OpenSpeaks Subtitler

At a glance

• Editor score
  6.5 / 10
• Pricing
  Free plan
• Best for
  Wikimedia contributors editing subtitles for free
• Free plan
  Yes
• Paid from
  Free
• Facts checked
  23 Sep 2026

• Where it wins

  • Edit local audio and video offline, or load media from Wikimedia Commons
  • Create draft subtitle chunks with silence detection and adjust timing on a timeline
  • Translate subtitles, export SRT or VTT, and upload to Wikimedia Commons

• Where it doesn't

  • The workflow is specifically oriented around Wikimedia Commons
  • Silence detection creates draft chunks; speech recognition is not available
  • Commons search, loading, and upload require an internet connection

Our verdict on OpenSpeaks Subtitler

OpenSpeaks Subtitler is a free, open-source browser-based tool for creating and editing subtitles, with particular relevance to Wikimedia contributors, language documenters, and archivists. It supports both local audio or video and media from Wikimedia Commons. Local files can be edited offline, while Commons features require an internet connection. Its focus is subtitle production for oral history and language documentation rather than a broad, general-purpose media workflow.

The editing process combines draft generation with manual control. Silence detection can divide media into draft subtitle chunks; users can then edit the text and timing using timeline and video overlay controls. Subtitles can also be translated using machine translation, exported as SRT or VTT, and uploaded to Wikimedia Commons. These features make it a practical fit when the destination is Commons or when contributors need standard subtitle files. Silence detection is not speech recognition, however, so it does not provide automatic transcription of spoken words.

Its free, open-source model suits solo contributors and small projects that want local-media editing without a paid plan, particularly when Commons is part of the workflow. The trade-off is that the product is closely aligned with Wikimedia: teams seeking a tool centered on other platforms or automated speech transcription should consider alternatives. Choose OpenSpeaks Subtitler for subtitle timing, translation, and Commons publishing; look elsewhere if transcription automation or a wider platform focus is essential.

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OpenSpeaks Subtitler pricing

OpenSpeaks Subtitler fact sheet

OpenSpeaks Subtitler integrations

OpenSpeaks Subtitler lists 1 integrations on its own site.

• Wikimedia Commons

Alternatives to OpenSpeaks Subtitler

• SESubtitle EditA broad, free subtitle toolkit for local editing, transcription, translation, and video processing.9.4
• SRTGenA broad subtitle toolkit for creators who need transcription, localization, and exports.9.2
• EditsubEditsub combines broad subtitle tools, collaboration, and a low-cost annual Pro plan.9.0

See all OpenSpeaks Subtitler alternatives →

Featured on iTechGuides

OpenSpeaks Subtitler is listed in our Subtitle Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update