---
title: "Text Case Converter - Compare 13 letter cases side by side"
description: "Convert text between uppercase, lowercase, camelCase, snake_case, Title Case, and related formats. It is useful for variable naming and document formatting."
canonical_url: "https://web-toolbox.dev/en/tools/text-case-converter"
meta:
  author: K
  "og:description": "Convert text between uppercase, lowercase, camelCase, snake_case, Title Case, and related formats. It is useful for variable naming and document formatting."
  "og:image": "https://web-toolbox.dev/og/en/tools/text-case-converter-ba7c7be7.png"
  "og:image:alt": "Text Case Converter"
  "og:image:height": "630"
  "og:image:width": "1200"
  "og:title": "Text Case Converter - Compare 13 letter cases side by side"
---

> Index of every page on this site: [llms.txt](https://web-toolbox.dev/llms.txt)

# **Text Case Converter**

Convert text to upper, lower, and other cases

**Input text**

## **Identifiers**

**camelCase**

```
loremIpsumDolorSitAmetConsecteturAdipiscingElitSedDoEiusmodTemporIncididuntUtLaboreEtDoloreMagnaAliqua
```

**PascalCase**

```
LoremIpsumDolorSitAmetConsecteturAdipiscingElitSedDoEiusmodTemporIncididuntUtLaboreEtDoloreMagnaAliqua
```

**snake\_case**

```
lorem_ipsum_dolor_sit_amet_consectetur_adipiscing_elit_sed_do_eiusmod_tempor_incididunt_ut_labore_et_dolore_magna_aliqua
```

**SCREAMING\_SNAKE\_CASE**

```
LOREM_IPSUM_DOLOR_SIT_AMET_CONSECTETUR_ADIPISCING_ELIT_SED_DO_EIUSMOD_TEMPOR_INCIDIDUNT_UT_LABORE_ET_DOLORE_MAGNA_ALIQUA
```

**kebab-case**

```
lorem-ipsum-dolor-sit-amet-consectetur-adipiscing-elit-sed-do-eiusmod-tempor-incididunt-ut-labore-et-dolore-magna-aliqua
```

**dot.case**

```
lorem.ipsum.dolor.sit.amet.consectetur.adipiscing.elit.sed.do.eiusmod.tempor.incididunt.ut.labore.et.dolore.magna.aliqua
```

**path/case**

```
lorem/ipsum/dolor/sit/amet/consectetur/adipiscing/elit/sed/do/eiusmod/tempor/incididunt/ut/labore/et/dolore/magna/aliqua
```

**PASCAL\_SNAKE\_CASE**

```
Lorem_Ipsum_Dolor_Sit_Amet_Consectetur_Adipiscing_Elit_Sed_Do_Eiusmod_Tempor_Incididunt_Ut_Labore_Et_Dolore_Magna_Aliqua
```

**Train-Case**

```
Lorem-Ipsum-Dolor-Sit-Amet-Consectetur-Adipiscing-Elit-Sed-Do-Eiusmod-Tempor-Incididunt-Ut-Labore-Et-Dolore-Magna-Aliqua
```

## **Headings and sentences**

**Capital Case**

```
Lorem Ipsum Dolor Sit Amet Consectetur Adipiscing Elit Sed Do Eiusmod Tempor Incididunt Ut Labore Et Dolore Magna Aliqua
```

**Sentence case**

```
Lorem ipsum dolor sit amet consectetur adipiscing elit sed do eiusmod tempor incididunt ut labore et dolore magna aliqua
```

## **Upper and lower**

**lowercase**

```
lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
```

**UPPERCASE**

```
LOREM IPSUM DOLOR SIT AMET, CONSECTETUR ADIPISCING ELIT, SED DO EIUSMOD TEMPOR INCIDIDUNT UT LABORE ET DOLORE MAGNA ALIQUA.
```

## What is Text Case Converter?

A tool for converting a string into 13 letter cases such as camelCase, snake\_case, and kebab-case. It is useful when you want to align variable names, compare naming styles used by APIs or databases, or decide which case fits your project.

Each line of the input is converted and shown as a list, and the results update as you type.

## How to Use

1. Enter the text you want to convert.
2. Review the converted results for each case.
3. Copy the version you need.

Multi-line input is converted line by line. You can paste a list of name candidates and compare them all at once.

## Supported Formats

### Common Naming Conventions for Development

- camelCase: variable and function names in JavaScript or Java
- PascalCase: class and component names
- snake\_case: Python code or database column names
- SCREAMING\_SNAKE\_CASE: constant names
- kebab-case: CSS classes or URLs
- dot.case: configuration keys and some identifiers
- path/case: path expressions and hierarchical strings
- PASCAL\_SNAKE\_CASE: constant-style identifiers
- Train-Case: header-like notation such as HTTP headers

### Formats for Labels and Display Text

- lowercase: all lower case
- UPPERCASE: all upper case
- Capital Case: first letter of every word capitalized
- Sentence case: only the first letter of the sentence capitalized

## Use Cases

- Checking camelCase for JavaScript or TypeScript variables
- Reviewing snake\_case for Python code or database columns
- Creating kebab-case strings for CSS classes or URL slugs
- Formatting labels or headings with Capital Case or Sentence case
- Comparing naming candidates for API docs, UI copy, or file names

## Things to Keep in Mind

- Depending on how the input is delimited, the word splitting may not match your intent
- This tool is for comparing candidates, not for replacing identifiers across existing code

**How was your experience?**

Last updated: October 19, 2026

### **Related Tools**

- [<h4>**Character Counter**</h4>](https://web-toolbox.dev/en/tools/character-counter)
- [<h4>**HTML Tag Remover**</h4>](https://web-toolbox.dev/en/tools/html-tag-remover)
- [<h4>**Line Break & Whitespace Remover**</h4>](https://web-toolbox.dev/en/tools/line-break-remover)
- [<h4>**Lorem Ipsum Generator**</h4>](https://web-toolbox.dev/en/tools/lorem-ipsum-generator)
- [<h4>**Text Diff Checker**</h4>](https://web-toolbox.dev/en/tools/text-diff-checker)
- [<h4>**Text Duplicate Remover**</h4>](https://web-toolbox.dev/en/tools/text-duplicate-remover)
- [<h4>**Text Line Joiner**</h4>](https://web-toolbox.dev/en/tools/text-line-joiner)
- [<h4>**Text Prefix Suffix Adder**</h4>](https://web-toolbox.dev/en/tools/text-prefix-suffix)

```json
{"@context":"https://schema.org","@graph":[{"@id":"https://web-toolbox.dev/en#website","@type":"WebSite","description":"アカウント登録不要で使える無料Web開発ツール80種類以上。JSON整形、Base64変換、カラーコード変換、QRコード生成などをブラウザ上で瞬時に実行。開発者の作業効率を大幅に向上させます。","inLanguage":"en-US","name":"Web ToolBox","url":"https://web-toolbox.dev/en","translationOfWork":{"@id":"https://web-toolbox.dev/#website"}},{"@id":"https://web-toolbox.dev/en/tools/text-case-converter#webpage","@type":"WebPage","description":"Convert text between uppercase, lowercase, camelCase, snake_case, Title Case, and related formats. It is useful for variable naming and document formatting.","name":"Text Case Converter - Compare 13 letter cases side by side","url":"https://web-toolbox.dev/en/tools/text-case-converter","isPartOf":{"@id":"https://web-toolbox.dev/en#website"},"potentialAction":[{"@type":"ReadAction","target":["https://web-toolbox.dev/en/tools/text-case-converter"]}]},{"@id":"https://web-toolbox.dev/en/tools/text-case-converter#/schema/web-application/1","@type":"WebApplication","applicationCategory":"UtilityApplication","description":"Convert text between uppercase, lowercase, camelCase, snake_case, Title Case, and related formats. It is useful for variable naming and document formatting.","name":"Text Case Converter - Compare 13 letter cases side by side","operatingSystem":"Windows, macOS, Linux, Android, iOS"}]}
```

## Sitemap

See the full [sitemap](https://web-toolbox.dev/sitemap.md) for all pages.
