# Fullwidth to Halfwidth Converter

Convert fullwidth characters to halfwidth characters for proper text formatting

> Canonical page: https://elysiatools.com/en/tools/fullwidth-to-halfwidth

- **Category:** Text Processing

- **Keywords:** fullwidth, halfwidth, character conversion, text formatting, CJK characters, ASCII conversion

## Overview

The Fullwidth to Halfwidth Converter is a precise utility designed to normalize text by transforming wide-format characters into their standard ASCII halfwidth equivalents, ensuring consistent typography and compatibility across digital platforms.

## Inputs

- **Text Input** (textarea): Enter or paste your text with fullwidth characters here... Examples: Ｈｅｌｌｏ Ｗｏｒｌｄ！ １２３４５６７８９０ ＡＢＣＤＥＦＧ ！？，。；： （ ）［ ］｛ ｝
- **Conversion Mode** (select)
- **Preserve Line Breaks** (checkbox): Keep original line breaks and paragraph structure
- **Show Conversion Statistics** (checkbox): Display detailed statistics about the conversion process
- **Output Format** (select)

## When to use

- Standardizing text copied from CJK-based environments for use in English-centric software.
- Fixing inconsistent spacing or character widths in code, database entries, or configuration files.
- Cleaning up user-generated content that contains accidental fullwidth punctuation or alphanumeric characters.

## How it works

- Paste your text containing fullwidth characters into the input area.
- Select your preferred conversion mode, such as converting all characters or targeting specific types like numbers or punctuation.
- Adjust settings to preserve line breaks or generate a comparison report.
- Click the convert button to instantly receive your normalized, halfwidth text.

## Use cases

- Normalizing database inputs to ensure consistent character encoding and searchability.
- Formatting code comments or documentation that accidentally included fullwidth symbols.
- Cleaning up messy text copied from legacy systems or international document formats.

## Frequently asked questions

### What is the difference between fullwidth and halfwidth characters?

Fullwidth characters occupy two standard character spaces (often used in CJK scripts), while halfwidth characters occupy a single standard ASCII space.

### Can I convert only numbers or punctuation?

Yes, the 'Conversion Mode' setting allows you to target specific character sets like numbers, letters, or symbols exclusively.

### Will this tool affect my line breaks?

By default, the tool preserves your original line breaks and paragraph structure, though this can be toggled in the settings.

### Is this tool safe for sensitive data?

Yes, the conversion happens locally in your browser, ensuring your text is not sent to any external server.

### What output formats are available?

You can choose between plain converted text, a side-by-side comparison, or a detailed report including conversion statistics.

## Related tools

- [Halfwidth to Fullwidth Converter](https://elysiatools.com/en/tools/halfwidth-to-fullwidth): Convert halfwidth characters to fullwidth characters for CJK text formatting
- [Text Pad & Align](https://elysiatools.com/en/tools/text-pad): Pad text to a fixed width and align it left, right, center, or justified, with a chosen pad character.
- [Text Spacer - Auto Add Spaces Between Chinese and English](https://elysiatools.com/en/tools/text-spacer): Automatically add spaces between Chinese characters and English/numbers to improve readability
- [Text to CSV Converter](https://elysiatools.com/en/tools/text-to-csv): Convert various text formats to CSV with customizable parsing options
- [Line Number Adder](https://elysiatools.com/en/tools/line-number-adder): Add line numbers to text or code with customizable formatting options
- [Newline Normalizer](https://elysiatools.com/en/tools/newline-normalizer): Normalize and unify newline characters in text to consistent line ending format
- [ASCII85 Converter](https://elysiatools.com/en/tools/ascii85-converter): Encode and decode text to/from ASCII85 format (Adobe version)
- [Base32 Converter](https://elysiatools.com/en/tools/base32-converter): Encode and decode text to/from Base32 format with multiple variants

## Samples

- [Web Image Processing Python Samples](https://elysiatools.com/en/samples/web-image-processing-python): Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion
- [Android Image Processing Java Samples](https://elysiatools.com/en/samples/android-image-processing-java): Android Java image processing examples including reading/saving images, scaling, and format conversion
- [Android Image Processing Kotlin Samples](https://elysiatools.com/en/samples/android-image-processing-kotlin): Android Kotlin image processing examples including reading/saving images, scaling, and format conversion
- [Web Image Processing Rust Samples](https://elysiatools.com/en/samples/web-image-processing-rust): Web Rust image processing examples including image read/save, scaling, and format conversion

## Related content

- [Fancy Text and Unicode Styling Workflow](https://elysiatools.com/en/hubs/fancy-text-unicode-styling): Turn plain text into Unicode styles, compare how readable they remain, and check compatibility, reversibility, accessibility, and safe copy-paste behavior before publishing.
- [Unicode, Emoji, and Invisible Character Debugging](https://elysiatools.com/en/hubs/unicode-emoji-debugging): Find hidden or confusable Unicode characters, inspect emoji and domain representations, normalize only when justified, and verify the cleaned copy before it reaches search, URLs, forms, or parsers.
- [Text Encoding, Width, Date, and Currency Conversion Workflow](https://elysiatools.com/en/hubs/text-convert): Prepare imported or copied text for reuse by recovering its encoding, choosing a character-width convention, standardizing inline dates or currency, and selecting a final text representation.