The following languages have translations for CodeIgniter 3, but not yet for CodeIgniter 4:
| Locale | Language | User | Maintainer |
|---|---|---|---|
| hy | Armenian | tgrnmrdn | Tigran Muradyan |
| az | Azerbaijani | Qarakom | Sübhan Cabbarov |
| bn | Bengali | kabircse | Kabir Hossain |
| bg | Bulgarian | ivantcholakov | Ivan Tcholakov |
| ca | Catalan | Ignasimg | Ignasi Molsosa |
| hr | Croatian | PaleRider981 | Mario Ljubicic |
| cs | Czech | Ruplahlava | Štěpán Postránecký |
| da | Danish | janhansson* | Jan Hansson |
| nl | dutch | pkrul | Pieter Krul |
| fil | filipino | dzerium | Edzer Josh V. Padilla ... See note below |
| gu | Gujarati | sajid19991 | Sajid Mathupotra |
| hi | Hindi | shindesushilkumar | Sushilkumar Shinde |
| hu | Hungarian | orionstar | László Bóra |
| ja | Japanese | ? | ? |
| km | Khmer | Chanthoeun | Chanthoeun Kim |
| lv | Latvian | DavisMiculis | Davis Miculis |
| fa | Persian | MSDehghan | Mohammad Sadegh |
| ro | Romanian | CodefishRo | Cristian Robert Chiribuc |
| sr | Serbian | novakurosevic | Novak Urosevic ??? |
| sl | Slovenian | andrejflorjancic | Andrej Florjančič |
| sv | Swedish | peterdenk | Peter Denk |
| ta | Tamil | karthik-code | Karthikeyan |
| th | Thai | ? | ? |
| uk | Ukranian | flybot | Sergiy Kosiy |
| ur | Urdu | codeonion | Muhammad Ali |
| vi | Vietnamese | tinhphaistc | Trần Xuân Sâm ??? |
Notes:
- Filipino has a 639-2 code, while tl (Tagalog) is the 639-1 code; which to use?