Compare and measure text
This page is a directory, not a text-analysis form. It does not accept text or produce results. Select a card to open the separate tool for your task.
Choose an analysis tool for your text
Use Text Difference Checker when you need Word, Line, or Character changes between Original and Modified inputs. Choose Text Similarity Checker when the result you need is a similarity measure between two text inputs.
For text metrics, Text Analyzer provides Detailed Metrics, Flesch Reading Ease, Top Keywords, and Longest Words. Keyword Density Checker focuses on phrase frequency and density analysis.
- Keyword Density Checker: Analyze one-word, two-word, or three-word phrases, set Show top, and optionally include stop words. Review its density table, heatmap, and health score.
- Concordance Tool: Search a word or phrase in context with context sizes of
4,6,8, or12words, case sensitivity, whole-word matching, or regex. Results support Copy and CSV. - Language Detector: Rank likely languages from the input; results support copying or downloading a CSV report.
- Parts of Speech Tagger: Tag supplied text by part of speech.
- Passive Voice Checker: Find passive-voice candidates for review rather than treating them as definitive decisions.
- Regex Tester: Test a JavaScript regular expression against sample text with its documented flags; matching results support Copy or JSON download.
Inspect Unicode and hidden characters
- Unicode Inspector: Inspect characters and filter by Non-ASCII, Whitespace, Invisible, or Emoji / ZWJ sequences. Use Copy Report or CSV for the displayed rows.
- Unicode Property Tester: Test selected properties with Match any (OR) or Match all (AND).
- Invisible Character Detector: Find invisible characters, then use Copy Clean Text, Copy Report, or CSV.
- Homoglyph Detector: Scan for look-alike characters from different scripts.
Review results in the selected tool
- Select the card that matches your task and open its linked page.
- Paste or type text when the page provides an input area. For tools with file controls, use Upload or Drop file as shown on that page.
- Set the page's options, review the displayed result, and use its confirmed Copy, CSV, or JSON control when provided.
Check tool-specific limits and result states
These child pages do not share one input format, file policy, output type, algorithm, or documented maximum size. Check the selected page for its own controls and instructions.
- Empty input can produce no result, and a search can return no matches.
- Regex Tester can report an invalid regular-expression pattern.
- Language Detector warns when the text is too short for reliable detection.
- Passive Voice Checker uses heuristic detection. Review its candidates instead of treating them as definitive.
- Accepted files, encoding behavior, exact algorithms, and maximum input sizes are not documented consistently across the directory.
Frequently Asked Questions
What does this directory do?
It lists 14 separate Analyze Tools pages. The directory itself does not accept pasted text or return an analysis.
Which comparison tool should I choose?
Choose Text Difference Checker for Word, Line, or Character changes. Choose Text Similarity Checker when you need a similarity result between two text inputs.
What does Text Analyzer provide?
Text Analyzer exposes primary text counts, Detailed Metrics, reading ease, top keywords, longest words, and lexical-diversity analysis. Use Keyword Density Checker when you need phrase-frequency and density-focused results.
Do all child tools use the same controls and limits?
No. Inputs, options, file behavior, outputs, and documented limits vary. Check the selected child page, especially when a result is empty, no matches are found, or a pattern is invalid.