DubTab: DubTab is a Chrome and Edge browser extension that delivers real-time translated subtitles and optional AI voice dubbing for audio playing in any browser tab, including livestreams and online meetings. OpenTranscribe: Self-hosted, containerized web app for transcribing and analyzing audio/video with WhisperX, speaker diarization, search, and collaboration. The right pick comes down to team size, budget, and the workflows you want to automate.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist DubTab when following zoom, google meet or teams meetings in another language with live captions and dubbing matters most, and OpenTranscribe when collaborative review of transcripts with time-stamped annotations matters most. Run both through a week of actual calls to see which suits your workflow.
DubTab is a Chrome and Edge browser extension that delivers real-time translated subtitles and optional AI voice dubbing for audio playing in any browser tab, including livestreams and online meetings.
Self-hosted, containerized web app for transcribing and analyzing audio/video with WhisperX, speaker diarization, search, and collaboration.
DubTab is a browser extension for Chrome and Edge that translates spoken audio in real time as it plays in a browser tab. Rather than requiring file uploads or exports, it listens to the audio of whatever tab is playing and produces live translated subtitles on screen, optional bilingual (original plus translation) captions, and low-latency AI voice dubbing that speaks the translation aloud. The vendor states audio stays in the tab and only text segments are processed, and that translations appear with roughly half-a-second latency suitable for live content. It supports 50+ languages and offers voice selection and volume-ducking controls. Because it works on any site with audio, supported contexts include YouTube, Twitch, Netflix, Udemy, Coursera and Bilibili, as well as meeting and conferencing tools such as Zoom, Google Meet and Microsoft Teams, where it can show what participants are saying in real time. It is aimed at online learners, livestream and international-content viewers, and remote meeting participants who need on-the-fly interpretation and captioning.
Best suited for
OpenTranscribe is a self-hosted, containerized web application for transcribing and analyzing audio and video files using current AI models. It is built with a FastAPI backend, a Svelte/TypeScript progressive web app frontend, and a Docker-based stack that includes PostgreSQL, Redis/Celery task queues, MinIO object storage, and OpenSearch for full-text indexing. Transcription is handled by WhisperX with the large-v3-turbo model and Faster-Whisper, supporting more than 100 languages, while automatic speaker diarization uses PyAnnote v4 with overlap detection. The project is licensed under AGPL-3.0 and is actively maintained, with v0.4.1 released in April 2026. Beyond transcription, OpenTranscribe provides AI-powered summarization (including BLUF-format and custom JSON schemas), topic extraction, and content analysis through multiple LLM providers such as OpenAI, Claude, vLLM, Ollama, and OpenRouter. Collaboration features include time-stamped comments and annotations, and the platform can automatically import media from local folders, S3, and SMB shares. It also supports a set of cloud ASR providers as alternatives to local transcription, giving teams flexibility between fully local processing and managed services while keeping the application running on their own infrastructure. Pricing varies by plan. Check the official website for current pricing.
Best suited for
DubTab is a free tier with paid upgrades (freemium); OpenTranscribe is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | DubTab | OpenTranscribe |
|---|---|---|
| Core capability | Real-time translated subtitles overlaid on any audio-playing browser tab | WhisperX transcription with large-v3-turbo and 100+ language support |
| Standout feature | Low-latency AI voice dubbing that speaks the translation aloud | Automatic speaker diarization via PyAnnote v4 with overlap detection |
| Team usage | Optional bilingual captions showing original and translation simultaneously | Full-text search and filtering powered by OpenSearch |
| Integrations | Support for 50+ languages with selectable AI voices | AI summarization, topic extraction, and content analysis via multiple LLM providers |
| Languages & capture | Works across video, streaming and meeting platforms (YouTube, Twitch, Zoom, Google Meet, Teams, Udemy, Coursera) | Time-stamped comments for collaboration and annotation |
| Best-fit workflow | In-tab audio processing with no file uploads required | Auto-import from local folders, S3, and SMB shares |
DubTab
Choose DubTab if you need following zoom, google meet or teams meetings in another language with live captions and dubbing — strengths include real-time, low-latency translation works live across meetings, courses and streams without pausing.
OpenTranscribe
Choose OpenTranscribe if you need teams self-hosting a searchable archive of transcribed meeting and media recordings — strengths include fully self-hosted web app with a complete transcription-and-analysis stack.
DubTab
OpenTranscribe
It depends on your workflow. DubTab is strong for following zoom, google meet or teams meetings in another language with live captions and dubbing, while OpenTranscribe is strong for teams self-hosting a searchable archive of transcribed meeting and media recordings. Both transcribe and summarize meetings.
DubTab is a free tier with paid upgrades and OpenTranscribe is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
Yes. Many teams run more than one meeting assistant when the workflows are complementary.
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