Here’s a list of free / open-source tools I built for different clients. I hope they’ll help you to automate everyday tasks. Please welcome to send me any feedback, questions or PR.

GTM-GEAR

Open source Python library to automate everyday Google Tag Manager tasks.

MeasureMinds GtmCleaner

Free web tool to rename GTM tags, triggers, variables. Also supported: GA3->GA4 migration, GA3 auto-events. Works by GTM API or by exported .json container. Built for MeasureMinds Agency.