Character Frequency
Count character occurrences and percentages.
Input
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How it works
How it works
- Iterates characters with
for...of, which walks Unicode code points (not 16‑bit code units). - No normalization: visually identical forms (e.g.,
évse+◌́) count separately. Normalize first if needed (str.normalize('NFC')). - Whitespace visualization: spaces show as “(space)”, newlines as ↵, tabs as → to make them visible.
- Percentages are per total characters; empty input is guarded to avoid divide‑by‑zero.
Privacy & Security
No data leaves your device.
Accuracy, Limits & Tips
Does not normalize; visually identical composed/decomposed characters count separately.
Examples
- Analyze frequency distribution.
- Spot unexpected whitespace characters.
Looking for broader guides and best practices? Visit the ToolsAreUs Blog for indexes (like the full tool list) and articles (e.g. secure password generation).