I caught an online hash tool storing my inputs. So I built my own.

Udit Choudhury — Tue, 05 May 2026 19:33:07 +0000

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. Figured other Laravel devs might
find it useful too.

If something feels off or you want a tool that's missing
drop a comment. Always looking to improve it.

Forem: Udit Choudhury

I caught an online hash tool storing my inputs. So I built my own.