Character Frequency Analyzer

Analyze the occurrence count and percentage share of every character in a document.

How It Works & Processing Standards

Analyze the occurrence count and percentage share of every character in a document.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 2,000,000 characters

Character Frequency Analyzer is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Character Frequency Analyzer

  1. 1
    Paste TextEnter text to analyze.
  2. 2
    Inspect Frequency TableReview character counts and percentage shares.

Common Use Cases

  • Cryptanalysis of substitution ciphers and typography letter frequency studies
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