Dimension cleanup before upload
Use it when the image is bigger in pixels than the final slot on a blog, marketplace or form.
Free Image Resizer Online
Resize images locally in your browser without sending files anywhere.
Files and text are processed locally in your browser. No upload. No signup.
Supports JPG, PNG and WebP. Limit: 10 files, 10 MB each.
Choose up to 10 images to resize locally.
How to use
- 1 Choose one or more JPG, PNG or WebP files from your device.
- 2 Set the target width, height and output format.
- 3 Keep aspect ratio locked if you want proportional resizing, then download the results.
Features
- Resize up to 10 images per batch.
- Keep aspect ratio for cleaner output.
- Export resized images as JPEG, PNG or WebP.
- Runs locally in your browser with no upload required.
Common use cases
Preparing article cover images
Shrinking screenshots before email
Generating cleaner dimensions for marketplaces and social previews
Example input and output
Original dimensions
Resize a blog cover image
cover.png — 2400 × 1600
Resized result
Result you can copy or download
cover.png — 1200 × 800
Resizing reduces pixel dimensions first, which is often the biggest practical win for publishing workflows.
When this tool is the right fit
Batch resizing repeated assets
It saves time when several screenshots or product images all need the same dimensions.
Layout control
It is a good fit when you want to prevent giant originals from causing unnecessary bandwidth or layout surprises.
Quick comparison
| If you need | Best choice | Alternative | Why |
|---|---|---|---|
| Smaller pixel dimensions | Image Resizer | Image Compressor | Resizing directly changes width and height, which often solves oversized uploads faster than compression alone. |
| Smaller file size with same dimensions | Image Compressor | Image Resizer | Compression is better when the dimensions are already correct but the file is still heavy. |
| A lighter web-specific format | PNG to WebP | Image Resizer | Convert format when dimensions are acceptable and delivery format is the main issue. |
Best format choice
When to use it
You need cleaner dimensions for screenshots or UI assets
PNG or WebP are usually strong choices.
When to use it
You are resizing photographic content for web delivery
JPEG or WebP often gives a smaller result.
Common mistakes
- Forgetting to keep the aspect ratio locked when only one dimension should change.
- Resizing to much larger dimensions than the final layout actually needs.
- Using PNG for every resized photo even when JPEG or WebP would be lighter.
FAQ
Can I resize multiple images at once?
Yes. The current tool supports batch resizing with a limit to keep browser performance stable.
Will my image keep its aspect ratio?
Yes. You can lock the aspect ratio when entering a new width or height.
Are resized images uploaded?
No. Resizing runs locally in your browser.
Which output formats are available?
You can download resized images in the same format as the original file.
Can I set custom dimensions for each image in a batch?
Batch resizing applies the same dimensions to all selected images.