Image tools · batch
A whole folder, one size out. Set a width, a height, or both, and every photo is resized in a single run, each keeping its own format and its own shape inside the frame. One photo at a time is the resize image page; if instead the folder has to fit one exact KB target, the batch compress page is next door.
For a folder that must come out at one size: listing photos for a shop, a shoot for a website, thumbnails for a catalogue.
Pick your images
Set the one size
Run and download the results
Drop images on the tray, or click to pick them
JPEG · PNG · WebP · tested with 50 files in one run · they stay on this device
JPG, PNG, WebP and iPhone HEIC photos work here.
One number is enough: a width alone sets every photo to that width, shapes kept. Both numbers mean every photo fits inside that frame. Each photo keeps its own format, and every result line prints the dimensions before and after.
Pick images to begin.
Each photo is decoded by the open-source jSquash codecs, redrawn at the size you set, and written back in its own format, one file at a time. It is the same engine as the single-photo resize page, run over the whole tray. The first run loads the image program (about 2 MB, one time only); the download is how we protect your privacy, because the work then happens on your device and your photos never leave it.
Resizing cannot add detail: a photo enlarged to the frame stays as soft as it was, and the result line prints the dimensions it reached either way. Hidden camera and location data (EXIF) does not survive re-encoding, which most people want, but if you need it kept, keep the originals. The batch was tested with 50 files in one run; past that, the limit is your device's memory, not a rule of ours.
Yes. Set the size once and every photo on the tray is resized to it: a width, a height, or both. With both numbers set, each photo fits inside that frame and keeps its own shape, so a mixed folder of wide and tall photos all come out inside the same frame.
No. Each photo keeps its own format: a JPG stays a JPG, a PNG stays a PNG. If you want the folder in a different format instead, the batch convert page is next door; if you want an exact KB target, the batch compress page.
It is enlarged to the size, and its result line says the dimensions it reached. Bigger is not sharper: no detail is added, here or anywhere.
No. The metered converters ration this job by minutes and operations; this page has no counter to hit, because the work runs on your device and costs this site nothing per photo.
Nowhere. They are read into this page and resized in your browser. Watch the network panel while it works if you want to check.