czSignature.js JavaScript Signature Library Playground

A modern JavaScript library for canvas-based digital signatures. Features pressure sensitivity, event handling, and multiple export formats.

Pen Color

Background Color

Min Width 1.0

Max Width 4.0

Enable Pressure Support

Smoothing Mode

Post Live

Smoothing Ratio 0.5

Min Point Distance 0.8

Fade Points 4

Trim Output

Output Pen Color

Output Background Transparent

Image DPI:

Signature Canvas

Output Format

SVG PNG JPG

Output Code (Click to Copy): Preview: