ACH file generator

Build a PPD or CCD ACH file without a spreadsheet. Free, no signup, and your file is processed locally in your browser.

Primary topic: ACH file generator

By Updated Contact
1

ACH file details

Enter your ACH settings, or load fictitious sample data to explore the generator.

Batches
1
Entries
1
Addenda
0
Credits
$0.00
Debits
$0.00
Entry hash
0000000000
2

Entries

#RoutingAccountReceiverAmountTx CodeTraceAddendaActions
1.1
3

Validation

Complete the file details and entry fields, then select Generate ACH file to run validation.

Output: ach-payments.ach

What can this ACH file generator help you do?

The ACH file generator builds a PPD or CCD NACHA file from manually entered originator, batch and receiver information. Use this ACH file generator as a practical first step, then review its results carefully. use only approved originator information and obtain required authorizations before initiating real entries.

When should you use the ACH file generator?

A reliable ACH file generator workflow starts by confirming the business purpose before changing or exporting any data. This page is designed for builds a PPD or CCD NACHA file from manually entered originator, batch and receiver information. It performs the supported work locally, so the source does not need to be sent to a conversion service. Use the ACH file generator with an approved source and a clearly defined expected result.

How do you use the ACH file generator?

  1. 1

    Prepare input for the ACH file generator

    Start with your bank and company settings plus one or more receiver entries with routing, account, amount and transaction type. Work from a copy, preserve leading zeros and remove unrelated report headings or totals that could be mistaken for transaction data.

  2. 2

    Run and review the ACH file generator

    Use the on-page controls, then compare the displayed batch count, entry count, total debits and total credits with the source expectation. Investigate warnings instead of assuming that a downloadable result is correct.

  3. 3

    Validate before operational use

    The expected result is a complete ACH file with correctly positioned records and recalculated control values. Before transmission or downstream import, review ODFI identifiers, company ID, SEC code, effective date, service class, transaction codes, totals and trace numbers, save the source separately and follow your organization’s approval process.

What common ACH file generator problems should you check?

The input is not recognized

Confirm that the selected input really contains your bank and company settings plus one or more receiver entries with routing, account, amount and transaction type. A renamed extension does not convert a spreadsheet, PDF or binary export into a valid ACH-related source.

The ACH file generator reports unexpected totals

Compare entries one batch at a time. Missing rows, duplicated rows, amount scaling, debit-versus-credit selection and malformed addenda can all change counts or monetary totals.

The file validates but the bank rejects it

Format validation does not verify enrollment or bank policy. use only approved originator information and obtain required authorizations before initiating real entries. Ask the ODFI for the rejection code and compare it with the company profile, identifiers and processing date.

What belongs on a ACH file generator review checklist?

  • Routing numbers, account numbers and identifiers retain required leading zeros.
  • Debit and credit totals, entry counts and addenda counts reconcile.
  • Effective dates, SEC codes, service classes and transaction codes are appropriate.
  • A second reviewer has checked ODFI identifiers, company ID, SEC code, effective date, service class, transaction codes, totals and trace numbers before production use.

Frequently asked questions about the ACH file generator

What does the ACH file generator do?

It builds a PPD or CCD NACHA file from manually entered originator, batch and receiver information. The ACH file generator processes the data locally in your browser and does not require an account.

What input does this tool need?

It needs your bank and company settings plus one or more receiver entries with routing, account, amount and transaction type. Files remain on your device during processing.

What will I get from the tool?

You will get a complete ACH file with correctly positioned records and recalculated control values. Review the result before using it in an operational workflow.

What should I verify before using the result?

Check ODFI identifiers, company ID, SEC code, effective date, service class, transaction codes, totals and trace numbers. Also remember that use only approved originator information and obtain required authorizations before initiating real entries.

How should I prepare data for the ACH file generator?

Collect your bank and company settings plus one or more receiver entries with routing, account, amount and transaction type. Keep the bank-approved company settings separate from receiver details so they can be reviewed independently before generation.

Does the tool calculate NACHA control records?

Yes. Entry and addenda counts, routing hashes, debit and credit totals, batch controls, file controls, block count and type 9 padding are rebuilt from the current entries.

Can I generate a file without receiver authorization?

The software can create a technical file, but it cannot establish authorization. You remain responsible for the authorization, notice, timing and record-retention requirements that apply to each entry.

Should I save the generated settings for later?

Record approved company and ODFI settings in your controlled internal documentation. Recheck them whenever your bank relationship, account, SEC code or processing instructions change.

Which authoritative sources support this page?

Technical explanations are checked against these primary sources. Bank-specific requirements can be narrower than general format guidance.

  1. Nacha ACH File DetailsOfficial record-field guidance, including Batch Header SEC codes and addenda capabilities.
  2. Nacha ACH File OverviewOfficial explanation of files, batches, entries, controls, and batch grouping.
  3. Nacha: How ACH WorksOfficial overview of ACH participants, consumer and corporate payments, and authorization responsibilities.
  4. Nacha Operating Rules TopicsCurrent rule changes and implementation topics published by Nacha.

Sources reviewed August 20, 2026. Nacha owns and maintains the linked materials.

What should you know about ACH/NACHA files?

ACH files use the NACHA fixed-width format: every record is 94 characters, files contain one or more batches, and control records reconcile entry counts, routing-number hashes, debits and credits. Always confirm bank-specific settings with your financial institution before uploading a production file.

Free ACH File Generator — Create NACHA Files Online | ACH File Converter