Copy the Niconico link
Open the page on Niconico and copy the address from your browser bar, or use the share menu and pick Copy link. Either form works.
Niconico Video Downloader
Save Niconico videos as MP4. Paste a nicovideo.jp watch link or an sm id — both resolve to the same video.
Updated for Niconico's session handshake, the step that makes most generic downloaders fail on this site.
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How to download from Niconico
Paste it above
Drop the link into the box and press download. Nothing to configure — the right extractor for Niconico is picked for you.
Save the file
The file is prepared on our side and handed to you as a normal download. It lands in your usual downloads folder, on desktop or phone.
Why AppsCyborg for Niconico
Built around how Niconico actually serves media
Niconico does not hand out a plain media URL. The player first opens a session with the delivery API and keeps it alive while the stream is read, and a downloader that skips that handshake gets a 403 no matter how correct its URL is. We perform the handshake, hold the session for the duration of the fetch, and close it cleanly.
Nothing to install
No browser extension, no desktop app, no APK. Niconico links are handled server-side, so the same page works on a work laptop you cannot install software on and on a phone.
Kept at source quality
We hand you the stream Niconico published rather than re-encoding it down to a smaller file. What arrives is what was uploaded, not a second-generation copy.
No ads and no decoy buttons
One button that does what it says. No overlay ads, no fake Download that opens a tab, no push-notification prompt. AppsCyborg is paid, so the page has nothing to sell you on the way past.
Downloading from Niconico — questions
Is downloading from Niconico allowed?
That depends on the material and on where you are, and it is your call to make. Downloading your own uploads, or material published under a licence that permits it, is normally fine. Redistributing someone else's copyrighted work is not. AppsCyborg is a tool; it does not grant you rights you did not already have, and you stay responsible for what you download.
What file do I get from a Niconico link?
An MP4 at the rendition Niconico serves for that video — commonly 720p or 1080p on recent uploads, considerably lower on the site's older archive, which was never re-encoded. Audio is AAC in the same container.
What happens when Niconico changes something?
Niconico revises its session API on its own schedule and rarely announces it. When the handshake shape changes the extractor is updated against the live site. Videos limited to premium accounts, and channel videos behind a paywall, fail with that reason rather than returning a partial file.
Do I need to install anything to download from Niconico?
No. There is no extension, no app and no command line. You paste a Niconico link into the box on this page and get a file back. It works the same in Chrome, Firefox, Safari and Edge, on desktop and mobile.
What does it cost?
A day pass is €1 and covers 24 hours. A year is €6, and lifetime access is a single €30 payment. There is no free tier and no trial — the paid account is what keeps the site free of ads and the queue short.
Other source guides
Same tool, a different source. Each page covers what is specific to that site.