I was using one of those popular online bcrypt tools.

Pasted a hash to look it up. It said "not found."

Then I got curious. I hashed a string on the same website.

Then pasted that hash back.

It found it instantly.

They were storing every input. Quietly building a reverse lookup

table from their users' data. Every string you hash on their

platform goes into their database.

So I built my own set of tools: https://turingcomplete.in/tools

Everything runs in your browser. No server receives your input.

Disconnect your WiFi after the page loads, they still work.

What's there:

Bcrypt & MD5 & SHA-256 generators

JWT decoder (token never leaves your browser)

JSON formatter & validator

JSON → PHP array converter (useful for Laravel seeders)

UUID generator (bulk up to 100)

Regex tester with live highlighting

Base64 encoder/decoder

Cron expression builder

Unix timestamp converter

Password generator

URL encoder/decoder

Built it mostly for myself.…