What is it
Case Converter is a free online tool that transforms your text directly into the same edit box, without having to copy the result from a separate field. You type or paste the content, click on a formatting button and the text appears transformed right there, just like in a common text editor.
In addition to the classic options (UPPERCASE, lowercase, Title Format and Phrase Format), the tool brings together formats used by those who work with programming and SEO: URL Slug (transforms phrases into friendly links, such as my-post-from-2026), camelCase and snake_case (to name variables in code) and remove accents (exchanges á, ê, í, ó, ç for their versions without accent). There are also fun options, such as text aLtErNaDo (alternating upper and lower case letters) and text in reverse, which reverses the order of the letters.
If you apply formatting and don't like the result, there is a Undo button, which returns the text to its previous state. This way you can test different options without fear of losing what you had already written.
How to use
- Type or paste your text into the tool's edit box.
- Choose one of the options in the toolbar: Classic Formatting, Dev & SEO or the fun formats.
- See the text transform in the box itself, without having to copy from a separate field.
- Click Undo if you want to return to the previous version before the transformation.
- Use the clear button to erase everything and start over.
- Click Copy Result to take the formatted text wherever you need it.
Tips
- Use URL Slug to create Google-friendly page addresses without spaces or accents.
- Title Format capitalizes the first letter of each word, ideal for titles and proper names, while Sentence Format capitalizes only the first letter of the sentence.
- Combine camelCase or snake_case with the option to remove accents to name variables without errors in your code.
- All processing happens in your browser, so the text is not sent to any server while you format.