How to use it
- Drop one or more images here.
- Pick a mode: exact size, percentage, or longest side at most.
- Enter the width or height (leave one empty to keep the proportions).
- Click Resize. One image downloads directly; several download as a ZIP.
Three ways to resize
- Exact size (pixels). Type a width, a height or both. If you fill in only one, the other is calculated so the image keeps its proportions. Filling in both forces that exact size, which can stretch the picture if the ratio differs.
- Percentage. Scale everything by the same factor, from 5% to 200%. 50% halves both the width and the height, which makes the image a quarter of the pixel count.
- Longest side at most. Ideal for batches with mixed portrait and landscape photos. Enter, say, 1920, and every image is scaled so its longest edge is no more than 1920 px. Images that are already smaller are left as they are.
Whichever mode you use, the tool shows the list of files before you start, so you can remove any you added by mistake. Resizing uses high-quality smoothing, so downscaled photos stay crisp rather than jagged.
The output keeps the original format: JPG stays JPG, PNG stays PNG and WebP stays WebP. Your images are resized locally in your browser and never uploaded.
Common sizes
| Use | Typical size (px) |
|---|---|
| Instagram square post | 1080 × 1080 |
| Instagram portrait post | 1080 × 1350 |
| Instagram or TikTok story | 1080 × 1920 |
| Facebook shared image | 1200 × 630 |
| YouTube thumbnail | 1280 × 720 |
| Website hero image | 1920 wide |
| Blog or email image | 600–1200 wide |
| Full HD screen | 1920 × 1080 |
Platforms change their recommendations from time to time, so check the current help pages of the site you post to.
Social media sizes in one click
The Social media presets give you 25 ready sizes: Instagram posts (1080×1080, 1080×1350, 1080×566), Stories and Reels (1080×1920), TikTok, Facebook cover (1640×624), post and event, X header (1500×500), LinkedIn banner (1584×396), YouTube thumbnail (1280×720) and channel banner, Pinterest, WhatsApp profile, plus Full HD and 4K.
If your photo's ratio differs, Fill crops the edges and Fit pads it with a solid or blurred background. Each platform also has its own page, for example Instagram or YouTube thumbnails.
Pixels, inches and print size
On screen only pixels matter. For printing, divide the pixel size by the printer's resolution (DPI). At 300 DPI, which is standard for photo prints:
- a 4 × 6 in print needs about 1200 × 1800 px,
- a 5 × 7 in print needs about 1500 × 2100 px,
- an 8 × 10 in print needs about 2400 × 3000 px.
For a quick check of an existing image: a 3000 × 2000 px photo prints sharply at up to 10 × 6.7 in at 300 DPI, or larger if it will be viewed from a distance, like a poster.
Enlarging a small image does not add detail. Going above 100% makes the file bigger, but the picture will look soft. If you need a sharp large print, start from the largest original you have.
Resize or compress?
Resizing changes the number of pixels. Compressing changes how efficiently those pixels are stored. They work best together:
- Resize the image to the size it will actually be shown at.
- Then compress it to the quality you need.
A 4000 × 3000 phone photo resized to 1600 px wide is often 80–90% smaller before any extra compression. If you only need to meet a file size limit, the compressor's target-size mode can do both steps for you automatically.
To cut out part of the picture instead of scaling all of it, use Crop image. Cropping changes the framing and the aspect ratio; resizing keeps the whole picture and only changes how many pixels it has.
Aspect ratio matters. A 4:3 phone photo resized to 1080 × 1080 will look squashed. Crop it to square first, then resize, or enter only the width and let the height follow.
Frequently asked questions
Will resizing distort my photo?
Not if you enter only the width or only the height; the other side is calculated automatically. Entering both values can stretch the image when the ratio differs from the original.
Can I resize many images at once?
Yes. Drop several files, choose the settings once, and all of them are resized and downloaded in a ZIP.
Does resizing reduce the file size?
Making an image smaller in pixels almost always makes the file much smaller. Making it larger increases the file size without adding detail.
Are my images uploaded?
No. Resizing happens on your device in the browser; nothing is sent to a server.
What size should a photo be for email?
Around 1200–1600 px on the longest side is plenty for viewing on screens and keeps each photo well under 1 MB.
Last updated: November 13, 2026