Northeast Asia OSS Forumの第3ワークグループによるSpecification of IM engine Service Provider Interfaceのドラフトは、D-Busのようなバス (コンピュータ)の実装を伴うバス中心のインプットメソッド構造を推奨した。その仕様書によれば、SCIM-1.4はC++で開発されている点で開発にあまりに適さないと考えられる。それはアプリケーションバイナリインタフェース (ABI) の変遷による問題でよく引き起こされる。
ibus-cangjie: An engine for the Cangjie input method.
ibus-canna: Canna of the NEC company (now SourceForge). Only for distributions of Debian and openSUSE compatibles.
ibus-chewing: An intelligent Chinese Phonetic IME for Zhuyin users. It is based on libChewing.
ibus-hangul: A Korean IME.
ibus-m17n: A m17n IME which allows input of many languages using the input methods from m17n-db. See more details in #ibus-m17n.
ibus-mozc: A plugin to the Japanese IME "mozc" developed by Google.
ibus-pinyin: An intelligent Chinese Phonetic IME for Hanyu pinyin users. Designed by IBus main author and has many advanced features such as English spell checking.
ibus-skk: A Japanese SKK input engine for IBus.
ibus-table: An IME that accommodates table-based IMs. See more details in #ibus-table.
ibus-unikey: An IME for typing Vietnamese characters.