Use this text operation when its stated character encoding, token boundaries, normalization, case handling, and output format match the surrounding workflow.

Text

Required string.

The cited overview of Text processing supplies background for the terminology and domain context used by this tool.^[1]

Count how often each letter (case-insensitive) appears in text. Inputs are interpreted exactly in the displayed units and the calculation returns the following fields without presentation rounding.

Letter frequency

Returned object. Lowercase letter mapped to its occurrence count.

• Unicode normalization, locale, grapheme clusters, malformed input, ambiguous syntax, and implementation-specific conventions can change text-processing results.
• Use finite inputs in the displayed units, preserve source measurements and assumptions, and independently verify consequential decisions.

Preserve the original text, test representative non-ASCII and malformed cases, and use a standards-aware parser or serializer when interoperability matters.

• Word Frequency Counter

  Count how often each word appears in a text and report totals plus the most frequent word.

• Sentence Case Converter

  Lowercase text and capitalize the first letter of each sentence ending with a period, exclamation mark or question mark.

• Stopword Counter

  Count whitespace-delimited words that match common English stopwords, ignoring case.