Niconico Video URL Resolver
Check public Niconico video URLs for availability and formats before download.
Supported services
How it works: paste a public Niconico URL, check the platform, URL pattern, availability, and returned formats, then choose an available format.
The preview and format selector are rendered from the actual /api/resolve response for the pasted URL.
Supported URL patterns
- nicovideo.jp/watch URLs
- nico.ms short links
- live.nicovideo.jp URLs when supported
Short links
- nico.ms links are accepted and resolved through this Niconico page.
Format availability
- MP4 or other video formats appear only when Niconico exposes accessible formats.
- Some videos require login or source-side access that this server cannot use.
Common failure reasons
- Login-required video
- Deleted, private, or restricted video
- Live-only content
- No public downloadable format exposed
Related resolvers
Supported formats and responsible use
Formats
- Public Niconico videos
- Available video formats exposed by the source
- nicovideo.jp and nico.ms URLs
Notes
- Login-required, private, deleted, live-only, or restricted videos may fail.
- Some Niconico content may require access that is not available from this server.
FAQ
Do nico.ms short links work?
Yes. Public nico.ms links are accepted on the Niconico page.
Why does a Niconico URL fail?
The video may require login, be deleted, be restricted, or not expose a downloadable public format.
What does this Niconico URL resolver check?
It checks the platform, URL pattern, availability, and available video formats returned by /api/resolve.