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Tadashii Kotoba – Natural Japanese & Business Keigo

ExtensionTools6 users
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Overview

Business (Keigo) • Natural Japanese • Proofread • Furigana • Read aloud. Works from English & Chinese.

Natural Japanese for work and daily life — on every website. Select text, choose a style, replace in place. • Business (Keigo) — turn casual Japanese into business-ready keigo • Proofread — fix grammar and particles, with every edit highlighted • Gmail — a Proofread button right next to Send • English or Chinese in, natural Japanese out • Furigana and read-aloud to check readings and pronunciation • Scene shortcuts — draft a late notice, apology, request, reminder or decline on the website, then copy it back HOW IT WORKS 1. Select text on any page (or right-click → Tadashii Kotoba). 2. Choose Business, Standard or Proofread. 3. Click Replace in text boxes, or copy the result. Try it without an account. Sign in free for a larger daily allowance, or go Pro for the most. Signed-in allowances are shared with the website. Text is sent only when you run an action, and we never sell it. Privacy: https://tadashii-kotoba.com/privacy Full guide & settings: https://tadashii-kotoba.com/extension Support: support@isshin.tech

Details

  • Version
    1.1.1
  • Updated
    November 4, 2026
  • Features
    Offers in-app purchases
  • Size
    121KiB
  • Languages
    3 languages
  • Developer
    ISSHIN TECHNOLOGY LIMITED
    Website
    Email
    admin@isshin.tech
    Phone
    +852 6278 2649
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
  • D-U-N-S
    773249824

Privacy

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Tadashii Kotoba – Natural Japanese & Business Keigo has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Tadashii Kotoba – Natural Japanese & Business Keigo handles the following:

Personally identifiable information
Authentication information
Personal communications
Location
Website content

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site

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