Text Processing
Clean CSV exports, convert Markdown, deduplicate lists, and compare text diffs. Text transformations that run instantly in your browser.
13 tools available
Whether you're tidying up a CSV export, converting markdown to HTML, deduplicating a list, or just trying to figure out why your JSON won't parse, these text tools get it done. They handle whitespace cleanup, case conversion, delimiter swapping, column extraction, and a range of other string transformations. Paste your text in, pick the operation, and copy the result. Everything runs in your browser, so sensitive data never leaves your machine.
Developers working with messy data exports will find the Delimiter Swapper and Text Column Extractor most immediately useful — the first converts between CSV, TSV, and custom delimiters, while the second pulls specific columns out of a large dataset without requiring a spreadsheet app. The Duplicate Line Remover & Alphabetizer handles deduplication and sorting in a single pass, which is handy for cleaning email lists, tag arrays, or any text where duplicates have crept in.
For content work, the Markdown to HTML / Confluence Converter produces clean HTML from Markdown with proper heading hierarchy, code blocks, and table support — useful when migrating documentation between platforms. The Markdown Sanitizer & Formatter normalizes inconsistent Markdown syntax (mixed heading levels, inconsistent list markers, trailing whitespace) into a consistent style.
The Side-by-Side Visual Code Diff Checker and Text Diff & Plagiarism Compare Checker both highlight differences between two texts, but the first is optimised for code (line-level diff with syntax highlighting) while the second is designed for prose (word-level diff with similarity scoring). The Variable String Case Converter handles camelCase, snake_case, kebab-case, PascalCase, and a dozen other conventions — useful when translating between API naming styles.
How to choose the right tool
For data cleaning, start with the Delimiter Swapper and Duplicate Line Remover — these handle the most common issues with CSV exports and text lists. The Whitespace Trimmer catches formatting inconsistencies.
For content migration, the Markdown to HTML Converter produces clean output with proper heading hierarchy. Use the Text Diff Checker to compare versions before and after conversion.
Common use cases
- Data analyst cleaning a CSV export — The Delimiter Swapper converts between CSV and TSV, while the Duplicate Line Remover deduplicates in a single pass.
- Technical writer migrating documentation — The Markdown to HTML Converter produces clean output with proper heading hierarchy for Confluence or static sites.
- Developer comparing code versions — The Side-by-Side Diff Checker highlights line-level differences with syntax highlighting.
Related categories
For encoding, compression, and developer utilities that work alongside text transformation tasks.