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Browser Image Resizer

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Resize one image locally with aspect ratio lock and PNG, JPEG or WebP output choices.

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Resize one image locally with an optional aspect ratio lock. Choose Auto, PNG, JPEG or WebP output.

See more about the Browser Image Resizer

Auto keeps supported source formats and otherwise uses PNG; the download reports the actual browser-encoded format. Review the generated result before saving. Use Batch Image Resizer for multiple files.

Key features

  • Clean interface
  • Fast processing
  • No signup required
  • Works offline

Related Blog Posts

Quick answers for Browser Image Resizer

Does my photo get uploaded to a server to resize it?
No. Resizing happens entirely in a canvas element in your browser, so the file never leaves your device.
Can I resize without distorting the image?
Yes, a lock aspect ratio toggle recalculates the height automatically whenever you change the width (or vice versa), so the proportions stay correct unless you deliberately unlock it.
What file format does the resized image download as?
Choose Auto, PNG, JPEG or WebP. Auto preserves supported source formats and otherwise uses PNG. The result reports the actual encoded format if the browser falls back.