About miChecker
miChecker is a support tool for Web accessibility evaluation that developed on top of ACTF SDK. It was developed by the Japanese Ministry of Internal Affairs and Communications (MIC) to support Web accessibility improvements based on JIS X 8341-3 in Japanese government offices. In addition to supporting accessibility evaluation work, the tool is designed to support learning Web accessibility through their work. To download this tool, please visit miChecker download page (in Japanese, Jump to MIC Web site) .
MIC contributed the source code and documentation of miChecker to ACTF to continue the open and transparent development into the future.
Notice: Vulnerability in miChecker (July 30, 2026)
A vulnerability related to XML External Entity (XXE) processing has been identified in miChecker.
Please review the vulnerability information below and update to the latest version of miChecker and source code.
XML External Entity (XXE) Vulnerability in Eclipse ACTF (including miChecker)
miChecker build instruction
To build a miChecker, please follow instructions below.