Add subtitle to MP4
Add Subtitle to Your MP4 Videos in Seconds with Flixier
Are you looking for a quick and simple method to add SRT to MP4 videos? Flixier will take care of you! You can easily add SRT files or embed subtitles in MP4 videos using our online subtitle editor.
You may quickly and easily add SRT to MP4 videos using Flixier's user-friendly interface without installing any other software. To complement the aesthetic of your video, you can alter the fonts, sizes, and colors of your subtitles.
Stop battling with difficult software to add SRT to MP4 videos. Let’s take a look at how easy it is to add SRT files to your MP4 videos with the help of our online video editor!

Your AI Subtitle Generator
Automatically creating subtitles for your MP4 videos with Flixier's AI subtitle generator can save you time and work. Without the need for manual transcription or editing, you can quickly create accurate and interesting subtitles for your videos. Flixier uses cutting-edge machine learning algorithms to analyze the audio in your video and produce subtitles that accurately reflect the words being spoken. This means that rather than spending hours painstakingly transcribing and editing your subtitles, you can generate them in minutes.
Embed Subtitles in MP4
Make your videos more accessible and engaging by adding subtitles with Flixier. Subtitles that are embedded in a video can be seen without an additional subtitle file, making them perfect for sharing across many platforms and devices. By doing so, you may enhance your viewers' experience and make your videos accessible to a wider audience.
Customize Your Subtitles
With Flixier's online subtitle editor, you can completely modify your subtitles to match the aesthetic of the video and increase audience accessibility and engagement. To produce a polished video with precise and interesting subtitles, you can change the font, size, color, location, and backdrop of your subtitles You can quickly modify your subtitles in real-time with Flixier's user-friendly interface, and you can preview your changes to see how they'll look on your video.
Add SRT to MP4 Online
You don't need to download or install any software to add SRT files to your MP4 videos with Flixier's online subtitle editor. You can upload your MP4 videos and SRT files to Flixier's web platform and quickly combine them. Flixier's online subtitle editor is a convenient and simple way to add SRT files to your MP4 videos and produce professional-looking videos with precise and interesting subtitles that don't require any downloads or installs.
How can I add subtitles to MP4
Clicking the Choose Video button up top is the quickest way to get started. You can then select videos and subtitle files straight from your computer or import videos quickly using one of our direct connections with cloud storage services to import videos in a matter of seconds.
Drag and drop the SRT subtitle file onto a track above the MP4 video in the timeline at the bottom of the screen. To prevent any synchronization problems, make sure the files are aligned to the left.
If, on the other hand, you want to generate subtitles with Flixier, all you need to do is to go to the subtitle menu on the left side of the screen and choose "Auto Subtitle." Finally, select "Start Auto Subtitle" and then sit back and watch Flixier do its magic. You can then edit the generated subtitle easily from the left side menu, or style them from the menu on the right side of the screen.
Simply click the Export and Download button at the top right of the screen if you're satisfied with the outcome. It's all over; you're done. Our lightning-fast cloud servers will process the video file, and when it is prepared, it will be downloaded instantly to your computer.
Why Use Flixier to Add Subtitles to MP4?
Add Subtitles to MP4 Free
You can add subtitles to your MP4 videos for free using the Flixier free version of its online subtitle editor. All you need to do is upload your MP4 video to Flixier, add subtitles, customize their appearance, and export the subtitled clip. Just keep in mind that free users are limited to 5 minutes of auto-generated subtitles and your videos will have a watermark in the lower right corner.
Convert Audio to Text
With Flixier, you can rapidly and reliably convert audio to text using a speech-to-text converter powered by artificial intelligence. The application analyzes your audio using cutting-edge machine learning algorithms to provide a written transcript of the speech that can be altered and tailored to your requirements.
Collaborate on Adding Subtitles
You can work together to add subtitles to your MP4 videos using Flixier's online subtitle editor. To produce precise and interesting subtitles for your videos, you might involve team members or clients in your project. You can give your team members access and permissions through Flixier's collaboration tools so they can update and personalize the subtitles to suit their needs.
Add Any Subtitle Type to MP4
You can easily make professional-looking videos with precise and interesting subtitles with Flixier's online subtitle editor, which lets you add any subtitle type to your MP4 videos. With just a few clicks, you can add any type of subtitle file—SRT, VTT, or another—to your MP4 video using Flixier's web platform.

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.

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'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.
Frequently asked questions.
Frequently Asked Questions
Can MP4 have embedded subtitles?
Yes, subtitles can be embedded in MP4 videos. As opposed to being kept in a separate file like SRT or VTT, the subtitle information is now immediately incorporated into the video file. While you can also add SRT files to MP4 at all times, on video players that support them, embedded subtitles can be viewed without an external subtitle file. This is a practical way to add subtitles to your MP4 videos because it is supported by many contemporary video players and streaming providers.
How do I create a SRT file for MP4?
To create an SRT file for your MP4 video, create a new text file and save it with a .srt file extension. Add the subtitle index number, start and end timecodes, and subtitle text for each subtitle. Once done, you can add the SRT file to your MP4 video using a video editing software or an online subtitle editor. However, you can also choose to auto-generate and add subtitles to MP4 online with a tool like Flixier.
Can you add subtitles in MP4?
Yes, you can add subtitles to MP4 videos using Flixier's online subtitle editor. You can easily add subtitles to MP4 free with just a few clicks, without the need for any software installation. Adding subtitles can make your videos more accessible and enjoyable for a wider audience.
Can I add a SRT file in any language?
Yes, you can use the online subtitle editor provided by Flixier to add SRT files in any language to your MP4 video. Regardless of the language, Flixier supports a wide range of languages and makes it simple to build and add SRT files to your MP4 videos.
Can I make changes to my subtitles?
Yes, you can make changes to your subtitles using Flixier's online subtitle editor. You may quickly change your subtitles using Flixier's editing tools after adding them to your MP4 clip. These adjustments can be made to the text, timing, font, size, and color of your subtitles.
With the help of Flixier's online subtitle editor, you can also view a live preview of your modifications to see how they will affect your video.
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