# Free tools

Free tools for certified backflow prevention assembly testers and backflow testing companies. You need no account.

- [Backflow test due-date and reminder planner](https://backflowtesters.fyi/tools/backflow-test-reminder-planner.md): Plan an annual test anniversary and a reminder. Your utility notice sets the actual deadline.
- [Backflow assembly identifier](https://backflowtesters.fyi/tools/backflow-assembly-identifier.md): Use visible features to suggest RP, DC, PVB or SVB. Confirm the nameplate with a tester.