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An internet speed test that starts the moment the page opens and shows one big number. Tap for upload speed and latency if you want more.
Opens in a new tab. We do not control this site and it may have changed since we catalogued it.
Fast.com sits in Unreasonably Useful under Learn, filed as instant.
About this category: Sites that quietly do a job you would otherwise pay for or install software for. Included because being this good for free is genuinely strange.
Yes. Fast.com is free to use and needs no account.
No. You can use Fast.com without signing up for anything.
Yes. Fast.com works on phones as well as desktop browsers.
Yes, we file it as safe for work. It also works muted.
We file it as "Instant": Good within five seconds of loading.
Merge, split, compress, rotate, sign and convert PDFs from a single page. Covers nearly everything Acrobat charges a subscription for.
A big set of free PDF tools in the browser: merge, split, compress, convert and sign documents without creating an account first.
Builds a regular expression while explaining every token in a side panel and highlighting matches as you type. Ends a lot of guessing.
World clocks, time-zone converters, sunrise and moon times, calendars and countdowns, all on one long-running and reliably accurate site.
Two dozen SVG generators in one place — noise, grain, blobs, dots, gradients, mesh — all exportable and all free.
Home of the format that turns text into large letters made of smaller letters, with the whole font archive attached.
Searches the web for actual sound files by keyword, in a layout untouched since roughly 2003. Still the fastest route to a duck quack.
A fortnightly digest of measurable global progress on disease, energy and conservation, with a source for every claim.
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