Live caption your audio and share the real-time text on the web

Want to enhance the audience experience during your presentations by offering on demand captions? Do you worry that you do not have the skills to make it happen? CaptionSentry makes it simple.

Learn more

How it works

If you have a computer, a microphone, and an Internet connection you can create real-time captions.

There are no recordings to capture, no files to upload, no software or hardware to install. Place an order and CaptionSentry will respond with a unique service site link. Click the link, enable your microphone and start speaking - you'll be sharing live speech to text in English or Spanish in minutes.

Your transcript appears in real-time and is freely available to an unlimited number of users on a dedicated web page. Display on a big screen or share your service site with anyone with a web enabled device - desktop, laptop, tablet or smartphone.

CaptionSentry is available on the following devices:
Android, Chrome OS, iOS, macOS, and Windows

free Template by uicookies.com free Template by uicookies.com

Try for free or place an order

Free Trial

No credit card required
Get started in minutes
5 minute free trial


Order Service

On Demand Service 24x7
English/Spanish Captions
Fee $7.50 / 15 minute increments

How to get the best performance from CaptionSentry


CaptionSentry performs best when provided with high-quality audio input. Although it is not absolutely necessary, for best results use an external wired or wireless microphone.

The speaker(s) should be in range for the microphone to pick up speech clearly.

Speakers should use clear enunciation.

Minimize background or ambient noise. Avoid music and mutiple or competing speakers.

Do not run other applications requiring microphone access while using CaptionSentry. Maintain CaptionSentry as the active program.

CaptionSentry has been designed to support modern desktop browsers (Chrome, Firefox, Safari, Edge). If you are not using a supported browser (ie Internet Explorer), it is strongly recommended that you download or upgrade to a supported browser.


Preview CaptionSentry

Preview CaptionSentry

CaptionSentry Service Sites

are reserved for 24 hours

Enable your microphone

and start speaking

To see Tool Tips

move mouse over icons

Contact Us

Have a question about CaptionSentry?
Want to let us know about your CaptionSentry experience?

CaptionSentry is under continual development. We’d love to hear your thoughts on how to improve the service, features you’d like to see, or issues you encountered. Send us a message. We will answer it as soon as possible.

Many Thanks!
Team CaptionSentry