Free Online AI Auto Subtitle Generator (Whisper & CapCut Style Captions)
Automatically transcribe and generate word-accurate video subtitles using AI Whisper. Style your captions with viral CapCut, TikTok, and Reels word-by-word highlight presets right in your browser.
Export standard SRT/VTT subtitle files or burn stylized animations directly into your MP4 video with zero watermark.
Key Features of SpaiApps AI Subtitle Studio
- High-accuracy multilingual speech-to-text powered by AI Whisper.
- Interactive real-time caption editor with viral CapCut & Karaoke word highlight templates.
- Instant SRT/VTT export and client-side MP4 hardsub rendering without watermarks.
How to Auto-Generate Video Subtitles Online
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Step 1: Upload your video or audio file into the subtitle studio.
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Step 2: Select the spoken language and click "Generate AI Subtitles".
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Step 3: Customize typography or animation presets, then export SRT or render MP4.
Frequently Asked Questions (FAQ)
Does the exported MP4 video have any watermark?
No. All videos and SRT files exported from SpaiApps are 100% watermark-free.