Letter frequency table

Client

Count a–z letter frequencies as percentages—cryptanalysis starter.

a: 8.3%
d: 8.3%
e: 8.3%
h: 8.3%
i: 8.3%
l: 8.3%
n: 8.3%
o: 8.3%
r: 8.3%
s: 8.3%
t: 8.3%
u: 8.3%

Nearby workflows on Toolcore

  • Character frequency — Count how often each character appears—sorted table with Unicode code points; local only. for the next text or markup step in your edit loop.
  • Word frequency list — List word counts sorted by frequency—paste text for a local corpus snapshot. for the next text or markup step in your edit loop.
  • Vigenère cipher — Encrypt or decrypt A–Z with a repeating keyword—classic polyalphabetic cipher locally. for the next text or markup step in your edit loop.
  • ROT13 & Caesar cipher — Rotate Latin letters A–Z and a–z: ROT13 (self-inverse) or Caesar shift 0–25—other characters unchanged, local only. for the next text or markup step in your edit loop.

About this tool

English ciphertext often peaks at e and t—compare your sample to ETAOIN charts.

Common use cases

  • Letter frequency table for quick local checks without uploading data.
  • Copy results into tickets, docs, or classroom notes.

Common mistakes to avoid

  • Unexpected input shape

    See the intro and how-to notes for accepted formats.

FAQ

Is processing local?

Yes—this runs entirely in your browser.

Agent prefill?

Use q or qb for the main text field when supported.

More tools

Related utilities you can open in another tab—mostly client-side.