🔴 Seal Maker

Generate seal and stamp-style images just by entering a name. Supports round, square, and oval styles. PNG export available.

preview

Usage and Application Examples

  • Use as an electronic seal for digital documents (internal documents, etc.)
  • Design accent for New Year's cards and greeting cards
  • As profile image material for blogs and social media
  • Logo-style design for handmade products
  • As an accent for business card designs

Features

  • 3 styles — Choose from round seal (personal/formal), square seal (corporate), or oval
  • Vertical layout — 2+ characters automatically arranged vertically. Recreates authentic seal impressions
  • Blur effect — Add realistic ink blur and unevenness like an actual seal impression
  • Transparent PNG export — Save with transparent background for easy document composition
  • Privacy protection — All processing happens in your browser. No data is sent to servers

About Seal Types

Personal Seal (Mitome-in)

A seal used for daily verification and approval. Typically a round seal 10.5-12mm in diameter with only the surname engraved. Widely used for receiving packages and confirming internal documents.

Formal Seal (Jitsu-in)

A registered seal with legal validity. Typically a round seal 15-18mm in diameter with the full name engraved. Used for important contracts such as real estate transactions and vehicle registration.

Square Seal (Kaku-in)

A square seal primarily used by corporations. The company or organization name is engraved and used for daily business documents like quotes, invoices, and receipts. Typically 21-24mm square.

What is Seal Maker WEB?

Seal Maker is a creative digital tool for generating authentic-looking seal and stamp images simply by entering a name or text. The tool offers multiple style options including round, square, and oval stamp shapes that mimic traditional official seals. Built-in effects like blur and color customization allow you to create stamps suitable for digital documents, certificates, logos, or artistic projects. This eliminates the need for graphic design skills while producing professional-looking results instantly.

How to Use

Begin by typing the name or text you want on your seal into the input field. Select your preferred stamp style from the available options—round creates a classic circular seal appearance, square provides a modern formal look, and oval offers an elegant alternative. Apply additional effects such as blur, rotation, or color adjustments to match your aesthetic preferences. Preview your design in real-time as you make changes. Once satisfied, download the seal image in standard image formats for use in documents, websites, or applications.

Use Cases

Seal Maker serves diverse creative and practical purposes:
• Digital Documents: Add official-looking seals to certificates, diplomas, or formal letter templates
• Branding Elements: Create custom seals for business logos, product labels, or company branding materials
• Social Media Graphics: Enhance posts with decorative seal elements to add visual interest and authenticity
• Educational Projects: Design seals for school presentations, team badges, or program verification marks

Tips & Insights

Seal design carries cultural and historical significance—round seals traditionally evoke authority and formality, while oval seals suggest elegance. The blur effect creates an embossed appearance that mimics real wax seals. Consider your color choices carefully; gold, red, and dark blue suggest official authenticity. Export in PNG format to preserve transparency, allowing you to layer your seal over existing documents seamlessly.

Frequently Asked Questions

How do I use the Seal Maker tool?

Simply enter your name, select the seal style (round, square, or oval), color, and size, then click "Create" to generate a stamp-style image.

How many characters can I enter?

1-4 characters are supported. Personal seals typically use 1-2 characters, while formal seals use 3-4 characters.

What is the blur effect?

It reproduces the ink blur and unevenness of an actual seal impression. This creates a more realistic appearance.

How can I save the generated image?

Click the "Download PNG" button to save the image in transparent PNG format. You can also change the background to white.

Can I use seals created with this tool officially?

No. This tool generates seal-style design images and cannot be used for official documents or legally binding purposes. Please use it for design reference or digital content.

What file format and resolution is the generated image?

The generated seal image is typically saved as a PNG file with transparent background, maintaining high resolution suitable for printing or digital use.

Can I choose the color of the seal?

The seal colors are pre-designed for a traditional stamp appearance. You can typically customize colors through the blur effect option or adjust the image afterward using an image editor.

Can I rotate or change the orientation of the seal?

Currently, the seals are generated in standard orientation. For rotation, you can download the image and use an image editor or browser tools to rotate it as needed.

Does the generated seal have a transparent background?

Yes, the seal images are generated with a transparent background, making them easy to overlay on documents or combine with other design elements.

Can I generate multiple seals at once?

This tool generates one seal at a time. If you need multiple seals, you can generate them individually and save each one, or use an image editor to combine multiple saved seals.

What fonts or styles are available?

The tool offers round, square, and oval style options that create different visual effects. The font styling is automatically applied based on your chosen shape to maintain a professional seal appearance.