Extract subtitles already burned into your video, or generate brand new ones from spoken audio — Yoruba, Hausa, Igbo, English and more. Translate for wider audiences. All on your own PC.
Windows desktop app · SRT · VTT · ASS · TXT · JSON · Runs locally, your footage never leaves your PC · 10 free credits on signup, no card required
Every hour of dialogue is an hour of pausing, typing, and timing lines by ear — or a hefty invoice from a transcription service that still needs your footage uploaded somewhere.
Typing and timestamping dialogue by hand for a 90-minute feature can take longer than the shoot itself.
Yoruba, Hausa and Igbo-language work stays local without translated captions — cutting off Netflix, YouTube and diaspora viewers.
Most subtitle tools require sending your footage to someone else's server before you see a single line back.
Already has subtitles burned into the picture? Or just raw dialogue with nothing written down? Nu-Century handles both, the same afternoon.
For footage that already has burned-in captions — old masters, downloaded clips, archive material — read the text straight off the frame.
No captions at all — just dialogue. Transcribe it from scratch with Whisper, then translate it if you need a second language.
Queue up an entire season or shoot day. Walk away — it works through the list on its own.
Power cut, laptop closed, whatever — already-finished files are skipped automatically when you restart a batch.
SRT, VTT, ASS, TXT and JSON, exported side by side — drop straight into Premiere, DaVinci, or your NLE of choice.
Not an afterthought bolted onto an English-first tool — set as first-class spoken and target languages throughout.
OCR and transcription run locally. Nothing about your raw video gets uploaded for the core processing to work.
Let AI quietly fix leftover OCR typos or translate with real context — on by choice, never forced, metered fairly per use.
Three steps, timed the way an editor thinks about a timeline.
Drag a video, a folder, or a whole season into the queue. Video or audio-only, doesn't matter.
Already has captions on screen? Extract them. Just dialogue? Generate new ones, with translation if you need it.
Watch real progress as it works, then get clean SRT/VTT/ASS files sitting in your output folder.
OCR extraction and speech transcription both run locally. There's no mandatory upload step standing between your raw cut and your finished captions — and no waiting on someone else's queue.
Every plan includes a monthly credit allowance for extraction and transcription, with pay-as-you-go for anything beyond it. Pick a plan from inside the app once you've downloaded it — every account starts with free trial credits either way.
Yes — OCR extraction and Whisper transcription both run locally and don't need a connection. Only the optional AI cleanup and translation features talk to a server, since those use Claude.
Any common video format for both extraction and transcription, plus audio-only files (mp3, wav, m4a, flac) for the transcription side — useful if you've already pulled the audio yourself.
Every extracted line gets a confidence score so you can see what to double-check rather than trusting it blindly. Accuracy depends on your source footage and audio quality, like any OCR or speech tool.
It runs on a normal Windows PC. Larger Whisper models and bigger batches take longer on modest hardware, but there's no dedicated GPU requirement — everything defaults to running on CPU.
Top up any time at ₦80/credit, no plan change needed. Files you've already processed are already yours — nothing gets held back or reverted.
Yes. There's no lock-in — switch to pay-as-you-go or stop entirely whenever you want.
No separate web checkout — download and open the app first. Every account starts with 10 free credits automatically, and you choose a plan or top up from right inside the app whenever you're ready, paying securely through Paystack.
10 free credits, no card required. Have your first file captioned in the time it takes to make tea.
Download for Windows