Online Seal Maker

What is an Online Seal Maker?

The Online Seal Maker is a free electronic seal creation tool. Without Photoshop or other pro software, you can quickly generate round official seals, company stamps, department stamps, contract seals and financial seals in the browser, with full control over text and style. Ideal for e-documents, online contracts and internal approvals.

Key Features

• Main text: set the company or organization name.
• Center content: a five-pointed star by default, replaceable with symbols or text.
• Bottom text: add usage text such as Contract Seal, Financial Seal or Invoice Seal.
• Seal color: standard red by default, also supports blue, purple and custom colors.
• Multiple sizes: 240×240, 320×320 and 400×400.
• Inner/outer borders: toggle and adjust thickness independently.
• Wear effect: noise simulates a real stamped impression.
• Transparent PNG: exports transparent-background PNG for Word, PDF and Excel.
• Local generation: everything is drawn in the browser; your text never leaves your device.

How to Use

1. Enter the main seal text (e.g. company name).
2. Set center content, bottom text and seal color.
3. Choose the size and toggle borders and noise as needed.
4. Click "Generate Seal", preview, then download the PNG.

Legal Notice

Seals produced here are for office assistance, design reference and internal demo only. For legally binding electronic seals, register with the public security authority and use a trusted CA digital certificate.