Upload an image, set the exact width and height you need, and download the resized result — with aspect ratio locked by default so one dimension derives the other, or unlocked if you deliberately need to stretch it.
Resized locally, the image never uploads
Drop it in or click to choose a file.
Type a width or height — the other follows automatically if the aspect ratio is locked.
The resized image downloads as a PNG.
Typing a width and letting the height stretch to match — or vice versa — is what people actually want most of the time; an unintentionally squashed or stretched image is a common mistake with resize tools that treat width and height as fully independent. The lock is on by default and can be turned off for the deliberate cases where a specific, non-proportional size is genuinely needed.
Usually, yes — fewer pixels generally means a smaller file — but this tool is about dimensions, not compression ratio. For controlling file size directly, the Image Compressor tool is the better fit.
Yes, though enlarging beyond the original resolution will look softer — there is no new detail to add.
No. It is resized entirely in your browser using the Canvas API.
Generate cryptographically random UUID v4 or time-ordered UUID v7, in bulk.
Encode and decode Base64 with correct UTF-8 handling, including the URL-safe alphabet.
Generate ULIDs — sortable by creation time like UUID v7, but Crockford Base32 instead of hex.