Merge subtitles with video files online

Upload or auto-generate subtitles and easily merge SRT files with your video online

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Merge subtitle with video straight from your browser

Generate subtitles and captions easily and merge them with your YouTube videos, Instagram Reels, TikTok, movies, or other video content. Viewers recall video content better with subtitles, but only some online platforms can read external subtitles files. Merge subtitles with videos to have your message read no matter what. Flixier helps hardcode your subtitle files(SRT, VTT, SSA, etc.) on videos straight from your browser, allowing you to generate, add, and edit subtitles online. You can also convert STR files into other formats and translate them into over 130 languages. All of these and more without losing the quality of the video.

Generate subtitles automatically

Automatically subtitle your videos online, saving hours of editing. The Flixier AI-powered subtitle generator recognizes voice from your video or audio file and generates perfectly accurate subtitles. Once generated, the subtitle editor will perfectly synchronize subtitles with your video in seconds.

Add subtitles in any format

Flixier supports a wide range of subtitle formats; besides SRT, you can add and edit subtitles in formats such as .STL, .SBV, SUV, .VTT, SUB, .TTML, .DXFP and others. Just upload your video or audio file and start generating accurate subtitles that you can save in any preferred format.

Merge subtitle files to MP4 videos online

The video and subtitle merger works from any browser and on any device. You can either generate subtitles with our auto subtitle generator, add them manually, or drag your own subtitle file over to Flixier to merge it with your video and even edit the text or style of the subtitles.

Edit subtitles faster from any device

No more boring plain text on your videos. Now, you can add subtitles to video and style them to match the tone and vibe of your video content. Create visually appealing subtitles by choosing from over 1000 fonts, adjusting the size, color and position. After permanently embedding subtitles to videos, you can download or share them directly on social media platforms.

How to merge subtitles with video

1

Upload your video file

Click the Get Started button to open Flixier in your web browser. You can import a video file from cloud storage services, your phone or any device, or even paste in YouTube and TikTok links. After your video is uploaded to the Flixier library, drag it down to the Timeline at the bottom of the screen.

2

Merge subtitles

Click the Subtitles button on the left side of the screen. You can add subtitles manually, upload them from your device, or generate them automatically. If your video isn't in English, uncheck the Automatic Language Detection checkbox and select your language from the drop-down list.

Furthermore, you can delete lines, edit timings by dragging the separators on the Timeline, or customize their appearance using the Style tab.

3

Download or Publish

Click the Export button to automatically burn the subtitles into your video and save it as one file. You can download it on your device or publish it online. Thanks to cloud-powered rendering technology, Flixier will render your video in less than three minutes. That’s it!

Why use Flixier to merge subtitles:

Style subtitles your way

You can merge subtitles to your videos in seconds, right from your browser, without downloading any software. Create more engaging content fast, but stay on brand across all digital channels with customized subtitles and captions. Highlight important information, animate relevant words, and choose from over 1000 built-in fonts, or upload yours as well.

Craft compelling content faster

Being accessible from any browser or device and having intuitive editing features, our powerful online subtitle editor quickly merges subtitles to any video, along with lighting-fast rendering time, so you can focus on creating more content than spending time on editing.

Keep your message accessible

Make sure your content is understood and enjoyed by everyone who watches it. Automatically translate subtitles into over 130 languages with our AI-powered subtitle translator and watch your audience expand. Save each version as a different file on your device.

Transform viewers experience

Merge subtitles that anyone can keep up with. Enhance your viewer's watching experience by improving your subtitle editing. With Flixier, you can split and merge subtitles, add extra captions, adjust the timing of individual subtitles, and get a character-per-second warning if your subtitle speed is higher than 20 characters per second.

What people say about Flixier

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

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’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 - RockstarMind.com

Frequently Asked Questions

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