Available now on Windows · macOS Q4 2026

Dub your videos.
Keep them private.

Desktop AI dubbing in 70+ languages. Your video file never leaves your PC.

Run it whichever way suits the project, whether that's for privacy, quality, or cost. The video file stays on your PC either way.

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languages
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cloud providers
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on-device models
  1. Fully local
    On-device models for every step. Nothing ever leaves your machine.

    Whisper, Gemma, Kokoro and 50+ on-device models. No keys, no internet, nothing to pay per minute. Language coverage is more modest than cloud.

  2. Mix & match
    /
    Some steps on-device, others in the cloud, even a different vendor per speaker.

    Transcribe locally, translate with GPT, voice each speaker with a different vendor, all in one render. Swap any step whenever you like.

  3. Fully online
    Bring your own OpenAI, ElevenLabs or Google keys. Paid directly, no markup.

    Best quality and the full 70+ languages. You pay providers at their public rates, with no markup from us. Your video never leaves your PC.

See & hear it

Same clip. New voice.

Flip between the German original and the English dub on the exact same footage. The picture is untouched. Only the voice changes.

DE Original
Press play, then switch between German and English

Switch tracks anytime. Playback keeps its place. Loads only on play.

Private by design

Your video files never leave your PC. Cloud providers only see what you opt to send. Or go fully offline, where nothing leaves at all.

Mix any providers

OpenAI, ElevenLabs, Google, Inworld, Soniox, or on-device. Combine them inside one project. No vendor lock-in.

$5/mo, flat

Pay only to lift the 1-minute export cap. Cloud API keys go straight to providers. We don't resell tokens.

How it works

Three steps. Real editor underneath.

You get the full pipeline, with a checkpoint at every step instead of one opaque button.

STEP 01
Drop in your video
Pick source & target languages, define speakers and assign voices, then add a glossary so names and jargon stay intact.
STEP 02
AI does the heavy lifting
Separation, transcription, translation and dubbing, segment by segment, synced to the original timing. Lines that run long get speed-adjusted.
STEP 03
Edit, then export
Review each segment by confidence, tweak the text, swap voices, drag on the timeline. Then render the final video.

Built for

Who's actually using it.

Content creators
YouTube, TikTok, podcasters localizing back-catalogues.
Online educators
Course creators reaching non-English audiences.
Localization teams
Pros who care about glossary, terminology, speaker control.
Indie studios
Small video producers without enterprise budgets.
Public sector
Where data must stay on the local network.
Educators & NGOs
Global audiences, tight budgets, sensitive content.

Signature feature · interactive

Build your pipeline.
Watch it react.

Pick the right tool for each step instead of committing to one stack. Choose one or more providers per step and watch your privacy update in real time. It's the same choice you make inside the app.

Works with
OpenAI ElevenLabs Google Gemini Inworld Soniox + 53 on-device
Configure each step

One provider per step. Voice can use several (a different voice per speaker).

TRANSCRIBE Speech → text
TRANSLATE Keep tone & glossary
SEPARATE Vocals / background split
Always on-device
VOICE Text → speech · pick one or more
Your pipeline
  1. SeparateOn-device
  2. Transcribe
  3. Translate
  4. Voice
PRIVACY
WHAT LEAVES YOUR PC
WHY THIS MATTERS

Every cloud dubbing tool ships its own voice library, its own translator, its own transcription. If their women's voices sound robotic, you're stuck. If their translator butchers your jargon, you're stuck.

We don't build voices or translators. We wire the best ones together, so you always pick the right tool for the job, swap freely, and never wait on one vendor to fix a model.

EVERY PROVIDER, ONE WORKBENCH
6 providers · 70+ languages · 53 on-device models

Real editor

You edit every segment.

A timeline with the original waveform. Drag, resize, delete, insert segments. Per-segment confidence scores so you know where to look. Speed warnings when a translation overflows its slot, so you fix it before you render.

  • Confidence per segment. Low-confidence parts get highlighted, so you review only what matters.
  • Speed warnings before render. Catch >130% speed-ups when text won't fit the slot.
  • Per-speaker provider and voice. Each speaker gets its own provider, voice and speed. Set it once and it applies across every segment.
  • Glossary & project context. Tell the AI what your project is about. Names stay names. Jargon stays jargon.
  • Voice emotion tags. [whispers], [laughs], [slow]: studio-grade direction where the model supports it.
  • Background-mix slider. Don't kill the room tone. Bring it back in.

Try before you trust

Pick the right tool for the job.

Every video raises the same questions. Which translator keeps my jargon? Which transcriber handles a noisy interview? Which voice sounds right for this character? Which separator gives the cleanest vocals?

Most dubbing apps ask you to commit before you find out. We don't. Four built-in tests let you A/B every provider on your actual source material, side by side, with your own keys (no markup) or fully offline. Tap any preview to enlarge.

Tests run with your own API keys for cloud providers, or fully offline for on-device models. No subscription required. The 1-minute export cap only applies to the final rendered video.

Pricing

Two plans. No tricks.

All features available on both. The only thing the subscription lifts is the 1-minute export cap.

Free

$0

All features. Final video exports capped at 1 minute. Use it to test, compare, prototype, even ship short clips.

  • Every provider, every voice, every language
  • On-device models, fully offline and free
  • Multi-speaker, source separation, glossary
  • Commercial use allowed
  • No watermark
  • Final export limited to 1 minute
Download free
Pro

Pro

$5/ mo

Everything in Free, with no cap on final export length. That's the only difference.

  • Unlimited final export length
  • All features, all providers
  • On-device fully included
  • Cloud providers via your own API keys
  • No token markup, ever
  • Cancel anytime
Start with Free, upgrade in-app
Enterprise

More than the app? Let's build it.

The desktop app handles most dubbing work out of the box, and Free or Pro is all most people ever need. Enterprise is custom work we do with you when you're running translation at scale, have strict data-handling rules, or need models and pipelines that don't exist yet. There's no fixed package. We scope it to what your project actually requires.

Custom development. New features, file formats, or pipeline steps built around your workflow.
Private & on-device models. Wire in additional offline, fine-tuned, or domain-specific models, including your own.
Translation infrastructure. Help designing and standing up dubbing & localization pipelines for a team or platform.
Batch & automation. High-volume, scripted, and headless workflows beyond one video at a time.
On-prem & air-gapped. Fully local deployments for sensitive content that can never touch the cloud.
Priority support & training. A direct line to the people who build it, plus onboarding for your team.

Tell us what you're trying to do, even if you're not sure it's possible yet. We'll give you a straight answer.

How AI provider costs work

If you pick cloud providers (OpenAI, ElevenLabs, Google, Inworld, Soniox), you bring your own API key and pay them directly, at their public rates, with no markup, no orchestration fee, and nothing charged per minute. In practice a full hour of video, transcribed, translated and dubbed, typically lands around a dollar in provider fees, sometimes less, depending on which models you pick. Stay on-device and you pay no one: the models run on your machine for free.

What this is

A desktop tool with deliberate trade-offs.

Every product makes choices. Here are the ones behind this one, so you know what you're getting before you install it.

WHAT IT IS
  • A desktop app, not a web service. Your video files live and stay on your machine. We never upload them anywhere.
  • Provider-agnostic. Use OpenAI, ElevenLabs, Google, Inworld, Soniox, or fully offline models. Mix them freely inside one project.
  • Your AI bill, your AI keys. Cloud providers are paid directly with your own API keys. We don't resell tokens or add markup.
  • A real segment editor. Waveform, timecodes, confidence scores, speed warnings, draggable segments. Built for review, not one-click magic.
  • Flat $5/mo Pro tier. Lifts the 1-minute export cap. No per-minute charges from us. No annual contract.
  • Free tier is generous on purpose. Every feature, every provider, every voice. No watermark. The only limit is final video length.
WHAT IT ISN'T
  • Not a voice cloning tool. We don't clone voices from your source. You can use clones already created on your provider's account, but the app itself doesn't do cloning.
  • Not a lip-sync tool. We dub the audio track. The video frames stay untouched, so mouth movements remain as filmed.
  • Not a subtitle tool. Dubbing only: no subtitle export, import, or embedding. A possible future addition.
  • Not for music or songs. Dialogue, narration, podcasts, interviews and tutorials work well. Sung performances aren't what AI dubbing handles today.

FAQ

Common questions.

Can I use the free version for commercial videos?
Yes. The free tier has no commercial-use restrictions. The only limit is final video export length (1 minute). Generated audio, tests and comparisons are all usable in monetized content.
Do you put a watermark on exported videos?
No. We never watermark output, on any tier, free or paid.
Do you store or see my video files?
No. The app runs on your PC. Video files never leave your machine. If you choose cloud providers, only audio and text snippets are sent to them, never the video file itself. Use on-device models and nothing leaves at all.
What exactly does $5/month unlock?
Unlimited length for final video exports. That's the only difference between Free and Pro. All features, all providers, all languages are available on the free tier.
Do I need to pay AI providers separately?
If you use cloud providers (OpenAI, ElevenLabs, Google, Inworld, Soniox) you bring your own API key and pay the provider directly, with no markup from us. If you use on-device models (Sherpa, Gemma, Kokoro) you pay no one: they run on your machine for free.
Will there be a Mac version?
Yes, planned for Q4 2026. Linux, mobile, and web are not on the roadmap by design. Large video files and AI inference belong on a desktop, not a browser tab.
How many languages does it actually support?
70+ for text-to-speech, broadly the same for transcription and translation depending on the provider you pick. On-device offers 53 voices and models for fully offline workflows.
Why no mobile or web version?
Because both compromise on the things that matter for serious dubbing work. Web tools force you to upload multi-gigabyte video files to someone else's servers. Mobile can't run on-device AI models well. We picked desktop on purpose, and we're keeping it that way.
Can it translate music or songs?
Realistically, no. The app is built for spoken-word audio: dialogues, narration, podcasts, interviews, tutorials. Musical performances have rhythm, melody, and emotional delivery that current AI dubbing pipelines aren't designed to preserve. Source separation can isolate vocals from a backing track, but the result won't replace a song. If your video has singing as a key element, expect to handle it separately.
Does it support voice cloning?
Not directly. The app itself doesn't clone voices from your source audio. If you've already created a voice clone with a provider that supports it (for example, an ElevenLabs custom voice on your account), that clone shows up as one of your selectable voices when you use that provider. So cloning is possible through your provider's account, not as a feature inside the app.
Does it lip-sync the dubbed video?
No. We dub the audio track but never modify the video itself. The speaker's original mouth movements stay as they were filmed. For tutorials, podcasts, narration, training videos, and most voiceover work this is a non-issue. If pixel-perfect lip-sync to dubbed audio is essential for your project, you'd need a separate AI lip-sync tool to layer on top of our render.
Does it generate or import subtitles?
Not today. The app is focused on dubbing: replacing the audio track in another language. Subtitle export, import, and embedding are not in scope in the current version. They're a candidate for a future release, but with no committed timeline. If subtitles are central to your workflow, a dedicated subtitling tool (or a CAT tool with subtitling support) will serve you better right now.
Are there alternatives?
Of course. Tools we know of in adjacent spaces, for you to evaluate:
  • Cloud dubbing services: HeyGen, Rask AI, ElevenLabs Dubbing, Synthesia
  • Offline desktop apps: AutoDub (Mac)
  • Open-source DIY: VideoLingo, pyVideoTrans, KrillinAI, Bluez-Dubbing
  • Professional CAT for text translation (not dubbing): Trados, memoQ, Phrase
Each takes a different angle on price, hosting, control, and use case. Pick what fits.

Roadmap

Where it's headed.

We ship deliberately. Here's what's live, what's next, and what we're choosing not to build.

  1. SHIPPEDNow

    Windows app

    Live on the Microsoft Store. Every feature, every provider, on-device or cloud, and never a watermark.

  2. IN PROGRESSQ4 2026

    macOS app

    A native Mac build with the same private, mix-and-match dubbing workflow you get on Windows.

  3. EXPLORINGLater

    Subtitles

    Subtitle export, import and embedding are a candidate for a future release. On the table, no committed date.

Not on the roadmap, by design

No Linux, mobile, or web version. Multi-gigabyte video files and on-device AI inference belong on a desktop, not uploaded to someone else's server or squeezed into a browser tab. Staying desktop-first is what makes the privacy guarantees real.

Ready to dub privately?

Free to download. Try every feature, every provider, every language. Pay $5/mo only if you need exports longer than a minute.

Get it free on Microsoft Store

Windows · macOS Q4 2026

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Bug, idea, or just thoughts. We read everything.