Image Resizer
Resize any image by pixels or percentage in your browser. Your files never leave your device. Free, private, no upload required.
No uploads. No account. Free to use.
Set pixels or a percentage, then download the resized image.
Drop an image
Nothing is uploaded. Processing stays on this device.
Opens Google’s picker with toolswithoutai.com pre-filled.
- Files never leave your device
- Runs entirely in your browser
- No signup required
- Free
What is Image Resizer?
Image Resizer is a free private tool that changes the dimensions of JPG, PNG, WebP and similar images by exact pixel values or percentage. All resizing happens on the HTML5 canvas inside your browser so the original file never leaves your device and is never uploaded to any server.
Key features
- Resize by exact pixels or percentage
- Maintain aspect ratio option
- Supports JPG, PNG, WebP and common formats
- 100% client-side canvas processing
- No upload, no account, no watermark
- Instant live preview
How to use it
- Open the Image Resizer tool.
- Drop or select your image file.
- Enter the desired width, height, or scale percentage.
- Optionally lock aspect ratio.
- Click Resize and download the new image. Everything runs locally.
When to use it
Use Image Resizer when preparing photos for websites, social media, email attachments, product listings or print while keeping the original private and on your device.
In this family
Image editing — related tools in the same cluster.
Frequently asked questions
Are my images uploaded?
No. Resizing is performed entirely in your browser using the canvas API. Files never leave your device.
Does this tool use AI?
No. It is a deterministic utility with no machine learning.
Does resizing reduce quality?
You control the output quality. The tool does not force additional compression beyond what you choose.
Do I need an account?
No. Open the page and start immediately.
Can I resize multiple images at once?
Single-file is core; batch support can be added later.
Is the original image modified?
No. You download a new resized file; the original stays untouched.
Related tools
More in Image tools.