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Postmelon free online tool

Image Compressor, Converter & Generator

Compress images, convert formats, resize files, generate favicons, create clean file names, and pull color palettes directly in the browser.

Private browser processing
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Upload an image to create compressed and converted files.

Tip: WebP is usually best for website speed. JPG is best for photos. PNG is best when transparency matters.

Favicon Generator

Upload a square logo, process it, then download common website icon sizes.

No favicon set created yet.

Alt Text Generator

Create simple SEO-friendly alt text from your image name.

Your generated alt text will appear here.

SEO File Name

Convert any product or blog title into a clean image file name.

postmelon-image.webp

Size Recommendation

Pick a website use case and get a practical image size.

Choose a use case for a suggested size.

Image Palette

Generate a quick color palette from the first uploaded image.

Upload an image, then extract colors.

HEX to RGB

Convert website colors for CSS, design, and branding work.

RGB: 239, 85, 55

About This Tool

Postmelon Image Compressor, Converter & Generator helps you prepare images for websites, blogs, products, and social media in a quick and simple way. You can compress large image files, convert images to JPG, PNG, or WebP, resize photos, generate favicons, create SEO-friendly file names, write basic alt text, and extract colors from images.

This tool works directly in your browser, so your images are processed on your device. It is useful for improving website speed, reducing image file size, and making images easier to upload, share, and use online. Read more about this tool.

How To Use This Tool

  1. Click the upload area or drag and drop your image files.
  2. Choose the output format: JPG, PNG, or WebP.
  3. Adjust the image quality if you want a smaller file size.
  4. Enter a maximum width or height if you want to resize the image.
  5. Click Process to compress, resize, or convert your images.
  6. Download the optimized image when the result is ready.

Why Use This Tool

Large images can slow down your website and affect user experience. By compressing and resizing images before uploading them, your pages can load faster and perform better. WebP is often a good choice for websites, JPG is useful for photos, and PNG is best for images that need transparency or sharp details.

You can also use the extra tools to generate favicons, create clean SEO image file names, write simple alt text, and pick colors from your image for design or branding work.