Unlimited AI transcription of audio and video in 98+ languages
Unlimited AI transcription of audio and video in 98+ languages
Caption.IM records 0 monthly visits with 0% month-over-month growth and Freemium, Free Trial pricing. SyncWords records 21,869 monthly visits with +6.8% growth and Paid pricing.

Real-time AI captions and translation for every desktop app
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | caption.im | syncwords.com |
| Pricing Model | Freemium, Free Trial | Paid |
| Monthly Visits | 0 (0) | 21.87K (21,869) |
| MoM Traffic Delta | 0 (0%) | +1.39K (+6.8%) |
| Primary Market & Share | 🌐 Global (—) | 🇧🇷 Brazil (69.7%) |
| Direct Visits / mo | 0 | 10.34K |
| User Rating | 4.2 | 4.4 |
| Supported Platforms | Website | Website |

Real-time AI captions and translation for every desktop app
Captures system audio output so captions appear over meetings, calls, videos, podcasts and lectures without per-app setup.
Translate live captions into dozens of languages to follow international meetings and foreign-language content in real time.
All audio processing runs locally with optimized AI models, so your audio is never uploaded to the cloud.
Use the same engine as a voice input method to dictate text directly into any desktop application.

One live feed in, captions, subtitles and AI dubs out for every audience
Send your existing SRT/MPEG-TS, CMAF or RTMP stream and get captions back in under two seconds without re-encoding video or adding caption hardware.
Human-verified accuracy keeps live captions fast and correct, with custom dictionaries for presenter names, players, places and specialist terms.
Deliver same-language captions, translated subtitles and AI dubbing from one feed, so a single broadcast reaches every market in its own language.
Vocalics AI voice dubbing recreates the speaker's tone and pacing in another language, suitable for live news, sports, events and live shopping.
Unlimited AI transcription of audio and video in 98+ languages
Unlimited AI transcription of audio and video in 98+ languages

Free / Open-sourceAI transcription and meeting notes in 150+ languages
Free / Open-sourceAI transcription and meeting notes in 150+ languages
AI and human transcription, captions and investigative case analysis in one platform
AI and human transcription, captions and investigative case analysis in one platform
Free / Open-sourceLive AI interpretation, transcription, subtitles and dubbing in 125+ languages
Free / Open-sourceLive AI interpretation, transcription, subtitles and dubbing in 125+ languages

Turn any video or audio into text in seconds
Free / Open-sourceAI transcription, subtitles and video translation in one browser studio
Free / Open-sourceAI transcription, subtitles and video translation in one browser studio

Free / Open-sourceAI captions, transcription, and video translation in 95+ languages
Free / Open-sourceAI captions, transcription, and video translation in 95+ languages
Just speak. Write faster, in any app.

Voice dictation that writes like you talk, in any app
Voice dictation that writes like you talk, in any app

Free / Open-sourceAI video dubbing, subtitles and text-to-speech in 10+ languages
Free / Open-sourceAI video dubbing, subtitles and text-to-speech in 10+ languages

Free / Open-sourceAI dubbing, avatars and live translation in one multilingual platform
Free / Open-sourceAI dubbing, avatars and live translation in one multilingual platform

Free / Open-sourceAI subtitles, dubbing and 200-language video translation in one browser editor
Free / Open-sourceAI subtitles, dubbing and 200-language video translation in one browser editor