AI Video Captions - Auto Generate Subtitles
Add professional captions to any video with AI. Cloud AI for fast results, or install Local AI for offline privacy. Customizable fonts and colors. Karaoke-style word highlighting available on Plus.
Add Captions to Your Videos
Save $100+/month vs cloud caption services
AI will transcribe your video and generate captions automatically. Customize fonts, colors, and position. Export as burned-in captions or separate SRT/VTT files.
Note: Cloud AI uses your tokens for fast processing. Install Local AI for offline, private caption generation.
Powerful Caption Features
AI-Powered Accuracy
Automatic speech recognition with 95%+ accuracy. Supports multiple languages and handles accents well.
Karaoke-Style Captions (Plus)
Word-by-word highlighting like TikTok and Reels. The trending format that keeps viewers watching. Available with Plus subscription.
Privacy Options
Choose Cloud AI for speed, or install Local AI for complete privacy. With Local AI, videos never leave your device.
Generous Free Tier
No per-minute charges like cloud services. Standard captions free, no watermarks. Karaoke-style and multi-language on Plus.
Why Diwadi Beats Online Caption Tools
| Feature | Online Tools | Diwadi Desktop |
|---|---|---|
| Upload Required | ❌ Required | 🎯 Never |
| File Size Limit | ❌ 50MB max | ♾️ Unlimited |
| Speed | ⏳ Slow (upload/download) | ⚡ Instant |
| Batch Processing | ❌ 1 file | ✅ 1000s |
| Privacy | ⚠️ Risky (cloud upload) | 🔒 100% Local |
| AI Features | ❌ No | 🤖 Yes |
| Offline | ❌ No | ✅ Yes |
| Cost | Free | Free ✅ |
How It Works
Download & Install
Takes just 30 seconds. No account, no credit card required.
Browse & Select Your Videos
Navigate your files like a regular file browser. Batch processing supported.
Get Captioned videos (Instant)
Processing happens locally on your computer. No upload wait.
Perfect For
Content Creators
Create engaging TikTok, YouTube, and Instagram Reels with professional captions. Karaoke-style word highlighting available on Plus for maximum retention.
Educators
Make course videos accessible with accurate captions. Use Local AI for FERPA-friendly processing where nothing leaves your device.
Businesses
Caption training videos and marketing content. Use Local AI for confidential content that must stay secure.
Why Choose Diwadi Desktop?
Privacy First
Files never leave your computer. No cloud upload, no data collection, 100% local.
Lightning Fast
Process files 10x faster than online tools. No upload wait, no download wait.
No Limits
Convert unlimited files of any size. Batch process thousands in one click.
AI-Powered
Smart formatting detection, auto-cleanup, better accuracy.
Works Offline
No internet required. Perfect for flights, secure environments.
Free to Use
No trial limits, no watermarks, no credit card required.
Frequently Asked Questions
Is Diwadi's caption feature free?
Free tier includes 500 Cloud AI tokens/month for captions. You can also install Local AI for unlimited free English captions. Plus unlocks karaoke-style highlighting and 50+ languages for Local AI.
How accurate are the AI captions?
Our AI achieves 95%+ accuracy for clear speech in supported languages. You can easily edit any mistakes before exporting. Accuracy may vary with heavy accents, background noise, or multiple overlapping speakers.
What is karaoke-style captioning?
Karaoke-style captions highlight each word as it's spoken, creating a dynamic effect popular on TikTok and Reels. This premium feature (Plus subscription) increases viewer retention and engagement compared to static captions.
Do I need internet to use captions?
Cloud AI (default) requires internet and uses your tokens. For offline use, install Local AI models once - then caption videos without internet. Local AI is English-only on free tier, all languages on Plus.
What video formats are supported?
Diwadi supports all common video formats including MP4, MOV, AVI, MKV, WebM, and 400+ others. Simply drag your video in and start generating captions.
Can I customize the caption appearance?
Yes, full customization including font style, size, color, background, position, and animation. Match your brand or create eye-catching styles for social media.
What's the difference between burn-in and SRT export?
Burn-in permanently embeds captions in the video - perfect for social media where platforms may not support subtitle files. SRT/VTT creates separate subtitle files you can upload to YouTube, Vimeo, or use in video editors.
Is my video data private?
With Local AI, 100% private - videos never leave your computer. Cloud AI sends audio to AI providers (OpenAI/Google) for processing. Choose Local AI for sensitive content, Cloud AI for speed.
How long does caption generation take?
Typically faster than real-time on modern computers. A 5-minute video usually takes 2-3 minutes to process. Exact speed depends on your hardware and the AI model size you choose.
What languages are supported?
Free tier supports English transcription. Plus subscribers get access to 50+ languages including Spanish, French, German, Japanese, Chinese, Korean, Arabic, Hindi, and many more with auto-detection.
You might also need:
Learn More
Understand video formats, compression, and how Diwadi compares to alternatives