Letter Frequency Histogram

The Letter Frequency Histogram counts how often each letter of the alphabet appears in a block of text and shows the result as a row of bars, from A through Z.

Paste an article, a paragraph or a single sentence and the chart updates instantly, with the raw count and the percentage share next to every bar.

Letter frequency is a surprisingly useful lens.

Cryptography hobbyists use it to break simple substitution ciphers, since the most common letters in English (E, T, A, O) tend to keep their high counts even after a naive encryption.

Crossword and word-game players use it to gauge how unusual their text is.

Writers and students use it to compare samples, study a language, or check a pangram covers the whole alphabet.

Counting is case-insensitive, so "A" and "a" are tallied together, and anything that is not a letter — digits, spaces, punctuation, emoji — is simply ignored, keeping the picture clean.

The histogram always shows all 26 letters in order, even the ones with a count of zero, so the shape stays comparable between texts.

Everything runs locally in your browser; your text is never uploaded, and a plain-text version of the chart is one click away to copy.