Pixelate Image Online
Pixelate images online in your browser. Adjust pixel block size, preview the mosaic effect, and download pixelated JPG, PNG, or WebP files without uploading.
What this tool does
NexKit Pixelate Image turns supported JPG, PNG, and static WebP files into blocky mosaic-style images directly in your browser. The pixel size controls how large the visible square blocks become.
This tool creates real pixelated output pixels. It is different from Blur Image: blur softens detail smoothly, while pixelation groups detail into hard-edged blocks for a mosaic or pixel-art look.
How to pixelate an image
Open the Pixelate Image page, choose one or more supported images, then adjust the pixel size slider. The active image preview updates at a capped resolution so you can choose the strength without processing the full file on every slider move.
When the preview looks right, run the tool to export full-resolution pixelated files. One image downloads directly; multiple successful outputs can be packaged into a ZIP file generated locally in your browser.
Supported formats and scope
This release accepts JPEG, PNG, and static WebP images. GIF, SVG, HEIC, HEIF, AVIF, TIFF, BMP, APNG, animated WebP, and unknown formats are rejected instead of silently converting one animation frame.
This MVP pixelates the entire image. Selective rectangles, brush tools, face detection, license plate detection, OCR-based censoring, and AI detection are not included.
Privacy and safety note
Images are pixelated locally in your browser for this tool. NexKit does not upload selected images, generated image blobs, source filenames, or image contents to a server for this workflow.
Canvas re-encoding usually removes original EXIF, GPS, ICC, and other metadata. Pixelation visually obscures details, but it should not be treated as secure redaction for highly sensitive text, IDs, passwords, QR codes, or financial data.
Frequently Asked Questions
Are my images uploaded?
No. Pixelate Image processes supported images locally in your browser. The selected files and generated outputs are not uploaded to NexKit servers by this tool.
Which image formats are supported?
This MVP supports JPEG, PNG, and static WebP images. GIF, SVG, HEIC, AVIF, TIFF, BMP, APNG, animated WebP, and unknown formats are rejected.
Does pixelation change image dimensions?
No. Pixelate Image keeps the browser-decoded width and height unchanged. It does not resize, crop, stretch, pad, or rotate images.
Can I pixelate multiple images?
Yes. One shared pixel size is applied to all selected images, and successful outputs can be downloaded one by one or together as a ZIP.
Does the output keep the original format?
Yes. JPEG stays JPEG, PNG stays PNG, and WebP stays WebP when the browser supports Canvas encoding for that format.
Is transparency preserved?
Yes. Transparent PNG and WebP pixels remain transparent where the browser Canvas workflow supports alpha output.
Can I pixelate only part of an image?
No. This MVP pixelates the whole image. Selective rectangle pixelation and brush tools are reserved for future work.
Is pixelation secure redaction?
No. Pixelation can visually obscure detail, but it is not secure redaction for highly sensitive text, identity documents, passwords, QR codes, or financial information.
Does this preserve EXIF metadata?
No. Canvas re-encoding usually removes original EXIF, GPS, ICC, and other metadata. The output is a newly encoded pixelated image.