diagrams, timelines, family trees and Venn diagrams. No account required, exports to PNG
About this launch
Diagram Smith is a free online diagram maker that runs in your web browser with no sign-up required. It provides a comprehensive set of diagram and chart tools including flowcharts, process diagrams, data flow diagrams, decision trees, Gantt charts, timelines, org charts, family trees, ER diagrams, UML class diagrams, network diagrams, and various chart types like pie charts and line graphs.
The tools work in three ways: canvas tools let you drag shapes and arrows around or convert typed text into diagrams; text-to-diagram tools draw diagrams as you type plain text; and chart tools redraw as you type or paste numbers from spreadsheets. All work happens in your browser with nothing uploaded. Results export as PNG, SVG or PDF with no watermark.
Diagram Smith Pro is an optional paid upgrade adding editable .drawio export, vector PDF, multi-page documents, layers, diagram checks and analysis. Pro comes in monthly ($9.99), yearly ($99.99 with 7-day trial), or lifetime ($239.99) plans. The service is also available as apps for Android and Windows.
What it does
- 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
Pricing
Pricing model: Freemium
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).
Shopper questions
Is Diagram Smith really free?
Yes. Every diagram and chart maker, the whole editor, every template, PNG and SVG export, a PDF without watermark, up to 30 named copies per tool, and share links cost nothing and need no account. Three tools have size limits in Free: org charts, ER diagrams and flowcharts from code.
What does Pro add that Free does not?
Pro adds editable .drawio export, vector PDF, extra pages, layers, the Brand theme, diagram checks, fault tree and PERT analysis, word cloud outlines, WBS to Gantt, Visio to flowchart conversion, and larger imports.
Can I cancel Pro or get a refund?
Yes. Monthly and yearly plans renew until you cancel anytime on your plan page. Pro keeps working until the end of the period paid for. Your first Pro purchase is refunded in full if you ask by email within 14 days of paying.
Do I need an account and are my diagrams uploaded?
Free requires no account. Paying for Pro gives you a licence key that unlocks it in your browsers. Your diagrams stay in your browser either way and are never uploaded.
How much does Pro cost, and is there a free trial?
Pro has a monthly, a yearly and a lifetime plan; the prices are at the top of this page, in euros too for the euro area with VAT included. The yearly plan starts with a free trial; monthly and lifetime have none. It is for one person, in up to 5 browsers at a time; team and company plans are not offered.
Diagram Smith has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
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