converteo.app

Compress Images

Reduce image file size while maintaining quality

Processed in your browser — 100% private
CompressionBalanced (75%)
Smaller fileBetter quality

Large images slow down websites, overload email attachments and eat up phone storage. Our image compressor shrinks JPG, PNG and WebP files by 40–80% with almost no visible quality loss — and it runs entirely in your browser. Nothing is uploaded, nothing is tracked, and there's no file count or size cap beyond what your device can handle.

How to compress images

  1. Drop your images into the window (JPG, PNG or WebP).
  2. Adjust the quality slider if you want finer control.
  3. Download each compressed image, or the full batch as a ZIP.

Supported formats

JPG (.jpg, .jpeg), PNG (.png), WebP (.webp). Output keeps the original format.

Why compress with converteo.app

  • Local processing — your images stay on your device.
  • Batch-friendly: compress hundreds of images in one pass.
  • Preserves EXIF metadata by default (you can strip it if you want).
  • Free, with no account, watermark or upload quota.

Image compression — Frequently asked questions

How much can I compress without noticeable quality loss?
For photos, quality 80–85% typically reduces file size by 60–70% with no visible difference. Below 60%, artefacts become visible on detailed areas.
Is PNG compression lossless?
Yes — PNG is always lossless. We re-encode PNG files to remove redundant metadata and optimize the palette, which typically saves 10–30% without any pixel change.
Are my images uploaded to a server?
No. Every compression happens locally in your browser using the Canvas API and modern codecs. No image ever leaves your device.
Can I compress RAW files (CR2, NEF, ARW)?
Not directly — RAW files must first be exported to JPG, PNG or WebP. Our tool then compresses them further.