# apphelp tool profile
name: Full Half Width Converter
tool: tool-fullhalfwidth
domain: fullhalfwidth.apphelp.net
canonical: https://fullhalfwidth.apphelp.net/en
summary: Convert ASCII punctuation, numbers, and letters between full-width and half-width forms locally.
inputs: Text containing full-width or half-width ASCII-compatible characters and optional space-conversion setting.
outputs: Text with matching characters converted to the selected width form.
use-cases: CJK typography cleanup; search keyword normalization; form input normalization
keywords: full width half width converter, fullwidth to halfwidth, halfwidth to fullwidth, ASCII width conversion
languages: en, zh-CN, zh-TW, ar, de, fr
seo: locale-routed, canonical, hreflang, sitemap, robots, JSON-LD
geo: llm.txt profile, concise task summary, input/output contract, use-case list, local-first privacy notes
privacy: browser-local processing, no upload by default
analytics: Microsoft Clarity and Google Analytics (opt-in)
no-login: true