Tool version 1.0.0

Image Resizer

Changes pixel dimensions with clear control over aspect ratio, scaling method and output format.

Drop an image herePNG, JPEG or WebP up to 25 MB

Choose image

Width

Height

Lock aspect ratio

The preview and measured output will appear here. Your file stays on this device unless the tool says otherwise.

Quick answer

What is it?: Changes pixel dimensions with clear control over aspect ratio, scaling method and output format.
What does it accept?: Image, width, height, unit mode, fit rule and output format. Validate decoded image, positive dimensions and browser memory limits.
What does it produce?: Preview, final dimensions, estimated size and download. Validation explains conflicting dimensions or excessive pixel area.

Method

Processing notes

Local canvas resizing applies contain, cover, stretch or exact crop rules and respects EXIF orientation.

Results

Result ledger

Preview, final dimensions, estimated size and download. Validation explains conflicting dimensions or excessive pixel area.

Limits

Limitations first

Input quality, browser memory, remote server behavior and public API availability can affect a result. The finding describes the supplied material at the time of the test; it does not prove intent or future behavior.

Advanced

Advanced controls

Common size presets, percentage mode, background color for contain mode and multi size batch export.

Inputs

Input reference

Image, width, height, unit mode, fit rule and output format. Validate decoded image, positive dimensions and browser memory limits.

FAQ

Questions about Image Resizer

What does Image Resizer accept?

Image, width, height, unit mode, fit rule and output format. Validate decoded image, positive dimensions and browser memory limits.

How is the result produced?

Local canvas resizing applies contain, cover, stretch or exact crop rules and respects EXIF orientation.

What will I receive?

Preview, final dimensions, estimated size and download. Validation explains conflicting dimensions or excessive pixel area.

Is the input private?

Entirely local.

What are the main limitations?

Results depend on the quality, completeness and public availability of the supplied input. Review the evidence before making a high-impact decision.