Free Image Compressor
Shrink JPG, PNG, and WebP images right in your browser — no uploads, no watermarks, no signup.
Drop an image here or click to browse
JPG, PNG, WebP, GIF supported
Compress images without the hassle
Large image files slow down websites, eat mobile data, and bounce off email attachment limits. Utilo's free image compressor solves that in seconds: drop in a photo, pick a quality level, and download a dramatically smaller file. Most photos shrink by 60–80% with no visible difference, which means faster page loads, cheaper storage, and happier visitors.
Everything runs locally in your browser using the Canvas API. Unlike many online compressors, we never upload your pictures to a server — your private photos stay private. There are no accounts, no watermarks, and no daily limits. It works just as well on your phone as on your desktop, making it perfect for bloggers, sellers, students, and anyone who shares images online.
Pair it with the guide on how to compress images without losing quality to learn the 80% quality rule, when to choose WebP over JPG, and why resizing before compressing saves the most bytes.
How to use the image compressor
- Upload: drag and drop an image onto the box above, or click it to browse your files.
- Adjust: set the quality slider (80 is a great starting point), optionally resize, and choose JPG, PNG, or WebP output.
- Download: compare the before/after sizes, then hit the download button to save your compressed image.
Frequently asked questions
Will compressing reduce my image quality?
Lossy compression discards some data, but at quality settings of 75–85 the difference is virtually invisible while file size drops dramatically. For pixel-perfect graphics, use PNG output instead.
Which format should I choose: JPG, PNG, or WebP?
Use JPG for photographs, PNG when you need transparency or razor-sharp text and logos, and WebP when you want the smallest possible file — it beats JPG quality at the same size on all modern browsers.
Is there a file size limit?
There is no server-side limit because files never leave your browser. Extremely large images (50+ megapixels) may simply take longer to process on older phones.
Are my images uploaded anywhere?
No. Compression happens entirely on your device. Nothing is sent to Utilo or any third party.
What quality setting should I use?
Start at 80 for photos — it is the sweet spot for most web use. Drop to 60–70 for thumbnails, or keep 85+ for images where fine detail matters.