AI 产品解读NicoNico video downloader and NicoNico service enhancement tool
Enables users to save NicoNico (nicovideo.jp) videos as MP4 files locally, and enhances the NicoNico Dictionary browsing experience with pagination and bookmark features
1. User installs extension and configures initial settings (filename format, HLS mode) via options page. 2. User navigates to a NicoNico video page (sm#####). 3. Extension automatically injects a download button below the video title. 4. User clicks the download button; extension extracts the HLS master URL from the system message, downloads audio and video m3u8 streams, fetches TS segments, and uses ffmpeg.wasm to merge and convert them to MP4. 5. Browser saves the file via standard download dialog or auto-save. For NicoNico Dictionary: extension adds pagination controls and bookmark navigation on thread pages.
Adds a download button directly below the video title on NicoNico video pagesDownloads HLS streams (audio + video separately) and merges them into MP4 using ffmpeg.wasmSupports customizable default filename format for saved videosAdds 'next/previous 30 posts' pagination buttons on NicoNico Dictionary (dic.nicovideo.jp) thread pagesAdds a 'jump to last bookmarked post' feature on NicoNico Dictionary pagesMulti-language support (Japanese and English)
- 目标用户
- NicoNico (nicovideo.jp) users who want to download videos for offline viewing / NicoNico Dictionary (dic.nicovideo.jp) users who want improved browsing experience
- NicoNico premium membership is a destination-service feature; could not verify from source alone whether the extension works identically for free and premium NicoNico accounts
- Cannot confirm whether all NicoNico video types require login from extension source alone (some may be freely accessible)
付费分析未识别到付费功能
No evidence of any paid features, subscription, billing, or upgrade UI in the extension source code. No matches for keywords such as 'premium', 'subscription', 'payment', 'license', or 'account'. The extension is fully functional with only a 'storage' permission and no external service calls for billing. The keyword hits for 'pro' are all false positives in ffmpeg-core2.js (process, property, protocol, etc.). NicoNico itself has a premium membership, but the extension does not gate any of its own features behind it.
- 置信度
- 95
- 支付平台
- --
- 来源
- AI / 高
- 需要登录
- 是
- 登录理由
- The extension runs as a content script on nicovideo.jp video pages and fetches HLS video streams using 'credentials: include' (func/ndl.js:626), relying on the user's existing NicoNico login session. NicoNico requires a logged-in account to access and play most videos, meaning the core download workflow depends on the user being authenticated on the destination service. The extension itself does not implement its own login UI or account system.