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Free Online Text & String Manipulation Tools

Thirteen focused tools for the text work: case conversion, whitespace cleanup, deduplication, counting, reversing, comparing, extracting, splitting, Markdown conversion and placeholder text.

CASE

Case Converter

UPPERCASE, lowercase, Title Case, Sentence case and tOGGLE — applied live as you type.

Convert now →
CLEANUP

Remove Extra Spaces

Collapse double spaces, trim line edges, strip tabs and blank lines in one pass.

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DEDUPE

Remove Duplicate Lines

Keep the first occurrence of every line — case-insensitive matching optional.

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SORT

Sort Lines Alphabetically

Alphabetize A–Z or Z–A, or flip the whole line order — locale-aware sorting.

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WRAP

Add Prefix & Suffix

Wrap every line in quotes, commas, tags or markers — skip-empty option included.

Wrap now →
COUNT

Character Counter

Live counts for characters, words, lines, sentences and paragraphs as you type.

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REVERSE

Reverse Text

Flip characters, mirror words, or reverse line order — three modes, live output.

Reverse now →
DIFF

Text Difference Checker

Compare two texts line by line — removals in red, additions in green.

Compare now →
EXTRACT

Extract URLs & Numbers

Pull URLs, phone numbers, decimals or digits out of any messy text.

Extract now →
SPLIT

Split Text

Break comma, pipe or custom-delimited strings into one clean item per line.

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MD ↔ HTML

Markdown to HTML Converter

Two-way conversion: Markdown to clean HTML tags and back — drafts stay local.

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ASCII

Remove Accents

café becomes cafe, Straße becomes Strasse — Unicode-correct diacritic stripping.

Strip now →
FILLER

Random Text Generator

Fresh lorem ipsum style paragraphs for mockups, layouts and CMS testing.

Generate now →

About These Text Tools

Every tool on this page runs entirely in your browser — paste text from contracts, logs, or unpublished drafts without worry, because nothing is transmitted anywhere. The transformations use standard Unicode operations and locale-aware comparison, verified by an automated test suite.

Need developer utilities instead? The Developer & Encoding Tools category covers hashing, Base64, UUIDs, and network math.