Compress an image
Make an image smaller without an obvious drop in quality.
Drop your file here
It is processed on your device — nothing is uploaded.
Where the size goes
A photograph straight from a phone is typically 3–8 MB, and almost none of that is detail you can see. Camera software saves at a quality level chosen for editing headroom, not for sending. Dropping to quality 75 routinely removes 70–80% of the file with no visible difference at normal viewing size.
That is the whole trade here, and it is worth understanding rather than guessing at: JPEG quality is not a percentage of visual fidelity. The curve is steep at the top and flat in the middle. Between 100 and 85 you throw away a great deal of data and see nothing. Between 60 and 40 you throw away less and start to see it.
Where the quality actually shows
Compression artefacts appear first in two places: smooth gradients such as skies, which develop faint banding, and hard edges against flat colour, which grow a halo. Photographs of people and landscapes hide artefacts well. Screenshots containing text are the worst case, which is why a screenshot should be a PNG rather than a compressed JPEG.
Choosing a format
Leaving the format as "same" keeps what you started with. Choosing WebP typically saves another 25–35% over JPEG at equivalent quality and is supported by every current browser. AVIF saves more still, at the cost of slower encoding and patchier support outside browsers.
Batches
Drop in up to thirty images and you get a zip back. There is no daily cap and no account, because the work happens in your browser rather than on a server we have to pay for.
If you need an exact size
Quality settings cannot hit a specific number. When a form demands one, compress to an exact size searches for the setting that lands under your limit.
Common questions
What quality should I use?
75 is the usual sweet spot for photographs. Above 85 you are storing data nobody can see; below 60 artefacts start to show.
Will it look worse?
At sensible settings, not noticeably on a photograph. Screenshots with text degrade much more visibly — keep those as PNG.
Can I compress several at once?
Yes, up to thirty per batch, returned as a zip. No daily limit.
Is WebP worth choosing?
Usually. It saves another 25–35% over JPEG at the same quality and every current browser supports it.
Does compression happen on your servers?
No. It runs in your browser, so nothing is uploaded.
Can I get back to the original quality?
No. Compression is lossy and permanent, so keep your originals.