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Dub your video into another language — in your own voice.

Upload a video and get it back speaking another language — in your own voice, not a robot’s. No studio, no voice actors. Try it free.

First video free · then $2 per video up to 30 minutes

Hear it for yourself

Same video. Same voice. A different language.

It’s the same footage — only the soundtrack changes. Toggle the audio between the original and the LangSwap dub.

● Dubbed by LangSwap · same voice
Audio:

Switch the audio while it plays — the picture never changes. The cloned voice keeps the original speaker’s tone.

How it works

From upload to dubbed video in three steps.

  1. 1

    Upload your video

    Upload a talking-head video. For best results, start with one speaker and clear speech.

  2. 2

    Pick a language

    Choose a supported target language from the options in the uploader.

  3. 3

    Download your dub

    Get your video back, re-voiced in your own voice and synced to the picture. Subtitles included.

Why LangSwap

Localized video that still sounds like you.

It’s still your voice

Voice cloning carries your voice and tone into the new language. You stay recognisably you — not replaced by a stand-in narrator.

Supported languages

Choose from the language options shown in the uploader. Single-speaker videos with clear speech work best.

Automated dubbing

Upload, translate and download through one workflow. Processing time depends on video length and the queue.

Try it, then pay per video

Your first hosted video is free, then $2 per video up to 30 minutes. The code is open source for self-hosting.

Typical AI dubbing
LangSwap
A synthetic stand-in voice
Your own voice
Monthly subscription
First video free, then $2 per video
Closed black box
Open source

1,000+

videos dubbed end-to-end

$2

per video up to 30 minutes

AGPL‑3.0

fully open source

Since 2023

in production

Ilya Shigabeev, founder of LangSwap

Built by Ilya Shigabeev — speech AI researcher and machine learning engineer, speaker at DataFest 2026, with almost a decade in speech and conversational AI.

Meet the team →

For the technical

Prefer to run it yourself? Go ahead.

The entire pipeline is open source under AGPL-3.0. Run it on your own GPU and your footage never leaves your machine — no cloud, no per-minute fees. Same engine that powers the hosted app.

View on GitHub
run locally
$ git clone https://github.com/langswap-app/langswap
$ cd langswap
$ docker compose up

# open http://localhost:7860 and drop in a video

FAQ

Questions, answered.

Does it really keep my voice?

LangSwap uses voice cloning to carry characteristics of your original voice into the dub. Results vary with recording quality and language.

What languages can I dub into?

Choose from the supported language options shown in the uploader. Start with a short single-speaker talking-head video to check the result.

How much does hosted dubbing cost?

Your first video is free. After that, hosted dubbing costs $2 per video up to 30 minutes. You top up your balance before submitting more videos.

How long does it take?

Processing time depends on the length of your video and the current queue. Start with a short clip to check the result.

Is my video private?

The hosted app processes and stores your video to produce the dub. Self-host the open-source version if you need footage to remain on your own machine.

Can I run it myself?

Yes. The whole pipeline is open source under AGPL-3.0 and available on GitHub — the same engine that powers the hosted app.

Ready to be understood everywhere?

Dub your first video free. After that, hosted dubbing costs $2 per video up to 30 minutes.