Free Character Frequency Analyzer that works offline
Measure how often each character or word occurs in a block of text. Results are sorted by count and include a percentage of the analyzed items, with controls for capitalization and whitespace.
What this character frequency analyzer does
Frequency reports are useful for editorial analysis, compression experiments, language exercises and debugging unexpected characters. Ignoring case combines A and a, while ignoring whitespace focuses the report on visible content rather than formatting.
How to use the Character Frequency Analyzer
- Enter or paste the text whose characters or words should be counted into the tool.
- Adjust the available options so they match the format and result you need.
- Choose Analyze frequency and review a ranked count and percentage report before using it.
- Copy or download the result, then clear the page if the input was sensitive.
Common uses
- Finding repeated words in a draft
- Inspecting letter distribution in sample text
- Discovering invisible whitespace or unusual symbols
- Preparing simple statistics for classroom exercises
Private processing and offline access
This tool does not submit your input to a conversion server. Processing takes place inside the browser using local JavaScript and standard Web APIs. After the PWA has been installed or cached, the page and its core features remain available without an internet connection. Closing or clearing the page removes unsaved input; the tool does not create an account or cloud history.
Tips for accurate results
- Word frequency is token-based rather than full linguistic stemming.
- Disable ignore case when capitalization differences matter.
- Large text remains local but may take longer to analyze on mobile devices.
Frequently asked questions
Does this tool upload my data?
No. Character Frequency Analyzer processes its input in the current browser and does not submit it to a conversion API.
What input does the Character Frequency Analyzer accept?
Any Unicode text is accepted. Character mode counts code points, while word mode recognizes sequences of letters, numbers and common apostrophes.
Can I use this tool offline?
Yes. Once the Offline Tools PWA has cached the page, the core feature works without an internet connection.