Three export formats
Choose XLSX for a spreadsheet, CSV for line-item rows, or JSON for structured invoice data.
BROWSER-BASED DOCUMENT EXTRACTION
Invoice PDF to Excel, without sending your invoices away.
DocuExtract is a free, open-source web tool that converts invoice PDFs to Excel (XLSX), CSV and JSON entirely in your browser. It extracts structured invoice data, gives you a review screen before export, and processes files without an application backend, account, database, analytics or telemetry.
- Text-based PDFs, up to 100 pages
- Review extracted data before export
- Formula-injection-safe exports
PROCESSING PIPELINE · DIAGRAM
Conceptual diagram of the documented workflow, not a product screenshot.
THE WORKFLOW
How does DocuExtract work?
DocuExtract takes a text-based invoice PDF through four steps, with a review opportunity before you export the results.
- 01
Select a PDF
Open the live app and choose a text-based invoice PDF. Documents can contain up to 100 pages. Scanned image-only PDFs are not supported yet.
- 02
Extract invoice fields
The browser reads document text and applies heuristic rules to identify invoice information and line items. Results depend on the document's layout.
- 03
Review and correct
Inspect the extracted information before export. Confirm flagged numeric dates and correct unusual line-item rows when necessary.
- 04
Export your data
Export the reviewed invoice as XLSX or JSON, or export line items as CSV. The CSV format contains line items only.
BUILT INTO THE WORKFLOW
Useful controls, with review kept in your hands.
The product focuses on structured export and transparent review rather than promising perfect extraction from every invoice design.
Review before export
Inspect extracted values before using them elsewhere. Every result requires human review for consequential use.
Date confirmation
Numeric dates such as 05/09/2026 are interpreted as DD/MM/YYYY and flagged for confirmation.
Validated data
Extracted data is validated with Zod, and exports apply formula-injection sanitization.
PRIVACY ARCHITECTURE · DIAGRAM
How does local processing protect invoice privacy?
The app processes selected PDF files in the browser; application code does not upload invoice files to a backend.
Your PDFSelected locally
Your browserExtract · validate · review
Your exportXLSX · CSV · JSON
Conceptual privacy architecture diagram. It does not depict a network capture.
DocuExtract has no application backend, account, database, analytics or telemetry. Invoice data is not written to URLs, localStorage or sessionStorage. PDF buffers are released and documents are destroyed after processing. React rendering does not use dangerouslySetInnerHTML. You can independently inspect the browser's network tab to verify network activity while using the app.
Local processing describes the application's design, not a guarantee about every aspect of your device, browser, extensions or hosting provider. Read the privacy information and review the repository privacy document.
INTENDED AUDIENCES
Who can use an invoice PDF to Excel extractor?
DocuExtract may help people who need to turn text-based invoice documents into data that can be reviewed and reused.
Accountants
Review invoice fields and export structured data for subsequent accounting workflows, after checking every extracted value.
Bookkeepers
Move line items into a CSV workflow or review the full invoice in XLSX or JSON.
Freelancers
Convert supported invoices without creating an application account or sending the PDF to an application backend.
Finance teams
Inspect extracted invoice details before deciding whether they are suitable for a downstream process.
DOCUMENT COMPATIBILITY
Which invoice PDFs are supported?
Text-based PDFs are supported; compatibility depends on the document and how its content is arranged.
| Document type | Status | Practical guidance |
|---|---|---|
| Text-based PDF | Supported | Review all extracted values before export. |
| Multi-page invoice | Supported | Up to 100 pages. |
| Scanned or image-only PDF | Not supported yet | OCR is planned for Phase 2. |
| Password-protected PDF | Limited | Encrypted files are rejected unless already decrypted. |
| Corrupt PDF | Not supported | Use a valid, readable PDF. |
| Handwritten invoice | Not guaranteed | Check the result manually; handwritten recognition is not guaranteed. |
| Multiple invoices in one PDF | Planned | Use one invoice per PDF. |
Extraction is heuristic. Labels and values need to be on the same line or in neighbouring columns of the same row. A label above its value is not read. Line-item detection uses column gaps and table headers, so unusual tables may need manual correction on the review screen.
For accounting, tax, payment or legal use, review every output and independently verify important fields against the original document. DocuExtract is a data-extraction aid, not a substitute for professional verification.
A PRACTICAL COMPARISON
DocuExtract vs cloud upload converters
This comparison describes the documented processing design, not a claim about any specific competing product.
| Category | DocuExtract | Cloud upload converter |
|---|---|---|
| File processing | Processed locally by the application in your browser. | May upload documents to a remote service, depending on the provider. |
| Account | No application account. | Requirements vary by provider. |
| Application backend | No application backend. | Remote processing may use provider infrastructure. |
| Review before export | Includes a review screen. | Workflow varies by provider. |
| Scanned PDFs | OCR is planned, not currently supported. | Support varies by provider. |
| Verification | Every result needs review before consequential use. | Verification requirements depend on the workflow and output. |
LICENSING AND STATUS
What is the licence for DocuExtract?
DocuExtract's current released version is open source under the MIT License. The following statement describes the developer's stated licensing plan.
DocuExtract v1.0.0 is open source under the MIT License. The developer plans to offer future production versions under a commercial licence. Versions already released under MIT remain available under MIT.
Review the source repository for the published licence and current release files. The stated plan does not change the licence of versions already released under MIT.
QUICK ANSWERS
Frequently asked questions
These short answers cover privacy, file support, exports and safe use.
Are my invoice PDFs uploaded?
Application code processes invoice files locally in your browser and does not upload them to an application backend. You can inspect the browser's network tab to verify network activity.
Can DocuExtract read scanned invoices?
Not yet. Scanned and image-only PDFs require OCR, which is planned for Phase 2 and is not a current feature.
Which export formats are available?
DocuExtract exports XLSX, CSV and JSON. CSV contains line items only; XLSX and JSON contain the full invoice.
Can I trust the extracted values without checking them?
No. Extraction is heuristic, and every output must be reviewed before accounting, tax, payment or legal use.
Can one PDF contain several invoices?
The current workflow supports one invoice per PDF. Multiple invoices per PDF are planned for Phase 2.
What is the current licence?
DocuExtract v1.0.0 is open source under the MIT License. The developer plans to offer future production versions under a commercial licence. Versions already released under MIT remain available under MIT.