⌨️ TextToolkit

Free Online Text Toolkit

TextToolkit is a free text converter for quick formatting and cleanup—switch to camelCase or snake_case, generate slugs, and normalize spacing in seconds. Use the text diff tool to compare edits line by line with character highlights, and the find and replace tool to update repeated phrases instantly, all in your browser.

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Transformed text will appear here after you pick a tool.

FAQ

›What is camelCase?

camelCase is a naming convention where words are joined without spaces and each word after the first starts with a capital letter. Example: "hello world" becomes "helloWorld". It is commonly used in JavaScript and programming variable names.

›What is snake_case?

snake_case is a naming convention where words are all lowercase and separated by underscores. Example: "hello world" becomes "hello_world". It is commonly used in Python, databases, and file names.

›What is kebab-case?

kebab-case is a naming convention where words are all lowercase and separated by hyphens. Example: "hello world" becomes "hello-world". It is commonly used in URLs, CSS class names, and HTML attributes.

›How do I compare two texts online?

Use the Compare tab in TextToolkit. Paste your original text in the left box and the modified text in the right box, then click Compare. The tool highlights added lines in green, removed lines in red, and unchanged lines in gray — with character-level highlighting for edited lines.

›Does TextToolkit store or send my text anywhere?

No. TextToolkit is 100% client-side. Your text never leaves your browser. There is no server, no database, and no tracking of your input.

›Is TextToolkit free to use?

Yes, TextToolkit is completely free. No signup, no account, no payment required. Just open the site and start using it.

›What is the difference between PascalCase and camelCase?

In camelCase the first letter is lowercase: "helloWorld". In PascalCase the first letter is uppercase: "HelloWorld". PascalCase is commonly used for class names in JavaScript, TypeScript, and C#.

How to use

ConvertActive
  • Paste your text into the large input area.
  • Tap any transformation pill to apply it instantly to your text.
  • Copy the output or clear everything to start over.
Compare
  • Put the baseline text on the left and the updated text on the right.
  • Toggle ignore options if whitespace or casing should not affect matching.
  • Press Compare to see added, removed, and unchanged lines with color cues.
Find & Replace
  • Enter the document you want to search in the main text area.
  • Type a find string to see live yellow highlights and the running match count.
  • Use Replace All or Replace First, then copy the result from the output box.