#415 · Language & Unicode Text Tool

Japanese Text Counter

Count Japanese text by Kanji, Hiragana, Katakana, fullwidth forms, halfwidth characters, sentences, and estimated reading time.

Text Input

Paste or upload text

Text to process

Processing mode

Custom note

note

Recent History

No history yet.

How to use this text tool

Paste text or upload a TXT/CSV file.
Choose cleanup and analysis options.
Run the tool and review the processed result, quality score, and metrics.
Copy the result or download TXT, CSV, or JSON.

What this tool does

Japanese Text Counter checks the input for language-specific characters, Unicode issues, formatting risks, and cleanup opportunities.

The tool applies Unicode-aware regular expressions, optional cleanup rules, script counting, width analysis, hidden-character detection, and before/after reporting.

Quality score is based on hidden characters, mixed formatting, script-specific issues, and how much cleanup was required.

Example

Example input: \u4eca\u65e5\u306f\u65e5\u672c\u8a9e\u306e\u6587\u5b57\u6570\u3092\u6570\u3048\u307e\u3059\u3002\u30ab\u30bf\u30ab\u30ca\u3068\u3072\u3089\u304c\u306a\u3001\u6f22\u5b57\u3092\u5206\u6790\u3057\u307e\u3059\u3002. After processing, the result card shows cleaned text and metrics.

Use cases

Clean copied text from PDFs, websites, spreadsheets, and AI tools.
Prepare multilingual text for publishing, SEO, translation, and localization.
Detect hidden Unicode characters before pasting into code or data files.

Tips for better output

Use strict cleanup for data, CSV, JSON, and code-like text.
Use report-only mode when you need to inspect text before changing it.
Export CSV or JSON when documenting cleanup results.

Processing details

Processing runs locally in the browser. The tool does not send your text to a server.

Automatic script detection is based on Unicode ranges and may not identify every language variety or orthographic convention.

FAQ

How many Kanji are in my Japanese text?

Use Japanese Text Counter with representative input, select the relevant options, and compare the processed output with the original text.

How do I count Hiragana and Katakana separately?

Paste the relevant text into Japanese Text Counter, choose the options that match your goal, and run the tool. Review the output and metrics to count hiragana and katakana separately before copying or downloading the result.

How long will this Japanese text take to read?

Test this case in Japanese Text Counter with a short sample first, then apply the same settings to the full text after confirming the output.

What is the Kanji ratio in my text?

Japanese Text Counter reports the tool-specific output and supporting metrics directly in your browser. For “What is the Kanji ratio in my text?”, use the displayed result, interpretation, and example together rather than relying on one number alone.

Does this Japanese counter detect fullwidth characters?

Japanese Text Counter runs locally in the browser. Review the tool-specific metrics and warnings before copying or downloading the result.

Related text tools

Chinese Character Counter #028 · Language & Unicode →Japanese Character Counter #029 · Language & Unicode →Korean Character Counter #030 · Language & Unicode →Arabic Character Counter #031 · Language & Unicode →

Module table

Module	Purpose
Input cleaner	Normalizes pasted text before analysis.
Unicode analyzer	Counts scripts, hidden marks, and formatting risks.
Result exporter	Copies, downloads TXT, CSV, and JSON reports.

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