PIXELS · PERCENT · SOCIAL SIZES · NO UPLOAD
Resize Images to Any Size
Set a width and height, a longest side or a percentage, or pick a social size. One photo or a whole folder, resized in a single pass with sharp, high-quality downscaling.
Choose a photo or a whole folder. The longest side starts at 1920 px; change it to any size.
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- No upload
- No sign-up
- No watermark
- No daily limit
- Works offline
How to resize an image
Open the images
Drop one image or a folder of them, paste a screenshot, or tap Open image. Every file keeps its own proportions unless you choose an exact size.
Choose the new size
Type a longest side, a width and height with the lock on or off, or a percentage. Or pick a preset such as 1080 × 1350 for a portrait post.
Save the result
Each file shows its new pixel size and file size. Save one, or save the batch as a zip with names like photo-1600x1200.
FEATURES
What this page does
Four ways to set a size
Original, longest side, exact width × height (fit, fill or stretch) and percentage. The same setting applies to every file in a batch.
Social sizes built in
Presets for 1080 × 1350 portrait posts, 1200 × 630 link previews, 1500 × 500 headers and 1280 × 720 video thumbnails.
Sharp downscaling
Large reductions happen in steps no bigger than half at a time, or with a Lanczos filter for big ratios, so fine detail doesn’t turn jagged.
Batch rename
Name pattern {name}-{w}x{h}-{n}, with a live example, so a folder of resized files stays sorted and easy to tell apart.
Fit, fill or stretch: choosing an exact size
An exact size such as 1080 × 1350 rarely matches a photo’s own shape. There are three honest ways to handle that, and each one suits a different job.
- Fit keeps the whole picture inside the box. Nothing is cut off; one side may come out smaller than you asked for.
- Fill covers the whole box and trims what sticks out, centered. Use it for posts and thumbnails that must be an exact size.
- Stretch forces the picture to the box and distorts it. It is there for the rare case that needs it, such as textures.
Common sizes for posts, previews and headers
Social networks change their recommendations from time to time, so treat these as good starting points and check the platform’s own help pages for anything critical. A larger upload is usually resized down by the platform, often with heavier compression than you would choose yourself.
| Use | Size (px) | Shape |
|---|---|---|
| Portrait feed post | 1080 × 1350 | 4:5 |
| Square post | 1080 × 1080 | 1:1 |
| Link preview card (Open Graph) | 1200 × 630 | about 1.9:1 |
| Profile header banner | 1500 × 500 | 3:1 |
| Video thumbnail | 1280 × 720 | 16:9 |
| Story or vertical video cover | 1080 × 1920 | 9:16 |
Making an image bigger
You can enlarge an image, but resizing can’t invent detail that was never captured. A 600-pixel photo stretched to 2400 pixels looks soft, and it now has sixteen times as many pixels to store, so the file grows with it. If a form or a printer demands a larger size, enlarge once, to exactly what is needed, and no further.
Phones and many cameras save photos far larger than most uses need. A recent phone photo can be 24 megapixels, about 5712 × 4284. For a web page, an email or a chat, a longest side between 1600 and 2400 pixels is usually plenty, and the file is a fraction of the size.
Is it really private?
Resizing a folder of photos here never sends them anywhere. Each worker decodes, scales and encodes one image at a time inside the tab, and the zip is assembled on your device.
Photos resized here also lose their EXIF data by default, including where they were taken. Product shots and listing photos are a common way a home address leaks.
You don't have to take our word for it. Three checks:
- Open your browser's developer tools, choose the Network tab, then open and save an image. No request carries your file.
- Open an image here once, then turn on airplane mode and run the same job again. It still works, because nothing needs a server.
- Read the page's response headers: its Content-Security-Policy lets it connect only to this site itself, so there is no outside host a file could go to.
Reference
| Size modes | Original, longest side, exact width × height (fit, fill, stretch), percentage |
|---|---|
| Presets | 1080 × 1350, 1080 × 1080, 1200 × 630, 1500 × 500, 1280 × 720, 1080 × 1920 |
| Opens | JPG, PNG, WebP, AVIF, GIF (first frame), BMP, ICO, SVG and TIFF; HEIC in Safari |
| Saves | The same format by default, or JPG, PNG or WebP |
| Large images | On iPhone and iPad a single canvas tops out at about 16.7 MP, so bigger photos are offered as a smaller copy or saved through a slower path |
| Batch | A whole folder, saved as a zip or straight into a folder in Chrome and Edge |
Frequently asked questions
How do I resize a photo without losing quality?
Make it smaller, not bigger, and save it once. Downscaling keeps a photo sharp when it is done in steps or with a good filter, which is what Image Studio does. Saving as PNG keeps every pixel of the result, at the cost of a bigger file.
Can I resize many images to the same size at once?
Yes. Open a folder or select many files, choose the size once, and every image is resized in parallel. Save them as a zip, or straight into a folder in Chrome and Edge.
What size should a photo be for Instagram?
A portrait post at 1080 × 1350 (4:5) shows the most of your photo in the feed. Square posts use 1080 × 1080. Pick the preset, choose Fill, and the photo is cropped from the center to fit exactly.
Does resizing change the file size?
Yes, a lot. Halving the width and height leaves a quarter of the pixels, so the file usually ends up around a quarter of the size or smaller. If you need a specific size in KB, use the compress-to-KB page.
Why does my resized photo look blurry?
Most often because it was enlarged. Check the original pixel size shown on the result card; if it was smaller than the target, the extra pixels have to be guessed. Use a smaller target, or start from a larger original.
Is there a limit on image size?
Computers handle very large photos. iPhones and iPads cap a single canvas at about 16.7 megapixels, so a bigger photo there is offered as a smaller copy first, with the full size saved through a slower path where possible.