Live captions & translation extension.
The ultimate live caption translate extension for your browser. Enjoy real-time subtitle translation that floats seamlessly over any livestream, meeting, or video.
Real-time overlay over any livestream.
FlashCaption embeds a customizable, floating caption box directly over your video player. It works seamlessly on YouTube, Twitch, and more, without ever blocking the UI.
Zero latency translation.
Experience the speed of real-time processing. Our engine is designed to keep up with fast-paced gaming commentary and live news without missing a beat.
Outstanding precision and nuance.
More than just word-for-word translation. FlashCaption captures the tone and context of the speaker, ensuring you get the full picture of the creator's intent.
Everything you need
Powerful features designed to give you the best livestream experience.
100+ Languages
Translate instantly from major source languages into over 100 different languages globally.
Cross-Platform
Full support for YouTube and Twitch. Active support for Facebook, Instagram, and X.
Zero Latency
Designed for speed. Enjoy real-time processing that keeps up with fast continuous streams.
Customizable Overlay
Adjust font size, colors, and position to fit your viewing experience perfectly.
Pay-As-You-Go
Fair pricing model. No subscriptions, only pay for the minutes you actually use.
High Precision
Advanced speech recognition engine with outstanding accuracy for casual and technical speech.
Loved by the community
Join thousands of people who are breaking language barriers every day.
“FlashCaption is a game changer for following Japanese streamers. I can finally catch all the jokes and context in real-time without needing to wait for subbed clips.”
“As a student, I use it to watch technical lectures from universities around the world. The accuracy for academic terms is surprisingly high.”
“The best part is the floating overlay. It doesn't obstruct the video and feels like a native part of the site. Super lightweight too!”
“I've tried many translation tools, but FlashCaption's pay-as-you-go model is the most fair. I only pay for what I actually watch.”
“Supporting 100+ languages is insane. I use it for watching everything from Korean cookery shows to Spanish news.”
“Setup took less than a minute. It just works. If you watch global livestreams, you need this extension.”
Choose the plan that fits your workflow.
Get 60 minutes free when you sign up. Upgrade when you need more.
Pay As You Go Pack
Never expires. No subscription.
- 100 Hours of processing
- Credits never expire
- No recurring charges
Yearly Pro
Just $1.66/mo — 2 months free!
- Unlimited hours processing*
- Zero latency real-time captions & translation
- All 100+ translation languages
- Translates any browser tab globally
- No data logging, privacy first
Monthly Pro
Billed monthly. Cancel anytime.
- Unlimited hours processing*
- Zero latency real-time captions & translation
- All 100+ translation languages
- Translates any browser tab globally
- No data logging, privacy first
*Unlimited usage is subject to our fair use policy. Pay As You Go credits never expire. Billed securely and transparently.
Download FlashCaption
Get real-time captions and translations on your favorite browser in seconds.
Need help?
Check our documentation, report a bug, or contact support if you're having trouble installing.
Frequently asked questions
Everything you need to know about using our live captions Chrome extension.
Ready to Translate Any Stream in Real-Time?
Join thousands of users enjoying seamless live captioning and instant subtitle translation. Add FlashCaption to your browser for free and unlock the full potential of global videos.