Tools / Image Resizer and Compressor
Image Resizer and Compressor
Resize and compress images without uploading them. Set a width or height, keep or drop the aspect ratio, export as WebP, JPEG or PNG, and compare the file size before and after.
PNG, JPEG, WebP, GIF or BMP up to 15.0 MB. The file never leaves your device — resizing runs on a canvas in this tab.
Frequently asked questions
Is my image uploaded anywhere?
No. The file is decoded and redrawn on a canvas inside this tab. Nothing is sent to a server, which is why it also works offline once the page has loaded.
Which formats can I use?
PNG, JPEG, WebP, GIF and BMP go in. WebP, JPEG and PNG come out. WebP usually gives the smallest file at the same visual quality, so it is the default.
What does the quality slider do?
It sets the encoder quality for WebP and JPEG, from 10 to 100. PNG is lossless and ignores the setting, so the slider is hidden when PNG is selected.
Why did my file get bigger?
Re-encoding an already compressed image at a high quality can add bytes, and PNG output from a photo is often larger than the JPEG you started with. The before and after sizes are shown so you can spot it.
Is there a size limit?
Input is capped at 15 MB and output edges at 8000 pixels, because larger canvases start failing on mobile browsers.
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