What is Cobalt?
Cobalt is a free web-based media downloader: paste a URL, choose a format, get a file. It supports a broad range of video and audio platforms, has no account system, and displays no advertising.
It is not adult-specific. It is in this directory because the download category is, and because it is the cleanest tool in it.
Why does the category need a clean option?
Because the alternatives are among the worst-behaved sites on the web. The typical free downloader runs pop-under advertising, fake download buttons, browser notification prompts and redirect chains, and several bundle installers. The category has been a malware vector for two decades.
Against that, a tool that loads a small page, does the job and shows nothing else is genuinely valuable, and the measurements support the claim rather than just repeating the marketing.
What did we measure?
A median 111ms response on a 27KB document — the lightest page in this block by a factor of nearly two, and among the fastest. Our passes returned 203ms, 98ms and 111ms, in close agreement.
Our scan detected no advertising network, which for a free tool in this category is the finding that matters and is rare enough to be worth stating plainly.
It found none of the four compliance documents, and the document declares no lang attribute. On a minimal single-purpose tool, absent 2257 and DMCA are simply inapplicable — it hosts nothing. Absent terms and privacy are more defensible here than on a retailer, since there is no account and nothing to collect, but they are still absent, and the missing lang attribute is a small accessibility gap that costs nothing to fix.
What should you understand before using it?
That the tool being clean does not make every use of it lawful. Downloading content you have not paid for, from a platform whose terms forbid it, is a copyright and contract question regardless of how well-behaved the software is.
There are legitimate uses — your own uploads, licensed material, content explicitly offered for download — and there are uses that are neither. The tool does not distinguish, and this review is not going to pretend the distinction is unimportant.
For paid adult content specifically, the studios reviewed in this directory sell downloads directly, and Adult Empire and HotMovies both give you a file you own.
What are the drawbacks?
Platform support breaks when sites change their delivery, which is constant — any downloader is in a permanent arms race and periods of breakage are normal. There is no support channel to speak of.
Should you use it?
If you need this kind of tool, it is by a wide margin the least hostile one available and the measurements back that up. Just be clear-eyed that the tool's cleanliness says nothing about the legality of a given download.
