How to use the Image Compressor
- Choose one or more images, or drag them onto the box.
- Pick your settings — quality, format and an optional maximum width.
- Check the new size next to each file.
- Download each image, or all of them as a ZIP.
What does this tool do?
The compressor re-encodes each image at the quality you choose. For photos, 70–80% quality usually cuts the file size by half or more while looking the same on screen. Setting a maximum width saves even more, because most phone photos are far larger than any screen needs.
PNG is lossless, so the quality slider can't shrink it much. For PNG photos, choose JPG or WebP output for big savings; keep PNG for logos and screenshots with sharp edges or transparency.
Why use it?
- Faster websites and emails.
- Fit attachments under upload limits.
- Batch compress dozens of photos at once.
- If an image is already well compressed, the original is kept — it never gets bigger.
Typical results
A 12-megapixel phone photo is usually 3–5 MB. Here's what different settings typically produce:
| Setting | Typical size | Visible difference |
|---|---|---|
| Original JPG | 4 MB | — |
| JPG, quality 80% | 1.2 MB | None on screen |
| JPG 80%, max width 2000 px | 450 KB | None on most screens |
| WebP 75%, max width 1600 px | 200 KB | Very slight on close inspection |
Accuracy and limits
- Results vary by image: detailed photos compress less than simple graphics.
- Re-compressing an already compressed JPG repeatedly gradually reduces quality, so keep your originals.
Privacy
Your files are processed entirely in your browser using built-in web technologies. They are not uploaded to our servers, and closing the page clears them from memory. There's no account to create and nothing to install.
Frequently asked questions
Are my photos uploaded?
No. Everything happens in your browser using the Canvas API. Your images never leave your device, which is why it works even on a slow connection.
What quality should I choose?
75–85% for photos you'll share online, 85–95% if you might print them, and around 60–70% when file size matters most.
Does compressing remove EXIF data?
Yes. Re-encoding drops metadata such as camera details and GPS location, which is also good for privacy.
Last reviewed by the M2Toolkit team.