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Built for security. Made for everyone.
Client-side Rendering

Guard Your Files with Effortless Previews

Protect your files with drag-and-drop or your users' files via API — secure, simple, and developer-friendly.

PDF
Excel
Images
Video
Audio
Archive
Code
3D
Upload FileAPI Docs

Generates secure preview links with configurable expiration (1 day to 7 days). Configure TTL, watermark, no-download, one-time access, password protection, view tracking and more. Protect your app and customer attachment files.

Guard Your Files with Effortless Previews

Select any file, configure access policies, and instantly get a preview link with customizable validity period.

Click or drag file here

Any file type supported

Duration
1 hour

Why Choose PreviewFile.dev?

Built for developers who need secure, scalable file preview capabilities with flexible access control

110+ File Formats

Native browser preview for PDFs, Office documents, spreadsheets, images, videos, code files, archives, diagrams, and more—all rendered client-side for maximum security and performance.

See full list of supported file formats
  • PDF with PDF.js viewer
  • Excel/CSV with x-spreadsheet engine
  • Images (including TIFF), videos, audio

Comprehensive Security

Protect your files with password protection, dynamic watermarks, download prevention, one-time links, and configurable expiration—keeping sensitive files secure at every step.

  • Password protection & one-time links
  • CloudFront CDN + Signed URLs
  • Dynamic watermarks & download prevention

API-first for Developers

Integrate secure file preview with simple REST or tRPC APIs. Upload files programmatically and get instant preview URLs with full TypeScript support.

  • Upload returns instant preview URL
  • OpenAPI documentation with code examples
  • Full TypeScript support & type-safety

Built for Scale

Elastic architecture with CDN acceleration, serving from startups to enterprises with high-volume preview needs. Client-side rendering ensures zero server load.

  • Client-side rendering (zero server load)
  • CloudFront CDN with layered caching
  • Multi-region deployment / private hosting available

See It In Action

Real-world examples of how PreviewFile.dev protects and shares your files securely

Watermark Protection

Add dynamic custom watermarks to protect your content from unauthorized redistribution

Watermark Demo
CONFIDENTIAL
View Demo

Download Prevention

Allow secure viewing while preventing file downloads for sensitive documents

PDF
Download

This file type cannot be previewed directly in the browser.

Try It

Smart Embedding

Embed secure file previews in your app with a simple iframe—no plugins required

DOC
report.docx
<iframe src="/p/doc" />
Supports 110+ file formats: PDF, Office documents, Images, Videos, and more
See Code

Embed Any File, Anywhere

Embed secure file previews in your application with a simple iframe—works with any file format

Live Preview

Preview

Simple, Transparent Pricing

Choose the right plan based on your preview count needs. All plans include unlimited storage and secure file preview capabilities.

Save save ~17% with yearly

Free

$0/month

Perfect for individuals just getting started with file previews

  • 1,000 Preview Count / month
  • Unlimited Storage
  • 1 day link expiration
  • OpenAPI Access
  • Basic Support
Get Started
Most Popular

Plus

$5/month

Perfect for professionals and growing teams

  • 10,000 Preview Count / month
  • Unlimited Storage
  • 7 days link expiration
  • OpenAPI Access
  • Priority Support

Enterprise

Custom PricingCustom solutions for large-scale organizations
  • Everything in Plus
  • Unlimited Preview Count
  • Unlimited link expiration
  • Dedicated Account Manager
  • Custom SLA
  • On-premise Deployment Option
  • SSO/SAML Integration
  • Custom Contracts
Contact Sales

Loved by Customers Worldwide

See what our users are saying about us

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.

D
Doris
@Hihi_Doris

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! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

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.