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Image Resizer

Resize images with custom dimensions, presets, and format conversion. Free and private.
Custom Dimensions

Set exact width and height in pixels or use percentage scaling.

Format & Quality

Export as PNG, JPEG, or WebP with adjustable quality.

Aspect Ratio Lock

Maintain proportions automatically when resizing.

100% Private

All processing in your browser. No uploads to any server.

Free Online Image Resizer

Need to resize an image for social media, email, your website, or a specific requirement? This tool lets you resize any image to exact pixel dimensions or scale by percentage. Choose your output format and quality level, then download the resized image instantly — all without uploading to any server.

Output Format Guide

  • PNG: Lossless compression. Best for images with text, logos, screenshots, and graphics with sharp edges. Larger file size.
  • JPEG: Lossy compression. Best for photographs and complex images. Smaller file size with adjustable quality.
  • WebP: Modern format with superior compression. 25-35% smaller than JPEG at equivalent quality. Supported by all modern browsers.

Privacy & Security

Your images are processed entirely in your browser using the HTML5 Canvas API. Nothing is uploaded to any server. This means your photos, screenshots, and documents remain completely private. The tool works offline after the initial page load.

Frequently Asked Questions

You can upload PNG, JPEG, WebP, GIF, and BMP images. Output can be saved as PNG (lossless), JPEG (lossy, smaller files), or WebP (modern, smallest files).

Yes, 100% free with no limits. Resize as many images as you want. No signup, no watermarks, no restrictions.

No. All image processing happens entirely in your browser using the HTML5 Canvas API. Your images never leave your device, ensuring complete privacy.

Yes. The aspect ratio lock is enabled by default. When locked, changing the width automatically adjusts the height proportionally, and vice versa. Toggle it off for free-form resizing.

Quick presets include common resolutions like 640×480, 800×600, 1024×768, 1280×720 (HD), 1920×1080 (Full HD), 256×256, and 512×512. Percentage scaling (25%, 50%, 75%, 150%, 200%) is also available.

The quality slider (10-100%) is available for JPEG and WebP formats. Higher quality means better image fidelity but larger file size. PNG is always lossless so quality does not apply. For most uses, 80-90% quality offers the best balance.

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