Knowledge center

Save, understand, and troubleshoot your recordings.

Choose a practical guide, explore the technology behind browser-side MP4 creation, or solve a download problem without guesswork.

Choose the guide that matches your goal

Start with the step-by-step instructions when you simply need an MP4. Explore the architecture, HLS, formats, and browser-processing guides when you want the technical details. If something fails, the troubleshooting guide turns each visible symptom into a practical next action.

The articles describe the behavior of this open-source downloader as it exists today. They do not pretend that every recording is identical. A public share link, browser memory, the recording host, CORS permissions, and the media format can all affect the result. Each guide makes those boundaries explicit so that you can make an informed choice.

Learn at your own pace

The library has three layers. The first covers the user journey: finding a public link, pasting it into the downloader, reading progress, and saving the MP4. The second explains the technical path: resolving the share page, reading an HLS playlist, fetching media segments in the browser, and transmuxing compatible streams into an MP4 container. The third covers trust: privacy, responsible use, terms, copyright requests, project ownership, and contact information.

Every page links to related pages rather than repeating the same generic explanation. This lets a reader move from a quick answer to deeper technical detail while keeping each article focused on one intent.

Use the information responsibly

Downloading technology does not create permission to copy a recording. Use the downloader only for content you created, content shared with you for download, or content you are otherwise authorized to save. Public accessibility and copyright permission are different questions. Review the Terms of Use, Disclaimer, and DMCA and Copyright Policy before relying on the service.

For project updates or corrections, visit the Contact page or inspect the open-source repository.