Private

Image Compressor

Reduce JPG, PNG, and WebP file sizes up to 90% directly in your browser. Batch compress up to 20 images with full privacy.

Drop your images here, or browse files

Supports JPG, PNG, WebP, AVIF and HEIC • Max 25 MB per file • Up to 20 files at once

100% In-Browser Privacy

Check the size and format rules on the form you are filling. They can differ and change.

How Browser Image Compression Works

Large image files slow down website loading speeds, consume excessive mobile bandwidth, and frequently get rejected by online submission forms. Our client-side compressor strips unnecessary metadata and fine-tunes image entropy to give you the lowest possible file size. If your submission requires compiling multiple photos into a single document, assemble them with our image to PDF converter.

Customizable Quality

Fine-tune quality percentages or choose from quick presets to strike the ideal balance between sharpness and small byte footprint.

Sequential One-by-One Processing

Images are processed sequentially one at a time to ensure your computer or phone browser stays smooth and responsive without memory spikes.

Download All as ZIP

Once compression completes, grab your whole collection in one organized ZIP archive or download individual photos as needed.

Zero Server Uploads

Everything runs strictly in client memory. Your private photos are never transmitted to any third party or remote server.

Help & Answers

Frequently Asked Questions

Clear answers to common questions about resizing, file sizes, and device privacy.

PixelFit utilizes modern browser HTML5 Canvas and image encoding APIs natively on your computer or phone. Your pictures are decoded into memory, compressed according to your selected quality and resolution parameters, and re-encoded locally. At no point are your images transmitted across the network or saved to any cloud server.