CSVKeychain AppleScript script
This repo contains scripts to export all your password items and secure notes from Apple's Keychain.app into plain text files in CSV format, merge such files and import them back into a keychain.

No trick or reverse engineering is used: exporting is performed by Apple's security tool, using macOS's assistive support to streamline the process.

The current master should work in (High) Sierra. Earlier versions of macOS/OS X are not supported.