Cookie preferences
We use cookies for analytics. Privacy Policy You can accept or decline non-essential tracking.
AI-Powered
Upload your video and generate SRT subtitle files with accurate timestamps. AI speech recognition supports 15+ languages.
Status
Waiting
Output
—
Drag and drop your video file here, or click to browse. Supported formats: MP4, MOV, WebM, MKV.
Maximum 100 MB · Up to 5 minutes
Upload your video and auto-generate SRT subtitle files with precise timestamps. AI-powered speech recognition supports 15+ languages. Privacy-first, no signup, free for commercial use.
An SRT subtitle generator is an online tool that automatically creates subtitle files from video content. It uses AI speech recognition to detect spoken words, split them into timestamped segments, and produce a standard .SRT (SubRip Text) file that works in all major video editors and platforms including CapCut, Premiere Pro, DaVinci Resolve, YouTube, TikTok, and Instagram.
Upload your video file (MP4, MOV, WebM, or MKV). Our AI extracts the audio track, processes it through advanced speech recognition powered by Whisper, and generates precisely-timed subtitle segments. The result is a downloadable .SRT file with accurate timestamps and clean text formatting. The entire process takes just seconds for short-form videos.
We support all popular video formats: MP4, MOV (iPhone/iPad video), WebM (screen recordings), and MKV. Maximum file size is 100 MB with a 5-minute duration limit, optimized for Reels, TikTok, YouTube Shorts, and other short-form content. The generated .SRT file can be downloaded or copied directly.
Our subtitle generator supports 15+ languages with automatic language detection. Whether your video is in English, Spanish, French, German, Portuguese, Italian, Russian, Ukrainian, Turkish, Japanese, Korean, Chinese, Arabic, or Hindi — the AI will accurately transcribe speech and generate subtitles in the original language.
Yes, our auto subtitle generator is completely free. No sign-up, no watermarks, no limits on the number of videos you can process.
We support MP4, MOV, WebM, and MKV video files up to 100 MB and 5 minutes in duration. This covers most short-form video content for social media.
Our AI uses the Whisper speech recognition model, which achieves near-human accuracy for clear audio. For best results, use videos with clear speech and minimal background noise.
Yes! Download the .SRT file and open it in any text editor or subtitle editing tool to make corrections. You can also import it into video editors like CapCut or Premiere Pro for visual editing.
Absolutely. The generated SRT files are compatible with all major platforms. Simply upload the .SRT file alongside your video on TikTok, Instagram, or YouTube.
For short videos (under 2 minutes), subtitles are typically generated in 10-30 seconds. Longer videos may take up to a minute depending on audio complexity.
Explore the most common scenarios for Auto Subtitle Generator below. Each page is a focused calculator with worked examples and edge-case guidance.
Generate subtitles for any video automatically. Create SRT, VTT, or ASS captions from video files with AI speech recognition for YouTube, TikTok, and more.
Generate SubtitlesGenerate YouTube captions and subtitles automatically. Create SRT files for YouTube accessibility, reach more viewers, and improve video SEO.
Generate YouTube CaptionsGenerate and download SRT subtitle files online free. Create perfectly synced SRT captions from any video or audio file with timestamp export.
Generate SRT FileTranslate subtitle files to any language online. Convert SRT subtitles from English to Spanish, French, German, and 50+ languages while preserving timestamps.
Translate SubtitlesVoice to Text
Transcribe audio recordings into clean text using AI speech recognition. Upload lectures, meetings, or voice memos.
Waveform Generator
Generate queued waveform PNG, SVG, and JSON outputs from heavy audio files with Railway-backed processing.
WEBM/MKV to MP4
Queue-backed converter for WEBM and MKV files when you need a compatible MP4 output.