Free Online Data & Text Tools

Format JSON, convert CSV to JSON and back, dedupe, sort, diff and count text — all in your browser. No upload, no signup; files up to 5 MB.

All data tools

JSON Formatter
Format, minify and validate JSON instantly — 0, 2 or 4 space indent.
CSV to JSON
Convert CSV to a JSON array of objects — strict RFC 4180 parsing.
JSON to CSV
Convert flat JSON arrays to spreadsheet-safe CSV with formula protection.
Remove Duplicate Lines
Remove duplicate text lines
Text Line Sorter
Sort text lines alphabetically A–Z or Z–A, with case-sensitive option.
Find and Replace Text
Find and replace text with literal matching — all occurrences, case toggle.
Text Diff Checker
Compare two texts and see changed lines
Word Counter
Count words, characters and lines
Case Converter
Convert text to upper, lower, title, sentence, camel, snake or kebab case.
Slug Generator
Create readable URL slugs with Unicode or ASCII text and a custom separator.
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences or words for layouts and prototypes.
Text to Binary
Encode or decode Unicode text as binary, hexadecimal, octal or decimal UTF-8 bytes.
Strip HTML Tags
Extract plain text from HTML, decode entities and preserve paragraph breaks.
Whitespace Remover
Trim lines, collapse repeated spaces and remove blank lines or invisible characters.
Email Extractor
Extract email addresses, remove duplicates, sort and export a clean list.
URL Extractor
Extract HTTP and HTTPS links, remove duplicates and optionally strip tracking parameters.
Remove Line Breaks
Join wrapped text into one line, with an option to retain paragraph boundaries.
Reverse Text
Reverse grapheme clusters, words or lines while keeping emoji sequences intact.
Morse Code Translator
Translate Latin letters, numbers and supported punctuation to and from Morse code.
Word Frequency Counter
Count Unicode words, rank their frequency and download the results as CSV.
Text Repeater
Repeat text with a custom separator and optional numbering, with a bounded output size.