Text / String Tools

Encode strings for safe URL usage

Decode percent-encoded URL strings

Convert characters to HTML entities

Convert HTML entities back to characters

Decode and inspect JWT token header and payload

Generate placeholder text in words, sentences, or paragraphs

Count words, characters, sentences, paragraphs, and reading time

Compare two text blocks and highlight differences

Convert between camelCase, snake_case, PascalCase, kebab-case, and more

Sort lines alphabetically, numerically, reverse, shuffle, or dedupe

Test regex patterns with match highlighting and group extraction

Escape and unescape strings for JS, JSON, HTML, or SQL

Live preview rendered Markdown with syntax highlighting

Validate .env files and flag missing values or duplicate keys

Show byte size of text in UTF-8, UTF-16, and ASCII

Format and validate TOML configuration files

Edit Markdown tables with a visual grid — add rows and align cells

Generate a curl command that uses a JWT as the Authorization header

View unified or side-by-side diffs with syntax highlighting

Compare two .env files and show added, removed, and changed variables

Normalize Unicode text between NFC, NFD, NFKC, and NFKD forms

Write a resume in Markdown and export to styled HTML or PDF

Searchable reference of regex syntax with live examples

Escape non-ASCII chars as \uXXXX or decode them back

Count syllables per word (useful for copy + slugs)

Flesch + grade-level estimate for any prose block

Rank words by frequency, stop-words filtered

Strip smart quotes, zero-widths, non-breaking spaces

Generate a table of contents from markdown headings

Render spaces, tabs, newlines, zero-widths as glyphs

Remove duplicate lines, preserve order or sort

Re-wrap prose to a fixed column width