Target pixel dimensions
Your image, at the size you need
Set a maximum width and height. The image is scaled to fit inside that box, aspect ratio kept, and never enlarged past its own resolution.
Chasing an upload limit instead? Resize to a file size →
Fit inside a box, not stretched into one
The width and height you set describe a box the image must fit inside. The larger side reaches the limit, the other stays proportional. Nothing is cropped and nothing is distorted, so a portrait photo stays a portrait photo.
If only one direction matters, such as a maximum width for a blog, fill that field and leave the other empty.
An image already smaller than your box is returned at its own size. Enlarging adds pixels without adding detail, and every upscaled photo looks softer than the original.
Common questions
Which dimensions should I pick?
- 1920 px for full-HD screens, blog headers, and anything meant to be viewed full width.
- 1280 px for in-article images: sharp on most screens at a third of the weight.
- 1080 px for social posts, which downscale everything to around this size anyway.
- 800 px for thumbnails, email, forum avatars, and forms with tight limits.
Is the aspect ratio preserved?
Always. Setting 1920 × 1920 on a 4000 × 3000 photo gives 1920 × 1440, not a square. This tool does not crop to a fixed ratio, because deciding what to leave out is yours to make in an editor.
Can I cap the file size too?
Yes, with the second row of controls. Dimensions are applied first, then the file is compressed to fit the size limit, and scaled down further only if the limit still cannot be met.
Does resizing lose quality?
Removing pixels is irreversible: a resized image never regains its detail. Quality is therefore spent first, down to a floor of 70. Past that floor, fewer pixels at usable quality read better than more pixels at ruined quality. On this page you are asking for specific dimensions, so those are applied before anything else.
What comes out?
A JPEG, at quality 92 when no size limit is set. Transparent areas become white, since JPEG has no transparency.
Are my files uploaded?
Never. Everything happens in your browser and nothing leaves the tab. See the privacy page.