Batches of UUID v4 values from the browser's own CSPRNG, plus CRC32, FNV-1a and DJB2 of any pasted text with both hex and decimal output. Hashes are computed byte by byte, not via a built-in.
Identifiers
Hashes of your text

Run a pattern live against sample text: every match with its position, numbered and named capture groups, a match count, and a replacement preview.

Epoch seconds or milliseconds, an ISO string, or a phrase like 'in 2 hours' - resolved against your clock and shown in local time, UTC and your exact UTC offset.

One integer into binary, octal, decimal and hex, with a two's complement view at any bit width from 1 to 64 and a custom radix column for bases 2 to 62.

Run a pattern live against sample text: every match with its position, numbered and named capture groups, a match count, and a replacement preview.

The nominal rate the bank quotes against the rate the money actually earns, and exactly how much a setup fee takes back off it.

Work out the deposit per month that lands on your goal on a given date, then see the projection and whether it is actually reachable.

Compare offers on true annual value once bonus, retirement match, equity, commute and cost of living are counted, not just the base number.

Rent against a mortgage with tax, insurance and maintenance over any horizon, with the break-even point and the cash out year by year.