AI Subtitle Generator
Generate subtitles from local video and audio files with Whisper AI. SubSmith gives you editable timed subtitles without upload limits or cloud processing.
What It Does
This is the main hub for subtitle-generator intent. SubSmith transcribes MP4, MKV, AVI, MP3, and WAV files, then lets you review and export the result as SRT or plain text. If you already know your use case, jump to the more specific pages for offline subtitle generation, video files, audio files, or YouTube video workflows.
- Generate subtitles in 99+ languages
- Edit subtitles inline before export
- Export to SRT or plain text
- Use CPU or GPU acceleration
How It Works
- Drop your video or audio file into SubSmith
- Select the language and Whisper model size
- Generate timed subtitles
- Review and export the result
See the Workflow
These are the parts of the app that matter most for subtitle generation: importing media, reviewing subtitles, looking up words, and saving useful lines for later study.


Best For
- Language learners working with local media libraries
- Creators preparing subtitles before publishing
- Users who want an offline subtitle workflow
Why SubSmith
Many subtitle tools are optimized for short browser uploads. SubSmith is a better fit when your files are local, your videos are longer, or you want direct control over the subtitle export workflow. If you are comparing approaches, read subtitle generator vs auto captions. If you are deciding on output format, see SRT vs VTT. And if you want the model-level details, the Whisper AI transcription guide and Whisper subtitle accuracy breakdown cover that in more depth.
Built for Learning, Not Just Export
Most subtitle tools stop at transcription and export. SubSmith also supports popup dictionary lookup while you read through subtitles and lets you turn useful lines into flashcards for later review.
- Popup dictionary support for quick word lookups while reviewing subtitles
- Flashcard creation from subtitle lines for Anki-based study workflows
- Useful if you want subtitles and a language-learning workflow in the same app


Download SubSmith
Start a 7-day free trial and generate subtitles from your own media. Review them, look up words instantly, and save useful lines as flashcards.