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Text case converter

Convert between 14 different case formats: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, SCREAMING_SNAKE, kebab-case, COBOL-CASE, dot.case, path/case, alternating, INVERSE. Locale-aware (Italian and other European): accented letters stay accented, no blind folding.

Format Result

How to use the converter

  1. 1

    Paste the text

    Type or paste into the input field. The tool converts all 14 formats simultaneously as you type (debounced).

  2. 2

    Pick the locale

    Italian for proper handling of a, e, i, o, u with accents (kept after upper/lower) and Title Case using the standard Italian short-word stopword list (e, di, del, della) as lowercase.

  3. 3

    Copy the format you need

    Click the Copy button next to the desired format. Works also on browsers without Clipboard API (automatic fallback).

  4. 4

    Reuse

    Programming-friendly formats (camelCase, snake_case, kebab-case) are ready to use directly as variable names, file names, URL slugs, database identifiers.

Why one more case converter

Generic case converters on SERP mishandle Italian and European accents. Quick test: take "perché" and click UPPERCASE on a typical converter. Correct result: "PERCHÉ" with accented uppercase. Many tools strip the accent, or break the rendering, or convert to apostrophe. Same with "città", "perché", "più".

Here the converter uses String.prototype.toLocaleLowerCase and toLocaleUpperCase with the chosen locale (it/en/de/es/fr). For programming formats (camelCase, snake_case, kebab-case) tokenization splits words on spaces/dashes/underscores/dots/slashes, handles camelCase split (lowercase->Uppercase boundary), and keeps the accents inside words intact. For URL-friendly slugs (with diacritic removal) use the dedicated slug generator, which has the proper transliteration map.

Glossary

Technical terms used on this page, briefly explained.

camelCase #
Format where the first word is lowercase and every subsequent word starts uppercase: userFullName. JavaScript, Java, C#, Swift standard for variable names.
PascalCase #
Like camelCase but the first word also starts uppercase: UserFullName. Standard for classes/types in many languages.
snake_case #
All words lowercase separated by underscores: user_full_name. Python, Ruby, Rust, SQL standard.
kebab-case #
All words lowercase separated by dashes: user-full-name. URL slugs, CSS classes, HTML attributes standard.
Title Case #
First letter of every word uppercase, except articles, prepositions, short conjunctions (in English: a, an, the, of, in, on). Typical for editorial titles.

Frequently asked questions

How does it handle accented letters?
It keeps them. perché with proper Unicode accent becomes PERCHÉ in UPPERCASE, with the accent preserved. Same for à, è, é, ì, ò, ù, ñ, ç, all preserved properly through every transformation.
Does Title Case treat articles and prepositions as lowercase?
Yes, in English mode. The list used: a, an, the, and, or, but, of, in, on, at, to, for, with, by, as. They are never capitalized except as the first word of the title.
Does camelCase of a single word leave it untouched?
It always lowercases it (camelCase of "HELLO" becomes "hello"). To keep the original case, use a different format (e.g. PascalCase for the first letter uppercase).
Does it work with Unicode symbols (emoji, kanji)?
Yes for textual output, but snake/kebab/camel splitting treats non-Latin characters as parts of single words. Test: say hello 👋 world -> snake_case say_hello_👋_world. For multilingual datasets prefer the slug generator with transliteration.
Can I convert lists in batch?
Not explicitly in V1. But pasting a multi-line list keeps the line breaks: the converter operates character-by-character for upper/lower and word-by-word for camel/snake. For real CSV batch use a script (Python str.title(), JavaScript map).
Difference between Title Case and Sentence case?
Title Case capitalizes every word except short ones: The City of Turin and Why It Works. Sentence case capitalizes only the first word of every sentence (separated by.!?): The city of turin and why it works. Title case is for titles, sentence case for body text and descriptions.
Does it work offline?
Yes. The whole conversion runs directly in the browser; once the page has loaded, the tool keeps working without a connection.

Who builds these tools?

Maurizio Fonte, senior IT consultant with 20+ years in PHP, Laravel, unmanaged Linux infrastructure, applied cybersecurity and AI/LLM integration. Production backends, legacy code modernization, security audits, custom AI agents and MCP servers: the work behind every tool published here.

About Maurizio Fonte