Sonnet (software)

Sonnet
Original author	KDE
Developer	KDE
Stable release	6.28.0  / 10 July 2026 (10 July 2026)
Type	Spell checker
Website	api.kde.org/sonnet-index.html
Repository	invent.kde.org/frameworks/sonnet

Main article: KDE Frameworks

Sonnet is a multilingual spell checker program in KDE Frameworks. Sonnet replaced kspell2 from KDE3 in KDE Software Compilation 4. The two main goals for Sonnet's development were a simpler API, wider language support and performance. Notable improvements in Sonnet over kspell2 are:

• In automatic language detection, a language can be identified with as little as 20 characters of text. Even multiple languages in the same document can be detected and spell checked correctly
• Better performance
• Improvements in spell checking languages like Thai and Japanese
• A simpler design - kspell2 consisted of 7 components and a complicated API. Sonnet is a single component and aims to provide a simpler API
• The user can select a primary and backup dictionary, an example given was a doctor who frequently uses terms from a medical dictionary. Words that would not appear in a regular dictionary would be corrected by the backup dictionary that contains medical terms.

See also

• Enchant (software)

External links

• Article on Sonnet
• Developers blog Archived 2011-03-12 at the Wayback Machine