Image tools · batch
The whole camera roll, at the size the form or the shop asked for. Set one target and every photo is worked to it in a single run. The metered converters count operations and minutes against you; this page does not count anything. One photo at a time is on the Compress image page.
For a folder of photos that all have to fit one KB limit: listings, form uploads, a whole shoot.
Pick your images
Set one target
Run and download the results
Drop images on the tray, or click to pick them
JPEG · PNG · WebP · tested with 100 files in one run · they stay on this device
JPG, PNG, WebP and iPhone HEIC photos work here.
Photos are processed one at a time. A JPEG already under the target is kept as its original and the result line says so.
Pick images to begin.
Each photo runs the same search as the single-photo tool: quality first, then quality and dimensions together when quality alone has no setting close enough to your target. Attempts are kept, not re-encoded, and the winner is printed on the result line with its quality and dimensions.
Output is JPEG, the format the exact-size search is measured on. A photo that cannot land under the target even at the smallest sensible size is returned at the closest size reached, and the result line says "closest reached" rather than pretending. One honest absence: AVIF is not offered in batch; our tests measured it at about 50 seconds a photo. The batch was tested with 100 files in one run; past that, the limit is your device's memory, not a rule of ours, and a file that fails is named on its own result line, never silently dropped.
Yes. Pick the target once and every image on the tray runs the same combined quality-and-size search as the Compress image page, the search that lands within a whisker of the number. Each photo gets its own result line with the size it reached.
In our tests, 25 images were converted in 22.1 seconds total, under a second a file on average. Exact-KB searches take a few tries per photo, so a batch of big photos takes a little longer; the page works through them one at a time and says where it is.
JPEG, PNG and WebP are read by the page's own codecs; most other formats your browser can display are read through the browser itself. Everything comes out as JPEG at your target size, like the single-photo page.
Nowhere. They are read into this page and processed in your browser. Watch the network panel while it works if you want to check.