Audits a payroll deduction code map before January W-2 filing: pre-tax flags, Box 12 letters, duplicate codes, stale plan years. Every broken line is named with its line number. Runs entirely in your browser — nothing is uploaded.
Free here: Every deduction code in the open map is audited against twelve rules and each broken line is named with its line number.. In the editor: Audits every deduction map in the workspace at once and writes a dated exposure report you keep as the payroll audit trail. — that part asks for a licence key.
Same engine as the VS Code extension, byte for byte.