Fillora PDF

Fillora PDF is building privacy-first, browser-native document tools powered by modern web technologies. Our mission is to make working with PDFs and documents faster, more secure, and more accessible by reducing reliance on server-side processing wherever practical. We share engineering insights, architecture decisions, performance optimization techniques, and lessons learned while building real-world products.

JavaScript • TypeScript • React • Next.js • Node.js • WebAssembly • PDF-Lib • PDF.js • Web Workers • FastAPI • Python • Cloudflare • Docker • Tailwind CSS • AI APIs • REST APIs • GitHub Actions • Vercel