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What is that?

T9 – is the words predict algorithm (wiki) for mobile phone. Here you can try one of its implementations!

Why is that?

You can use it to convert digits, numbers, PIN-codes into words to make it easier to remember.


  • words search in Russian and English (btw you can easily add any new language)
  • num keyboard with digits and letters corresponding to Nokia keyboard (except * and #)
  • spaces between digits, 0, 1 - all of them are used as words separators
  • it uses Trie (prefix tree) to provide fast* search in T9 words database (more…)