100% Private

All conversion happens locally in your browser using the Canvas API. Nothing is uploaded to any server.

Batch Conversion

Drop dozens of images at once and convert them all in a single click.

Multiple Formats

Convert between WebP, AVIF, JPEG, and PNG with a single toggle.

Quality Control

Fine-tune output quality from 1–100% to balance file size and visual fidelity.

Resize Images

Set custom width and height per image with aspect-ratio locking.

Bulk Download

Download all converted images as a single ZIP file. No sign-up or rate limits.

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Are my images uploaded to a server?

No. Pixel Crunch converts images entirely in your browser using the HTML5 Canvas API. Your files never leave your device, making it ideal for sensitive or private images.

What image formats are supported?

You can convert from any browser-supported format (PNG, JPEG, BMP, SVG, AVIF, HEIF, GIF) to WebP, AVIF, JPEG, or PNG.

Is there a file size or quantity limit?

No hard limits — since processing happens on your device, the only constraint is your browser's available memory. Most users can comfortably convert hundreds of images in a session.

Why convert to WebP or AVIF?

WebP and AVIF offer significantly smaller file sizes than JPEG and PNG at comparable quality. WebP is supported by all modern browsers. AVIF offers even better compression but has slightly less browser support.

Does Pixel Crunch work offline?

Once the page is loaded, the converter works entirely offline since no server communication is needed.

Is Pixel Crunch really free?

Yes — no accounts, no premium tiers, no watermarks, no ads. Just a fast, private image converter.