Online Subtitle Editor

Edit captions and subtitles right in your web browser
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Video Subtitle Editor

Are you looking for an easy way to edit a video’s subtitles and captions? You’re in the right place! Our online subtitle editor lets you drag over any subtitle file type and change their text, font, color and timings using a nice, visual editor. No need to bother installing old apps with complicated, antiquated interfaces or bother typing in timestamps manually. With Flixier, you can edit subtitles alongside your video, right in the web browser! And adjusting timings is as easy as dragging something a little more to the left or to the right.

Online Subtitle Editor

Make edits to subtitle text and timings

With Flixier you can make changes to the text on your subtitles and make fine adjustments to the time your subtitles show up in your video. You can even introduce new subtitle text at any spot in your video with just a few clicks.

Add style when editing subtitles 

Subtitles are usually very functional without any styling attached, still for those moments where you need them to stand out you can make a ton of stylish changes with Flixier. Choose from over 1000 fonts or add your, change colors, add backgrounds or make them italic, bold or underlined. All with one single tool.

Create your own subtitles

Use Flixier to add subtitles to a video easily and without any hassle. Just press the Add Subtitle button and start typing them in. Our precise timeline will allow you to modify the timings of your new subs easily and the panel on the right side lets you modify the font, color, size and position or save them to your computer in any format you want.

Edit .SRT subtitles and more

Flixier comes with full support for any subtitle file you might need to edit. From .SRT to .SUB to .VTT anything can be adjusted with our online tool. Also, when downloading a subtitle after editing you can choose your preferred filetype which means that you can also convert subtitle files with Flixier.

How to edit subtitles online:

How to edit subtitles online:

To start editing your subtitle, just click the Get Started button above and import a subtitle file to your library and then drag and drop it on the timeline.


Select the subtitle object and use the right side panel to modify the content, timings and appearance of your subtitle. You can add new lines with the Add Subtitle button, delete lines and edit the timings by dragging on the separators in the Timeline. The Options tab of this menu lets you easily change things like font, color and size.


To save the subtitle to your computer, go to the Subtitle tab, choose a format from the drop-down list and click the Download button. If you want to permanently embed the subtitle in a video you can create an entire video in the timeline and then press the export button at the top right corner of the screen.

Why use Flixier to edit subtitles:

It’s a free subtitle editor

Flixier is completely free to try and use. Free accounts have access to the same features as paid ones so you can edit your subtitles with Flixier and experience what our tool has to offer.

Fast and simple to use

Our tool is fast and easy to use, meaning you won’t have to spend hours watching online tutorials just to figure out how to get the job done.

You can use it on any computer

Because Flixier runs online and doesn’t require any downloads and installs you can use it on any computer and operating system, from Mac, to Windows or ChromeOS.

Generate automatic subtitles

Need a quick way to create synchronized subtitles for your videos? Upload your video to Flixier, right-click on it in the Timeline and click on Generate Subtitle to get a precise, auto-synced subtitle file that you can then edit manually or save to your computer in any format you want.

Create text-to-speech voice overs

If you want to add a voice over to your video but are feeling a little camera shy or don’t have a good enough microphone, Flixier can help. Our online video editor uses machine learning to generate natural sounding narrations in over 20 languages. Just paste in the script and click on generate to get a voice over for your video done in seconds.

Make and edit videos

On top of being great when you need to edit subtitles or add captions to a video, Flixier is also a fully featured video editor and can be used for any other video creation needs, from making intros, compressing videos, converting them to MP4 or recording your screen. Cut, trim and crop clips, record your screen, microphone and camera, add transitions, motion titles and call to action animations, make intros for YouTube or social media videos and more.


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.

Frequently Asked Questions

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

Is Flixier subtitle editor free to use?

Is Flixier subtitle editor free to use?

Yes! Flixier offers a free plan so you can use it to edit subtitles and save them to your computer without having to pay anything. You don’t even need to create an account to try it out, simply click the Get Started button above and you’re good to go.

Can I change the font and color when editing a subtitle?

Can I change the font and color when editing a subtitle?

You can easily change the font and color using the subtitle Options panel. You can even choose from over 2000 fonts, upload your own font or add a colored outline or background to your subtitle.

Can I add subtitles to a video permanently online?

Can I add subtitles to a video permanently online?

Of course! While Flixier does give you the option to download your subtitles separately, you can always hard code them into the video by exporting the video with the Subtitle object still visible on the canvas.

Can I add subtitles to a video permanently online?

Can I add subtitles to a video permanently online?

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