Three try-it-live utilities. One-shot, no persistence — your .p12 and passwords never leave the request. None of these count against your monthly e-CF quota.
Upload DGII's postulación XML + your .p12 + password. We sign it inline and stream the result back. Your very first DGII step.
Paste any signed e-CF / ACECF / ARECF XML. See digest match, signing time, cert subject, KeyInfo — entirely in your browser.
Compose a valid EcfIssueRequest via form. Copy as JSON, curl, or raw HTTP — ready to paste into your client.
Want context on which utility fits which problem? Read the sandbox testing guide — it covers the decision tree, the privacy contract, and what each tool does and doesn't do.