Polygon Mask Editor
Draw polygon regions and apply mosaic or blur effects. Protect privacy or focus on subjects. Client-side processing only.
Click or drag & drop image here
Supports JPG, PNG, WebP and common formats
Polygon Mask Editor Instructions
A professional image masking tool for applying mosaic or blur effects to specific regions. Commonly used to protect privacy (blur faces, license plates) or focus attention (blur background to highlight subjects). Supports touch controls and pan/zoom.
🎨 How to Draw Regions
- In Edit mode, click on the canvas to start drawing
- Continue clicking to add polygon vertices
- Click the first point (large green circle) or double-click to close the polygon
✨ Effect Guide
- Mosaic: Pixelate the region, ideal for obscuring text and faces
- Gaussian Blur: Create soft blur effect, ideal for background defocus
- Focus Effect: Set background to blur, region to 'No Effect' to highlight subjects
Privacy & Security Statement
Your data security is our top priority. This tool uses Client-side Computing technology, meaning all processing happens instantly on your device (phone or computer).
This means: No content you enter is ever uploaded to the internet or our servers. Whether it's confidential documents, private diaries, or code, you can safely paste and process it here.