Language-learning video player
Learn languages from the videos you love.
Open a video file or paste a link and watch with bilingual subtitles. Replay any line, loop it, and click a word to see what it means. No subtitles? AI writes them from the audio.
Free to start, no sign-up · Videos stay on your device
Features
Built for listening practice
Everything a learner needs around a video, and nothing that gets in the way.
Bilingual subtitles
The original and a translation, one above the other, translated a few lines ahead so they are ready on time.
Line by line
Go to the previous or next line with one key, and replay the current one as often as you like.
Loops and speed
Loop a line or any A–B section, and slow it down until every word is clear.
Click to look up
Click a word in the subtitles for its meaning and pronunciation, with AI example sentences when you want more.
AI subtitles
No subtitles? AI transcribes the audio into time-coded lines you can study and export.
Free or AI translation
Free translation for everyday use, or AI translation that follows the context of the scene.
How it works
Three steps to start
- 1
Add a video
Open a file from your computer or paste a direct video link. Nothing is uploaded.
- 2
Get subtitles
Import an SRT, VTT or ASS file, or let AI generate them from the audio.
- 3
Study line by line
Watch with a translation, replay and loop lines, and look up words as you go.
Privacy
Your videos stay yours
Use it without an account. Sign in with Google only when you want your library on more than one device or AI features.
Stays on this device
Video files play straight from your computer and are never uploaded. Without an account, your library and subtitles stay in this browser.
Synced when signed in
Sign in with Google and your library and subtitles are saved to your account, encrypted in transit and at rest. Video files still stay on your devices.
Pricing
Free to watch. Pro when you want AI.
Playback, imported subtitles and free translation cost nothing. For AI subtitles and AI translation, subscribe to Pro or Pro+ for monthly credits, or top up whenever you need.
Free
Everything you need to study with subtitles.
$0forever
- Unlimited local videos and subtitles, no account needed
- Bilingual subtitles, line replay, loops and word lookup
- Free subtitle translation (Google)
- Sync up to 20 videos with Google sign-in
Pro
For learning with videos a few times a week.
$5/mo
500 credits a month · about 250 min of AI subtitles
- Everything in Free
- 500 credits every month for AI features
- Unused credits carry over and never expire
- AI subtitles, context-aware AI translation and AI word examples
- Up to 2000 videos in your cloud library
Pro+
For learning with videos every day.
$10/mo
1200 credits a month · about 600 min of AI subtitles
- Everything in Pro
- 1200 credits every month
- 20% more credits per dollar than Pro
- Unused credits carry over and never expire
- Upgrade from Pro anytime and pay only the difference
Roughly how many credits does a video use?
| Video length | AI subtitles | AI translation |
|---|---|---|
| 10 min | 20 credits | 15–20 credits |
| 30 min | 60 credits | 45–60 credits |
| 60 min | 120 credits | 90–120 credits |
AI subtitles are billed by audio length: 2 credits per minute. AI translation is billed by lines: 1 credit per 10 lines. Faster speech and denser subtitles mean more lines; most videos have about 15–20 lines a minute. Free translation uses no credits.
Top up anytime
Anyone signed in can top up, with or without a subscription. Top-up credits never expire: 120 credits per US$1.
Secure checkout by Creem, taxes included at checkout · Credits are usage-based: subscriptions and top-ups are non-refundable · You’ll sign in with Google first
What can I do for free?
Play local videos and video links, import subtitles, translate them with the free engine, replay and loop lines, and look up words. Without an account it is unlimited on this device; signed in, up to 20 videos sync to your account.
How are credits counted?
AI subtitles use 2 credits per minute of audio. AI translation uses 1 credit per 10 lines; most videos have 15–20 lines a minute, more for fast speech. An AI word example uses 1 credit. If a request fails, its credits are returned automatically.
Do subscription credits expire?
No. Pro adds 500 and Pro+ adds 1200 credits each time a monthly payment goes through. Unused credits carry over, and credits you already have stay usable after you cancel.
Can I cancel or change plans?
Yes. Cancel anytime from the customer portal and keep your plan until the end of the month you paid for. Upgrading from Pro to Pro+ charges only the prorated difference and adds the extra credits right away.
Can I get a refund?
No. LangScribe is billed in credits, so subscriptions and top-ups are non-refundable once paid, including unused credits. Canceling stops future renewals. Try the free features first to make sure LangScribe suits you.
Who handles my payment?
Creem, our Merchant of Record, runs checkout and handles taxes and invoices in 190+ countries. We never see your card details.
For developers
LangScribe is also a SaaS starter template
Google sign-in, subscriptions, credits, Workers AI, 10 languages and SEO are already wired. Get the full source and ship your own product.
Questions
Do I need an account?
No. Playback, imported subtitles and free translation work without an account, and your library stays on this device. AI subtitles and AI translation need a Google sign-in and credits.
Are my videos uploaded?
No. Video files are played straight from your device. For AI subtitles, only the audio is extracted in your browser and sent in short chunks for transcription.
Which videos and subtitles work?
Video files your browser can play (usually MP4 and WebM), direct video links and HLS (.m3u8) streams. Subtitles can be imported as SRT, VTT or ASS and exported as SRT.
How do credits work?
AI subtitles are billed by audio length, AI translation by number of lines, and AI word examples per lookup. Pro and Pro+ add credits every month and unused credits carry over; anyone signed in can also top up. The Pricing section shows estimates for videos of different lengths. Free translation never uses credits.
Press play on your next language.
No sign-up, no setup. Open a video and start learning.
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