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Third-Party Licenses

Fast KSeF uses the following open-source libraries. We are grateful to the authors and contributors of these projects.

Frontend (main application)​

PackageVersionLicenseHomepage
@hookform/resolvers3.10.0MIThttps://react-hook-form.com
@lovable.dev/cloud-auth-js1.1.1MIT—
@radix-ui/react-*1.x–2.xMIThttps://radix-ui.com/primitives
@supabase/supabase-js2.103.0MIThttps://supabase.com
@tanstack/react-query5.83.0MIThttps://tanstack.com/query
class-variance-authority0.7.1Apache-2.0https://github.com/joe-bell/cva
clsx2.1.1MIT—
cmdk1.1.1MIThttps://github.com/pacocoursey/cmdk
date-fns3.6.0MIThttps://date-fns.org
embla-carousel-react8.6.0MIThttps://www.embla-carousel.com
input-otp1.4.2MIThttps://input-otp.rodz.dev
lucide-react0.462.0ISChttps://lucide.dev
next-themes0.3.0MIThttps://github.com/pacocoursey/next-themes
pdfmake0.3.7MIThttp://pdfmake.org
react18.3.1MIThttps://reactjs.org
react-day-picker8.10.1MIThttp://react-day-picker.js.org
react-dom18.3.1MIThttps://reactjs.org
react-hook-form7.61.1MIThttps://react-hook-form.com
react-resizable-panels2.1.9MIThttps://github.com/bvaughn/react-resizable-panels
react-router-dom6.30.1MIThttps://reactrouter.com
recharts2.15.4MIThttps://recharts.org
sonner1.7.4MIThttps://sonner.emilkowal.ski
tailwind-merge2.6.0MIThttps://github.com/dcastil/tailwind-merge
tailwindcss-animate1.0.7MIT—
vaul0.9.9MIThttps://vaul.emilkowal.ski
xml-js1.6.11MIThttps://github.com/nashwaan/xml-js
zod3.25.76MIThttps://zod.dev

REST API server​

PackageVersionLicenseHomepage
@akmf/ksef-fe-invoice-converter1.1.4-HF1ISC—
@supabase/supabase-js2.103.0MIThttps://supabase.com
express4.xMIThttps://expressjs.com
pdfmake0.3.7MIThttp://pdfmake.org
swagger-ui-express5.xApache-2.0https://github.com/scottie1984/swagger-ui-express
xml-js1.6.11MIThttps://github.com/nashwaan/xml-js

Build & development tools​

PackageVersionLicenseHomepage
@vitejs/plugin-react-swc3.11.0MIThttps://github.com/vitejs/vite-plugin-react
autoprefixer10.4.21MIT—
esbuild0.25.0MIThttps://github.com/evanw/esbuild
eslint9.32.0MIThttps://eslint.org
postcss8.5.6MIThttps://postcss.org
tailwindcss3.4.17MIThttps://tailwindcss.com
typescript5.8.3Apache-2.0https://www.typescriptlang.org
vite5.4.19MIThttps://vite.dev
vitest3.2.4MIThttps://vitest.dev
@playwright/test1.59.1Apache-2.0https://playwright.dev
info

This list was last updated on 2026-04-13. For the most current dependency versions, refer to the package.json files in the project repository.


For the full texts of the ISC, MIT, and Apache 2.0 licenses, see Full License Texts.