Design Professional Seals & Stamps Offline

SigilForge is a completely offline stamp and seal design tool. Create circular, oval, and square stamps with curved text, stars, borders, and signatures. No internet required. Your privacy is 100 percent protected.

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3
Stamp Types
20+
Fonts
5+
Effects
100%
Offline
SigilForge Seal Designer Create Custom Stamps Circular Oval Square Curved Text & Stars Signatures & Dates Design Save Export
5-Pointed Star
Signature Stamp

Powerful Stamp Design Tools

Everything you need to create professional seals and stamps

Multiple Stamp Types

Create circular, oval, and square stamps. Adjust size and proportions freely. Perfect for company seals, invoice stamps, and personal signature stamps.

Circle / Oval / Square

Curved Text

Add top and bottom curved text that follows the stamp shape. Adjust font size, color, and spacing for perfect alignment.

Arc Text Support

Five-Pointed Star

Add a centered five-pointed star to your stamp. Adjust star size to fit any stamp dimension. Standard for official company seals.

Centered Star

Border Styles

Choose from single line, double line, or gear toothed borders. Adjust border thickness for the perfect look.

Single / Double / Gear

Stamp Colors

Select from red, blue, black, or custom colors. Adjust opacity for a realistic stamped effect. Perfect for digital documents.

Red / Blue / Black / Custom

100% Privacy

All stamp designs are processed locally on your device. No uploads. No servers. Your seals never leave your device. Works completely offline.

No Internet Needed

Stamp Types

Choose the perfect shape for your needs

Circular SealCompany / Official
Oval SealInvoice / Contract
Square StampReceived / Paid

Stamp Effects & Customization

Make your stamp look authentic

朱红 (Standard Red)
大紅 (Bright Red)
暗红 (Dark Red)
深蓝 (Dark Blue)
纯黑 (Pure Black)
自定义颜色
透明度调节
边缘磨损
毛边效果
纸张纹理
PNG export with transparent background

Start Creating Stamps Now

Free to use, no registration required. All processing done locally on your device.

App Store
Coming Soon
Google Play
Coming Soon
Web Version
Try Online

Current version v1.0.0 | Completely Free | Privacy Secure

Frequently Asked Questions

Find the answers you need quickly

What stamp types can I create?
Circular seals for company stamps, oval seals for invoice stamps, and square stamps for received/paid stamps. Each type can be customized with text, stars, and borders.
How to add curved text?
Enter your company name in the Top Arc Text field. Text automatically curves along the stamp shape. Adjust font size for perfect fit.
Can I add a star to my stamp?
Yes. Toggle the star switch on. Adjust star size with the slider. The star automatically centers in the stamp.
What colors are available?
Standard red (Zhu Hong), bright red, dark red, dark blue, pure black, and custom color picker. Adjust opacity for realistic stamp effects.
Are my stamps uploaded to any server?
Absolutely not. SigilForge works completely offline. All stamp designs stay on your device. No uploads. No servers. Your privacy is 100 percent protected.
How to export my stamp?
Tap Export button, choose PNG with transparent background or JPEG with white background, adjust resolution and quality, save to gallery.

Customer Support

Having issues? We're here to help

Email Support

sigilforge@example.com

Reply within 24 hours

User Guide

Detailed tutorials
Quick start guide

In the app