Merge subtitles with video files online
Upload or auto-generate subtitles and easily merge SRT files with your video online
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.
Need more than merging subtitles?
Edit easily
With Flixier you can trim videos or add text, music, motion graphics, images and so much more.
Publish in minutes
Flixier is powered by the cloud so you can edit and publish your videos at blazing speed on any device.
Collaborate in real-time
Easily collaborate on your projects with Flixier, we offer real-time feedback and sharing of projects.
You`re ingood hands
Over 1 million creators use Flixier every month including brands like:
I like Flixier because I can use it anywhere I go and I don`t need a lot of computer requirements but great internet connection. I like how fast it is when it comes to rendering videos and still have the opportunity to continue or start another project while waiting. I appreciate the continuous updates and adjustments because it is necessary for a video editing tool.
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.
I like Flixier because I can use it anywhere I go and I don't need a lot of computer requirements but great internet connection. I like how fast it is when it comes to rendering videos and still have the opportunity to continue or start another project while waiting. I appreciate the continuous updates and adjustments because it is necessary for a video editing tool.
What I like most about Flixier is the flexibility to edit the captions, both in terms of the text and the time where it starts and finish showing it. It gives you full control.
This online free program was extremely easy to use, implement, and integrate into my 9-12th grade tech classes. The projects turned out great and were easy to export. I liked having multiple ways to upload pictures. The software was also easy to understand.
Frequently
Asked
Questions
Can you merge subtitle files?
Yes, Flixier allows you to upload videos in the most popular formats(MKV, MP3, AVI, MP4, and more). Then, you can choose to generate subtitles automatically with the power of AI, add them manually, or upload your own subtitle file(either SRT, VTT, SSA, TXT, and more). With just one click, you can merge subtitles to the video, save it, or publish it directly on social media channels, including Facebook, TikTok, Instagram, Vimeo, and more.
Can I merge subtitles with MKV?
Yes, you can merge subtitles to MKV directly from your browser using an online video editor like Flixier, which doesn’t require any downloads or installs. To reduce your editing time, you have the option to auto-generate subtitles. Add the MKV file to Flixier's Timeline and click the Generate auto subtitle button. In just a few seconds, your subtitles will be added. You can edit and customize them further, changing their position, adjusting their size, or adding backgrounds or animations. Style them to be easily visible and fit your style. Flixier allows you to embed subtitles directly into your MKV file or add them as a separate subtitle file.
How do subtitle files work?
The first step is to import your video to Flixier Timeline. You can import it from your device or from other cloud services like Dropbox, Google Drive, or OneDrive. Right-click on your Timeline and select Generate Subtitles. Depending on the length of the video, it should take a few minutes to automatically create subtitles. If you already have a subtitle file, just use the Upload Subtitle option from the Library tab. For maximum precision, you can even add them manually, adjust their timings, and download them in the format you need. The most commonly used formats are .TXT, .SRT, .STL, .SUB, .ASS, .VTT, .SBV, .SUB, .TTML, .DXFP.
How do I permanently merge subtitles with a movie?
The easiest way to permanently merge subtitles with a movie or other video is with an online video editor like Flixier, which will generate and add subtitles to your movie, allowing you to download the movie to your device or publish it on social media channels like Instagram, YouTube, TikTok, and Vimeo.
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