Stamp / Seal Image Generator
Generate digital Japanese-style stamps from your name.
Save as transparent PNG or scalable SVG.
Cultural Note
This tool is based on Japanese cultural, taxation, or market standards. Calculations and terminology may not directly apply outside of Japan.
Advanced Settings
🔒Text is never sent to any server. All processing is local.
About
A free browser-based tool that instantly generates digital Japanese-style stamp (hanko/inkan) images from your name. Supports Round (personal), Square (corporate), and Date Stamp styles. Save as transparent PNG or scalable SVG. All rendering is performed locally via Canvas API — your name is never sent to any server.
How to Use
Enter Your Text
Type a name or text to display on the stamp.
Choose Style & Color
Select Round, Square, or Date Stamp and customize color, size, and font.
Save
Save as PNG (transparent background) or SVG and paste into your document.
Glossary
- Hanko (判子)
- A Japanese personal or corporate seal used to authenticate documents. This tool generates digital images of hanko stamps.
- Inkan (印鑑)
- The registered official stamp. Note: images generated here are NOT legal replacements for registered inkan.
- Mitomein (認印)
- An everyday personal seal, not officially registered. Round shape is typical.
- Kakuin (角印)
- A square corporate seal bearing the company name. Used on invoices, estimates, and receipts.
- Date Stamp
- A 3-section round stamp: department (top), date (middle), name (bottom). Used for approvals.
- Tensho (篆書体)
- A traditional seal script style originating from ancient China. Most common font for Japanese stamps.
- Inei (印影)
- The impression left by a stamp on paper. Digital stamps recreate this impression as an image.
- Canvas API
- An HTML5 API for programmatic 2D drawing in browsers. Used as the rendering engine for this tool.
FAQ
- Q.Is the generated image legally valid?
- No. Generated images cannot replace legally registered seals or bank seals. They are suitable for informal use such as internal documents or casual estimates.
- Q.Is my text sent to a server?
- No. All rendering is performed locally via Canvas API. Your text never leaves your device.
- Q.Can I get a transparent background?
- Yes. PNG saves include a transparent background, ideal for overlaying on documents.
- Q.Can I change the font?
- Yes. Choose from over 20 Google Fonts (Mincho, brush-style, handwriting, etc.). It may take a few seconds to load a font for the first time. If the text shifts vertically depending on the font, please use the "Vertical Offset" slider to adjust it.
- Q.Does it work on mobile?
- Yes. The tool is responsive and works on smartphones and tablets.
Use Cases
Freelance Estimates & Invoices
Add a digital seal to look professional without physical stamps.
Internal Document Approval
Use a date stamp for digital approvals on circulation documents.
Email PDF Attachments
Insert a stamp image as a signature substitute.
Design Mockups
Use stamp images as decorative elements in business card or branding designs.
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Please let us know your thoughts to help us improve the tool.
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