Attachly links every QuickBooks Desktop attachment to the right invoice, bill, and customer in QuickBooks Online — automatically. Free analysis, one flat fee, fully reversible for 30 days.
No QuickBooks Desktop install needed · files scanned locally, not uploaded · undo anytime for 30 days
Works even if you migrated years ago and QuickBooks Desktop is long uninstalled. All you need is the Attach folder that lives next to your old company file.
Authorize Attachly with Intuit OAuth. Accounting access only — we never see your password.
Your browser scans it locally and sends only a file list. Your documents stay on your computer.
See exactly how many files match — by Intuit's ID map, invoice details, and reading the documents themselves — before paying a cent.
Matched files upload and attach to the right records. You get a file-by-file verification report and a 30-day undo button.
Other tools make you zip gigabytes of invoices, contracts, and W-9s and upload all of it just to get a quote. Attachly scans your Attach folder locally in your browser and sends only a file list — names, sizes, and folder IDs. The free analysis runs on that manifest alone. After checkout, only the matched files upload, one at a time, straight into QuickBooks Online.
The hard part isn't uploading files — it's knowing which invoice each file belongs to. We stack four matching layers so you don't do it by hand.
If Intuit migrated your books, it left behind a desktop-to-online ID table. We use it for exact, zero-guess matches — most competitors don't.
Checks, deposit slips, and receipts with no reference number? We read the amount, date, and payee off the document and find the matching transaction.
Already have some attachments in QuickBooks Online? We detect them and skip — you'll never get double attachments, even on re-runs.
Outlook emails (.msg), oversized TIFFs and more get converted to PDF and attached — files Intuit's own migration simply drops.
One click removes every attachment we created, and nothing else. Try it on your real books with zero risk.
Every single file accounted for: attached, uploaded unattached, converted, or documented with the reason it couldn't migrate.
| Attachly | Intuit's free migration | Desktop import tools | Consultants | |
|---|---|---|---|---|
| Works after you've already migrated | ✓ Built for it | ✗ Migration day only | ✓ | ✓ |
| No spreadsheet editing | ✓ | ✓ | ✗ Manual mapping sheets | ✓ |
| Matches files with no invoice number | ✓ AI document reading | ✗ | ✗ | ✓ By hand |
| Converts unsupported file types | ✓ MSG, EML, TIFF → PDF | ✗ 9 types only | ✗ | Sometimes |
| Undo button | ✓ 30 days | ✗ | ✗ | ✗ |
| Typical cost | $299–1,199 flat | Free (at migration) | $155–350/yr + your weekend | $3,500–5,500 |
Run the analysis first — see your match rate and exact price before paying anything.
Connect QuickBooks Online, point us at your Attach folder, and get a file-by-file match report in minutes. Pay only if you migrate.
Get your free analysis