diff --git a/bin/build-player.js b/bin/build-player.js
index 194ef71c..281e926a 100755
--- a/bin/build-player.js
+++ b/bin/build-player.js
@@ -8,6 +8,7 @@ var order = [
     'base.coffee',
 
     'dailymotion.coffee',
+    'niconico.coffee',
     'peertube.coffee',
     'soundcloud.coffee',
     'twitch.coffee',
diff --git a/player/niconico.coffee b/player/niconico.coffee
new file mode 100644
index 00000000..1236d533
--- /dev/null
+++ b/player/niconico.coffee
@@ -0,0 +1,66 @@
+window.NicoPlayer = class NicoPlayer extends Player
+    constructor: (data) ->
+        if not (this instanceof NicoPlayer)
+            return new NicoPlayer(data)
+
+        @load(data)
+
+    load: (data) ->
+        @setMediaProperties(data)
+
+        waitUntilDefined(window, 'NicovideoEmbed', =>
+            @nico = new NicovideoEmbed({ playerId: 'ytapiplayer', videoId: data.id })
+            removeOld($(@nico.iframe))
+
+            @nico.on('ended', =>
+                if CLIENT.leader
+                    socket.emit('playNext')
+            )
+
+            @nico.on('pause', =>
+                @paused = true
+                if CLIENT.leader
+                    sendVideoUpdate()
+            )
+
+            @nico.on('play', =>
+                @paused = false
+                if CLIENT.leader
+                    sendVideoUpdate()
+            )
+
+            @nico.on('ready', =>
+                @play()
+                @setVolume(VOLUME)
+            )
+        )
+
+    play: ->
+        @paused = false
+        if @nico
+            @nico.play()
+
+    pause: ->
+        @paused = true
+        if @nico
+            @nico.pause()
+
+    seekTo: (time) ->
+        if @nico
+            @nico.seek(time * 1000)
+
+    setVolume: (volume) ->
+        if @nico
+            @nico.volumeChange(volume)
+
+    getTime: (cb) ->
+        if @nico
+            cb(parseFloat(@nico.state.currentTime / 1000))
+        else
+            cb(0)
+
+    getVolume: (cb) ->
+        if @nico
+            cb(parseFloat(@nico.state.volume))
+        else
+            cb(VOLUME)
diff --git a/player/update.coffee b/player/update.coffee
index 5b4a3dc2..a25b6ad7 100644
--- a/player/update.coffee
+++ b/player/update.coffee
@@ -18,6 +18,7 @@ TYPE_MAP =
     bc: IframeChild
     bn: IframeChild
     od: OdyseePlayer
+    nv: NicoPlayer
 
 window.loadMediaPlayer = (data) ->
     try
@@ -109,7 +110,8 @@ window.removeOld = (replace) ->
     $('#soundcloud-volume-holder').remove()
     replace ?= $('<div/>').addClass('embed-responsive-item')
     old = $('#ytapiplayer')
+    old.attr('id', 'ytapiplayer-old')
+    replace.attr('id', 'ytapiplayer')
     replace.insertBefore(old)
     old.remove()
-    replace.attr('id', 'ytapiplayer')
     return replace
diff --git a/src/get-info.js b/src/get-info.js
index 2739a447..ad741281 100644
--- a/src/get-info.js
+++ b/src/get-info.js
@@ -10,6 +10,7 @@ const Odysee = require("@cytube/mediaquery/lib/provider/odysee");
 const PeerTube = require("@cytube/mediaquery/lib/provider/peertube");
 const BitChute = require("@cytube/mediaquery/lib/provider/bitchute");
 const BandCamp = require("@cytube/mediaquery/lib/provider/bandcamp");
+const Nicovideo = require("@cytube/mediaquery/lib/provider/nicovideo");
 const Streamable = require("@cytube/mediaquery/lib/provider/streamable");
 const TwitchVOD = require("@cytube/mediaquery/lib/provider/twitch-vod");
 const TwitchClip = require("@cytube/mediaquery/lib/provider/twitch-clip");
@@ -416,6 +417,16 @@ var Getters = {
         }).catch(error => {
             callback(error.message || error);
         });
+    },
+
+    /* Niconico */
+    nv: function (id, callback) {
+        Nicovideo.lookup(id).then(video => {
+            video = new Media(video.id, video.title, video.duration, "nv", video.meta);
+            callback(null, video);
+        }).catch(error => {
+            callback(error.message || error);
+        });
     }
 };
 
diff --git a/src/utilities.js b/src/utilities.js
index c5ed5264..92fa8cdc 100644
--- a/src/utilities.js
+++ b/src/utilities.js
@@ -216,6 +216,8 @@
             case "od":
                 const [user,video] = id.split(';');
                 return `https://odysee.com/@${user}/${video}`;
+            case "nv":
+                return `https://www.nicovideo.jp/watch/${id}`;
             default:
                 return "";
         }
diff --git a/templates/channel.pug b/templates/channel.pug
index 8b52f3fc..a2c04795 100644
--- a/templates/channel.pug
+++ b/templates/channel.pug
@@ -252,6 +252,7 @@ html(lang="en")
     script(defer, src="https://www.youtube.com/iframe_api")
     script(defer, src="https://api.dmcdn.net/all.js")
     script(defer, src="https://player.vimeo.com/api/player.js")
+    script(defer, src="/js/niconico.js")
     script(defer, src="/js/peertube.js")
     script(defer, src="/js/sc.js")
     script(defer, src="/js/video.js")
diff --git a/www/js/niconico.js b/www/js/niconico.js
new file mode 100644
index 00000000..1cb2d572
--- /dev/null
+++ b/www/js/niconico.js
@@ -0,0 +1,234 @@
+/*
+ *    Niconico iframe embed api
+ *    Written by Xaekai
+ *    Copyright (c) 2022 Radiant Feather; Licensed AGPLv3
+ *
+ */
+class NicovideoEmbed {
+    static origin = 'https://embed.nicovideo.jp';
+    static methods = [
+        'loadComplete',
+        'mute',
+        'pause',
+        'play',
+        'seek',
+        'volumeChange',
+    ];
+    static frames = [
+        'error',
+        'loadComplete',
+        'playerMetadataChange',
+        'playerStatusChange',
+        'seekStatusChange',
+        'statusChange',
+        //'player-error:video:play',
+        //'player-error:video:seek',
+    ];
+    static events = [
+        'ended',
+        'error',
+        'muted',
+        'pause',
+        'play',
+        'progress',
+        'ready',
+        'timeupdate',
+        'unmuted',
+        'volumechange',
+    ];
+
+    constructor(options) {
+        this.handlers = Object.fromEntries(NicovideoEmbed.frames.map(key => [key,[]]));
+        this.listeners = Object.fromEntries(NicovideoEmbed.events.map(key => [key,[]]));
+        this.state = ({
+            ready: false,
+            playerStatus: 1,
+            currentTime: 0.0, // ms
+            muted: false,
+            volume: 0.99,
+            maximumBuffered: 0,
+        });
+
+        this.setupHandlers();
+        this.scaffold(options);
+    }
+
+    scaffold({ iframe = null, playerId = 1, videoId = null }){
+        this.playerId = playerId;
+        this.messageListener();
+        if(iframe === null){
+            if(videoId === null){
+                throw new Error('You must provide either an existing iframe or a videoId');
+            }
+            const iframe = this.iframe = document.createElement('iframe');
+
+            const source = new URL(`${NicovideoEmbed.origin}/watch/${videoId}`);
+            source.search = new URLSearchParams({
+                jsapi: 1,
+                playerId
+            });
+            iframe.setAttribute('src', source);
+            iframe.setAttribute('id', playerId);
+            iframe.setAttribute('allow', 'autoplay; fullscreen');
+            iframe.addEventListener('load', ()=>{
+                this.observe();
+            })
+        } else {
+            this.iframe = iframe;
+            this.observe();
+        }
+    }
+
+    setupHandlers() {
+        this.handlers.loadComplete.push((data) => {
+            this.emit('ready');
+            this.state.ready = true;
+            Object.assign(this, data);
+        });
+        this.handlers.error.push((data) => {
+            this.emit('error', data);
+        });
+        this.handlers.playerStatusChange.push((data) => {
+            let event;
+            switch (data.playerStatus) {
+                case 1: /* Buffering */ return;
+                case 2: event = 'play'; break;
+                case 3: event = 'pause'; break;
+                case 4: event = 'ended'; break;
+            }
+            this.state.playerStatus = data.playerStatus;
+            this.emit(event);
+        });
+        this.handlers.playerMetadataChange.push(({ currentTime, volume, muted, maximumBuffered }) => {
+            const self = this.state;
+
+            if (currentTime !== self.currentTime) {
+                self.currentTime = currentTime;
+                this.emit('timeupdate', currentTime);
+            }
+
+            if (muted !== self.muted) {
+                self.muted = muted;
+                this.emit(muted ? 'muted' : 'unmuted');
+            }
+
+            if (volume !== self.volume) {
+                self.volume = volume;
+                this.emit('volumechange', volume);
+            }
+
+            if (maximumBuffered !== self.maximumBuffered) {
+                self.maximumBuffered = maximumBuffered;
+                this.emit('progress', maximumBuffered);
+            }
+        });
+        this.handlers.seekStatusChange.push((data) => {
+            //
+        });
+        this.handlers.statusChange.push((data) => {
+            //
+        });
+    }
+
+    messageListener() {
+        const dispatcher = (event) => {
+            if (event.origin === NicovideoEmbed.origin && event.data.playerId === this.playerId) {
+                const { data } = event.data;
+                this.dispatch(event.data.eventName, data);
+            }
+        }
+        window.addEventListener('message', dispatcher);
+
+        /* Clean up */
+        this.observer = new MutationObserver((alterations) => {
+            alterations.forEach((change) => {
+                change.removedNodes.forEach((deletion) => {
+                    if(deletion.nodeName === 'IFRAME') {
+                        window.removeEventListener('message', dispatcher)
+                        this.observer.disconnect();
+                    }
+                });
+            });
+        });
+    }
+
+    observe(){
+        this.state.receptive = true;
+        this.observer.observe(this.iframe.parentElement, { subtree: true, childList: true });
+    }
+
+    dispatch(frame, data = null){
+        if(!NicovideoEmbed.frames.includes(frame)){
+            console.error(JSON.stringify(data, undefined, 4));
+            throw new Error(`NicovideoEmbed ${frame}`);
+        }
+        [...this.handlers[frame]].forEach(handler => {
+            handler.call(this, data);
+        });
+    }
+
+    emit(event, data = null){
+        [...this.listeners[event]].forEach(listener => {
+            listener.call(this, data);
+        });
+        if(event === 'ready'){
+            this.listeners.ready.length = 0;
+        }
+    }
+
+    postMessage(request) {
+        if(!this.state.receptive){
+            setTimeout(() => { this.postMessage(request) }, 1000 / 24);
+            return;
+        }
+        const message = Object.assign({
+            sourceConnectorType: 1,
+            playerId: this.playerId
+        }, request);
+
+        this.iframe.contentWindow.postMessage(message, NicovideoEmbed.origin);
+    }
+
+    on(event, listener){
+        if(!NicovideoEmbed.events.includes(event)){
+            throw new Error('Unrecognized event name');
+        }
+        if(event === 'ready'){
+            if(this.state.ready){
+                listener();
+                return this;
+            } else {
+                setTimeout(() => { this.loadComplete() }, 1000 / 60);
+            }
+        }
+        this.listeners[event].push(listener);
+        return this;
+    }
+
+    mute(state){
+        this.postMessage({ eventName: 'pause', data: { mute: state } });
+    }
+
+    pause(){
+        this.postMessage({ eventName: 'pause' });
+    }
+
+    play(){
+        this.postMessage({ eventName: 'play' });
+    }
+
+    loadComplete(){
+        this.postMessage({ eventName: 'loadComplete' });
+    }
+
+    seek(ms){
+        this.postMessage({ eventName: 'seek', data: { time: ms } });
+    }
+
+    volumeChange(volume){
+        this.postMessage({ eventName: 'pause', data: { volume } });
+    }
+
+}
+
+window.NicovideoEmbed = NicovideoEmbed;
diff --git a/www/js/util.js b/www/js/util.js
index aeef49e7..bdc3bfbf 100644
--- a/www/js/util.js
+++ b/www/js/util.js
@@ -67,6 +67,8 @@ function formatURL(data) {
         case "od":
             const [user,video] = data.id.split(';');
             return `https://odysee.com/@${user}/${video}`;
+        case "nv":
+            return `https://www.nicovideo.jp/watch/${data.id}`;
         default:
             return "#";
     }
@@ -1406,6 +1408,11 @@ function parseMediaLink(url) {
                 return { type: 'bc', id: `${data.pathname.slice(7).split('/').shift()}` }
             }
 
+        case 'nicovideo.jp':
+            if(data.pathname.startsWith('/watch/')){
+                return { type: 'nv', id: `${data.pathname.slice(7).split('/').shift()}` }
+            }
+
         case 'odysee.com':
             const format = new RegExp('/@(?<user>[^:]+)(?::\\w)?/(?<video>[^:]+)');
             if(format.test(data.pathname)){