Image Resizer
Resize images online for free — set exact dimensions, scale by percentage, or pick a preset for social media. Supports batch resizing with PNG, JPEG, and WebP output.
100% Client-Side — Images Never Leave Your Browser
Drop images here, click to browse, or paste from clipboard
Supports PNG, JPEG, WebP, GIF, BMP, SVG — up to 50 MB per file
Resize Settings
Original: —
% of original size
Result: —
Image will be scaled down to fit within these bounds (aspect ratio maintained).
Output Settings
Preview
Original
—Size: —
Type: —
Resized
—Size: —
Savings: —
Batch Resize — 0 images
Processing...
Keyboard shortcuts:
Ctrl+Enter Resize |
Ctrl+Shift+C Copy resized image |
Ctrl+L Clear
Frequently Asked Questions
Is my image uploaded to a server when I use this resizer?
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No. This image resizer runs 100% in your browser using the HTML5 Canvas API. Your images are never uploaded to any server — all processing happens locally on your device, ensuring complete privacy. You can even use this tool offline once the page is loaded.
What is the best image format for web: PNG, JPEG, or WebP?
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It depends on the image content. Use JPEG for photographs — it offers smaller file sizes with adjustable quality. Use PNG for images with transparency, text overlays, or sharp edges like logos and screenshots. Use WebP for the best compression — it supports both lossy and lossless modes and is supported by all modern browsers. WebP files are typically 25-35% smaller than equivalent JPEG or PNG files.
How do I resize an image without losing quality?
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To minimize quality loss when resizing: (1) Only downscale — enlarging images always reduces sharpness because new pixels must be interpolated. (2) Use PNG or WebP lossless format to avoid compression artifacts. (3) If using JPEG, keep quality at 85-95%. (4) Maintain the original aspect ratio to avoid distortion. This tool lets you lock the aspect ratio and control output quality precisely with the quality slider.