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Subtitle Studio vs Whisper-WebUI: catalog facts
Subtitle Studio	Whisper-WebUI
Freemium Free to download; a one-time $69 lifetime license for one device unlocks full export.	Free Free and open source under the Apache 2.0 licence.
Windows, macOS	Windows, Linux, Web, Self-hosted
Transcription runs fully offline with no uploads Supports 98+ languages with translation and dual subtitles	Choice of three Whisper implementations Exports SRT, WebVTT and plain text
Full export requires the paid license License covers a single device	Speaker diarization needs a Hugging Face token and accepted model terms DeepL translation needs an external API key
Downloadable app	Self-hosted
Closed source	Open source
License not stated	License: Apache-2.0
Not stated if an account is needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.