Abstract
Text modification is essential to adjust the lexical level of texts for various purposes. This study describes how an online lexical analyzer of Japanese texts named J-LEX was developed. After putting a target Japanese text in the input window, J-LEX returns the lexical frequency profile (a table for the proportion of text coverage by vocabulary frequency level) and the analysis result window where words beyond the designated frequency level are highlighted in red. J-LEX is expected to facilitate and simplify the analysis of the lexical level and the lexical adjustment of texts.
