Convert LastPass Authenticator JSON export to Aegis. This does not access your LastPass account or interact with any external resources for security. Please remember to delete your export files after you have imported them to Aegis as they could be used to retrieve your tokens.

lp_aegis_convert.md

This script is now in a repository: https://github.com/tghw/lastpass_aegis_convert

I got an error due to Aegis not accepting spaces in secret strings; instead, it would just throw an error and become unusable until data storage is cleared (or the app is reinstalled). But as the spaces are just for readability anyway, they can safely be removed. Implementing both changes, by me and @Herjan, gives us the following script:

import json
import argparse
from pathlib import Path

def main(path):
    lp_json = Path(path)
    with open(lp_json) as fd:
        lp_data = json.load(fd)
    ae_entries = []
    ae_data = {
        "version": 1,
        "header": { "slots": None, "params": None },
        "db": { "version": 2, "entries": ae_entries },
    }
    for account in lp_data.get("accounts", []):
        entry = {
            "type": "totp",
            "uuid": account.get("accountID"),
            "name": account.get("userName", ""),
            "issuer": account.get("originalIssuerName") if len(account.get("originalIssuerName", "")) > 0 else account.get("issuerName", ""),
            "note": None,
            "favorite": account.get("isFavorite", False),
            "icon": None,
            "info": {
                "secret": account.get("secret").replace(" ", "") if "secret" in account else None,
                "algo": account.get("algorithm"),
                "digits": account.get("digits"),
                "period": account.get("timeStep"),
            },
        }
        ae_entries.append(entry)
    ae_json = lp_json.parent / f"aegis_{lp_json.name}"
    with open(ae_json, "w") as fd:
        json.dump(ae_data, fd)
    print(f"Converted. Export file: {ae_json}")


if __name__ == "__main__":
    parser = argparse.ArgumentParser("LastPass Authenticator to Aegis JSON Converter")
    parser.add_argument("filename", help="LastPass Authenticator JSON File")
    args = parser.parse_args()
    main(args.filename)

Thanks! I've converted this to a repo, which can be found at: https://github.com/tghw/lastpass_aegis_convert

Thank you. Your code inspired me to write an analogue in typescript for node.js. :)
https://github.com/denisemenov/lastpass-auth-export

Thank you. Your code inspired me to write an analogue in typescript for node.js. :) https://github.com/denisemenov/lastpass-auth-export

🙌