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OpenInvoice

Free#28 of 30 in Invoice Processing SoftwareNES Emulators

OpenInvoice: A free, open-source extractor with review and exports, but limited AP workflow coverage. Ranked #28 of 30 in Invoice Processing Software by our editors (5.2/10); pricing: Free plan; best for technical teams wanting open-source invoice extraction.

5.2/10Editor score
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At a glance

  • Editor score
    5.2 / 10
  • Pricing
    Free plan
  • Best for
    Technical teams wanting open-source invoice extraction
  • Free plan
    Yes
  • Paid from
    Free
  • OCR or AI extraction
    Yes
  • Facts checked
    19 Sep 2026
OpenInvoice screenshot

  • Where it wins

    • Free, open-source deployment across web, API, and self-hosted environments
    • Extracts invoice fields and line items from PDF, PNG, and JPG files
    • Review, corrections, exports, dashboards, and webhook ingestion are included

  • Where it doesn't

    • No verified purchase-order matching is included
    • Approval routing is not covered for end-to-end AP workflows
    • Duplicate invoice detection is not included

Our verdict on OpenInvoice

OpenInvoice is an open-source invoice data extraction application for organizations turning PDF, PNG, or JPG invoices into structured records. It is aimed at technical teams that want control over deployment through web, API, or self-hosted options. The product extracts supplier, client, invoice number, dates, totals, tax, currency, identifiers, and line items. It also supports CSV and JSON exports, making it suitable for teams that need extracted data for downstream processing rather than a complete accounts-payable suite.

Its standout capability is the cascading extraction pipeline. OpenInvoice combines regex extraction, invoice2data templates, and a MiniMax LLM fallback, then provides side-by-side review against the original document. Users can make inline corrections while retaining correction tracking. A dashboard covers invoice volume, success rates, supplier distribution, and LLM costs. Webhook invoice ingestion is available through the API, while documented connections include Microsoft Teams, Outlook or email, OneDrive or SharePoint, and the Webhook API. This combination suits teams that value configurable extraction and visibility into processing behavior.

OpenInvoice is a strong fit when invoice capture, review, correction, export, and monitoring are the main requirements. Its free and open-source model can also suit organizations that prefer self-hosted deployment or want to connect extraction to internal systems. It is less suitable for teams seeking a broader end-to-end AP workflow: verified purchase-order matching, approval routing, and duplicate detection are not covered. Those requirements call for an alternative with deeper process controls. OpenInvoice is therefore best considered an extraction layer with review and integration options, rather than a full invoice-processing suite.

Your product? Our editors can test OpenInvoice in depth and publish a review, labelled as paid · from $149/mo →

OpenInvoice pricing

Plans Free planFree Free to use — no paid tier required for the core job.
See plans on github.com

OpenInvoice fact sheet

Free planYes
Paid fromFree
OCR or AI extractionYes
Line-item extractionYes
PO matchingNot verified
Approval routingNot verified
Accounting integrationsYes
Duplicate detectionNot verified
Included invoicesNot verified
DeploymentCloud, Self-hosted
PlatformsWeb
Integrations4 integrations: Microsoft Teams, Outlook/email, OneDrive/SharePoint, Webhook API
PricingFree plan
Websitegithub.com
Facts checked19 Sep 2026

OpenInvoice integrations

OpenInvoice lists 4 integrations on its own site.

  • Microsoft Teams
  • Outlook/email
  • OneDrive/SharePoint
  • Webhook API

Alternatives to OpenInvoice

See all OpenInvoice alternatives →

Also Ranked In

OpenInvoice is ranked in 2 of our directories.

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Featured on iTechGuides

Featured on iTechGuides — OpenInvoice 5.2/10

OpenInvoice is listed in our Invoice Processing Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

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