Character / Word Frequency

Analyse how often each character or word appears in your text.

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Quick Answer

It counts how many times each character appears in a text and displays the distribution as a table or chart, sorted by frequency.

What Is Character / Word Frequency?

Character / Word Frequency is a free online text tools tool that analyse how often each character or word appears in your text. A character frequency counter analyses a block of text and counts how many times each character (letter, digit, symbol, or whitespace) appears. It shows the results as a sorted table with counts and percentages, and optionally as a horizontal bar chart. Character frequency analysis is used in cryptography (frequency analysis to break substitution ciphers), in linguistics (studying letter distribution across languages), and in writing (identifying overused letters or characters). The tool treats uppercase and lowercase separately by default, with a case-insensitive option. It also distinguishes between different whitespace characters. Processing is local. Unlike many similar tools, it runs entirely in your browser — no data is sent to any server, no account is required, and there are no usage limits. Whether you are a developer, writer, SEO professional, or casual user, this tool provides instant, accurate results without friction.

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How to Use Character / Word Frequency

Paste or type your text. The frequency table updates in real time, sorted by count descending. Toggle case sensitivity to group 'A' and 'a' together.

Key Features

Per-character frequency with count and percentage
Case-sensitive or case-insensitive modes
Sorted table and optional bar chart view
Fully client-side

Common Use Cases

Analysing letter frequency for cryptography exercises
Studying character distribution in a language sample
Identifying unusual characters in a pasted document

Common Mistakes to Avoid

Forgetting that spaces and punctuation are counted as characters too
Confusing character frequency with word frequency
Treating Unicode combining characters as separate from their base character

Common Questions About Character / Word Frequency

How is character frequency used in cryptography?

Frequency analysis compares the character distribution of an encrypted message against known language distributions to guess substitution mappings.

Are spaces counted as characters?

Yes. Whitespace characters are included in the frequency count by default.

Related Tools & Resources

Word Counter
Sentence Counter
Palindrome Checker

Best Practices for Character / Word Frequency

To get the most out of Character / Word Frequency, follow these best practices. Ensure your input data is clean and properly formatted for the most accurate results. Use the copy function to transfer output directly to your clipboard. Bookmark the tool for easy access. Check the related tools section below for complementary utilities that can enhance your workflow. Remember that all processing is client-side, so your data never leaves your browser.

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Privacy & Security

Character / Word Frequency processes all data entirely within your browser using JavaScript. No text, files, or personal information is transmitted to any server. Your data stays on your device, making this tool safe for sensitive content. We do not track usage, store inputs, or share data with third parties. The tool works offline after the initial page load and requires no account to use.

Frequently Asked Questions

Find answers to common questions about this tool.

Why does the character frequency table include spaces?

By default, all characters including spaces, punctuation, and numbers are counted. Toggle "Ignore Whitespace" to exclude spaces and line breaks from the frequency distribution.

Does the tool sort words alphabetically or by frequency?

Results are sorted by count in descending order by default. Click the column headers to toggle between alphabetical and frequency-based sorting for both character and word tables.

Why does a common word like "the" not appear in the results?

The tool may automatically filter common stop words. Check if "Show Stop Words" is enabled in the options. When disabled, articles and prepositions are excluded from word frequency.

Can I analyze frequency for non-English text?

Yes. The tool works with any language. Character frequency works universally. Word frequency splits on whitespace, so languages without word separators may not produce accurate word counts.

What is the difference between character and letter frequency?

Character frequency counts every distinct character including uppercase, lowercase, digits, and symbols. If you want case-insensitive letter frequency, convert your text to the same case first.

Resources

Topic Cluster

Word counter, case converter, lorem ipsum generator, text diff checker, find and replace, character frequency analyzer, reverse text, duplicate remover, palindrome checker, and text to slug converter for text processing.

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