The best subtitle generators turn video audio into accurate, time-synced SRT or VTT captions in minutes. PlainScribe is the top pay-as-you-go pick at $0.067/min ($4/hour), exporting both SRT and VTT with up to 99% accuracy across 47 languages. Kapwing and Zubtitle lead for styled social captions; Happy Scribe for heavy translation.
A subtitle generator runs your video's audio through automatic speech recognition, then splits the text into timed cues and writes them to a caption file. The two formats you'll meet most: SRT (SubRip) is plain, numbered, and universally supported; VTT (WebVTT) is web-native and supports styling. Most platforms accept both, and converting between them is lossless. PlainScribe exports both SRT and VTT so you're never locked in.
Upload a video (up to 200MB), get time-synced captions at $0.067/min with no monthly fee. Up to 99% accuracy, 47-language transcription and translation, and export to SRT, VTT, TXT, and CSV. Verdict: the best value for accurate, portable caption files — and the only pick that auto-deletes your video after 7 days.
Auto-captions inside a full browser video editor. Freemium, subscription from ~$10/month; free tier adds a watermark. Verdict: great if you want to edit and caption in one place.
Polished caption styling, speaker labels, and team features on a subscription. Verdict: strong for branded, broadcast-leaning work.
$24–$33/month. Edit the video by editing the transcript; captions fall out naturally. Verdict: excellent accuracy and workflow for podcasters/YouTubers, at a subscription price.
Purpose-built for short-form, with auto-styled on-screen captions. Subscription-based. Verdict: ideal for vertical social video, less so for plain caption files.
$0.25/min AI or $1.50/min human (99%+) captions; clean SRT/VTT output. Verdict: worth the premium when caption accuracy is critical.
$10–$25/month with strong translation across many languages. Verdict: good for subtitling content for international audiences.
| Tool | Price | Accuracy | Model | Best for | |------|-------|----------|-------|----------| | PlainScribe | $0.067/min ($4/hr) | up to 99% | Pay-as-you-go | SRT/VTT export, privacy | | Kapwing | from ~$10/mo | ~94–97% | Freemium/sub | Editor + captions | | VEED | Subscription | ~94–97% | Subscription | Styled pro captions | | Descript | $24–$33/mo | ~94–97% | Subscription | Text-first editing | | Zubtitle | Subscription | ~94–97% | Subscription | Social short-form | | Rev | $0.25/min AI; $1.50/min human | 99%+ (human) | PAYG | Human accuracy | | Happy Scribe | $10–$25/mo | ~94–97% | Freemium/sub | Multilingual subtitles |
Verdict: for accurate caption files you can drop into any platform, PlainScribe wins on price and portability. Pick Kapwing or Zubtitle when you want captions burned and styled onto social video, and Happy Scribe for heavy translation.
What is the best subtitle generator? For accurate, portable SRT/VTT files without a subscription, PlainScribe is the best value at $0.067/min with up to 99% accuracy and 47-language support. For styled social captions, Kapwing and Zubtitle lead; for translated subtitles, Happy Scribe.
What's the difference between SRT and VTT? SRT is the simplest, most universally supported caption format. VTT (WebVTT) is web-native and supports CSS styling. Most platforms accept both, and conversion is lossless — PlainScribe exports both so you can use either.
Can subtitle generators translate captions? Yes. PlainScribe transcribes and translates across 47 auto-detected languages, and Happy Scribe specializes in multilingual subtitles. You generate captions in the spoken language, then translate to your target languages.
How accurate are auto-generated subtitles? On clean audio, AI captioning reaches 94–99% accuracy (PlainScribe up to 99%). Background noise, accents, and overlapping speakers reduce accuracy, so always review before publishing. Rev's human captions hit 99%+.
Are auto-captions free? Some tools offer free tiers (often watermarked). PlainScribe gives 30 free minutes with no credit card and no watermark on exported caption files. See free transcription software.
PlainScribe gives you 30 free minutes, no credit card required. Generate your first captions, see pricing, or browse our transcription tools. For the full landscape, read our best transcription software roundup and our guide to audio transcription apps.
Get started with 30 free minutes. No credit card required.