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Diagram Maker

Free online diagram maker - create flowcharts and diagrams

Create flowcharts and diagrams with drag-and-drop shapes. Export as PNG or SVG for documentation.

▭ Rectangle
● Circle
◆ Decision
⬭ Start/End
▱ Input/Output
T Text
Click a shape to add it. Drag to move. Double-click to edit text. Select 'Connect' then click two shapes to connect them.
Legal Disclaimer / Yasal Uyarı: This tool creates diagrams for documentation purposes. All processing happens locally in your browser - no data is sent to servers. / Bu araç dokümantasyon amacıyla diyagramlar oluşturur. Tüm işlemler tarayıcınızda yerel olarak gerçekleşir.

About Diagram Maker

Create professional flowcharts and diagrams with our intuitive online tool. Perfect for visualizing processes, documenting workflows, planning projects, and communicating ideas. Use standard flowchart shapes including rectangles for processes, diamonds for decisions, ovals for start/end points, and more.

How to Use

  1. Click on a shape in the left panel to add it to the canvas.
  2. Drag shapes to position them where you need.
  3. Double-click any shape to edit its text label.
  4. Select the 'Connect' tool and click two shapes to draw a connecting line.
  5. Use the 'Delete' tool to remove selected shapes or connections.
  6. Click 'Clear All' to start fresh.
  7. Export your diagram as PNG or SVG when finished.

Flowchart Shape Guide

  • Rectangle - Process step or action.
  • Diamond - Decision point with yes/no branches.
  • Oval - Start or end of a process.
  • Parallelogram - Input or output operation.
  • Circle - Connector or reference point.

Frequently Asked Questions

Can I save my diagram to edit later?

Currently, diagrams cannot be saved between sessions. Export as SVG to preserve the editable vector format, which can be reopened in vector graphics software like Inkscape or Adobe Illustrator.

What export formats are available?

You can export as PNG (raster image) for general use or SVG (vector) for high-quality printing and further editing in vector graphics software.

Is there a limit to how many shapes I can add?

There's no strict limit, but very complex diagrams with hundreds of shapes may impact performance. We recommend breaking complex processes into multiple diagrams.

Can I customize colors?

The current version uses a professional blue color scheme optimized for clarity. Future updates may include color customization options.

Is my diagram data private?

Absolutely. All diagram creation happens entirely in your browser. Your shapes, text, and connections are never sent to or stored on any server.