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Bulk image resizer
Choose your photos and how to size them. They start set to fit inside 1280 × 1280 pixels; change it to what you need.
Works on your device. Nothing is uploaded.
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How to resize many photos at once
- Tap Choose photos and pick up to 50: JPG, PNG, WEBP or HEIC.
- Pick the Pixel size and type the width and height, or the percentage.
- If you need to, type a Maximum KB for each photo and pick the format.
- Tap Resize and download the photos one by one or in one ZIP.
The four ways to size
| Pixel size | A 4000 × 3000 photo, with 1280 × 1280 or 25% |
|---|---|
| Fit inside a width and height | 1280 × 960: the whole photo, same shape |
| A percentage of each photo (25%) | 1000 × 750 |
| Exactly this size, cropped to fill | 1280 × 1280: the middle square, the sides cut off |
| Exactly this size, whole photo with white edges | 1280 × 1280: the whole photo, white bands above and below |
Fit and percentage never make a photo bigger. The exact sizes do when a photo is smaller than the size asked for, which cannot add detail.
Common sizes
- 1080 pixels wide: the width Instagram shows posts at.
- 1280 or 1600 pixels on the long side: photos for email and messaging that stay sharp on any phone.
- 800 × 600 or 1024 × 768: older websites and online shop listings.
For exam and job forms
Forms usually ask for one photo at an exact size and KB range, such as 200 × 230 pixels and 20 to 50 KB. For that, use Resize photo: you place the crop on the face, and it can fill in the numbers for your exam.
Worked example
30 holiday photos of 4032 × 3024 pixels, with Fit inside 1600 × 1600 and a maximum of 300 KB: 30 JPGs of up to 1600 × 1200 pixels, each under 300 KB, in one ZIP named resized-photos.zip.
Questions people ask
- How many photos can I resize at once?
- Up to 50 at a time. For more, download the ZIP and do the next 50.
- Will resizing make my photos blurry?
- Making photos smaller keeps them sharp. Fit and percentage never enlarge a photo; an exact size bigger than a photo stretches it, which cannot add detail.
- Can I resize to an exact size without cutting anything off?
- Yes: choose Exactly this size, whole photo with white edges. The photo is fitted inside and white bands fill the rest.
- Can I also reduce the size in KB?
- Yes. Type a Maximum KB for each photo; each one gets the best quality under it.
- Are my photos uploaded?
- No. They are resized by your own browser, so they never leave your phone or computer.