How To Caption Videos

Add closed captions to your videos and share them online
How To Caption VideosHow To Caption Videos
How To Caption Videos

Caption Your Videos

Are you looking to add captions to your YouTube or social media videos before sharing them with the world? You're in the right place! Our online video editor makes it easy to caption or add subtitles to your video straight from your web browser! No downloads or installs required.

How To Caption Videos

Easy to use

Our intuitive interface makes adding captions to your clips as easy as dragging the captions over to the right place and editing the text!

Change the subtitles font

You can easily change the size, font or color of your video captions to make them more accessible and easy to read. You can even upload your own fonts!

Caption videos fast

Our cloud video editor does all the heavy lifting in the background! That means that after you're done captioning your video, Flixier will have it rendered and ready for publishing in a matter of minutes!

Optimize your videos for social media

If you're captioning videos for Instagram or YouTube, we have you covered! Flixier lets you easily choose and switch between different Aspect Ratios, making it easy to create content for different platforms!

How To Caption Videos Online:

How To Caption Videos Online:
Upload your video

Bring your video over to your Flixier library. You can upload videos from your computer, bring them over from cloud storage or even paste in a YouTube link if your video is already on the platform!

Type in your captions

Go to the Text menu and click on Add Subtitle. You can adjust the subtitle size and position by dragging on its edges. Use the Timings menu to add/modify existing text and synchronize your captions with the video. You can also change the subtitle font, color, stroke and many more!

Download or publish your video online

Once you're done captioning your video, click on Export. You can give it a short title and description and have Flixier publish it straight to YouTube or Facebook. Your captioned video will be rendered and ready for download in 3 minutes or less!

Why use Flixier to add audio to your videos:

Increase engagement on social media

85% of Facebook videos are watched without sound. That's why it's important that you caption your videos if you want people to follow along.

Make your videos accessible

Hearing impaired people often depend on captions to be able to fully enjoy online content.

Improve your online courses

The vast majority of students who use captions say that it helps them focus and learn things better.

It's easier than it looks

Captioning can seem like a daunting, tedious task, but Flixier makes it easy by offering a captions system that is fast and intuitive.


I’ve been looking for a solution like Flixier for years. Now that my virtual team and I can edit projects together on the cloud with Flixier, it tripled my company’s video output! Super easy to use and unbelievably quick exports.

Steve Mastroianni -

My main criteria for an editor was that the interface is familiar and most importantly that the renders were in the cloud and super fast. Flixier more than delivered in both. I've now been using it daily to edit Facebook videos for my 1M follower page.

Evgeni Kogan

I'm so relieved I found Flixier. I have a YouTube channel with over 700k subscribers and Flixier allows me to collaborate seamlessly with my team, they can work from any device at any time plus, renders are cloud powered and super super fast on any computer.

Anja Winter, Owner, LearnGermanWithAnja

Frequently asked questions.

If you have any further questions, Get in touch with our friendly team

What apps can caption videos?

What apps can caption videos?

Most video editors will allow you to caption videos, but if you're looking for the fastest, easiest way to do it then an online tool such as Flixier is probably your best bet.

How long does it take to caption videos?

How long does it take to caption videos?

This depends on the length of your video. It also depends on the method you use for captioning. Captioning videos manually is slower but a lot more precise. Automated captioning gets the job done fast, but often leads to captioning mistakes that your viewers will not be pleased with.

How do you add subtitles to a YouTube video that's not yours?

How do you add subtitles to a YouTube video that's not yours?

As of September 2020, Google discontinued the feature that allows YouTube users to submit their own captions for other people's videos. If you want to caption a YouTube video now, you need to use an online video editor. Be careful though! Redistributing other people's YouTube content might fall under copyright infringement, even if you're just adding captions!

How do you add subtitles to a YouTube video that's not yours?

How do you add subtitles to a YouTube video that's not yours?

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