Image File Size & Bandwidth Analyzer
Analyze how much bandwidth your image consumes. See how your file size will impact 3G/4G mobile users and your website's PageSpeed score.
The Cost of Heavy Images
Every megabyte on your website costs your users time and data. A 5MB hero image might load instantly on your office Wi-Fi, but it could take 15 seconds for a user on a 3G mobile network, causing them to abandon your site. This analyzer breaks down your image's file size, calculates exact download times across various network speeds, and flags assets that will fail Google's Core Web Vitals.
Why Use Our Image Size Analyzer?
- Network Simulation: Calculates download time on 3G, 4G, and Fiber connections.
- SEO Warning: Flags images over 500kb that will hurt your Lighthouse score.
- Instant Processing: Analyzes the file instantly in your browser.
- Actionable Advice: Recommends WebP or AVIF conversion if the file is too heavy.
How to Use the Image Size Analyzer
Upload the image you intend to use on your website.
View the exact file size in KB and MB.
Check the estimated load times on mobile networks.
Follow the recommendations to compress the file if needed.
Frequently Asked Questions
Ideally, large hero images should be kept under 300KB, while standard blog photos should be compressed to under 100KB.
3G networks typically max out at around 3-5 Mbps (Megabits per second). Since there are 8 bits in a byte, it takes actual time to transfer that much data.
All file processing is performed locally in your web browser. We do not upload, store, or view your data.