PreviewFile.dev
Guard Your Files with Effortless Previews, Password Protection & Expiration
Secure file preview API with 110+ format support
Preview
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Description
PreviewFile.dev is a secure file preview API that supports 110+ file formats with advanced protection features. Upload files and generate secure preview links with password protection, custom watermarks, configurable expiration (1 hour to 7 days), download prevention, and one-time access links. Perfect for legal teams sharing confidential documents, SaaS applications needing protected file previews, contractors requiring temporary access, and any workflow demanding secure document review. Client-side rendering ensures maximum security, while OpenAPI documentation makes integration effortless.
What You Get
110+ File Formats
Preview archives, code, documents, images, videos, and more without downloading.
Password Protection
Secure your previews with custom passwords for confidential document sharing.
Custom Watermarks
Add text or image watermarks to protect your intellectual property.
Expiration Control
Set preview links to expire from 1 hour to 7 days for temporary access.
Download Prevention
Allow viewing without downloading to maintain control over your files.
One-Time Links
Generate single-use preview links that expire after first access.
Client-Side Rendering
Maximum security with client-side file processing and rendering.
Developer-Friendly API
OpenAPI documentation and simple REST API for easy integration.
What's New
- Expanded archive support, Discord community launch, and internationalization fixes.
- Enhanced PSD & 3D viewing, new About page, and expanded file support.
- EPUB reader improvements, password reset, coming soon UI, and enhanced user experience
- Enhanced document conversion, CJK support, file upload, and improved user experience
- Infrastructure improvements, stability enhancements, and monorepo integration for better development velocity
- Password protection, AI agent integration via MCP, enhanced language support, and improved file management
- Major milestone release introducing comprehensive file preview capabilities, advanced security features, and modern architecture
Ratings & Reviews
GA weekly report → PDF → password-protected preview link. Still not sure if there’s a real need here.🤔
PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.
PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.
One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀
Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.
Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.
Stop rebuilding file viewers. PreviewFile is the "Stripe for File Previews." It’s fast, secure, and incredibly easy to integrate.💗
Just watched the intro video — PreviewFile looks amazing! 🔒 Effortless, secure file previews with support for 110+ formats is exactly what’s needed. Excited to try it out.
Just found previewfile.dev — it previews almost any file in seconds, and even supports encrypted or time-limited sharing. Crazy useful!
Exactly what I was looking for! Safe, client-side archive preview from PreviewFile.dev is such a smart solution. Great work!
Information
Developer
PreviewFile Team
Version
v1.0.7
Released
2026-02-09
Category
Productivity
Website
previewfile.devSupport
[email protected]