What is Caption.IM?
Caption.IM is specifically designed to enhance communication efficiency and information accessibility, suitable for remote meetings, online courses, multilingual collaboration, and hearing assistance. Users can activate it in just three steps: ① Open the app and grant audio access permissions; ② View real-time captions with over 98% accuracy; ③ Translate captions into more than 50 languages on demand. The entire process requires no additional setup—just launch and use.
Caption.IM supports direct capture of system audio and is compatible with Zoom, Google Meet, Microsoft Teams, Webex, Slack Huddles, Discord, and various other audio/video applications. All speech processing takes place locally on the device, with no audio ever uploaded to the cloud, no tracking, and no storage, fully meeting the needs of users with stringent privacy and security requirements.
Key features
Real-time captioning: Supports any system audio source (meetings, videos, podcasts, lectures), with caption accuracy exceeding 98%.
Instant translation: Offers real-time translation among over 50 languages, ideal for international conferences, cross-language teaching, and consuming multilingual content.
Use cases and audience
Designed for users who need accessible meeting experiences—such as hearing-impaired individuals, professionals engaged in cross-border collaboration, content creators, educators, and corporate teams that prioritize data privacy.
- Real-time meeting subtitles: Automatically generate bilingual Chinese-English real-time subtitles in meetings on Zoom, Google Meet, Microsoft Teams, and more.
- Cross-language communication assistance: Instantly translate live conversations or video content into over 50 languages, supporting international team collaboration.
- Audio and video content archiving: Generate exportable SRT/VTT subtitle files for system audio from podcasts, lectures, online courses, and more.
System audio streams from any application, including Zoom, Google Meet, Teams, YouTube, podcasts, online courses, and more.
Highly accurate real-time captions displayed on-screen (with multi-speaker annotation), optional real-time translations into over 50 languages, and exportable files in TXT, SRT, and VTT formats.
Frequently asked questions
How does Caption.IM capture audio?
Caption.IM directly captures your device’s system audio output, compatible with any audio application such as Zoom, Google Meet, YouTube, podcasts, and more—no browser extensions or additional configurations required.
Will my audio be uploaded to the cloud?
No. All audio processing is performed locally on your device using an optimized AI model; your audio data never leaves your machine, ensuring privacy and security.
How to use
- 01
Open the Caption.IM app and grant microphone and system audio capture permissions.
- 02
The app automatically captures all system audio on the current device (no plugins or browser extensions required).
- 03
Displays subtitles with over 98% accuracy in real time, supporting automatic speaker recognition and labeling.
- 04
Enable real-time translation into over 50 languages as needed, or export text in TXT/SRT/VTT formats.
Pricing and availability
Free version: €0/month, includes real-time captions, support for 3 languages, 5 hours of usage per month, and basic text export; Pro version: €9.9/month, offers real-time translation in 50+ languages, unlimited duration, SRT/VTT export, and priority support; Enterprise version: custom plans, supporting SSO/SAML, team management, and SLA guarantees.
- Pricing source
- https://caption.im/
- Pricing last updated
- 2026-10-30
Prices and limits may change. Check the official website for current terms.
Official website & sources
Updated on 2026-10-30
