Complete KSeF (Krajowy System e-Faktur) e-invoicing integration for Dolibarr - FA(3) submission, corrections, incoming import, multicurrency. AGPLv3+.
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May 21, 2026 - PHP
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fa3
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🧾 Free, open-source KSeF FA(3) invoice validator. XSD + semantic rules, runs in the browser. CLI & npm package included.
open-source typescript xml nextjs xsd validator webassembly invoice poland faktura e-invoicing ksef fa3
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Apr 21, 2026 - TypeScript
REST API i usługa Docker do generowania wizualizacji PDF polskich faktur KSeF i dokumentów UPO
nodejs docker typescript microservice rest-api invoice taxation poland pdf-generator polish fiscal xml-to-pdf faktura upo ksef fa3
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Jan 22, 2026 - TypeScript
✨ A curated list of KSeF tools and resources
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Mar 26, 2026
REST API i usługa Docker do generowania wizualizacji PDF polskich faktur KSeF i dokumentów UPO
nodejs docker typescript microservice rest-api invoice taxation poland polish pdf-generation fiscal xml-to-pdf faktura upo ksef fa3
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Apr 3, 2026 - TypeScript
Official PHP SDK for the NaprawKSeF API (KSeF, FA(3), webhooks). Zero runtime dependencies, PSR-18 compatible.
php webhooks api-client php-sdk ksef fa3 ksef-api krajowy-system-e-faktur ksef-sdk fa-3 naprawksef polish-einvoicing
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May 25, 2026 - PHP
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