# Text to Snake Case

Convert text to snake_case (lowercase with underscores)

> Canonical page: https://elysiatools.com/en/tools/text-snake-case

- **Category:** Text Processing

- **Keywords:** text, snake, case, convert, underscore, transform

## Overview

The Text to Snake Case tool instantly transforms any string into snake_case format, converting characters to lowercase and replacing spaces or separators with underscores. It is an essential utility for developers and data analysts who need to standardize naming conventions for variables, database columns, or file names.

## Inputs

- **Text Input** (text): Enter text to convert to snake_case...

## When to use

- Standardizing variable names for programming languages like Python or Ruby.
- Formatting database column headers to ensure consistency across schemas.
- Creating clean, URL-friendly file names from descriptive titles.

## How it works

- Enter your source text into the input field.
- The tool automatically converts all characters to lowercase.
- Spaces and special characters are replaced with underscores to create a single, continuous string.
- Copy the resulting snake_case text directly to your clipboard for immediate use.

## Use cases

- Preparing clean identifiers for API endpoints and JSON keys.
- Renaming local files to follow a uniform, underscore-separated naming scheme.
- Refactoring legacy code to adhere to modern snake_case style guides.

## Frequently asked questions

### What is snake_case?

Snake case is a naming convention where words are written in lowercase and separated by underscores, such as 'my_variable_name'.

### Does this tool handle special characters?

Yes, the tool replaces spaces and most non-alphanumeric characters with underscores to ensure the output is valid for code identifiers.

### Is the conversion case-sensitive?

The tool automatically converts all input text to lowercase regardless of the original casing.

### Can I convert multiple lines at once?

Yes, you can input multiple lines of text, and the tool will process them according to standard snake_case rules.

### Is this tool free to use?

Yes, this utility is completely free and runs directly in your browser without requiring any downloads.

## Related tools

- [Advanced Case Converter](https://elysiatools.com/en/tools/advanced-case-converter): Convert between CamelCase, snake_case, kebab-case, PascalCase, and other naming conventions
- [Leet Speak Converter](https://elysiatools.com/en/tools/leet-speak-converter): Convert text to and from leet speak (1337). Encode with Basic, Full, or Caps styles, or decode leet back to plain text.
- [Sentence Case Converter](https://elysiatools.com/en/tools/sentence-case-converter): Convert text to Sentence case: capitalize the first letter of each sentence and lowercase everything else. Auto-restores the standalone pronoun "I".
- [Simplified to Traditional Chinese Converter](https://elysiatools.com/en/tools/simplified-to-traditional-chinese-converter): Convert Simplified Chinese text to Traditional Chinese with OpenCC phrase conversion
- [Slug Generator](https://elysiatools.com/en/tools/slug-generator): Generate clean URL slugs from any text, with built-in Chinese-to-Pinyin conversion. Collapse separators, lowercase, and optional max-length word-aware truncation.
- [Small Caps Converter](https://elysiatools.com/en/tools/small-caps-converter): Convert text to Unicode small capitals (ʜᴇʟʟᴏ). Uses Phonetic Extensions small-cap glyphs; letters without a dedicated glyph fall back to lowercase.
- [Text Case Converter](https://elysiatools.com/en/tools/text-case-converter): Convert text between different cases
- [Text to Dot Case](https://elysiatools.com/en/tools/text-dot-case): Convert text to dot.case (lowercase with dots)

## Samples

- [Text Case Format Samples](https://elysiatools.com/en/samples/text-case-formats): Examples of different text case formats: camelCase, snake_case, kebab-case, PascalCase, and more
- [Text with Emoji Samples](https://elysiatools.com/en/samples/text-with-emoji-samples): Mixed language text containing various Unicode emojis for testing emoji extraction
- [Chinese-English Mixed Text Samples](https://elysiatools.com/en/samples/text-chinese-english-mixed-samples): Sample text files with mixed Chinese and English content for testing automatic spacing tools
- [Text with Chinese Samples](https://elysiatools.com/en/samples/text-with-chinese-samples): Mixed language text containing Chinese characters for testing Chinese extraction