--- title: "SmartSub vs obs-localvocal" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/buxuku-smartsub-vs-royshil-obs-localvocal" tools: ["buxuku-smartsub", "royshil-obs-localvocal"] --- # SmartSub vs obs-localvocal *GraphCanon updated Sep 20, 2026* ## Verdict Pick SmartSub if smartSub is a desktop application for subtitling tasks like transcription, translation, proofreading, and subtitle burn-in with local-first processing and GPU acceleration; pick obs-localvocal if obs-localvocal is an OBS plugin enabling real-time speech-to-text transcription and translation using AI models that run locally. [SmartSub](https://smartsub.linxiaodong.com/) reports 5.3k GitHub stars, 400 forks, and 50 open issues, last pushed Sep 16, 2026. [obs-localvocal](https://obsproject.com/forum/resources/localvocal-live-stream-ai-assistant.1769/) has 1.6k stars, 121 forks, and 59 open issues, last pushed Sep 9, 2026. Figures are from public GitHub metadata via [SmartSub's repository](https://github.com/buxuku/SmartSub) and [obs-localvocal's repository](https://github.com/royshil/obs-localvocal). | | [SmartSub](/tools/buxuku-smartsub.md) | [obs-localvocal](/tools/royshil-obs-localvocal.md) | | --- | --- | --- | | Tagline | A desktop subtitle tool supporting ASR and translation | An OBS plugin for local speech recognition and captioning | | Stars | 5,253 | 1,615 | | Forks | 400 | 121 | | Open issues | 50 | 59 | | Language | TypeScript | C++ | | Adopt for | SmartSub is a desktop application for subtitling tasks like transcription, translation, proofreading, and subtitle burn-in with local-first processing and GPU acceleration. | Obs-localvocal is an OBS plugin enabling real-time speech-to-text transcription and translation using AI models that run locally. | | Persona | - | - | | Runtime | - | - | | License | MIT | GPL-2.0 | | Categories | Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [SmartSub](/tools/buxuku-smartsub.md) | [obs-localvocal](/tools/royshil-obs-localvocal.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Active (82%) | | Days since push | 3d | 10d | | Open issues (now) | 50 | 59 | | Stars delta | +629 (30d) | +54 (30d) | | Open issues delta | +7 (30d) | +4 (30d) | | Full report | [trust report](/tools/buxuku-smartsub/trust.md) | [trust report](/tools/royshil-obs-localvocal/trust.md) | ## Decision facts: SmartSub - **Adopt for:** SmartSub is a desktop application for subtitling tasks like transcription, translation, proofreading, and subtitle burn-in with local-first processing and GPU acceleration. ## Decision facts: obs-localvocal - **Requirements:** The software operates on Windows, Linux (Ubuntu 22.04), and MacOS environments.; Support for translation is included using CTranslate2. - **Adopt for:** Obs-localvocal is an OBS plugin enabling real-time speech-to-text transcription and translation using AI models that run locally. - **License detail:** GPL-2.0 ## Choose when ### Choose SmartSub if… - SmartSub is primarily TypeScript; obs-localvocal is C++. - License: SmartSub is MIT, obs-localvocal is GPL-2.0. - Tags unique to SmartSub: asr, gpu acceleration, subtitle, translation. - Need multi-engine ASR support including both local and online services ### Choose obs-localvocal if… - obs-localvocal is primarily C++; SmartSub is TypeScript. - License: obs-localvocal is GPL-2.0, SmartSub is MIT. - Requirements: The software operates on Windows, Linux (Ubuntu 22.04), and MacOS environments.; Support for translation is included using CTranslate2.. - Tags unique to obs-localvocal: ai, live-streaming, obs-plugin, speech-to-text. - When you require privacy-first solutions where all processing of audio and data occurs on the local machine without any cloud-based services. ## When NOT to use SmartSub - Looking for mobile app capabilities instead of desktop application support - Do not need the complexity of multiple engines or advanced GPU acceleration configurations ## When NOT to use obs-localvocal - If your workflow demands GPU acceleration for better performance, given obs-localvocal focuses primarily on CPU but offers limited GPU support. - In scenarios where you need to integrate directly with cloud-hosted services or APIs, since this plugin processes everything locally without internet dependency. ## Common questions ### What is the difference between SmartSub and obs-localvocal? SmartSub: A desktop subtitle tool supporting ASR and translation. obs-localvocal: An OBS plugin for local speech recognition and captioning. See the comparison table for live GitHub stats and shared categories. ### When should I choose SmartSub over obs-localvocal? Choose SmartSub over obs-localvocal when SmartSub is primarily TypeScript; obs-localvocal is C++; License: SmartSub is MIT, obs-localvocal is GPL-2.0; Tags unique to SmartSub: asr, gpu acceleration, subtitle, translation; Need multi-engine ASR support including both local and online services. ### When should I choose obs-localvocal over SmartSub? Choose obs-localvocal over SmartSub when obs-localvocal is primarily C++; SmartSub is TypeScript; License: obs-localvocal is GPL-2.0, SmartSub is MIT; Requirements: The software operates on Windows, Linux (Ubuntu 22.04), and MacOS environments.; Support for translation is included using CTranslate2.; Tags unique to obs-localvocal: ai, live-streaming, obs-plugin, speech-to-text; When you require privacy-first solutions where all processing of audio and data occurs on the local machine without any cloud-based services. ### When should I avoid SmartSub? Looking for mobile app capabilities instead of desktop application support Do not need the complexity of multiple engines or advanced GPU acceleration configurations ### When should I avoid obs-localvocal? If your workflow demands GPU acceleration for better performance, given obs-localvocal focuses primarily on CPU but offers limited GPU support. In scenarios where you need to integrate directly with cloud-hosted services or APIs, since this plugin processes everything locally without internet dependency. ### Is SmartSub or obs-localvocal more popular on GitHub? SmartSub has more GitHub stars (5,253 vs 1,615). Stars measure visibility, not whether either tool fits your constraints. ### Are SmartSub and obs-localvocal open source? Yes - both are open-source projects on GitHub (SmartSub: MIT, obs-localvocal: GPL-2.0). ### Where can I find alternatives to SmartSub or obs-localvocal? GraphCanon lists graph-backed alternatives at [SmartSub alternatives](/tools/buxuku-smartsub/alternatives) and [obs-localvocal alternatives](/tools/royshil-obs-localvocal/alternatives) ([SmartSub markdown twin](/tools/buxuku-smartsub/alternatives.md), [obs-localvocal markdown twin](/tools/royshil-obs-localvocal/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/buxuku-smartsub-vs-royshil-obs-localvocal.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, SmartSub or obs-localvocal? SmartSub: Very active. obs-localvocal: Active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for SmartSub and obs-localvocal? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [SmartSub trust report](/tools/buxuku-smartsub/trust); [obs-localvocal trust report](/tools/royshil-obs-localvocal/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=buxuku-smartsub`](/api/graphcanon/graph?tool=buxuku-smartsub) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_