Compress a JPG to 1 MB and keep it full size
Phone cameras save photos at 3 to 12 MB each, and a lot of places won't accept that. Forums, help desk and support ticket systems, school and job portals, visa and permit applications, online stores, classified sites, and many content management systems cap uploads at 1 MB. The good news is that 1 MB is a large budget. Most photos fit at their full resolution with only a small drop in JPG quality, so the result looks the same as the original on any screen and still prints well.
The tool runs entirely in your browser. Photos are never uploaded, which also makes it fast, even with a whole folder of images.
How to use it
- Choose one or more images, or drop them onto the box. JPG, PNG, WebP, GIF, BMP, and AVIF all work, and the result is always a JPG.
- Keep the 1 MB target, choose 500 KB, 2 MB, or 3 MB, or type any size in MB.
- Leave Longest side on "No limit" to keep full resolution. Set a limit only if the destination also caps pixel size.
- Check the result with Hold to compare. Each card also shows the largest sharp print size at 300 DPI.
- Download each photo, or save the whole batch as one ZIP.
From a 5 MB phone photo to 1 MB
Phones save JPGs at very high quality settings, and HEIC-to-JPG exports are often even larger. That extra quality stores detail your eye can't see. Lowering the quality from the high 90s to around 80 usually cuts the file by 60 to 80 percent with no visible change. So a 12-megapixel photo (4032 × 3024) often fits under 1 MB at full resolution. Very busy scenes, like foliage, gravel, or crowds, may need a small resize, and the tool takes care of that automatically.
| Original | Typical result at 1 MB | Prints sharply at 300 DPI up to |
|---|---|---|
| 12 MP phone photo, everyday scene | Full 4032 × 3024 at high quality | About 13 × 10 in |
| 12 MP photo, very detailed scene | Around 3,000 to 3,600 px wide | About 10 × 8 in |
| 24 MP camera photo | Around 3,500 to 4,500 px wide | About 12 × 9 to 15 × 10 in |
| Scanned document page at 300 DPI | Full size, often in black and white | Full page |
These are rough figures. The tool encodes and measures each image instead of guessing, and the card shows the exact result.
How the compressor works
First the tool checks whether the image fits at full size with high quality. If it does, it searches for the highest quality setting that still fits, up to 95%. If it doesn't, it reduces the dimensions just enough to fit. The What matters most setting decides how far quality can drop before it resizes:
- Balanced keeps quality at 75% or above, which is visually lossless for most photos at normal size.
- Sharpness keeps quality at 88% or above, for prints, zooming, and photos you'll edit later.
- Dimensions never resizes unless it has to, and lowers quality instead. Use it when the pixel size matters more than fine detail.
MB vs. MiB
"1 MB" can mean 1,000,000 bytes or 1,048,576 bytes. Windows File Explorer uses the larger number but still labels it MB. macOS and most websites use the smaller one. The default setting keeps files under 1,000,000 bytes, so they pass either way. Switch to 1,048,576 only if you know the destination measures that way and you want the extra 48 KB.
Tips
- Batch a whole album. Drop in dozens of photos at once and download them as one ZIP. They're processed one after another on your own device.
- Use a smaller target for the web. 1 MB is fine for uploads and archives, but a web page image usually loads faster at 100 to 300 KB with a longest side of 1,600 to 2,048 px.
- Keep the original for printing large. The print size on each card tells you whether the compressed copy is enough for the print you have in mind.
Frequently asked questions
Will compressing to 1 MB make my photo look worse?
Usually not in any way you can see. At 1 MB, most photos keep their full resolution and a high quality setting. Use "Hold to compare" and zoom in to check the details you care about.
Are my photos uploaded?
No. The whole process happens in your browser, and nothing is sent anywhere. The tool keeps working if you go offline after the page loads.
Can I compress HEIC photos from an iPhone?
In Safari, yes. HEIC files open and are saved as JPG. Other browsers can't decode HEIC, so convert the photo to JPG first or set the iPhone camera to "Most Compatible."
My photo is already under 1 MB. What happens?
A JPG under the target is kept exactly as is, unless you asked for an exact size, a longest-side limit it exceeds, or black and white. Recompressing it would only lose detail.
Does it remove EXIF and location data?
Yes. The compressed copy is rebuilt from pixels, so GPS location, camera settings, and other metadata aren't included. Sideways photos are rotated upright first.
Can I choose a size like 1.5 MB or 700 KB?
Yes. Type any value from 0.05 to 20 in the MB box. For example, 0.7 targets 700 KB and 1.5 targets 1.5 MB.