Japan GX Group Releases GHG Emissions Tool OpenGreenTrack as Open Source
Releasing the calculation code under a permissive license puts the emissions-factor basis in companies' own hands, which matters for a reporting field where traceability of factors has been the sticking point.
Reporting from 1 source: ASCII.jp.
Japan GX Group released OpenGreenTrack, a greenhouse gas emissions calculation and management tool for companies, on September 9, 2026. All source code is published under the Apache License 2.0 with no license cost, and companies can run the data in their own environments. The company is also recruiting participants for a co-creation proof of concept.
OpenGreenTrack handles calculation across Scope 1, 2, and 3 and runs in a company's own environment, with the full source available under the Apache License 2.0 at no license cost. The company, which runs the Japan Carbon Credit Exchange, describes the premise as knowing your emissions being the starting point for decisions rather than the end point.
It also opened recruitment for a co-creation PoC, in which participating companies jointly verify the effects of adoption.
Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.