Image Optimizer (Resize/Compress/Convert)

A free tool to resize, compress, and convert PNG, JPEG, WebP, and AVIF images. Supports lossless compression and bulk exporting. Works entirely in your browser, ensuring your images are never uploaded to any external server.

Drop image here or click to select

PNG, JPEG, WebP, AVIF, BMP (Max 20MB)

Guide & Terminology

What is the Image Optimizer?

Resize and compress your images efficiently. This tool helps you prepare images for web deployment by reducing their file size without sacrificing noticeable quality.

How to Use

Drop your image into the tool.
Set your target dimensions.
Choose the target format (WebP is recommended for the web) and a quality compression ratio.
Observe the estimated file size savings and download the optimized image.

Terminology

WebP: A modern image format that provides superior lossless and lossy compression for images on the web.
Aspect Ratio: The proportional relationship between an image's width and its height. Keeping it locked prevents distortion.

Common Use Cases

Shrinking massive 5MB smartphone photos into 200KB WebP files before uploading them to a CMS.
Stripping EXIF metadata and standardizing user-avatar dimensions.

Security

All image processing and compression happens locally within your browser using HTML5 Canvas APIs. Your images are never uploaded to any remote server.

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