Pixelate Image Online
Pixelate your images online for free. Apply mosaic effects to the whole image or select specific areas with rectangle or brush tools. Perfect for hiding sensitive information in photos.
How to Pixelate an Image Online
Click the upload area or drag and drop your file.
Choose "Whole Image" to pixelate everything, or "Select Areas" to target specific regions.
Use the rectangle tool to draw boxes around areas you want to pixelate, or switch to brush mode to paint over irregular shapes.
Adjust the block size slider to control the pixelation strength.
Preview your result and download the pixelated image.
Why Use This Pixelate Tool?
Whole Image or Selected Areas
Pixelate the entire photo, or precisely target faces, license plates, or documents.
Rectangle & Brush Tools
Draw clean boxes for regular shapes, or paint freehand over irregular areas.
Adjustable Block Size
Control exactly how strong the mosaic effect is, from subtle to fully obscured.
100% Private
Runs entirely in your browser via the Canvas API. Your images never touch a server.
Frequently Asked Questions
- Can I pixelate just part of an image?
- Yes. Switch to "Select Areas" mode and use the rectangle tool to draw boxes, or the brush tool to paint over irregular shapes. Only the areas you mark get pixelated.
- Is this good for hiding sensitive information?
- Yes — pixelating faces, license plates, documents, or other sensitive details is one of the most common uses for this tool. Use a larger block size for stronger obscuring.
- Is my image uploaded to a server?
- No. All processing happens entirely in your browser using the Canvas API. Your image never leaves your device.
- Does the downloaded image have a watermark?
- No watermark, ever. The downloaded image is clean and ready to use.