Fetch PSSH data  

The URL of the initialization segment to fetch

This tool fetches an initialization segment from a web server (an MP4 fragment), extracts any DRM initialization data (PSSH boxes) and decodes and prints them. Please note that the initialization segment is fetched using your own web browser. Due to browser restrictions on “mixed content”, this tool will probably only work with HTTPS URLs and fail with HTTP URLs.

Some sample URLs for testing: init1.mp4, init2.mp4.

Privacy: this tool is implemented in WebAssembly and runs locally in your web browser. Once loaded, it will run fully offline.