UltraConvert
5 tools

Text Tools

Case converters, word counters, text cleaners, and more. Process your text instantly without uploading. All tools run 100% in your browser — no uploads, no accounts needed.

Available Text Tools

Case Converter

Transform text between every common letter-case style instantly. Perfect for developers renaming variables, content creators generating URL slugs, editors fixing all-caps emails, or anyone needing consistent text formatting. Ten different case styles handle any conversion need.

Instant • Private

Regex Tester

Develop and debug regular expressions with live testing against your sample text. Visual match highlighting shows exactly what matches. Inspect capture groups, test replacement strings, and toggle all JavaScript regex flags. A 200ms execution timeout prevents runaway patterns from freezing your browser.

Instant • Private

Text Cleaner

Transform messy, disorganized text into clean, structured content. Remove duplicate lines, strip empty lines, eliminate HTML tags, normalize whitespace, and sort alphabetically. The composable cleaning pipeline lets you apply any combination of operations in a single pass. Essential for data cleaning, log analysis, list deduplication, and content preparation.

Instant • Private

Diff Checker

Identify differences between two versions of text with visual line-by-line comparison. Added lines highlighted in green, removed lines in red, and changed sections clearly marked. Useful for code reviews, legal document comparison, editing feedback, and version control visualization.

Instant • Private

Word Counter

Comprehensive text analysis with live statistics as you type. Count words, characters (with and without spaces), sentences, paragraphs, and lines. Get automatic estimates for reading time and speaking time, plus identification of your most frequently-used words. Essential for writers, students, editors, and content creators.

Instant • Private

About Text Tools

Our text tools are designed to handle your files with complete privacy. Unlike online services that upload your documents to remote servers for processing, all our tools run entirely within your browser using WebAssembly technology. This means your sensitive files — whether they're financial documents, personal records, or confidential business materials — never leave your device.

Each tool is optimized for speed and reliability. We use industry-standard libraries like MuPDF for PDF operations, compiled to run at native speeds in your browser. There's no queue, no waiting, and no limits on file size beyond what your device can handle.

Common questions

Are these tools really free?
Yes, all tools are completely free to use. There are no hidden fees, no subscription tiers, and no feature limitations. We believe useful tools should be accessible to everyone.
Is there a file size limit?
There's no artificial limit — you can process files as large as your device's memory allows. We've tested with files up to 500MB successfully. For extremely large files, make sure you have sufficient free RAM available.
Do I need to create an account?
No account or registration is required. Just open the tool, drop your files, and process them. We don't collect email addresses or personal information. Bookmark any tool for quick access in the future.