VoikkoSpellService

The component integrates the open‑source Voikko Finnish language checker into macOS’s Cocoa spell‑checking service, allowing any application that uses the system’s spell‑checking API—such as Safari, Mail, and TextEdit—to access Finnish orthography verification. It operates on Intel‑based macOS versions starting with 10.5 and also supports macOS 11 or newer on both Intel and Apple Silicon hardware. The service relies on the underlying Voikko library, which handles spelling and hyphenation, though the current mac only provides spelling checks.

Developers and end users who need Finnish language support in native macOS applications can install the service via Homebrew Cask or by copying the provided DMG package, following the README instructions. The project is maintained as a stable release, with a history of beta and alpha versions for earlier macOS releases. It originates from the Voikko project and continues development under contributors such as Marko Wallin.