⚡ Privacy-First Engineering

About MediaConvertKit

We are building the web's fastest, most private file conversion platform — powered entirely by modern browser technologies.

Our Mission

For decades, online file conversion was dominated by cloud services that forced users to upload private family photos, confidential business documents, and sensitive media to unknown remote servers. Users suffered through slow upload queues, file size limits, paywalls, and constant privacy risks.

MediaConvertKit was founded to end this paradigm. By leveraging the breakthrough performance of WebAssembly, the HTML5 Canvas API, and Web Audio, we brought industrial-grade conversion engines directly to the browser. Your device performs the computation locally, eliminating servers, uploads, and data exposure entirely.

Our Core Principles

🔒 100% Client-Side Privacy

Files are processed strictly in your local device memory. No backend server ever receives or stores your files.

⚡ Zero Bandwidth Waste

No uploading a 1GB file over cellular or slow Wi-Fi. Conversion starts instantly in RAM at hardware speed.

🆓 Truly Free & Unlimited

No subscriptions, credit systems, daily conversion limits, or watermark trickery. Free for everyone, forever.

🌐 Universal Accessibility

Engineered to work smoothly across Chrome, Safari, Firefox, Edge, iPhone, Android, Mac, and Windows.

The Technology Stack

FFmpeg.wasmThe gold standard of video and audio transcoding, compiled to WebAssembly (WASM) to run directly inside client browser tabs.

Web Audio APINative browser digital audio processing for instantaneous, lossless PCM waveform extraction.

HTML5 Canvas APIHardware-accelerated pixel pipeline for rasterizing, resizing, and converting images (WebP, PNG, JPG, GIF).

PDF.js & pdf-libMozilla’s browser-based PDF rendering engine coupled with client-side PDF document assembly.

Next.js & TypeScriptModern React framework providing static pre-rendering, instant page transitions, and sub-100ms Core Web Vitals.

Security Verification

We encourage developers, journalists, and security researchers to inspect our network traffic. Read our comprehensive Security Architecture & Zero-Upload Verification Guide to verify our claims using browser DevTools.

Have Questions or Suggestions?

We respond to all user inquiries within 24 hours.

Contact Engineering Team →