PreviewFile.dev Overview
Learn about PreviewFile.dev's positioning, core values, and use cases.
PreviewFile.dev is a secure file preview API designed to protect your users' files while providing instant, seamless preview capabilities for regular users and SaaS teams.
Product Positioning
- One sentence: File Preview API built to protect your users' files.
- Subheadline: Secure, private, and developer-friendly file rendering in one line of code.
- Target audience:
- Regular users: Temporary uploads, quick sharing with built-in security policies.
- Developers / SaaS teams: One API to provide stable, secure file preview capabilities for your product.
- SMEs: Control file access permissions with watermarks, download prevention, burn-after-reading, and other security policies.
Core Values
Security First
Dynamic watermarks, expiration controls, download protection, and one-time access keep sensitive files secure.
Universal Format Coverage
PDF, Office, images, audio/video, code files, and more - gradually expanding to CAD/OFD and other long-tail formats.
API-first
REST / tRPC interface, one line of code integration, built-in authentication and metrics.
Privacy by Design
Client-side rendering.
Why PreviewFile.dev Now?
- Remote work is the norm — Cross-device file needs have surged, users need to quickly preview unfamiliar formats on any device.
- SaaS proliferation — Every application needs "attachment preview," but building in-house is costly, complex, and risky without proper security.
- Security compliance demands — Enterprises need audit trails, access controls, and data protection for file sharing.
- Long-tail format challenges — LibreOffice, FFmpeg, CAD rendering chains are heavy; PreviewFile.dev provides hosting + caching with security built-in.
PreviewFile.dev aims to become the "Stripe for secure file preview," connecting complex transcoding, caching, and security policies through a minimalist API that protects your users' data.
Next Steps
- Read the API Overview to learn how to create secure preview links.
- Explore Security Policies to understand watermarks, hotlink protection, and burn-after-reading implementations.
- Check Pricing & Plans to evaluate the best business solution for you.