Free Image Resizer with Presets

Resize an image

Choose image

Resize mode Width px Height px Scale percent Preset Output format

Keep aspect ratio when editing width or height

Resize result

Original dimensions-

New dimensions-

Original file size-

Output file size-

Download resized image

The selected image is processed in your browser for the core output. No account is required.

What this tool does

This image resizer creates a new copy of your image at the dimensions or percentage you choose.

When to use it

Use it when a profile, marketplace, document, website or social platform asks for a specific image size.

Example use

For example, upload a product photo, choose the 1200×1200 marketplace preset and download a square copy for a listing.

Privacy-first resizing

The resize step runs locally with browser canvas APIs. The tool does not require an account and does not upload the selected image to a ToolForge Online server.

Practical guidance

How this tool works

The page loads the selected image, calculates the target width and height from your mode or preset, draws the resized image on a canvas and exports a new file in the chosen format.

Limitations

Upscaling cannot add real detail to a small image, and exact platform requirements can change. Check the downloaded file before uploading it to an important profile, listing or campaign.

Who maintains this tool

Created and maintained by ToolForge Online. Last updated: June 2026.

FAQ

Does the image upload to ToolForge Online?

No. The core resize workflow runs in your browser using local image and canvas APIs. Avoid using confidential images if your organization does not allow browser-based tools.

Can I keep the original proportions?

Yes. Keep aspect ratio is enabled by default for manual width and height edits. Presets use their listed dimensions because those platform formats are usually fixed sizes.

Which output format should I choose?

JPG is practical for photos, PNG is useful for sharp graphics or transparency, and WebP often creates smaller files. Review the preview and output size before using the file.

Will resizing improve a low-quality image?

No. Resizing can change dimensions, but it cannot restore missing detail from a blurry or very small source. For important use, start with the best original image you have.