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

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