Resize images in bulk, in your browser
Set a maximum width or height, an exact size, or a percentage, then resize an entire folder of photos at once and download the batch as a ZIP.
Or click to choose them. Pasting from the clipboard works too, and so does a whole batch at once.
Nothing here is uploaded. See how the page enforces it.
Three ways to resize
- Fit inside. The safe default. Give a maximum width and/or height; each image is scaled down to fit, keeping its aspect ratio. Images already smaller than the limit are left alone.
- Exact size. Forces every image to precise pixel dimensions. Use it when a platform demands one size and you do not mind slight stretching.
- Percentage. Scales everything by the same factor, useful for halving a folder of screenshots.
Downscaling is done in successive halving steps, not one jump, which avoids the aliasing you get from a naive single-pass resize. Fine detail and text stay noticeably sharper.
Common target sizes
| Where it goes | Suggested size |
|---|---|
| Full-width website hero | 1920 px wide |
| Blog post body image | 1200 px wide |
| Online shop product photo | 1000–1600 px square |
| Email newsletter | 600 px wide |
| Marketplace listing thumbnail | 800 px wide |
| Profile picture | 400 px square |
A 12-megapixel phone photo is around 4000 px across. Displaying it in a 1200 px column means the visitor downloads roughly eleven times more data than they can see. Resizing before upload is usually the single biggest page-speed win available.
Questions
Does resizing keep the aspect ratio?
In "fit inside" and "percentage" modes, yes, always. "Exact size" deliberately does not, because that mode exists for platforms that demand precise dimensions.
Can I enlarge a small image?
Tick "allow upscaling". Be aware that no tool can add detail that was never captured. Enlarging past the original size produces a softer picture, not a sharper one.
How many images can I resize at once?
As many as your device can hold in memory. There is no artificial cap and no paywall after N files.
Are the originals modified?
Never. Your files are read, never written. The results are new files you download; the originals on your disk are untouched.