Harold
Extracts, validates, and fixes business documents before they hit your ERP — invoices, receipts, purchase orders.
| What is it | Extracts, validates, and fixes business documents before they hit your ERP — invoices, receipts, purchase orders. |
|---|---|
| Pricing | Paid — from £19/mo |
| Free tier | No |
| Platform | Web Application |
| API | Yes |
| Works with | Zapier |
| Best for | processing incoming invoices and verifying totals, automating purchase order data entry into ERP systems |
| Domain registered | 2025 |
Data updated Aug. 1, 2026
What does Harold do?
Harold is a document automation tool that extracts, checks, and fixes business documents before they reach your systems. Upload an invoice, receipt, purchase order, or statement — or email it to a dedicated inbox — and Harold pulls out headers, totals, line items, and references. Where most document tools stop at extraction, Harold runs a rules engine to validate the data: it recalculates totals, flags mismatches, and alerts you to missing fields or incorrect supplier IDs. The result is clean, trustworthy data ready to export to your ERP, accounting software, or a Zapier flow.
The standout feature is the rules engine. You set up IF checks, formulas, and conditional logic — for example, if the total doesn't equal subtotal plus VAT, flag it. Supplier mapping lets you teach Harold that "DAVIDBRENT" equals supplier ID DB00001, and it remembers forever. Output templates shape the export to match exactly what your ERP expects — CSV, Excel, JSON, or a direct webhook. Harold also validates every line item, not just headers, checking quantities, unit prices, and line totals. It's straightforward: upload, review flagged issues, approve, and export.
The tool is built for accountants who are tired of chasing missing invoice data, operations teams automating purchase order processing, and small business owners who forward messy email attachments and want clean data in Sheets or their ERP. Pricing starts at £29/month for 250 extractions, with a founder rate of £19/month locked in forever. There's no setup calls or consultants — you just try it.
Key features
What makes it stand outWho is Harold for?
Who benefits most from this toolPricing
Founder
- 250 document extractions/month
- Saves ~4 hours of admin per month
- 3 active document boxes
- 5 automations
- 10 Output Templates
- Rules engine included
- Zapier integration
- Price locked forever — never increases
- Won't last — claim it while you can
Standard
- 250 document extractions/month
- Saves ~3 hours of admin per month
- 3 active document boxes
- 5 automations
- 10 Output Templates
- Rules engine included
- CSV & Excel export
- Zapier integration
- Email support
Premium
- 1,000 document extractions/month
- Saves ~12 hours of admin per month
- 10 active document boxes
- Unlimited automations
- Unlimited Output Templates
- All export formats
- Zapier integration
- Priority support
Enterprise
- 3,000 document extractions/month
- Saves ~35 hours of admin per month
- Unlimited document boxes
- Unlimited automations
- Unlimited Output Templates
- All export formats
- Zapier integration
- Dedicated support
Trust & presence
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