Enno is a web service tool that specializes in checking for explicit errors in Japanese texts, including typos, misspellings, grammar mistakes, input errors, character encoding issues, misuse, and spacing errors. This service is particularly useful for proofreading errors in formal documents and all types of Japanese texts. Enno also allows the inclusion of sentences in languages other than Japanese, such as English.

It's important to note that the services provided by Enno