Compress an image online — target a file size, no upload
An upload form says the photo must be under 200 KB. A website is slow because every image is 4 MB. Pick a target size and Cutmoor searches for the highest quality that fits, reducing the dimensions only when quality alone cannot get there. The file never leaves your device.
From file to download, with no upload bar
- 01Choose the image
Drop a JPG, PNG, WebP, HEIC, AVIF, GIF, BMP, or SVG file. Cutmoor reads its dimensions and size locally.
- 02Set a target
Pick a common limit such as 200 KB or 1 MB, or type your own. You can also cap the long edge at 2560, 1920, 1280, or 800 px.
- 03Compress and download
The browser encodes the image at several quality levels and keeps the best one under your target. If it has to reduce the dimensions, it tells you exactly what it did.
Compress image: common questions
How does target-size compression work?
For JPG and WebP, Cutmoor encodes the image repeatedly and binary-searches the quality setting until the file is just under your target. If even the lowest quality is still too large, it reduces the dimensions in steps. PNG is lossless, so it can only reach a target by reducing dimensions.
Will compressing an image make it blurry?
A smaller file needs fewer bits, so some detail has to go. The tool protects quality by keeping the dimensions and lowering compression strength first. If the target is extremely small, reducing the long edge usually looks better than crushing the quality to 30 percent. Compare the before and after previews before you download.
Should I compress a PNG or convert it to JPG?
PNG is the right choice for screenshots, logos, and images with transparency. For photographs, JPG or WebP reaches a much smaller size at the same visible quality. If the PNG has no transparency, converting it to JPG first is often the single biggest saving.
Does Cutmoor upload my image?
No. The image is decoded and re-encoded by your browser using the canvas API. There is no upload endpoint, no account, and no server-side copy. You can disconnect from the internet after the page loads and the tool still works.
What is a realistic target size?
A 1080 px photo usually looks clean between 150 and 400 KB. A 200 KB target is common for job portals and email. Website hero images often work at 100 to 250 KB when capped at 1600 px wide. Below about 50 KB, a full-resolution photo will show compression artifacts.