LangBlock: YouTube Language Filter

Hide YouTube videos spoken in languages you choose, in search and recommendations. Free, private, no data collected.

LangBlock hides YouTube videos in languages you don't want to see. Pick the languages to block (for example Hindi), and matching videos disappear from search results, the home page, your feeds, the "Up next" list and channel pages. HOW IT WORKS LangBlock checks each video on your device, using three signals: • Spoken language: LangBlock reads the spoken language YouTube itself has recorded for the video, namely the language of its automatic captions and its original audio track. This catches videos whose titles are in English or were auto-translated by YouTube. Each video is checked once and the answer is remembered on your device. • Language named in the title: titles such as "in Hindi", "(Hindi)", "Urdu / Hindi" or "Hindi dubbed" count, even when YouTube labels the video differently. "Learn Hindi" or "Hindi vs Urdu" don't. • Title check: your browser's built-in language detector and a writing-system check read the title, so obvious matches (for example a title written in Devanagari) are hidden instantly. When YouTube knows the spoken language, that wins, so a French title on a video spoken in English stays visible. FEATURES • Block any number of languages (80+ supported) • Block every language except your own in one click, or unblock all, with Undo • Also filters playlists, by checking the videos they list • Choose where to filter: search, home and feeds, "Up next", channel pages • Optionally hide videos that offer a dubbed audio track in a blocked language • Hide videos completely, or fade them out with a label saying why • Troubleshooting mode shows on each video why LangBlock hid or kept it • Works on www.youtube.com and m.youtube.com (Firefox for Android) • Light and dark mode • Settings in 17 languages, following your browser's language FREE AND PRIVATE LangBlock is completely free with no ads, no accounts and no tracking. It collects no data and sends nothing to the developer or any third party. A small, optional "Support LangBlock" link lets you donate if you'd like to. PERMISSIONS, AND EXACTLY WHAT EACH ONE DOES • "Read and change your data on www.youtube.com and m.youtube.com" (site access): lets LangBlock see the list of videos on YouTube pages, hide the ones in blocked languages, and load a video's YouTube page in the background to read its spoken-language information. LangBlock has no access to any other website. • "Storage": saves your settings (which languages to block and your options) and remembers the language of videos already checked, so they are not checked again. Remembered videos stay on your device and can be cleared at any time from the settings page. If your browser syncs extension settings, your settings (not the remembered videos) sync with your own browser account. LangBlock asks for nothing else: no access to your tabs, browsing history, cookies, downloads or other sites. LIMITS No language filter is perfect. Videos without captions or audio-track information (often music or brand-new videos) are judged by their title and description only, and short titles in the Latin alphabet only count when their language is clear. Videos in languages that share a writing system (for example Hindi and Marathi) are told apart by the browser's language detector. If something is hidden or shown wrongly, turn on troubleshooting mode to see why.