Privacy Policy

How Compresso protects your privacy and handles data

Privacy Policy

Privacy-First by Design

At Compresso, privacy isn't just a feature—it's our foundation. We've built our entire platform around the principle that your files and data should remain private and under your control.

Last updated: January 1, 2024

đź“‹ What This Privacy Policy Covers

This Privacy Policy explains how Compresso (“we,” “our,” or “us”) handles information when you use our website and file processing tools at compresso.app (the “Service”).

🎯 The Short Version

Key Promise

We don't collect, store, or process your files. All file conversions and compression happen entirely in your browser using WebAssembly technology. Your files never leave your device.

❌ Information We Don’t Collect

Your Files

  • File Content: Never received, stored, or processed
  • File Names: Not logged or stored
  • File Metadata: No access or collection
  • Conversion History: Not tracked

Personal Information

  • No Account Required: Use all tools without registration
  • No Email Collection: Email addresses not required
  • No Personal Data: Names, addresses not collected

âś… Information We Do Collect

Basic Analytics

We use privacy-focused analytics to understand how our service is used:

  • Page Views: Which pages are visited (no individual tracking)
  • General Usage: Tool usage frequency (aggregated only)
  • Error Rates: To improve service reliability
  • Country-Level Location: General geographic data for localization

Analytics Provider: We use Plausible Analytics, which is privacy-focused and GDPR compliant.

Technical Information

Basic technical data to ensure optimal service:

  • Browser Type: To ensure compatibility
  • Device Type: To optimize user experience
  • Connection Issues: To identify and fix technical problems

Purpose: This data helps us maintain compatibility across different browsers and devices while fixing technical issues quickly.

đź”§ How Our Technology Works

Client-Side Processing

All file processing happens in your browser using WebAssembly:

âś“ Files are processed locally on your device
âś“ No data transmission to our servers during processing
âś“ Converted files generated directly in your browser
âś“ You download results from your browser's memory

What Our Servers Do

Our servers only handle infrastructure - never your files:

i Serve the website and user interface
i Provide WebAssembly libraries for download
i Collect basic analytics data
i Handle error reporting (without file data)

🍪 Cookies and Local Storage

Essential Cookies

We use minimal cookies for basic functionality:

  • Language Preferences: Remember your selected language
  • Basic Functionality: Enable core website features
  • Error Reporting: Help us fix technical issues quickly

No Tracking Cookies

We completely avoid tracking technologies:

  • Advertising Cookies: No ads, no tracking pixels
  • Cross-Site Tracking: No fingerprinting or profiling
  • Social Media Tracking: No embedded social widgets

Privacy First: Your browsing behavior is never monitored, recorded, or sold.

🗂️ Data Retention

Your Files

Never

We don't receive your files, so there's nothing to retain or delete

Analytics

24 Months

Basic usage statistics for service improvement

Server Logs

30 Days

Technical logs without personal data for security

Automatic Deletion: All retained data is automatically deleted after the specified periods with no manual intervention required.

Third-Party Services

WebAssembly Libraries

We use open-source libraries for file processing:

  • libheif for HEIC conversion
  • Squoosh codecs for image optimization
  • ffmpeg.wasm for video processing

These run entirely in your browser and don’t send data elsewhere.

Content Delivery

We use Cloudflare for:

  • Website hosting and delivery
  • DDoS protection
  • Performance optimization

Cloudflare may collect basic connection information as described in their Privacy Policy.

Your Rights

Control Over Your Data

  • No Data Collection: Since we don’t collect your files or personal data, there’s nothing to delete or modify
  • Analytics Opt-Out: You can disable analytics tracking in your browser
  • Cookie Control: You can disable cookies, though some functionality may be affected

Transparency

  • Our processing methods are open and auditable
  • You can monitor network activity to verify no file uploads occur
  • We’re committed to transparency about our practices

Children’s Privacy

We don’t knowingly collect information from children under 13. Since our service doesn’t collect personal information or require accounts, it’s generally safe for all ages under parental supervision.

Changes to Privacy Policy

We may update this Privacy Policy occasionally to:

  • Reflect changes in our practices
  • Address new legal requirements
  • Improve clarity

We’ll post any changes on this page with an updated “last modified” date.

International Users

Our service is provided from the United States but designed to comply with international privacy standards including GDPR. Since we don’t collect personal data or files, compliance is inherently built into our architecture.

Security

Technical Measures

  • HTTPS encryption for all connections
  • Content Security Policy (CSP) headers
  • Cross-Origin Embedder Policy (COEP) for enhanced security
  • Regular security updates for all dependencies

No Data Breaches Possible

Since we don’t collect or store your files or personal information, traditional data breaches aren’t applicable to our core service.

Contact Us

If you have questions about this Privacy Policy or our privacy practices:

For EU users, our legal basis for processing basic analytics data is legitimate interest in improving our service. You can opt out of analytics tracking at any time.


This policy is effective as of the last updated date above. By using Compresso, you acknowledge that you’ve read and understood this Privacy Policy.

Questions about Privacy?

We're committed to transparency. If you have any questions about how we protect your privacy, we're here to help.

Last updated: January 1, 2024

We may update this Privacy Policy from time to time to reflect changes in our practices or legal requirements. Any changes will be posted on this page with an updated date.