The short answer: yes for personal use, and the long answer has an interesting legal history worth understanding.
Downloading a publicly posted LinkedIn video for personal, non-commercial purposes — research, archival, offline viewing, sharing a single clip with a colleague by email or Slack — is broadly understood as lawful in the United States and most Western jurisdictions. It falls under the same doctrine of fair use that permits a marketing analyst to save a competitor's public press release for reference, or a journalist to archive a public tweet. The content was published to the open web; you are viewing it; you are making a copy for your own notes.
The more interesting question — and the one that has been litigated — is whether tools that interact with public LinkedIn pages violate LinkedIn's Terms of Service, and whether that violation can be escalated into a federal crime under the Computer Fraud and Abuse Act (CFAA). In the landmark hiQ Labs v. LinkedIn case, the United States Court of Appeals for the Ninth Circuit ruled in 2019 and reaffirmed in 2022 that accessing publicly available LinkedIn profile data does not violate the CFAA, because you cannot be "without authorisation" to access data that has been made publicly available to anyone with a browser. The Supreme Court denied certiorari, leaving the Ninth Circuit ruling intact as the controlling precedent in a large part of the United States.
That ruling matters because it is the defining legal framework for any tool that interacts with public LinkedIn content, including MediaFetcher. The Ninth Circuit drew a meaningful line: publiccontent is accessible, and tools that help users interact with public content are legitimate, even when LinkedIn's Terms of Service prohibit such tools. Private content behind a login, connection-gated posts, and members-only groups are a different category — those are not public, they require authentication to access, and they are not supported by MediaFetcher at all.
There is also a meaningful distinction between a single individual saving a video for their own professional use and a company building a large-scale data-harvesting operation that scrapes millions of profiles to feed a machine-learning pipeline. hiQ Labs itself operated in the second category and ultimately lost on the contract claims even while winning on the CFAA question. MediaFetcher is firmly in the first category: a single-post downloader, one URL at a time, used by professionals to save videos they would otherwise have watched anyway. We do not offer bulk operations, we do not offer an API, and we do not offer any form of mass-scraping tooling. That design is deliberate.
None of this is legal advice. LinkedIn is owned by Microsoft and its Professional Community Policies set out how the platform expects its content to be used. Commercial redistribution of someone else's LinkedIn video without permission is a copyright question and is almost certainly not permitted. If your use case is anything more ambitious than personal research or internal team sharing, talk to an actual lawyer in your jurisdiction before you rely on any of this.