Image Resizer

About Image Resizer

Image Resizer is a free, browser-based design tool on AltFTool. Resize images with custom dimensions, social media presets, fit/crop modes, batch processing, and format export. Everything runs in your browser, so you can use Image Resizer instantly — no signup, no install, and no uploading your data to a server.

Resize images with custom dimensions, social media presets, fit/crop modes, batch processing, and format export. Use Image Resizer online for Design tasks...

How to use Image Resizer

1. Open Image Resizer on AltFTool — it loads instantly in your browser.
2. Upload or paste the local asset data.
3. Choose the output mode or preview option.
4. Download or copy the finished result.

Why use Image Resizer

• Prepare local assets

  Convert or inspect images, audio, video, and files directly in the workspace. With Image Resizer, this stays fast and private in your browser.

• Preview before export

  Check the result visually where the tool supports previews. With Image Resizer, this stays fast and private in your browser.

• Download the final file

  Keep the output ready for testing, upload, or documentation. With Image Resizer, this stays fast and private in your browser.

Frequently asked questions

Is Image Resizer free to use?

Yes. Image Resizer is available as a free online tool on AltFTool.

What can I use Image Resizer for?

Resize images with custom dimensions, social media presets, fit/crop modes, batch processing, and format export.

Does Image Resizer work on mobile?

Yes. Image Resizer is designed for modern desktop and mobile browsers.