YouTube has long supported a public ?sub_confirmation=1 query parameter on any channel URL: when a signed-in visitor opens a link with it, YouTube shows an immediate one-click subscribe prompt instead of requiring them to find and click the button on the channel page themselves. This tool just validates whatever channel reference you paste — a full URL, an @handle, or a bare channel name — and rebuilds it into that link. Everything happens in your browser; nothing is sent to a server, and no YouTube API key or login is involved.
How this works
Frequently asked questions
How is this different from just linking to my channel?
A plain channel link just opens the channel page — a visitor still has to find and click the Subscribe button themselves. Adding ?sub_confirmation=1 makes YouTube pop up a one-click "Subscribe" confirmation the moment the page loads, which is why creators put this link (rather than a bare channel URL) in video descriptions, end screens, and email signatures.
Does this need a YouTube API key or my channel's login?
No. The link is built entirely from the channel path you paste — a public URL parameter YouTube has supported for years — so there's nothing to authenticate and nothing sent to any server. This page never asks for your Google account.
Will it work for any channel, including ones that aren't mine?
It generates a valid confirmation link for any public channel, but the subscribe prompt itself is controlled entirely by YouTube and the visitor's own account state — it works only if that channel currently allows subscriptions and the visitor is signed in when they click it. There's no way for a link to force a subscription or bypass the visitor's own confirmation.
What formats of channel input does this accept?
A full channel URL (youtube.com/@handle, /channel/UC..., /c/name, or /user/name), an @handle on its own, or just a channel name typed without the @. Whatever you paste is parsed and rebuilt into a clean youtube.com link — nothing you type is passed through unvalidated.
Can I use this link in ads or paid promotion?
Yes — it's a standard public YouTube URL parameter, not a workaround, and creators commonly use it in paid end-screen cards, newsletter CTAs, and link-in-bio pages. Just be aware it still requires the visitor to confirm the subscription themselves; nothing about the link automates that step.