Text Tools tools

Count words, characters, and sentences. Get reading time and Flesch score as you type.

• Count words, characters, and sentences
• Reading time estimate
• Flesch readability score
• +1 more

Sort lines alphabetically and remove duplicates. Use when cleaning lists; for comparing two texts use text-diff-visual. Input: text lines ≤10MB. Returns sorted unique lines. 100% client-side.

• Sort lines alphabetically or reverse
• Remove duplicates and empty lines
• Randomize line order
• +1 more

Preview rendered Markdown without editing. Use for quick read-only preview; for editing use markdown-editor, for HTML output copy use markdown-to-html. Input: Markdown ≤10MB. Returns rendered HTML preview. 100% client-side.

• Live preview of Markdown as you type
• GitHub-flavored Markdown support
• Copy the rendered HTML output

Generate URL slugs from titles with lowercase rules. Use as default slug tool; slugify-string is a noindex alias. Input: text ≤10MB. Returns slug string. 100% client-side.

• Generate URL-safe slugs from any text
• Transliteration for non-Latin scripts
• Custom separator and case options
• +1 more

Count characters, words, lines, and bytes. Use for quick length checks; for full stats use word-counter. Input: text ≤10MB. Returns counts. 100% client-side.

• Count characters, bytes, and code points
• Encoding-aware measurement
• Real-time results while typing

Normalize email addresses for dedup and login matching. Use when cleaning lists; for validation use regex-tester. Input: emails ≤10MB. Returns normalized list. 100% client-side.

• Normalize emails to canonical form
• Remove plus aliases and comments
• Lowercase domains for comparisons

Visual side-by-side diff for two texts with char-level highlights. Use as default diff tool; for similarity score use string-comparison, for JSON use json-diff. Input: two texts ≤10MB. Returns visual diff. 100% client-side.

• Compare text with a visual side-by-side diff
• Word- and line-level change detection
• Highlight additions and deletions

Obfuscate strings with masking and reversible transforms. Use when hiding PII in demos; for hashing use hash-generator. Input: text ≤10MB. Returns obfuscated text. 100% client-side.

• Obfuscate text with hex, binary, ROT13, and Base64
• Multiple encoding methods at once
• Copy any encoded form

Search and copy emoji with keywords. Use when inserting emoji; for ASCII art use ascii-art. Input: search text. Returns emoji to copy. 100% client-side.

• Searchable emoji library
• Category filtering
• One-click copy to clipboard

Compute similarity % and Levenshtein distance between strings. Use for fuzzy match scoring; for visual diff use text-diff-visual. Input: two strings ≤10MB. Returns similarity + distance. 100% client-side.

Remove duplicate lines from text while keeping first-seen order. Case and trim options.

Find and replace text with literal, regex, and case-insensitive modes. Shows replacement count.

Reverse text by characters (grapheme-safe for emoji), words, or lines.

Normalize line breaks to LF (Unix/Mac) or CRLF (Windows), or remove them entirely.

Estimate reading and speaking time from text with adjustable words-per-minute rates. Includes word, character, sentence, and paragraph counts.