Image utility

Free Image Resizer

Resize images for website layouts, Open Graph previews, YouTube thumbnails, Instagram posts, stories, Pinterest pins and email headers.

Free browser tool

Upload an image, check its readiness and use the Resize image panel to export exact dimensions with optional aspect ratio lock.

Drop your image here or choose a file

Supports JPG, PNG, WebP, static GIF and basic SVG. Recommended visual limit: up to 15 MB.

Privacy-first: your image is analyzed locally in your browser.

Publishing preset

Scores are estimated from common platform guidelines and practical publishing heuristics.

Choose a preset, upload an image and the results will appear here with score, warnings, practical recommendations and export tools.

Resize by dimensions

Set a custom width and height or use common publishing presets for fast exports.

Aspect ratio lock helps keep the image from looking stretched when only one dimension changes.

Use resizing for share previews, thumbnails, ecommerce grids, email headers and responsive website imagery.

FAQ

Can I resize by exact width and height?

Yes. Upload an image, set the width and height, then export a resized version locally from your browser.

What does lock aspect ratio do?

It keeps the image proportions consistent when you change width or height, which helps avoid stretched results.

Does resizing make a small image sharper?

No. Upscaling can fit a target size, but it usually cannot restore detail that was not present in the source image.

Which presets are included?

Common quick sizes include Open Graph, YouTube thumbnail, Instagram square, Story, Pinterest and email header dimensions.