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How to Add Subtitles to MP4 Files on Mac/Windows (Windows 10 Included)

by Christine Smith • 2020-06-23 21:05:09 • Proven solutions

Are you looking for a hassle-free way to add subtitles to your MP4 video? It won't be a big deal if you find the right software. This tutorial will show you how to add subtitles to MP4 videos before you know it.

Part 1. How to Add Downloaded Subtitles to Your MP4 Videos

To load your desired subtitles to any format movie you have, we highly recommend our Wondershare UniConverter (originally Wondershare Video Converter Ultimate) (Windows 10 supported). With this subtitle adder, you can add subtitles for videos like MP4 for either saving a video file to play virtually anywhere, or burning it to DVD for watching on TV. All will be done by the subtitle software. No installation of any other third-party tool is needed.


Wondershare UniConverter - Your Complete Video Toolbox

  • Edit, Enhance & Personalize your video files with adding subtitles.
  • Trim, crop, add subtitles, apply effects to your videos like MP4, MKV, AVI.
  • Download videos from 10,000+ video sharing sites.
  • Convert video to over 1,000 formats including MP4, MOV, AVI and more.
  • Converts files 30x faster than other converters.
  • Easily record streaming online videos.
  • Burn and customize your video to DVD with free DVD menu templates.
  • Streaming Your Media to TV.

What Video and Subtitle Formats Are Supported?

  • Video formats: MP4, AVI, MKV, WMV, MPG, MPEG, VOB, TOD, MOD, FLV, and all regular video formats.
  • Subtitle formats: SRT, ASS, SSA.

How to Add Subtitles to MP4 Permanently:

Before getting started, you need to download corresponding subtitles to your computer (most of subtitle files are with .ass and .ssa file extension). Then follow the easy steps to merge subtitles with MP4 video into a new file or onto DVD.

Watch Video Tutorial to Add Subtitles to MP4 Mac/Windows

Detailed Steps on How to Add Subtitles to MP4 Video on Windows

  1. Load your target MP4 video to the subtitle converter.
  2. Import the subtitles to the video subtitle maker.
  3. Merge the subtitle to the MP4 video and convert to a new video file.

Step 1 Import MP4 video to the subtitle adder.

After installing this subtitle to video converter (Windows 10 supported), you can run the program and import your MP4 video by dragging video to the primary window, or by clicking Add Files button to locate MP4 video on your computer.

add mp4 video

Step 2 Add subtitles to MP4 video.

When the MP4 video thumbnail shows up in the primary windows,choose either one of the editing buttons under the video to get the video editing window.

Enter the MP4 Subtitles Editor Windows

Go to the Subtitle tab at the top. Then load an external subtitle files, .srt, .ssa, or .ass by clicking the ... button to open the subtitle drop-down list. After the subtitle is loaded, you can preview it at a suitable time with subtitle in the preview windows. It will choose the default subtitle sytle automatically.

Add subtitles to MP4 video

On the panel, you can also make a custom subtitle style through font, color, size, position, transparency, etc. When you're happy with the MP4 subtitle, click OK button to confirm settings and return to the primary window.

Customize MP4 subtitles in style

Note: You can also stick a text watermark or image watermark to your MP4 video in the above video editing window.

Step 3 Export MP4 video with subtitle or burn MP4 to DVD.

Now it's time to save subtitles to MP4 video permanently. Firstly, choose a desired output format by clicking the drop-down icon beside Convert all files to option on the top-right corner. Then, choose a video format from the drop-down list and double-click it. Finally, click Convert All button to start conversion. The subtitle will be written permanently on the output video. If you want to burn MP4 to DVD with subtitles, you can burn it under the Burn tab.

Export MP4 video with subtitle

You're done. With Wondershare UniConverter, you can effortlessly add subtitles to MP4 video for playing on your computer, TV or other devices. You can also watch the video tutorial for reference. Read more to learn on how to add subtitles to video Mac >>

Part 2. Edit Your Own Subtitles to Create A New MP4 Movie

To add subtitles to your recorded MP4 video clips, Wondershare Filmora (originally Wondershare Video Editor) makes it pretty easy. This program provides a extensive text templates you can use to add captions for better explanation.

This program is available on both Windows and Mac platform. Please download the right version as per your operating system. In the following, Windows version is taken as an example.

Step 1 Import your source MP4 files.

Launch this program and select "16: 9" or "4:3" aspect ratio as to enter into the primary window. Then click Import to load your MP4 videos from file folder on your computer. The imported video clips will be shown as thumbnails in the left pane.

When you load all MP4 files you need, simply drag and drop them to the Video Timeline.

burn subtitles to mp4

Step 2 Add subtitles to MP4 video and customize it.

Now switch to Text tab, and then drag your favorite template to the place you want to the Timeline. Now you'll see a text thumbnail reading T.

Double-click it to access the text editor panel, here you can type in your own text, and customize the font, color, animation, etc. as you like. After that, click Play icon to preview the real-time effect.

Add subtitles to MP4 video and customize it

When the subtitles come into the right place in your MP4 video, drag the Text file duration to sync for your video. Meanwhile, a Timeline Zoomer is available to zoom in/out the Timeline to help you locate exactly the place you want.

Step 3 Export a new movie.

When everything is okay, hit Create to export a new MP4 file included with subtitles. In the output window, you can select MP4 from "Format" tab, or go to "Devices" tab to pick up a device icon like iPad to save it on your computer. You can even share your creation directly onto YouTube, or burn it to a DVD disk.

Export a new movie


Both methods mentioned above to burn subtitles to MP4 video save you a lot of time and troubles. If need, you can also make other video editings like rotate, trim, cut, adjust brightness, contrast, apply background music, transitions, visual effects and more. In that way, you can get the most out of your MP4 files. If you only need one professional editing tool, then choose Wondershare Filmora; but if you want to own a complete video solution, such as downloading videos from YouTube, convert videos to many different videos, record videos etc., then Wondershare UniConverter would be more economic. Just download it and have a try.

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Christine Smith

Christine Smith

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