Image Resizer
This image resizer changes image dimensions (width and height) in seconds. Batch files, keep filenames, and download results fast.
Upload one image or a full batch, resize to the exact dimensions you need, then download clean results ready for web, email, or print.
Use the image resizer below, then follow the sizing guide to get the exact dimensions without stretching or blur.
and deleted once the download link expires.
Table of contents
- What this tool does
- Best times to resize images
- Resize vs compress (quick comparison)
- Use cases (Website, Email, Ecommerce, Social)
- How to resize an image
- Best settings (dimensions, keep aspect ratio, format)
- Quality vs file size (mini guide)
- Common issues (and fixes)
- FAQ
- Related tools
- References
What this tool does
Images that are the wrong size cause real problems: slow pages, messy layouts, blurry scaling, and oversized uploads.
This image resizer changes width and height so your images fit exactly where they’re used (website banners, product photos, social posts, and email attachments).
Typical uses
- Resize images for website sections (hero, blog, product pages)
- Create platform-ready sizes for social media and ads
- Reduce oversized dimensions before uploading
- Batch resize a folder of images to consistent dimensions
Best times to resize images
Use an image resizer when:
- Your image is too large for your layout (example: 4000px wide photo on a 1200px page)
- Your website is scaling images down automatically (wasted bandwidth)
- You need exact dimensions for ads, banners, or marketplaces
- Multiple images must match the same size (consistent grid)
Be careful when resizing if:
- You are enlarging a small image (upscaling doesn’t create real detail)
- The image contains small text (resize carefully or text can blur)
- You need to keep aspect ratio (avoid stretching faces/logos)
Resize vs compress (quick comparison)
| Feature | Resize | Compress |
|---|---|---|
| What it changes | Dimensions (width/height) | File size (bytes) |
| Best for | Fit exact layouts and platform size rules | Reduce download time and upload size |
| Biggest impact | Stops oversized images from wasting bandwidth | Cuts weight without changing dimensions |
| Risk | Stretching or blur if you enlarge | Artifacts if quality is too low |
| Best workflow | Resize to final display size | Compress after resize for best results |
A simple rule that holds up in real use: resize first (to the real display size), then compress (to reduce file weight).
Use cases (Website, Ecommerce, Social, Email)
Website layouts
Websites often display images at fixed widths (example: 1200px hero, 800px blog image, 600px product image).
Resizing to the real display size prevents your site from serving a huge image and scaling it down.
Ecommerce product grids
If product thumbnails are inconsistent, the page looks messy. Resizing images to the same dimensions creates a clean grid.
Resize first, then compress for speed.
Social media and ads
Platforms have size rules. Resizing prevents awkward auto-crops and keeps text/logos positioned correctly.
Email attachments
Email often fails because the image is oversized. Resizing reduces dimensions and usually drops file size at the same time.
If you still need smaller files, compress after resizing.
How to resize an image
- Upload one or multiple files in the tool above.
- Set your target width and/or height.
- Choose whether to keep aspect ratio (recommended).
- Click Process.
- Download each resized file or download a ZIP (if enabled).
Batch resizing is the normal workflow for real-world use. This image resizer is built so the goal is: upload once, download once, done.
Best settings (dimensions, keep aspect ratio, format)
1) Keep aspect ratio (recommended)
Keeping aspect ratio prevents stretching. With aspect ratio on, changing width automatically adjusts height (or vice versa).
This is the safest way to resize photos, people, and logos without distortion.
2) Pick the right target size (don’t guess)
Resize to the size you actually display. Uploading a 5000px image to show it at 1200px wastes bandwidth.
A good image resizer fixes that in seconds.
Common website sizes (starting points)
- 1200px wide: hero / featured images
- 800px wide: blog content images
- 600px wide: product images / standard sections
- 300px wide: thumbnails (theme-dependent)
3) Don’t enlarge (recommended)
Keep “Don’t enlarge” enabled. Enlarging a small image does not create real detail and often looks soft.
If you need a larger graphic, start from a higher-resolution original.
4) Preserve original filename + ZIP download
For batches, preserve filenames so you can match files back to originals. ZIP download is the fastest workflow for bulk resizing.
5) Resize then compress (best workflow)
Resizing drops dimensions, which often drops file size. If you still need smaller files, compress after resizing.
Use: Image Compressor
6) Format tips after resizing
- Photos: keep as JPG, or convert to WEBP for faster web loading: JPG to WEBP
- Graphics/text/transparency: keep PNG (avoid JPG artifacts)
- Need compatibility: convert WEBP to JPG: WEBP to JPG
Dimensions vs file size (mini guide)
Fast website images (best default)
- Resize to 1200px wide for hero/featured images
- Resize to 800px wide for blog images
- Then compress if needed: Image Compressor
Product grids (consistent look)
- Pick one size (example: 1200×1200 or 1000×1000)
- Resize every product image to that exact size
- Compress after resizing for faster galleries
Social and ads (avoid awkward scaling)
- Resize to the platform requirement first
- Keep aspect ratio on to avoid stretching
- Export as JPG (photos) or PNG (text/logos)
Email attachments
- Resize to 1600px wide or less (usually plenty)
- If sending still fails, compress after resizing
Common issues (and fixes)
“My image looks stretched”
That happens when width and height don’t match the original aspect ratio.
Fix:
- Enable keep aspect ratio
- Change only width (or only height) and let the other value auto-adjust
“My resized image looks blurry”
Most common cause: you enlarged a smaller image.
Fix:
- Turn on Don’t enlarge
- Start from a higher-resolution original
“File size is still huge after resizing”
Resizing reduces pixels, but photos can still be heavy depending on format/quality.
Fix:
- Compress after resizing: Image Compressor
- Or convert JPG to WEBP for websites: JPG to WEBP
“My transparent PNG got a background”
That happens when converting formats. Resizing alone shouldn’t remove transparency, but JPG cannot store transparency.
Fix:
- Keep the file as PNG if you need transparency
- If you must use JPG, expect a solid background
Image resizer FAQ
What does an image resizer do?
An image resizer changes the width and height of an image so it fits a specific layout, platform, or file size goal.
Should I resize or compress first?
Resize first (to the real display size), then compress if you still need a smaller file. Use: Image Compressor
Will resizing reduce file size?
Usually yes, because fewer pixels means less data. But photos can still be large, so compress after resizing for the best result.
Can I resize multiple images at once?
Yes. Batch resizing is supported. If ZIP download is enabled, download everything in one click.
Does resizing make images better quality?
No. Resizing doesn’t add detail. Enlarging often looks softer. Start from a higher-resolution original if you need bigger output.
Is this image resizer free?
Yes. No signup is required.