Image Resizer — Batch with Aspect Ratio
Image Tools
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About This Tool
Free, private, serverless image resizer. Resize images by dimensions or percentage with aspect ratio lock. Batch processing with drag-and-drop. Quality and format control. No data leaves your browser — 100% client-side.
How to Use
- Drop images or click to browse.
- Choose resize mode: by dimensions or percentage.
- Set width/height or scale percentage.
- Toggle aspect ratio lock if needed.
- Select output format and quality.
- Click Resize All and download.
Frequently Asked Questions
Can I resize multiple images at once?
Yes. Drop or select multiple images and resize them all with one click. Each gets its own download button with original and new dimensions shown.
What resize modes are available?
Two modes: By Dimensions (set exact width/height with optional aspect ratio lock) or By Percentage (scale from 10% to 200%).
Does it maintain image quality?
Yes. Adjust the quality slider (10-100%) to balance file size and quality. Choose PNG for lossless, or WebP/JPEG with quality control.
Is my data private?
Absolutely. All resizing happens locally in your browser using the HTML5 Canvas API. No images are uploaded.
Guides & Tutorials
In-depth guides for every tool. Learn how to process your data privately, for free, right in your browser.
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