WizzyTools

Resize an image online for free 31 uses

Resize JPG, PNG, or WebP images to exact dimensions or a percentage, right in your browser.

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How it works

  1. 1

    Upload the image you want to edit (JPG, PNG, or WebP).

  2. 2

    Adjust the settings — size, angle, crop area, filter, or watermark text.

  3. 3

    Preview the result live as you adjust.

  4. 4

    Download the edited image.

Why use this tool

Every image task, one place

Resize, compress, convert, crop, rotate, filter, and watermark — no need for a heavyweight photo editor.

100% private, always

Every tool runs entirely in your browser using the canvas API — your images are never uploaded to a server.

Works on any device

Runs in the browser on Windows, Mac, Linux, iOS, and Android — nothing to install, nothing to trust but the tab.

Instant results

No queues and no desktop app to wait on — edits and conversions finish the moment you make them.

Convert to any format

Move between JPG, PNG, WebP, and ICO — output stays sharp, with quality settings when you need control.

Free, always

Every tool here is free to use, with no watermarks, size limits, or forced trial period.

Frequently asked questions

Downscaling generally preserves sharpness, but upscaling an image beyond its original dimensions will cause it to look softer or pixelated.

The tool fully supports standard web formats including JPG, PNG, and modern WebP files.

Yes, if you uncheck the aspect ratio lock, you can stretch or squash the image to fit exact width and height dimensions.

Extremely large files (like raw camera outputs) might hit browser memory limits; keeping inputs under 20 megapixels ensures smooth processing.

Yes, lowering the pixel count is one of the most effective ways to reduce the overall file size in bytes.

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