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.
click to choose · or paste from the clipboard
Nothing here is uploaded. Disconnect from the internet and the page keeps working.
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 rather than 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.