Free Image Resizer: Pixels, cm, mm or Inches
Set an exact size or pick a preset. Crop and rotate in the same place. Resize up to 30 images at once, privately in your browser.
- Private: no upload
- Free, no sign-up
- Bulk up to 30 images
Drop images here, or tap to select
JPG, PNG, WebP, AVIF, HEIC (iPhone), GIF, BMP, SVG. Up to 30 files, 25 MB each.
Choose filesResize images to any size
Every platform and form wants a different image size. This image resizer lets you set an exact width and height in pixels, millimetres, centimetres or inches, or pick a ready-made preset for Instagram, YouTube, Facebook, LinkedIn and more. You can crop and rotate in the same place.
You decide how the image fits: fill and crop, fit inside with a background color, or stretch. You can also set a maximum file size, so one tool handles both dimensions and weight.
What next? After resizing, shrink the file with the image compressor. For ID and visa sizes in millimetres, the passport photo maker is faster. Need another format? Use the image converter.
How to resize an image online
- 1
Add your images
Drop up to 30 images or tap to choose them.
- 2
Pick a size
Open Resize and choose a preset, or enter your own width and height. Fill only one box to keep the proportions.
- 3
Choose how it fits
Fill and crop, fit inside with a fill color, or stretch to the exact size.
- 4
Download
Save the resized images one by one or as a ZIP.
Print sizes in pixels at 300 DPI
Pixels = millimetres × DPI ÷ 25.4, or inches × DPI. Use these values when a form or print shop gives you a size in mm or inches.
| Size | Pixels at 300 DPI |
|---|---|
| 35 × 45 mm | 413 × 531 px |
| 2 × 2 in | 600 × 600 px |
| 4 × 6 in | 1200 × 1800 px |
| 5 × 7 in | 1500 × 2100 px |
| A4 (210 × 297 mm) | 2480 × 3508 px |
What you get with the image resizer
Pixels, mm, cm and inches
Enter print sizes with your DPI, or exact pixel dimensions for web use.
Social media presets
Instagram post and story, YouTube thumbnail, Facebook cover, LinkedIn banner, X header and more. Platforms change their sizes, so check the latest numbers if it matters.
Fit modes
Fill and crop, fit inside with a fill color, or stretch.
Size and format in one place
Set a maximum file size or change the format while you resize.
Bulk processing
Add up to 30 images at once, then download one, several or all of them as a ZIP file.
Undo and apply to all
Made a mistake? Undo it. Happy with your settings? Apply them to every image with one click.
All popular formats
Works with JPG, PNG, WebP, AVIF, HEIC, GIF, BMP and SVG files up to 25 MB each.
Private by design
Your images are processed by code running in your own browser. They are not uploaded to our servers. You can check this yourself: open your browser’s Network tab while you work.
Fast, even offline-fast
Processing happens on your own device, so there is no upload wait and no queue. Settings update the results instantly.
Free, no sign-up
No watermarks, no account and no daily limit.
All popular formats
Works with JPG, PNG, WebP, AVIF, HEIC, GIF, BMP and SVG files up to 25 MB each.
Common ways people use it
Social media
Get the right dimensions for posts, stories, covers and thumbnails.
Website images
Resize hero images and product photos to the exact size your layout needs.
Print
Convert millimetres or inches to pixels at 150 or 300 DPI.
Forms and applications
Match the size a portal asks for.
Frequently asked questions
+How do I resize an image without losing quality?
Make the image smaller rather than larger, and keep the quality high. Shrinking keeps an image sharp, while enlarging always softens detail.
+How do I resize an image to a size in pixels?
Open Resize, set the unit to px and enter the width and height, or pick a preset. Leave one box empty to keep the original proportions.
+How do I resize an image in cm or mm?
Choose cm or mm as the unit and set the DPI (300 is common for print). The tool shows the resulting size in pixels.
+Can I resize several images at once?
Yes. Add up to 30 images, set the size for one, then use “Apply to all images”.
+Are my images uploaded?
No. Resizing runs in your browser, so your files stay on your device.
More free image tools
Image Compressor
Make photos and graphics smaller without ruining them. Drop up to 30 images, check the result, then download. Private: nothing is uploaded.
Passport Photo Maker
Crop a photo to a passport, visa or ID size, set the background and file size, and download a single photo or a print-ready sheet. Nothing is uploaded. Always check the official rules for your document.
Compress Image to 100KB
The 100 KB limit is already set. Drop your image and download. Need a different size? Switch the limit with one tap.
Image Converter
Pick the format you need and download. Convert up to 30 images at once, privately in your browser. HEIC from iPhones works too.
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