a digit love letter

101

Three characters. infinite possibilities.

It's a palindrome. It's prime. It's the shortest URL nobody forgets. Meet 101 — the friendly digit reinventing the URL shortener.

Why 101?

Short, symmetric, and stupidly easy to remember.

3 characters

Tweetable. Memorizable. Faster to type than your password.

A palindrome

Reads the same forwards and backwards. The URL doesn't care which way you scan.

Prime & proud

101 is the smallest 3-digit palindromic prime. Also an emirp.

Binary vibes

Looks like binary, behaves like decimal. The cool kid of base systems.

The intro course

"Anything 101" is universal shorthand for start here.

Featherweight

This whole site is a single file under a megabyte.

Try the 101 Shortener

Paste a URL. Get a 101-style code. Stored locally in your browser.

Fun fact: with 3 chars from [0-9a-zA-Z] you get 238,328 unique codes.

0
the only number we love
0
characters, total
0
possible short codes
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KB ceiling, never reached
"If your URL doesn't fit on a sticky note, it's already too long."— probably someone, somewhere