How to compress an image to 1 MB
- Add one or more photos. JPG, PNG, WebP and iPhone HEIC are all accepted.
- Keep the 1 MB target (1024 KB) or type another size.
- Click Compress and download each photo, or all of them at once.
Where a 1 MB limit is common
Many websites, forums, job sites and online forms limit images to 1 MB. Modern phones take photos of 3–8 MB, and iPhone HEIC files are often not accepted at all, so a quick conversion to a 1 MB JPG solves both problems.
Will my photo lose quality?
At 1 MB, usually not in any way you can see. A 12-megapixel photo saved at good JPG quality is around 1–2 MB, so only light compression is needed. The tool keeps the full resolution whenever possible and reduces it only if quality alone is not enough.
Example: an iPhone photo
A 4.2 MB HEIC photo becomes a 0.94 MB JPG at full 4032 × 3024 resolution. Side by side on a laptop screen, the two look identical.
Tips
- Batch your photos. Add a whole set at once; each is compressed to the target separately.
- PNG files become JPG when you set a target size, because JPG is far smaller for photos.
- Need exact pixel dimensions too? Use Resize Image first, then compress.
Frequently asked questions
Is 1 MB the same as 1000 KB?
Sites differ: some count 1 MB as 1000 KB, others as 1024 KB. The tool uses 1024; if a site still says the file is too big, set the target to 950 KB.
Can I convert HEIC to JPG at the same time?
Yes. HEIC photos are converted to JPG automatically while being compressed.
Are my photos uploaded?
No. Compression happens in your browser, and your photos stay on your device.
Is there a limit on how many photos?
No daily limit. Very large batches simply take a little longer.
Other sizes
More free tools
Last reviewed: 2026-11-10. Tools are provided as-is. Keep a copy of important originals. See our disclaimer.