FREE · INSTANT · NO SIGNUP

Free Case Converter

Convert text to uppercase, lowercase, title case, sentence case, camelCase, snake_case, and more. Free case converter with 8 modes: instant, no signup.

Case Converter · 12 conversions · free · instant
Input
Output
0 words · 0 characters
8
Case modes
Instant
No button needed
AP Style
Title case logic

Case Converter: What It Does

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8 modes

UPPER, lower, Title, Sentence, aLtErNaTiNg, camelCase, snake_case, and kebab-case in one tool.

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AP style

Title case follows AP style: short articles, prepositions, and conjunctions stay lowercase.

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Live output

Output updates instantly as you type: no button needed, no delay.

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Developer modes

camelCase, snake_case, and kebab-case convert natural language to code-ready identifiers.

Title Case Converter: When to Use Each Mode

UPPER CASEAcronyms, headings, emphasis, design elements
lower caseCode variables, URLs, usernames, informal writing
Title CaseArticle headlines, book titles, H1–H3 headings
Sentence caseBody text, emails, blog posts, academic writing
aLtErNaTiNgMemes, social media humor, creative stylization
camelCaseJavaScript variables, function names, JSON keys
snake_casePython variables, database columns, file names
kebab-caseCSS class names, URL slugs, HTML attributes

Who Uses a Case Converter

WR

Writers

Use the title case converter to format article headlines and the sentence case converter for body text.

DEV

Developers

Convert natural-language identifiers to camelCase, snake_case, or kebab-case without retyping.

MK

Marketers

Strip all-caps legacy data to lowercase before importing into CMS or spreadsheet.

AC

Students

Fix autocapitalized text pasted from documents before submitting academic writing.

How to Use the Case Converter

1

Paste your text

Type or paste any text into the input. The case converter works on words, sentences, or full documents.

2

Choose a case mode

Click any of the 8 modes: UPPER, lower, Title, Sentence, aLtErNaTiNg, camelCase, snake_case, or kebab-case.

3

Output updates instantly

The converted text appears in the output panel immediately: no button, no delay.

4

Copy the result

Click Copy to copy the converted text to your clipboard. Paste it anywhere.

Free Case Converter: Uppercase to Lowercase, Title Case, and More

This free case converter handles all eight standard text case formats in one tool. Writers use the title case converter to format article headlines correctly. Developers use snake_case and camelCase conversion to reformat variable names and function identifiers without manual retyping. Students use the sentence case converter to fix automatically capitalized text pasted from documents. Marketers use uppercase to lowercase conversion to strip all-caps legacy data before importing it into a CMS.

The most common case converter questions involve title case vs. sentence case. Title case capitalizes every major word: used for headlines, book titles, and H1–H3 headings. Sentence case capitalizes only the first word: used for body text, meta descriptions, and most standard writing. After converting, run the grammar checker or check the readability score before publishing.

Frequently Asked Questions

A case converter changes text capitalization between formats: UPPER CASE, lower case, Title Case, Sentence case, aLtErNaTiNg CaSe, camelCase, snake_case, and kebab-case. This free case converter supports all 8 modes and updates the output instantly.
Paste your text, click "lower case." The entire text converts to lowercase instantly. Click Copy to copy the result.
Paste your text and click "Title Case." The tool capitalizes the first letter of every major word. Short words like a, an, the, and, but, or remain lowercase unless they are the first or last word.
A sentence case converter capitalizes only the first letter of each sentence and lowercases everything else: the standard format for body text, emails, and most writing.
Paste your text and click "UPPER CASE." Every letter converts to uppercase instantly.
Title case capitalizes the first letter of every major word: "The Quick Brown Fox." Sentence case capitalizes only the first word of each sentence: "The quick brown fox." Title case is for headlines; sentence case is for body text.
Completely free with no signup, no usage limits, and no data sent to a server.

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Free, no signup. 8 case modes: UPPER, lower, Title, Sentence, camelCase, snake_case, kebab-case, and more.

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