There are roughly twenty AI dubbing tools you can use in 2026. Some are free, some cost hundreds of dollars a month, and most of them do something subtly different. This guide compares the major ones against what we built.
What 'real-time' actually means
Most dubbing tools are file-based: you upload a video, the tool processes it server-side for several minutes, and you get a dubbed file back. That's not what SyncDub does. SyncDub is real-time, in-browser, on live streams. If you need file-based dubbing, ElevenLabs Dubbing Studio or HeyGen are excellent choices. If you need real-time, we're one of very few options.
Comparison
- SyncDub AI — real-time, in-browser, $5.99 one-time pack of 100 minutes, 70+ languages.
- ElevenLabs Dubbing Studio — file-based, ~$5 per minute of source video, best voice quality available, 29 languages.
- Captions (captions.ai) — creator-focused, mobile-first, real-time, $9.99/mo starter, limited languages.
- HeyGen — file-based, avatar dubbing, $24/mo starter, focuses on corporate/training videos.
- Rask.ai — file-based, $60/mo for short videos, 130+ languages, no real-time mode.
- Heenok (free) — file-based, ad-supported, ~30 languages, decent for casual use.
- YouTube Auto-Dub — free, built into YouTube, English-only output for now, slow.
When to use which
- You want to watch foreign videos in real time → SyncDub.
- You need a high-quality dubbed version of a YouTube video to publish → ElevenLabs.
- You're a TikTok creator making short content → Captions.
- You're a corporate training team producing internal videos → HeyGen.
- You want the cheapest possible file dubbing → Heenok or YouTube Auto-Dub.
What we built and why
SyncDub is a browser extension because that's where video lives for most people. We're one-time-pay because subscriptions make language-learning prohibitively expensive. We support 70+ languages because the people who need real-time dubbing aren't English speakers — they're everyone else.