MerMark Editor 0.8.1 adds Japanese interface
The Japanese localization of the Mermaid-capable Markdown editor arrived through a volunteer contribution and must be enabled in the settings screen.
MerMark Editor, a Markdown editor that supports Mermaid diagrams, gained a Japanese user interface in version 0.8.1, released on October 12, according to forest.watch.impress.co.jp. The localization came from a volunteer contribution.
Japanese is not offered during setup, which presents only English and Polish as options. Users enable Japanese by changing the language setting in the settings screen after installation.
The app is a desktop program built with the cross-platform framework Tauri. It stores documents locally without cloud dependency and offers WYSIWYG editing, and it supports Marp presentations with live preview and a full-screen presentation mode.
MerMark Editor also provides multiple-root workspaces and an AI assistant that connects to the Claude Code and Codex CLIs as well as Ollama for local models. It runs on Windows, macOS and Linux.
The project is open source, hosted on GitHub under the MIT license, and can be downloaded free from its release page. The app is not code-signed, so warnings may appear at download or on first launch. The pull request author described the localization work in an article on Zenn. Vesperino is listed as the software's copyright holder.
Quick answers
How do I switch MerMark Editor to Japanese?
Japanese is not available in the setup wizard, which offers only English and Polish. Open the settings screen and change the language setting to Japanese.
Which version of MerMark Editor added Japanese?
Japanese support was added in version 0.8.1, released on October 12.
Is MerMark Editor free?
Yes. It is an open-source project on GitHub under the MIT license and can be downloaded free from its release page.