How to compress an image to 1 MB
- 1
Add your images
Drop JPG, PNG, WebP or HEIC files onto the compressor above, paste them, or click to browse. Mixed formats are fine.
- 2
1 MB is preset
Every file is compressed to land at or just under 1 MB. You can switch to another size, or a percentage to reduce by.
- 3
Compress
Click Compress. Each image keeps its format and, for most formats, never leaves your browser.
- 4
Check and download
Check the new sizes, then download each file or all of them as a ZIP.
Which format keeps the most at 1 MB
The same 1 MB holds a different amount of detail depending on the format. Rough size of a detailed 3:2 photo at good quality:
| Format | A photo fits roughly | Good to know |
|---|---|---|
| JPG | ≈ 3,040 × 2,030 px (6 MP) | Accepted almost everywhere; the safe pick for forms |
| WebP | ≈ 3,460 × 2,310 px (8 MP) | More detail than JPG, if the site accepts WebP |
| HEIC | ≈ 3,760 × 2,500 px (9 MP) | iPhone photos; many forms don't accept it |
| AVIF | ≈ 3,870 × 2,580 px (10 MP) | Most efficient, least widely accepted |
| PNG | ≈ 1,550 × 1,030 px | Best for logos, screenshots and signatures, not photos |
Rough guide for detailed photos. Each file keeps its own format; convert first if the destination needs a specific one.
What 1 MB is typically for
- Attaching several photos to one email
- Websites and portals that cap uploads at 1 MB
- Sharing high-quality photos quickly
Limits vary by site and change over time; check the exact number where you're uploading.
Photo won't fit in 1 MB?
Crop before you compress
Every pixel you crop away is budget the subject keeps. For an ID photo, crop to head and shoulders first; for a document, crop to the page.
Photo saved as PNG? Make it a JPG
At 1 MB, a photo stored as PNG only fits around 1,550 × 1,030 px; as a JPG it fits around 3,040 × 2,030 px (6 MP).
Convert PNG to JPG →Form won't take HEIC?
iPhone photos are HEIC by default, and many upload forms reject it. Convert to JPG first, then compress to 1 MB.
Convert HEIC to JPG →Already under the limit?
Plenty of phone photos are already close to 1 MB. If yours is under it, upload it as it is; compressing further would only cost quality.
Other image sizes
1 MB for a specific format
Tips and numbers for one format at 1 MB.
Or compress images by level and set any size or percentage yourself.
Compress image to 1 MB: frequently asked questions
Any image, 1 MB, done.
Drop the file, keep the preset, download the result. No sign-up, no watermark.
- Most conversions never leave your device
- Cloud files deleted automatically
- No watermarks