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A big set of free PDF tools in the browser: merge, split, compress, convert and sign documents without creating an account first.
Opens in a new tab. We do not control this site and it may have changed since we catalogued it.
PDF24 Tools sits in Unreasonably Useful under Learn, filed as a minute.
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. PDF24 Tools is free to use and needs no account.
No. You can use PDF24 Tools without signing up for anything.
Yes. PDF24 Tools works on phones as well as desktop browsers.
Yes, we file it as safe for work. It also works muted.
We file it as "A minute": One quick round, then you can leave.
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.
Answers computed rather than retrieved: integrals, unit conversions, orbital mechanics and the nutritional content of a Mars bar.
Type the name of any app and get a crowd-ranked list of alternatives, filtered by platform, price and whether the project is open source.
A hand-drawn character builder in the Open Peeps style, producing an avatar that does not look machine-generated.
Every adoptable animal in a hundred thousand shelters, searchable by postcode, which is dangerous browsing after 11pm.
Sixteen questions sort you into one of Pew's nine American political groups, with a decade of real survey data behind every one.
Colorado's library of physics, chemistry and maths simulations, used in classrooms everywhere and free to meddle with.
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