Trusted by 10,000+ creatorsSRT subtitle generator
No account required. Start in seconds.
Get a clean SRT file from any video
AutoSubtitles generates SRT, VTT, and TXT subtitle files from any video. It transcribes the audio with AI, lets you edit the text and timestamps, and exports a correctly formatted .srt or .vtt file you can use anywhere.
Why creators choose AutoSubtitles
Total control over every caption
Customize every detail: fonts (upload your own with Pro), colors, outline, shadow, background, casing, spacing, alignment, position, and animation. Or start from 28 presets.
Renders in your browser, fast
No waiting to upload your video to a server and no render queue. It stays on your device and captions render right in your browser, so you get your captioned video in seconds.
Viral animated captions
Word-by-word animations and karaoke highlighting in bold, readable styles built for TikTok, Reels, and Shorts.
Export however you need
Download a captioned video with burned-in subtitles on any plan. With Pro, also export SRT, VTT, and TXT files to use anywhere.
Translate into 30+ languages
Translate your captions into 30+ languages with AI while keeping the timing intact.
Free to use, private
Use it free; a paid plan unlocks more. Your video file never leaves your device; only the audio is sent for transcription, then deleted.
Features
Standards-compliant files
SRT uses HH:MM:SS,mmm timing and VTT uses the WebVTT format, ready for any player.
AI transcription
Generate timestamped subtitles automatically instead of typing them out.
Precise timing control
Tune start and end times per line so every cue lands exactly right.
100+ languages
Transcribe speech in 100+ languages with automatic language detection.
Made for YouTube creators, educators, and podcasters.
YouTube creators
Upload an SRT alongside your video so viewers can toggle captions.
Educators
Provide subtitle files for lectures to meet accessibility requirements.
Podcasters
Generate transcripts and subtitle files from recorded episodes.
How it works
- Step 1
Upload your video
Drop in an MP4, MOV, or WebM file.
- Step 2
Auto-transcribe
AI generates timestamped subtitles from the audio.
- Step 3
Edit timestamps
Correct wording and adjust start and end times line by line.
- Step 4
Download .srt
Export a correctly formatted SRT, VTT, or TXT file.
Free vs Pro
Start free, upgrade only if you need more.
| Capability | Free | Pro |
|---|---|---|
| SRT, VTT and TXT download | No | Yes |
| AI subtitle generation | Yes | Yes |
| Editable text and timing | Yes | Yes |
| Export captioned video | Yes | Yes |
| Animations and word highlights | Yes | Yes |
| No watermark | No | Yes |
| HD and 4K export | No | Yes |
| AI translation | No | Yes |
| Custom fonts | No | Yes |
| Saved style presets | No | Yes |
No account required. Start in seconds.
Frequently asked questions
- How do I generate an SRT file from a video?
Upload your video to AutoSubtitles, let the AI transcribe the audio into timestamped subtitles, edit the text and timing, then download a formatted .srt file.
- What is the difference between SRT, VTT, and TXT?
SRT (SubRip) uses comma-separated millisecond timestamps and is widely supported. VTT (WebVTT) uses period-separated timestamps with a header and is designed for the web. TXT is a plain transcript with no timestamps. AutoSubtitles can export all three.
- Can I edit the timestamps?
Yes. You can adjust the start and end time of each line, and even fine-tune word-level timing, before exporting.
- Is the SRT generator free?
Generating and editing subtitles is free. Downloading subtitle files such as SRT and VTT is part of the Pro plan.
- Will the SRT work on YouTube and other players?
Yes. The exported files follow the standard SRT and VTT formats, so they work with YouTube, video players, and editing software.
- Can I convert an SRT file I already have to VTT or plain text?
Yes, for free. Our subtitle converter turns SRT into VTT, VTT into SRT, and either into a plain-text transcript. It runs in your browser with no signup, and the file never leaves your device.
- Can I edit an SRT file I already have?
Yes, for free. Open it in our online subtitle editor to fix words and timings next to your video, or use the subtitle shifter if every line is out of sync by the same amount. Both run in your browser, and your files never leave your device.