📐 Image
✓ Free
🔒 100% Private
Image Resizer
Upload an image, then drag the handles to resize it visually — or enter exact pixels, a percentage, or choose a preset. All processing stays in your browser.
Image Resizer
Visual drag handles + exact pixel / percentage / preset modes
Drop your image here
or click to browse from your device
Choose Image
Supports: JPEG · PNG · WebP · GIF · Max 50 MB
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🔒 Ratio Locked
🖱 Drag corner or edge handles to resize visually
Hold Shift to temporarily ignore ratio lock
↓ Or use exact controls below
🔒 Aspect ratio locked — changing one dimension adjusts the other
→ —
25%
50%
75%
150%
200%
Processing…
Resize Complete
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Original
—
Resized
—
Scale
—
File Size
Original
—
Resized
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🔒
100% Private — nothing is uploaded
All resizing happens entirely inside your browser using the Canvas API. Your images are never sent to any server.
Frequently Asked Questions
After uploading your image it appears in a dark canvas editor with 8 blue handles around the border. Drag any corner handle to resize both dimensions at once. Drag an edge handle to resize only that dimension. Hold Shift while dragging to temporarily override the aspect ratio lock. The pixel dimensions update live as you drag and sync with the pixel input fields below.
Downscaling (making smaller) preserves quality very well. Upscaling (making larger) can introduce blurriness since new pixels must be interpolated. Use the "Don't upscale" option to prevent enlarging beyond the original dimensions.
When locked, changing the width auto-recalculates the height (and vice versa) to keep the original proportions. This prevents distortion. In the visual editor, hold Shift while dragging to temporarily drag freely regardless of the lock setting.
"Auto" keeps the original format. JPEG is best for photos (smaller files, no transparency). PNG is lossless and supports transparency. WebP gives the best balance — smallest files with great quality, supported by all modern browsers.
Done!
What is Image Resizer?
Image Resizer is a free online utility designed to help developers, designers, and technical professionals work more efficiently. This tool runs entirely in your browser — no installation required, no data sent to any server.
How to Use Image Resizer
- Paste or type your input in the editor area above.
- Click the action button to process your content.
- Copy the output or download the result.
Key Features
- 100% Free — No registration or payment required.
- Client-side Processing — Your data never leaves your browser.
- Instant Results — Get output in milliseconds.
- No Installation — Works directly in your web browser.
- Mobile Friendly — Works on phones, tablets, and desktops.
Who Uses Image Resizer?
This tool is widely used by web developers, software engineers, data analysts, students, and IT professionals who need a quick and reliable way to process data without setting up complex software environments.
Frequently Asked Questions
Is Image Resizer free to use?
Yes, Image Resizer is completely free. There are no hidden charges, no subscription fees, and no account required.
Is my data safe when using Image Resizer?
Absolutely. All processing happens locally in your browser. No data is uploaded to any server, making it completely private and secure.
Can I use Image Resizer on mobile devices?
Yes, Image Resizer is fully responsive and works on all modern browsers and devices including smartphones and tablets.
Do I need to install anything to use Image Resizer?
No installation is required. Simply open the page in your browser and start using it immediately.
How accurate is Image Resizer?
Image Resizer uses industry-standard algorithms to ensure accurate and reliable results every time.