WasmConvert

About WasmConvert

WasmConvert is a free, privacy-first file conversion platform that processes everything locally in your browser. No uploads, no servers, no compromises.

Our Mission

Traditional online converters require you to upload your sensitive files to remote servers, creating privacy risks and wasting bandwidth. We built WasmConvert to prove there's a better way. By leveraging WebAssembly (Wasm) technology, we bring professional-grade conversion tools directly to your browser — eliminating the need for file uploads entirely.

Our mission is to make powerful file conversion accessible to everyone, everywhere, without compromising privacy or requiring software installation.

How It Works

WasmConvert uses WebAssembly to run industry-standard conversion libraries (like FFmpeg for video/audio and specialized image processing tools) directly inside your web browser. Here's what makes this special:

  • 100% Local Processing — Your files are read from your device, processed in your browser's memory, and saved back to your device. Nothing is ever uploaded.
  • Near-Native Performance — WebAssembly runs at 80-90% of native application speed, making browser-based conversion practical even for large files.
  • Zero Installation — No software to download or install. Works instantly in Chrome, Firefox, Safari, Edge, and all modern browsers.
  • Cross-Platform — Works identically on Windows, macOS, Linux, ChromeOS, and mobile devices.

What We Support

WasmConvert handles a comprehensive range of file formats across three categories:

🖼️ Images

PNG, JPG, WebP, AVIF, GIF, HEIC, SVG, ICO, PDF — convert between any combination with full quality control.

🎬 Video

MP4, MOV, MKV, AVI, WebM, FLV — transcode videos and create GIF animations from video clips.

🎵 Audio

MP3, WAV, FLAC, M4A, AAC, OGG, WMA — convert audio formats and extract audio from video files.

Why Choose WasmConvert?

  • Complete Privacy — Your files never leave your device. We physically cannot see, access, or store your data.
  • No File Size Limits — Since processing happens on your hardware, there are no artificial file size restrictions.
  • No Account Required — No sign-up, no login, no email collection. Just open the page and start converting.
  • Completely Free — All conversion features are free to use, with no hidden paywalls or premium tiers.
  • Works Offline — After the first visit, WasmConvert works even without an internet connection.
  • Batch Processing — Convert multiple files simultaneously for maximum productivity.

Our Philosophy

We believe that file conversion is a basic utility that should be free, private, and accessible. In an era where most online tools monetize user data, we take the opposite approach: your data stays yours.

WasmConvert is built with modern web technologies and follows best practices in performance, accessibility, and security. We continuously expand our format support and improve conversion quality based on user feedback.

Contact

Have questions, suggestions, or feedback? We'd love to hear from you at support@wasmconvert.com.