Resize images online to exact pixel dimensions or a percentage, with aspect-ratio lock and social-media presets. Fast, private and completely free.
The Image Resizer changes an image's dimensions by exact pixels or by percentage, right inside your browser. Whether you need to shrink a phone photo for email, force a picture to a precise 4x6 inch print size, or fit an image into a social media post's exact pixel requirements, this resize image online tool handles JPG, PNG and WebP without installing anything.
Because nothing leaves your device, resizing stays private and fast even for large batches. The aspect-ratio lock stops accidental stretching, and presets for common social media image sizes save you looking up dimensions for Instagram, Facebook or LinkedIn every time you need a new post image.
Switch between exact pixel dimensions and percentage scaling without reopening the tool. This covers both print-size requirements and quick shrink-to-fit jobs.
Locking proportions means typing only one dimension is enough. Photos never come out squashed or stretched by mistake.
Common platform dimensions are one click away, saving time spent searching for the current recommended image size.
Resizing happens locally using the browser's own canvas engine, so there is no round trip to a server that might recompress your file.
JPG, PNG and WebP images are supported. Very large source photos (many megapixels) may take a moment longer to process since resizing runs on your device's own processor rather than a remote server.
Reducing size preserves detail well. Enlarging an image beyond roughly double its original resolution starts to soften edges, since no new detail can be invented — for larger upscales, the Image Enhancer is a better starting point.
Desktop software like Photoshop can resize images too, but requires installation and a purchase. This tool opens instantly in any browser, needs no account, and produces the same pixel-accurate output for everyday resizing tasks.
If the downloaded image looks a different size than expected, check whether Pixels or Percent mode is active — the two use different reference numbers and it is easy to leave the wrong one selected.
Scaling down stays sharp. Scaling far above the original resolution always softens detail, so upscale by no more than about 200% — or use the Image Enhancer for a cleaner result.
Leave the aspect-ratio lock enabled and type only the width or only the height; the other value is calculated automatically so the photo never looks stretched.
Yes. Image Resizer on Klipza is completely free with no account, no subscription and no watermark on your files, and there is no daily usage limit.
Processing happens locally in your browser wherever technically possible, so your files are not uploaded to a server, stored or shared with third parties.
Yes. It is fully responsive and runs in any modern browser on Android, iPhone, iPad, Windows and macOS — nothing to install.