How does the image resizer work?

Upload your image, choose a resize method (pixels, percentage, or preset), set your dimensions, and click Resize. The result downloads instantly — entirely in your browser.

Is my image uploaded to a server?

No. All resizing happens locally in your browser using the Canvas API. Your images never leave your device.

Will resizing reduce image quality?

Downscaling generally maintains quality. Upscaling beyond the original resolution can cause pixelation. Use the quality slider before downloading to balance size and sharpness.

What image formats are supported?

JPG, PNG, WebP, GIF, BMP, AVIF, TIFF, HEIC/HEIF, SVG, ICO and most common image formats. Output can be saved as JPG, PNG, WebP, GIF, BMP, AVIF, or TIFF.

Image Resizer — Resize Photos Online

Resize any image online for free — by pixels, percentage, or preset. Change aspect ratio, batch process, and keep full privacy with 100% in-browser processing.

Why it matters: Use this main image resizer for everyday dimension changes, social presets, and print sizes — every action runs locally in your browser.

How to resize images

1Upload your image. Everything stays in your browser — nothing is sent to a server.
2Pick a method — By Pixels for exact sizes, By % to scale proportionally, Aspect Ratio to reshape, or a Preset for social/print standards.
3Resize and download. Batch mode bundles every file into a single ZIP.

Best settings for this page: Choose By Pixels, By %, Aspect Ratio, or a Preset, set your dimensions, and download. Batch mode handles many files at once.

All resizing runs locally in your browser. Your files are not uploaded to any server.

Frequently Asked Questions

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Image Resizer — Resize Photos Online

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