Stamp / Seal Image Generator
Generate digital Japanese-style stamps from your name.
Save as transparent PNG or scalable SVG.
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.
Download
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 downloads 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 name card or branding designs.