About Loclint
日本語版はこちらWho runs this site and why, and how the articles on it are made.
What Loclint is
Loclint checks game localization files (CSV / JSON) for the bugs players notice first: deleted placeholders, untranslated strings, inconsistent terminology, and text that overflows its limit. A deterministic rule engine catches what is broken; an AI review pass flags what merely reads wrong — honorific drift, translationese, a line that breaks character.
It is not a replacement for translation management tools such as Lokalise or Crowdin. It is the last check before shipping: whether the strings that came out of those tools actually work in the game. There is a free tier (500 strings checked a month) and an MCP server so AI coding agents such as Claude Code can run the same checks from the editor.
It is built in Japan, by its operator. Japanese — with its dropped subjects, shifting honorifics, and character voice carried by word choice — is one of the hardest languages to QA from the outside, and the checks are designed against that bar, then applied the same way to every language you ship.
Operator
Loclint is developed and run by one person, based in Kyoto, who also builds and operates other web services — including MottoSuitai, a map of smoking areas across Japan.
- Operator
- Kota Morikawa
- Location
- Kyoto City, Kyoto, Japan (full address disclosed without delay on request)
- Form of business
- Sole proprietorship
- Other services
- MottoSuitai (mottosuitai.com), a smoking-area map of Japan
Seller name, terms of sale, and cancellation details are on the legal notice (Tokushoho).
How the blog is written
The articles are for game developers — solo and studio — and for anyone translating or checking game text, or planning a first release outside their home market. They cover taking a game abroad, adding languages, file formats, localization QA, language-specific pitfalls, and working with translators, written to be used at work rather than read as background.
- Official documentation, public bodies, industry associations, and primary sources come first; what cannot be verified is not stated as fact.
- Nothing is described as tried or experienced unless it was. Exaggeration and misleading framing are avoided.
- Articles are planned and supervised by the operator. Before publication each one is reviewed against the site's editorial guidelines; articles that do not meet them are rewritten.
- Every article is published in both English and Japanese, with a link between the two versions at the top of the page.
- If you find an error or something that has gone out of date, send it through the contact form. It will be checked and corrected.
Advertising and affiliate links
This site takes part in the Amazon Associates Program. The recommended-books page and some articles link to Amazon.co.jp, and the operator may earn a referral fee on purchases made through those links. Which books are recommended, and what the articles say, is not influenced by that.
The site may also show advertising served by Google AdSense. How cookies are used for this is described in the privacy policy.
Contact
Questions, corrections, and business inquiries all go through the contact form.