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LinguaSub is an AI subtitle studio that turns any video, audio or text in one of 21 supported languages into subtitles in another. It's built for creators, educators and localisation teams who care about tone, not just literal word-for-word accuracy.
YouTubers, Instagram/TikTok creators, wedding videographers, journalists, film festival submitters, coaching institutes, EdTech teams, corporate L&D — anyone with video in one language and an audience in another.
No. LinguaSub runs entirely in your browser. Chrome, Safari, Firefox, Edge and Brave are all supported. Mobile browsers work but editing is easier on a laptop.
21, any-to-any: Hindi, Bhojpuri, Magahi, Awadhi, Urdu, Tamil, Telugu, Bengali, Malayalam, Gujarati, Punjabi, English, Chinese, French, German, Russian, Japanese, Marathi, Spanish, Korean, Italian.
Yes. All 21 languages are available on both source and target. Click the swap button between the two dropdowns to flip them in one tap.
Yes, though Whisper's core models are strongest for standard Hindi. LinguaSub sends Whisper a dialect-aware prompt to bias the transcription, and GPT-5.4 handles dialect-specific expressions in translation. Clean audio gives the best results.
Handled cleanly. We read the full transcript for context and translate each line to natural target-language English (or whatever target you picked), keeping proper nouns intact.
Video: MP4, MOV, WEBM, MKV, AVI. Audio: MP3, WAV, M4A, OGG, FLAC. Text: paste directly into the text tab.
Up to 5 GB per upload. Larger files are chunked internally so long clips still process.
Your available minute balance applies. A 60-minute podcast uses 60 processing minutes. The free trial is one-time; paid packs add minutes without removing existing balances.
48 hours by default so you can edit against the video and re-render. After that, the original is deleted automatically. The SRT/VTT and job history stay in your account.
Yes. Every video job opens an editor with the video player next to a segment list. Click any segment to pause the video and jump to it. Edit the translated text inline and adjust start/end. Save whenever you want.
Yes — click 'Render subtitled video' in the editor. LinguaSub runs ffmpeg to burn white-on-black-outline text into the frames and produces an MP4 you can post directly to YouTube, Reels, TikTok, or WhatsApp.
SRT (SubRip, works everywhere) and VTT (WebVTT, ideal for web video players). Both are downloadable per job.
Right now the burn-in uses a default readable style (white text, black outline, 22 px, 40 px bottom margin). A style picker is on the roadmap.
10 minutes free — one time for new users. It never resets or refills. Existing users keep their remaining free balance and do not receive another grant. No card required.
Free: ₹0 for 10 minutes once for new users. Starter: ₹149 for 50 minutes, valid for 120 days. Creator: ₹499 for 150 minutes, valid for 120 days. Pro: ₹1,199 for 350 minutes, valid for 120 days. Studio: ₹2,999 for 900 minutes, valid for 120 days No automatic renewal.
Cashfree checkout charges the server-verified INR price. Each purchase adds a prepaid minute pack with its own expiry; existing balances are preserved. Nothing renews or charges automatically.
Cashfree checkout shows the payment methods available for your order, including supported Indian payment options.
No. LinguaSub does not train models on your content. Your media is transmitted to OpenAI (Whisper for transcription, GPT-5.4 for translation) for processing only — see their policies for their handling. We delete the original media from our servers after 48 hours.
Yes on any paid plan. Free-tier output is fine for personal, educational, or open-source use. See /terms.
File a takedown at /takedown. We investigate every notice and act on valid ones.
10 minutes free — one time for new users. Sign in with Google or email.