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Compress Image to 800 KB
Compress an image to 800 KB or less in your browser — free, unlimited, and your file never leaves your device.
No account · No daily limit · No card · Nothing to cancel
Full pixel size keptRe-encodes only if the file gets smaller Nothing is ever made bigger
The encoder works at a quality that does not show, and stops there. You do not pick a number.Your images are processed by your own browser. Nothing is uploaded, there is no account, and there is no daily limit.
Compress to another size
Every limit is different. These run on the same engine, so switching is instant.
At 800 KB you are hardly squeezing anything
800 KB is useful when you are sending a photo as a file rather than as a photo. Messaging apps treat the two differently: sent as an image, the app re-encodes it again and the person receives something softer than what you started with.
Sending it as a document or attachment avoids that second compression, and then the size you choose is the size they get. This is a good size to choose for that.
Generous caps, and when you meet them
- Sending photographs as attachments rather than inline images
- A platform with an 800 KB per-file limit
- Sharing work-in-progress pictures that must arrive intact
- Situations where the receiving app would otherwise compress again
Why a limit would sit this high
A ceiling of several hundred kilobytes is a courtesy limit, not a constraint. Print services, estate agents and camera-friendly platforms set it to stop someone uploading a 40 MB file over a phone connection, while still accepting a photograph with enough detail to work with. Files in this range are usually re-encoded once at high quality rather than compressed in any meaningful sense, and the metadata a camera writes into them — lens, location, timestamps, an embedded preview — is a large part of what disappears.
The result at 800 KB
Effectively the original in the recipient's hands, because nothing re-encodes it on the way. The 800 KB is nearly all picture.
Expect the result to be visually indistinguishable from your original. If your file is already under 800 KB, the tool hands it straight back rather than re-encoding it and losing quality for nothing.
How it works
- Add your imageDrop it above, or choose a file from your device.
- Choose howSmallest file keeps the best quality and takes no number, or set the exact size your form asks for. Nothing is compressed until you press Compress.
- Compress and downloadPress Compress, and the finished size is shown before you save, so there are no surprises.
Questions
How do I compress an image to 800 KB?
Drop your image into the box above, check that the target reads 800 KB, and press Compress. The finished size is shown before you download, so you can see that it fits before you save it.
Is 800 KB going to noticeably degrade my photo?
No. At this size you are inside the range where a single high-quality re-encode is invisible at normal viewing size, and much of what you save is camera metadata rather than picture detail.
Why compress at all if the limit is this generous?
Because the limit is still a limit. A modern phone photo can exceed 800 KB easily, and platforms that state a maximum reject anything above it rather than shrinking it for you.
Will compressing to 800 KB ruin the quality?
Effectively the original in the recipient's hands, because nothing re-encodes it on the way. The 800 KB is nearly all picture.
Do chat apps that send files keep 800 KB images intact?
When a file is sent as a document rather than as a photo, most apps pass it through untouched. That is why a slightly larger size is worth using: what arrives is exactly what you sent.
Which format should I choose — JPG, PNG or WebP?
Photos: JPG or WebP, because they are built for photographs. Logos, signatures, screenshots and anything with flat colour: PNG, so the sharp edges stay sharp. If you are not sure, leave it on “keep original format”.
What does “800 KB or less” mean here?
The tool aims just below your number, never above it. If the image is already smaller than 800 KB it is left untouched rather than re-encoded and degraded.
Is this free? What is the catch?
There isn’t one. The compression runs inside your browser using technology already built in, so there is no server doing the work and nothing to charge for. This page shows ads, and that is the whole business model.
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