ACH Validator
Upload your ACH file. Get clear, actionable results — not cryptic NACHA spec errors.
Instant File Validation
Upload your ACH files and get comprehensive validation results in seconds. Our validator checks for formatting errors, invalid data, and compliance issues.
- Supports .txt and .ach file formats
- Validates up to 10MB files
- Real-time validation feedback
- Detailed error reporting with line numbers
Errors That Explain Themselves
Most validators say “field 3 invalid.” Ours tells you what's wrong, where it is, and how to fix it. Issues are categorized by severity so you know what to tackle first.
- Errors: Critical issues that will cause rejection
- Warnings: Potential problems worth reviewing
- Info: Best practice suggestions
- Each message explains what to fix, not just what failed
File Content Preview
View your file content alongside validation results. Jump directly to problem areas with clickable line references.
- Syntax-highlighted file preview
- Line numbers for easy reference
- Click errors to jump to location
- Copy file content with one click
Validate on Your Terms
Not every file needs the same checks. Toggle validation options to match your workflow — whether you need strict NACHA compliance or a quick format check.
- Enforce full NACHA spec compliance or allow common shortcuts
- Verify routing numbers
- Flag entries with effective dates outside acceptable windows
- Adjust options before each upload — no configuration files to edit
What We Validate
Comprehensive checks across all ACH record types
File Structure
Record counts, blocking factors, and file organization
Batch Headers
Company information, SEC codes, and effective dates
Entry Details
Account numbers, routing numbers, and transaction codes
Control Totals
Hash totals, debit/credit balancing, and entry counts
See What's Wrong Before Your Bank Does
Upload a file, get results in seconds. No signup required for your first validation.
Validate Your First File Free