AI Subtitles
Generate subtitles from speech using AI. Choose from multiple engines optimized for speed, accuracy, or specific language groups. GPU-accelerated on server.
01:24
And that's how we built the entire system
1
00:01:22,400 → 00:01:25,100
And that's how we built the entire system
And that's how we built the entire system
Drop files here or click to browse
Max 10240.0 MB per file · drop multiple for batch
or press Ctrl+V to paste
Processed on our servers — requires a free account
Have feedback? Let us know
How to Use AI Subtitles
- Upload a video with speech
- Select the language (or leave on auto-detect)
- Pick an AI engine — Fast for speed, Highest Accuracy for any language, Asian Optimized for CJK languages
- Click Process and download your SRT subtitle file
Features
- 5 AI engines: Fast Lightning, Studio Quality, Highest Accuracy, Word-Timestamps, Asian Optimized
- Up to 99 languages with auto-detection
- Fast Lightning: transcribe 10 minutes of audio in under a second
- Word-level timestamps for karaoke-style subtitles
- Exports SRT subtitle files
- Free alternative to Submagic, Veed, and Kapwing for auto-captions
Frequently Asked Questions
- Which AI engine should I use?
- Fast mode is the best for English/European languages — over 3,000x real-time on our GPU. Studio Quality is a great default for any language. Highest Accuracy mode is for legal / medical / academic transcription where errors are costly. The Asian Optimized engine is best for Chinese, Japanese, Korean, and other CJK / Southeast Asian languages.
- What languages are supported?
- 99 total: full coverage of European, Asian, Slavic, Romance, Semitic, and most South Asian / African languages. Auto-detect picks the right engine and language for you.
- What are word-level timestamps?
- Precise timing for each individual word, useful for karaoke-style subtitles or precise caption sync. Other modes give sentence-level timing.
- How fast is the auto-subtitle generator?
- Fast mode processes at over 3,000x real-time — a 10-minute video takes less than a second of compute. Studio Quality and Highest Accuracy are slower but still typically finish in seconds for short clips.
- How is this different from Submagic, Veed, or Kapwing?
- Three things. (1) Free with no watermark for SRT extraction — Submagic ($16/mo) and Veed limit free features behind their paywall. (2) Five AI engines — pick fastest for English, most-accurate for any language, or specialized for Asian languages. Submagic / Veed use a single model. (3) Burn subtitles directly into the video AND extract a portable SRT file — no extra step.
- Is this a free alternative to Submagic?
- Yes for the auto-caption step. Submagic's value-add is the curated animated caption presets and emoji auto-suggest — if you need those polished social-media-ready captions, check our Animated Captions tool which mimics Submagic's style for free.