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imageoptimiser

Instructions

Everything you need to know about using Simple Image Optimiser.

What does Simple Image Optimiser do?

Simple Image Optimiser helps you resize, compress, and convert images for web use. You can set custom dimensions, choose your output format (WebP, JPEG, or PNG), and target a specific file size. It's perfect for preparing images for websites, social media, or email.

How do I use Simple Image Optimiser?

Using Simple Image Optimiser is simple — just follow these four steps:

  1. Configure — Set your desired width, height, crop strategy, output format, and max file size.
  2. Upload — Drag and drop your images or click to browse. You can upload multiple files at once.
  3. Process — Click the Process button. Processing happens instantly in your browser.
  4. Download — Download images individually or use "Download All" to get everything at once.

How big should my image files be?

Google recommends keeping images under 100KB for optimal web performance, and ideally under 200KB maximum. Large images significantly slow down page load times, which hurts your search engine rankings (SEO), increases visitor bounce rates, and consumes unnecessary bandwidth.

How do I crop my images?

Simple Image Optimiser focuses on resizing and compression. For cropping, use these free built-in tools:

  • Windows: Photos app (Edit → Crop) or Snipping Tool.
  • Mac: Preview (Tools → Rectangular Selection → Cmd+K) or Photos app.

Are my images safe?

Yes, completely. Simple Image Optimiser processes all images entirely in your browser using JavaScript. Your files are never uploaded to any server - they never leave your device.