Define the rule
Decide whether you need counts, whitespace cleanup, list conversion, comparison, or keyword analysis and what counting rule applies.
CATEGORY TOOLS
09036LIVE
Character & Document Statistics Counter
Count characters, words, sentences, paragraphs, lines, UTF-8 bytes, and estimated reading time instantly in your browser.
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037LIVE
Text Whitespace & Line Break Cleaner
Clean repeated spaces, line-edge whitespace, tabs, blank lines, and LF/CRLF line endings locally in your browser.
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038LIVE
Case & Sentence Format Converter
Convert text to uppercase, lowercase, title case, sentence case, or first-letter uppercase while preserving its structure.
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039LIVE
List Sorter & Duplicate Remover
Remove duplicate lines, sort lists alphabetically or numerically, reverse order, and shuffle locally in your browser.
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040LIVE
Delimiter & List Converter
Convert new lines, commas, tabs, and custom delimiters, then add quotes, numbering, or bullets.
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041LIVE
Text Data Extractor
Extract numbers, Korean, English, emails, URLs, phone numbers, and hashtags from long text by type.
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042LIVE
Text Find & Replace
Find one or multiple terms, replace them simultaneously from the original text, and review replacement counts.
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043LIVE
Text Diff & Compare
Compare two texts by line and word, classify additions, removals, and changes, and copy a diff report.
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044LIVE
Keyword Frequency & Duplicate Analyzer
Analyze word frequency, keyword density, top keywords, and repeated or duplicate sentences locally in your browser.
OPEN TOOL↗
HOW TO USE
How to use text tools
When a task rewrites text, keep the source and work on a copy. Choose the tool for counting, cleanup, conversion, comparison, or analysis.Work on a copy
For find-and-replace or cleanup operations that change content, preserve the source before processing.
Compare the result
Check character counts, line breaks, delimiters, and encoding-related changes before copying the final text.
EXPERT CATEGORY GUIDE
Rules that change text-processing results
Character counts, whitespace, line breaks, delimiters, and encoding use different rules. For operations that rewrite text, work on a copy first and compare the result with the source.Characters, words, and lines
Character counts change depending on whether spaces are included, and word counts depend on language and tokenization rules. Confirm the requirement first.
Whitespace and line breaks
Repeated spaces, tabs, blank lines, and line-ending characters can look similar but are different data. Preserve required formatting before cleanup.
Find and replace
Bulk replacement can alter unintended text. Check case sensitivity, whole-match rules, and regular-expression settings before applying changes.
Lists and delimiters
When converting commas, tabs, or line breaks, a value that already contains the delimiter may be split incorrectly by a simple rule.
Bytes and encoding
Character count is not the same as UTF-8 byte count. Korean, Japanese, emoji, and other multi-byte characters matter for storage and transmission limits.
Interpreting analysis
Keyword frequency and duplicate counts are reference metrics. Context, word forms, case handling, and normalization rules can change the result.
CATEGORY FAQ
Text Tools FAQs
01What tools are included in this category?+
This page collects the currently available tools related to Text Tools, and each one can be opened directly.
02Are all tools in this category free?+
The basic tools currently provided are free to use.
03Can I use them without an account?+
Yes. You can open each tool directly without registration.
04Can I use these tools on mobile devices?+
Yes. The pages adapt to phones and tablets.