--- title: "SmartSub vs stt" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/buxuku-smartsub-vs-jianchang512-stt" tools: ["buxuku-smartsub", "jianchang512-stt"] --- # SmartSub vs stt *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 stt if stt is a Python-based local offline speech-to-text tool that uses fast-whipser for converting audio from video and audio files into text, including JSON, SRT subtitles, or plain text formats. [SmartSub](https://smartsub.linxiaodong.com/) reports 5.3k GitHub stars, 400 forks, and 50 open issues, last pushed Sep 16, 2026. [stt](https://pyvideotrans.com) has 4.8k stars, 503 forks, and 100 open issues, last pushed Jan 22, 2026. Figures are from public GitHub metadata via [SmartSub's repository](https://github.com/buxuku/SmartSub) and [stt's repository](https://github.com/jianchang512/stt). | | [SmartSub](/tools/buxuku-smartsub.md) | [stt](/tools/jianchang512-stt.md) | | --- | --- | --- | | Tagline | A desktop subtitle tool supporting ASR and translation | A local offline speech-to-text tool for video and audio files. | | Stars | 5,253 | 4,795 | | Forks | 400 | 503 | | Open issues | 50 | 100 | | Language | TypeScript | Python | | 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. | stt is a Python-based local offline speech-to-text tool that uses fast-whipser for converting audio from video and audio files into text, including JSON, SRT subtitles, or plain text formats. | | Persona | - | - | | Runtime | - | - | | License | MIT | GPL-3.0 | | Categories | Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [SmartSub](/tools/buxuku-smartsub.md) | [stt](/tools/jianchang512-stt.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Slowing (36%) | | Days since push | 3d | 240d | | Open issues (now) | 50 | 100 | | Stars delta | +629 (30d) | +83 (30d) | | Open issues delta | +7 (30d) | 0 (30d) | | Full report | [trust report](/tools/buxuku-smartsub/trust.md) | [trust report](/tools/jianchang512-stt/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: stt - **Adopt for:** stt is a Python-based local offline speech-to-text tool that uses fast-whipser for converting audio from video and audio files into text, including JSON, SRT subtitles, or plain text formats. ## Choose when ### Choose SmartSub if… - SmartSub is primarily TypeScript; stt is Python. - License: SmartSub is MIT, stt is GPL-3.0. - Tags unique to SmartSub: asr, gpu acceleration, subtitle, transcription. - Need multi-engine ASR support including both local and online services ### Choose stt if… - stt is primarily Python; SmartSub is TypeScript. - License: stt is GPL-3.0, SmartSub is MIT. - Tags unique to stt: audio-processing, fast-whisper, local-processing, offline. - Use stt if you require an offline, locally-run solution where internet dependence is not acceptable. ## 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 stt - Avoid using stt if your application relies on continuous updates and service improvements that are only available via web services. - Do not use stt in environments where CUDA acceleration cannot be supported, as it will limit processing speed without the GPU acceleration advantage. ## Common questions ### What is the difference between SmartSub and stt? SmartSub: A desktop subtitle tool supporting ASR and translation. stt: A local offline speech-to-text tool for video and audio files.. See the comparison table for live GitHub stats and shared categories. ### When should I choose SmartSub over stt? Choose SmartSub over stt when SmartSub is primarily TypeScript; stt is Python; License: SmartSub is MIT, stt is GPL-3.0; Tags unique to SmartSub: asr, gpu acceleration, subtitle, transcription; Need multi-engine ASR support including both local and online services. ### When should I choose stt over SmartSub? Choose stt over SmartSub when stt is primarily Python; SmartSub is TypeScript; License: stt is GPL-3.0, SmartSub is MIT; Tags unique to stt: audio-processing, fast-whisper, local-processing, offline; Use stt if you require an offline, locally-run solution where internet dependence is not acceptable. ### 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 stt? Avoid using stt if your application relies on continuous updates and service improvements that are only available via web services. Do not use stt in environments where CUDA acceleration cannot be supported, as it will limit processing speed without the GPU acceleration advantage. ### Is SmartSub or stt more popular on GitHub? SmartSub has more GitHub stars (5,253 vs 4,795). Stars measure visibility, not whether either tool fits your constraints. ### Are SmartSub and stt open source? Yes - both are open-source projects on GitHub (SmartSub: MIT, stt: GPL-3.0). ### Where can I find alternatives to SmartSub or stt? GraphCanon lists graph-backed alternatives at [SmartSub alternatives](/tools/buxuku-smartsub/alternatives) and [stt alternatives](/tools/jianchang512-stt/alternatives) ([SmartSub markdown twin](/tools/buxuku-smartsub/alternatives.md), [stt markdown twin](/tools/jianchang512-stt/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-jianchang512-stt.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, SmartSub or stt? SmartSub: Very active. stt: Slowing. 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 stt? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [SmartSub trust report](/tools/buxuku-smartsub/trust); [stt trust report](/tools/jianchang512-stt/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/_