SpeakSwap

SpeakSwap dubs video you already made into other languages, rather than generating anything from scratch. Upload a file, record from a mic, or paste a public link from YouTube, X, Instagram, or Facebook, and it detects the spoken language, translates the script, clones the speaker’s voice, and mixes the new audio back over the original background. Smart lip sync is optional, and you confirm which voice belongs to which face before rendering, which matters on multi-speaker footage.

The translation layer is the part they’ve clearly thought hardest about. Rather than a literal word swap, it adapts phrasing to fit the target language’s rhythm and maps domain terms properly, so a programming tutorial keeps standard terminology instead of literal classroom wording, and timing is tightened to stay in step with the original cuts.

What’s refreshing is the honesty around output. The sample dubs on the site are stated to be uncherry-picked so you can judge timing and delivery before paying, and the product is upfront that voice availability and quality vary by language and source audio. A free signup includes a 20-second sample, one-time credit packs start at $6, and monthly plans run $10 to $99, with one balance shared across all six SpeakSwap tools.