1. Select Images
Drop images here or click to browse
Multiple files allowedQuick Guide
- Upload your images.
- Select resize mode.
- Set target dimensions.
- Download resized results.
Why Image Resizer Matters
Oversized images kill site speed. 4K photos waste mobile data. Resize solves both.
Canvas API scales in browser. Output optimizes Core Web Vitals.
Core Features
- Multiple Modes: Max width, exact, or percentage scaling.
- Format Choice: Output JPG, PNG, or WebP.
- Batch Ready: Process dozens simultaneously.
- Quality Control: Adjust output fidelity.
Quick Tips
Downsample from large source. Upscaling blurs images. Check results before publishing.
Match output size to layout. 800px width fits most content.
Under the Hood
Canvas API rescales pixels in browser. Bicubic algorithm preserves edge detail.
Why Choose AllOmnitools?
No server processing. Images resize locally in browser.
Images never leave your computer. 100% data security.
Resize dozens at once. No premium fees.
Choose format, quality, and resize mode.
FAQ
How does resizing work?
Canvas API rescales pixels. Interpolation preserves detail. Quality setting controls output.
Is this private?
Yes. All processing in browser. Nothing uploads anywhere.
Which formats supported?
JPG, PNG, WebP accepted. Mix formats in one batch.