Performance Analysis Tool

Image Optimization Analyzer

Analyse your images for performance, SEO, and Core Web Vitals. Get instant recommendations to reduce file size, improve page speed, and boost search rankings — all without uploading to our servers.

No Upload Required Privacy-First Analysis Core Web Vitals Check Instant Recommendations

Drop your image here or click to browse

Supports JPG, PNG, WebP, GIF, BMP, TIFF, SVG · Max 15 MB

Why Image Optimisation Matters

Optimised images are crucial for website performance, user experience, and search engine rankings.

Faster Page Load Speed

Compressed images load faster, reducing bounce rates and improving user experience. Studies show 53% of mobile users abandon sites that take over 3 seconds to load.

Better Core Web Vitals

Google uses Core Web Vitals (LCP, FID, CLS) as ranking factors. Optimised images directly improve Largest Contentful Paint (LCP), boosting your SEO performance.

Higher SEO Rankings

Search engines favour fast-loading websites. Optimised images reduce page weight, improve mobile performance, and contribute to better search rankings.

How Our Analyser Works

Client-side analysis keeps your images on your device — no uploads, complete privacy.

1

Upload & Parse

Your image is loaded in the browser using the File API. We extract file metadata including size, dimensions, format, and colour depth.

2

Quality Analysis

We analyse compression artefacts, colour distribution, and format efficiency to calculate an optimisation score based on industry best practices.

3

Recommendations

Based on the analysis, we suggest optimal formats (WebP, AVIF), compression levels, and dimension adjustments to maximise performance while maintaining quality.

4

Savings Estimation

We calculate potential file size reduction using compression algorithms and modern format conversion techniques, showing you exactly how much you can save.

Image Optimisation Best Practices

Follow these proven strategies to ensure your images are optimised for performance and SEO.

01

Choose the Right Format

  • WebP: Best for photos and complex images (20–30% smaller than JPEG)
  • AVIF: Next-gen format with superior compression (up to 50% smaller)
  • SVG: Perfect for logos, icons, and simple graphics
  • PNG: Use only when transparency is required
02

Optimise Dimensions

  • Never serve images larger than the display size
  • Use srcset and sizes attributes for responsive images
  • Aim for 2× resolution for Retina displays, but no larger
  • Consider lazy loading for images below the fold
03

Compress Wisely

  • Use 80–85% quality for JPEG (rarely noticeable difference)
  • Enable progressive JPEG for faster perceived loading
  • Strip unnecessary metadata (EXIF, colour profiles)
  • Test compression levels to find the sweet spot
04

Implement Performance Features

  • Add width and height attributes to prevent layout shifts
  • Use CDN for faster image delivery worldwide
  • Implement browser caching with proper headers
  • Consider image sprites for multiple small icons

Frequently asked questions

Common questions about image optimisation and performance.

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Ready to optimise your images?

Start analysing now and discover how much you can improve your website's performance.