Upload video, audio, or paste text. LinguaSub transcribes, translates with a subtitle-tuned GPT-5.4 model, and outputs an SRT, VTT, or subtitled MP4 ready to publish. No timeline software required.
Start free →Drag your video or audio into the browser. MP4, MOV, WEBM, MP3, WAV — up to 5 GB.
Whisper detects timestamps and writes the transcript in the source language you pick.
GPT-5.4 rewrites each line into the target language with tone, humour and sarcasm preserved.
Live editor lets you click a segment, pause the video on it, retype the text, save.
Download SRT, VTT, or a burned-in MP4 you can post anywhere.
Upload a Hindi video, get an English SRT that you paste into YouTube Studio → Subtitles → Add Language. YouTube's own auto-caption doesn't cross the language barrier — ours does.
Reels perform better with burnt-in text because 80% of viewers watch on mute. Render the subtitled MP4 in LinguaSub, upload it directly.
Turn a Hindi onboarding video into English, Chinese, or French for global teams — batch through by re-running with different target languages.
Feature-length Indian films can be transcribed and translated in one pass, then hand-polished in the editor before festival submission.
Even without video, automatic subtitle translation gives you a translated transcript you can turn into blog posts, newsletters, or show notes.
You upload media in one language. Software transcribes it into text with timestamps, translates each line into your target language, and outputs a subtitle file (SRT/VTT) or a video with the subtitles burned into the frame. No manual typing.
YouTube's built-in captions are language-locked — they show the original language only. Google Translate on top of that is literal, robotic, and misses tone. LinguaSub is a purpose-built tool: it uses a subtitle-specific translation prompt, gives you an editor, and exports finished files ready to publish.
No. Everything runs in the browser. Chrome, Safari, Firefox, Edge, Brave — all work. Mobile browsers work too but a laptop is easier for editing.
For clean audio in major languages: 90–95% accurate at the transcription step, 85–92% accurate at the translation step. LinguaSub's editor is designed for that last 5–15% — you pause the video on any imperfect segment and fix it in-place.
The web UI is one-at-a-time today. A REST API for batch processing is on the Studio and Agency roadmap.
21 total, any-to-any: Hindi, Bhojpuri, Magahi, Awadhi, Urdu, Tamil, Telugu, Bengali, Malayalam, Gujarati, Punjabi, English, Chinese, French, German, Russian, Japanese, Marathi, Spanish, Korean, Italian.
10 minutes free — one time for new users. No card needed.