Downloader questions and answers
These answers describe the current public implementation. Browser behavior, Kommodo delivery settings, signed URLs, and media formats can change, so use the technical details panel and linked guides when a general answer does not match a specific recording.
Which Kommodo links are supported?
The downloader accepts secure public URLs on kommodo.ai with a /recordings/ path and a recording identifier. Workspace dashboard URLs, unrelated hosts, shortened redirects, and links that require another person's account are not supported.
Does the downloader upload my video to its server?
The application server resolves the public share page to an approved HLS playlist. Compatible playlists and video segments then travel directly from Kommodo delivery hosts to your browser. The application server is not a video-segment proxy.
Why is a resolver needed at all?
The public share page does not provide the cross-origin response headers needed for browser JavaScript to read its HTML. A restricted Cloudflare Worker validates the Kommodo URL, reads that page, extracts an approved playlist URL, and returns limited metadata.
Will the MP4 have the same quality?
The tool selects the highest listed bandwidth in a simple master playlist and transmuxes compatible tracks without re-encoding. It cannot improve the source, and highest bandwidth is not a guarantee of highest perceptual quality.
Does it work on phones and tablets?
The interface is responsive, but long or high-resolution recordings may exceed mobile browser memory. A current desktop browser is the safer choice for large files.
Why did a private or expired recording fail?
The downloader does not accept login credentials or bypass access controls. Ask the owner for an authorized public share link or official export. Signed playlists can also expire, so retry with a fresh link.
What does browser-side processing mean?
Your browser fetches compatible video segments, stores them temporarily in memory, transmuxes the media into MP4, and creates a local Blob URL for the save action. Network providers and Kommodo still receive ordinary request information.
Can I close the page and return to the finished file?
No. The generated Blob URL is temporary and belongs to the current page. Save the MP4 before closing or refreshing. The current implementation does not persist partial downloads.
Is encrypted HLS supported?
No. The parser rejects playlists that declare encryption keys. The tool is not designed to retrieve keys, bypass authentication, or defeat digital access controls.
Why can conversion fail after every segment downloads?
The media may use an unsupported codec, fragmented MP4 segments, separate audio groups, timestamp discontinuities, or more memory than the browser can provide. Transmuxing is not general transcoding.
Is the project affiliated with Kommodo?
No. Kommodo Downloader is an independent open-source Nafran project. Kommodo and related names belong to their respective owners, and references identify compatibility only.
May I download any recording with a public URL?
No. Technical access does not create copyright or privacy permission. Download only recordings you own or are authorized to save, and obtain any permission needed before editing, publishing, or redistributing them.
Is the downloader free and open source?
Yes. The public website does not charge a usage fee, and the source is published under the MIT license. Availability and behavior are provided without a guarantee.
How should I report a problem?
Use the Contact page or GitHub issues. Include the error stage, browser version, approximate duration, and steps to reproduce. Do not publish a private recording URL, personal data, or confidential media.
Where to go next
For a first download, read How to use the Kommodo Video Downloader. For engineering detail, read How the technology works and HLS to MP4 explained. If a job fails, use the troubleshooting guide.
Questions about data handling, authorized use, or copyright belong in the Privacy Policy, Terms, and DMCA and Copyright Policy.