NihongoTube

The ultimate Japanese immersion building tool for YouTube.

NihongoTube is the ultimate extension for building Japanese immersion on YouTube. Distracting video recommendations, no more! With this extension all the recommended content you will see on YouTube will be in your target language Japanese. Highlights: 💪 Filtering for 10+ types of recommendations, content, comments, and pages. 🎚️ Filter videos by JLPT level to see only content at your level. 🗃️ JLPT estimates on every video, crowd-checked for accuracy. 🗾 100+ recommended channels on the home page to get you started. 👤 No more separate YouTube accounts needed for immersion. ⏰ Watch time statistics for immersion tracking. 📱 Mobile support for immersion on the go. 📝 Find videos with real Japanese subtitles, not auto-generated captions. 🙉 Automatically undo auto-dubbing. 🛑 Stop autoplay from pulling you into non-Japanese videos. ✅ One-click toggle to pause all filtering. ❤️ About NihongoTube is almost a year old, built with love by hardcore Japanese learners. This is the tool we wish we had on the way to N1 and beyond! 🔒 Privacy To build resilience against YouTube changes, JLPT estimates can be anonymously contributed to NihongoTube's servers. The data sent only contains video and JLPT estimate information. No personal data or browsing history is collected. You can opt-out anytime in settings. 💬 Discord Join the community, share videos, report bugs or request features. https://discord.com/invite/TVHH8e9UyQ 📱 Mobile Enjoy NihongoTube on mobile with any Chromium/Firefox based browser that supports extensions. Examples include: Microsoft Edge Canary, Quetta Browser, Firefox for Android, Orion for iOS. 📋 Changelog Version 6.6.0 (06/10/26) • Feature: the stats page now shows 'last 7 days' and 'this week' watch time totals (thanks to Tao on Discord). • Feature: stats weeks now start on Monday where that is the local convention (thanks to Tao on Discord). • Feature: added support for YouTube live stream pages (thanks to garret1317 on Discord). • Feature: installing or updating no longer reloads every open YouTube tab (thanks to praschke on Firefox Add-ons). • Fix: home page videos no longer jump around while loading. • Fix: the home page no longer shows the same video twice. • Fix: English podcast playlists on the home page are now filtered out. • Fix: hovering around the tags on a recommendation card no longer breaks the click cursor. • Misc: the stats heatmap now labels every day of the week (thanks to Tao on Discord). • Misc: stats page buttons now show a pointer cursor on hover. • Misc: 7 new recommended channels (N2×4, N3×2, N5×1). Version 6.5.0 (30/08/26) • Feature: added watch time tracking for unrated (JLPT N/A) Japanese videos, with a new N/A filter on the stats page. • Feature: added a START button to the JLPT box to record watch time for an unrated video you know is Japanese. • Feature: added a 'Show all videos' button to the 'no Japanese content' notice on channel pages. • Fix: JLPT badges now appear on channel page videos in the mobile app. • Fix: the 'No Japanese content available' notice no longer jumps around on channel pages. • Misc: new installs now show videos without subtitles by default (existing setups keep their filter). • Misc: removed the pop-in animation from the NihongoTube logo on YouTube. • Misc: 3 new recommended channels (N2×1, N4×2). Version 6.4.1 (10/08/26) • Fix: transcript and video title requests are now deduplicated (performance improvement). • Fix: JLPT estimation now happens in the background to keep page loading fast. • Fix: JLPT badges no longer flicker when changing pages. • Misc: 3 new recommended channels (N2×2, N3×1). Version 6.4.0 (23/07/26) • Feature: watch time rows can now be edited, including time, date & JLPT level (thanks to LeggoSF on Discord). • Feature: click a heatmap day to filter your watched videos. • Feature: recommended channels can now be filtered by tag. • Feature: JLPT difficulty box added to mobile watch pages. • Feature: new JLPT box metrics including word count, character count & line density (thanks to Vicky for the suggestion). • Fix: watch time tracking no longer stops until the page is refreshed (mobile). • Fix: video duration in watch page stats on mobile. • Misc: refreshed recommended channel tags, names & descriptions. • Misc: added hover feedback to recommended channel cards. • Misc: 2 new recommended channels (N1×1, N4×1). Version 6.3.1 (13/07/26) • Feature: added dismiss button to recommendation shelf • Misc: improved pop-up experience Version 6.3.0 (26/06/26) • Feature: light mode added! • Fix: day reset now also applies to weekly & heatmap stats • Fix: hiding JLPT badges now keeps filters & watch stats on • Fix: no more white flash when opening extension pages in dark mode • Misc: added links between settings and the watch time stats page • Misc: 2 new recommended channels (N2×1, N5×1). Version 6.2.0 (13/06/26) • Feature: new settings setup wizard added to get the most out of NihongoTube • Feature: added option to hide videos with auto-generated subs (thanks to Ariac & Vicky on Discord) • Feature: 4 new recommended channels added (N2×2, N3×2). • Feature: new privacy setting: opt out of having your JLPT level ratings shared anonymously on our Discord Version 6.1.0 (08/06/26) • Feature: Crowdsourced JLPT level displayed on video JLPT badge Version 6.0.1 (05/06/26) • Feature: 1 new JLPT N5 recommended channel added. • Fix: reveal comments button missing on notification navigation • Misc: detected accounts live-update in settings without a page refresh • Misc: removed tabs permission to improve privacy Version 6.0.0 (25/05/26) • Feature: JLPT level filter added! • Feature: filter out videos without transcripts. • Feature: watch time day reset now configurable (thanks to Blue on Discord). • Fix: filtering and JLPT badge mounting on mobile. • Misc: 14+ new recommended channels (N1×10, N2×1, N4×2, N5×1). 📜 View all changes dating back to our first release, v1.1.0 from 25 August 2025: https://www.nihongotube.app/changelog