Compress Image to 1 MB for free, privately
Upload forms often reject images above a fixed size, and 1 MB is a common limit for email, chat apps and upload portals with a 1 MB limit. This page is set up for it: the tool searches for the highest quality that still fits under 1 MB, and only makes the picture smaller in pixels if quality alone is not enough.
A 12-megapixel phone photo usually fits under 1 MB at full resolution and high quality. The target is set to 1000 KB, which fits a 1 MB limit however the site counts it. Everything runs in your browser with the mozjpeg and libwebp encoders, so your images are never uploaded.
How it works
- Add images: drop JPG, PNG or WebP files, click to choose them, or paste a screenshot.
- Pick Quality or Target size, and a format if you want to convert.
- Press Compress images. Each file shows its new size and how much it saved.
- Download images one by one, or all of them as a ZIP.
Compress an image to a specific size
- Image Compressor (all options)
- Reduce image size in KB (any size)
- Compress image to 10 KB
- Compress image to 15 KB
- Compress image to 20 KB
- Compress image to 30 KB
- Compress image to 40 KB
- Compress image to 50 KB
- Compress image to 100 KB
- Compress image to 150 KB
- Compress image to 200 KB
- Compress image to 300 KB
- Compress image to 500 KB
- 1 MB
- Compress image to 2 MB
Frequently asked questions
How do I compress a photo to 1 MB?
Add the photo and press Compress images. The target size is already 1 MB; change the number if your form asks for another limit. Each image shows its new size, and "Resized to fit" if the pixel size had to be reduced too.
Will the image look worse at 1 MB?
The tool keeps the highest quality that fits. Small photos and screenshots usually look unchanged; a large, detailed photo squeezed into 1 MB is also scaled down, which looks fine on screen but is not meant for printing.
How do I resize an image to 1 MB?
Resizing to 1 MB means making the file 1 MB or smaller, which is what this page does: add the image and press Compress images. If the form also gives a size in pixels or centimetres, set that first with the Image Resizer or Resize Image in cm, then bring the file under 1 MB here.
Can I compress several images at once?
Yes. Add as many as you like; each is compressed to the target on its own, and you can download them one by one or as a ZIP.
Are my images uploaded?
No. Compression runs in this page on your own device. Nothing is sent to a server.
Related tools
Encoders: mozjpeg, libwebp, oxipng (via jSquash) and libimagequant (GPL-3.0, WebAssembly build source). Licences: NOTICE.