Performance
- Free forever
- No sign-up
- Instant results
Load Time Estimator
Translate file sizes into real download times across connection speeds from dial-up to 100Mbps. A useful reality check when weighing up whether an asset is worth its weight.
Estimated load time
—
When would you use this?
A 500KB JavaScript bundle might feel fast on your office broadband but be genuinely painful for someone on a 4G connection in a rural area. This estimator translates file sizes into real download times across a range of connection speeds. A useful reality check when you're deciding whether to optimize a resource or whether that extra image carousel is really worth it.