NACHA to CSV Converter - ACH File Parser

Convert NACHA ACH files to CSV spreadsheets. Parse US payroll and payment batches. Browser-based, secure, no uploads required.

Drop NACHA/ACH file here or click to browse

Supports .ach, .nacha, .txt files

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Frequently Asked Questions

NACHA (National Automated Clearing House Association) files are the standard format for ACH (Automated Clearing House) transactions in the US, used for payroll, direct deposits, and bill payments.

All standard NACHA records: File Header (1), Batch Header (5), Entry Detail (6), Addenda (7), Batch Control (8), and File Control (9). Each type has fixed-position fields.

Yes. All processing happens locally in your browser. Your financial data never leaves your device, ensuring complete privacy for sensitive payroll information.

Transaction amounts, routing numbers, account numbers, names, company IDs, effective dates, and addenda records. Batch totals are also captured.

Export from payroll software (ADP, Paychex, Gusto), accounting systems, or your bank's cash management portal. Files typically have .ach or .nacha extension.

NACHA files have 94-character fixed-width records. Each line is exactly 94 characters with no delimiters. Fields are identified by their position.

Yes. NACHA files often contain multiple batches (e.g., payroll + vendor payments). Each batch is parsed with its entries and totals.

Standard Entry Class codes identify transaction types: PPD (payroll), CCD (corporate), WEB (internet), TEL (telephone). These are shown in the output.

NACHA amounts are in cents without decimal points. The converter displays them as dollars with two decimal places for readability.

Basic validation is performed (record lengths, hash totals). For full NACHA compliance checking, use dedicated ACH validation software.

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