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Upload media
Upload your video or audio
Drag and drop your video or podcast in almost any format (MP4, MOV, MKV, MP3, WAV, …) into the tool. The language can be detected automatically or set manually.
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AUTO SUBTITLE GENERATOR
Auto Subtitle Generator – AI subtitles in minutes
Upload your video or audio, let our Whisper-based AI generate subtitles automatically, refine timing and styling, and export ready-to-use SRT, ASS, or MP4 files with burned-in subtitles.
- AI subtitles with clean, frame-accurate timing
- Multilingual support and translation
- Timeline editor with styling and speaker labels
✅ Powered by Whisper-based AI
🔒 Encrypted upload and processing
🎬 Perfect for YouTube, Shorts and Reels
How the Auto Subtitle Generator works
Subvideo.ai turns your media into ready-to-use subtitles in three simple steps. No installation, no complex setup – just upload, let AI do the work and edit directly in your browser.
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AI subtitles
Automatic subtitles with Whisper-level AI
Our Auto Subtitle Generator uses Whisper-level models to transcribe speech with high accuracy – even with accents and light background noise. Speaker detection and translation are available as options.
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Edit and export
Adjust timing and style, then export
Use the timeline view to refine line breaks, timing and styles. Then export as SRT, ASS or VTT – or render a finished MP4 with burned-in subtitles for YouTube, TikTok and more.
Perfect for creators, teams and education
Subvideo.ai is more than a simple subtitle generator – it is a complete AI-powered subtitle studio, from first draft to final export.
Multilingual support
Create subtitles for more than 90 languages with a single click. Translate your subtitles for a global audience while keeping timing perfectly in sync.
Speaker management
Enable speaker detection on upload to automatically separate speakers. Assign custom styles to each speaker for clearer, more professional subtitles.
Timeline and styling
Edit subtitles visually on a timeline – adjust in and out points, split or merge lines and change fonts, colours, positions and effects directly in the browser.
Many export formats
Export SRT, ASS, VTT, DOCX, TXT, JSON, CSV, XLIFF and more – or create a video with hard-subs, optimised for YouTube, Shorts, Reels and common editing tools.
EU hosting and privacy
All guest uploads are processed on EU servers, encrypted in transit and deleted automatically after 48 hours – ideal for GDPR-sensitive projects.
Ready for AI voiceover
Use your subtitles as the basis for AI voiceover and dubbing. Edit the text once, then generate voices in multiple languages – all in the same studio.
Try the Auto Subtitle Generator now
Start in guest mode, upload your first file and see AI subtitles in action. As soon as processing is finished, the full editor opens automatically.
Hosted in the EU – GDPR-compliant 
Secure 256-bit encryption 
No account needed to get started What happens after upload?
The AI converts your audio to text, creates subtitles with optional speaker detection and opens the studio so you can edit, translate, add voiceover and export right away.
Auto Subtitle Generator – FAQ
A few quick answers about accuracy, privacy and how AI subtitles behave in real projects.
How accurate are the subtitles?
Our Auto Subtitle Generator is based on Whisper-level models and is especially strong in English, German and other major languages. Clean audio delivers the best results; you can always fine-tune wording, timing and line breaks in the editor.
Are my files stored permanently?
Guest uploads are processed on EU servers and deleted automatically after 48 hours. With an account you can store projects and subtitles securely for later editing.
Do I need an account to use the tool?
No. You can try the Auto Subtitle Generator in guest mode without logging in. For regular use and unlimited project storage we recommend a free account.
Can I burn subtitles into the video?
Yes. After editing you can export standard formats like SRT or ASS, or render a new MP4 with burned-in subtitles that is ready for YouTube, Shorts and Reels.
Does the tool support multiple speakers and translations?
You can enable AI speaker detection on upload and assign individual styles to each speaker. With one click you can also translate subtitles into many languages – ideal for international audiences.
Create AI subtitles smarter – not harder
Turn your video or audio into clean, styled subtitles in just a few minutes. Upload once, let the AI do the heavy lifting and then fine-tune the details in the studio for real-world workflows.
Upload a file and generate subtitles