Subtitle & Localization Translator

Source language Used by the Fast engine, and as a hint for media transcription. Defaults to English. The Quality engine detects the source language automatically for text/subtitle input regardless of this setting.

Engine

Quality — in-browser LLM (best for dialogue/context) Fast — dedicated translation model (smaller, quicker)

Model

Force CPU (skip WebGPU) for Fast engine & transcription Slower, but works around an intermittent WebGPU crash ("…already deleted"/"device lost") some GPUs — AMD GPUs in particular — can hit on a big job or a multi-language run. Only affects the Fast engine and media transcription; the Quality engine always needs WebGPU regardless of this setting.

Output formats

Subtitle & Localization Translator

Target languages

Resume a previous session

Translation options

Progress

Review & edit

Export