How to Add Subtitles to MP4 Files in Mac/Win (Windows 10 included)

Looking for a hassle-free way to add a subtitle 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 video

To load your desired subtitles to any format movie you have, we highly recommended our Video Converter Ultimate (Windows 8 supported). With it, you can add subtitles to MP4 video for either saving to a video file to play virtually anywhere, or burning to DVD for watching on TV. All will be done software. No installation of third-party tools is needed.

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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

After getting subtitle files from internet (most of subtitle files are with .ass and .ssa file extension.), we need use Video Converter (Windows 8 supported) to merge subtitle with MP4 video into a new file or onto DVD. Now follow easy step to put subtitles on MP4 video in a flash.

Step 1: Import MP4 without subtitles

After installed this subtitle to video converter (Windows 8 supported), run the program and import your MP4 video by dragging video to the primary windows, or by clicking "Add Files" button to locate MP4 video on your computer.

mp4 subtitle converter

Step 2: Add subtitle to MP4 video

When MP4 video show up in the primary windows, right click it from the list and choose "Edit" button to launch the video editing window. Go to "Subtitle" tab at the top. Then load an external subtitle files srt, ssa, 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. The default style will be applied. By checking the "T" option besides, 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.

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

add subtitle to mp4

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

Now it's time to save subtitle to MP4 video permanently. Firstly, choose a desired output format by clicking the "Output Format" option on the right side. Then, choose a video format or preset formats for iPhone, iPhone, iPod, iPad. Finally, click "Convert" button to start conversion. The subtitle will be written permanently on the output video. If you want to burn MP4 to DVD with subtitle, you can burn it in the "Burn" interface.

how to add subtitles mp4

You're done. With Video Converter , you can add subtitles to MP4 video for playing either on computer, device or TV.

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) (Filmroa for Mac(Originally Wondershare Video Editor for Mac)) makes it pretty easy. This program provides a extensive text templates you can use to add captions for better explanation. Download a free trial here:

Download win version Download mac version

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 show 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.

how to add subtitle mp4

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.

add subtitle to mp4 mac

The above two methods to burn subtitles to MP4 video will save you a lot of time and trouble. If need, you can also make other video edits with Wondershare Filmora (originally Wondershare Video Editor), like rotate, trim, cut, adjust brightness, contrast, apply background music, transitions, visual effects and more. In that way, you can get the most out your MP4 files. Just download the program to have a try. You will love it.

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Superb software...thx a lottt
Hi, please get my answer below. 1. The position of WS converter can't be adjusted, while the transparency can be adjusted. Please get the screenshot here, After importing the video, please click "Edit" to pop up the video editing window. Then You can click the "T" icon to edit the subtitle. 2. You can convert to MP4 format with CC(closed caption)
Dear Liza, Purpose to read your article was, because I was looking for a solution how to in corporate subtitles in the MP4 movies, which I convert WS convertor. I read your article but there are either some descrepancies or something is missing to my converter: 1. I couldn't find a way to ajudt position and transparency of subtitles 2. i couln't understand whether it is possible to convert to MP4 format with CC (closed caption) or soft subtitles
Very good software, i encoded/subted a file last night with a different product (handbrake) in 40 min, and loaded my CPUs 4 cores to the maximum, it did a good job but it was almost a Stress Test... then i tried with this one (Wondershare) and same quality, ~42 minutes, using only 50% of load in all cores! Awesome ! ! ! Edit: I just finished encoding a 1.8 gb file and the result was kind of choppy... i mean like if it was less FPS than the original... maybe a little tweaking needed after all... and the Size duplicated! that's all! Cheers!
Hi Clot, thanks for using our program, I have forwarded your problem to our technical support team and they will contact you to solve this problem in 24 hours.
I just download this program and the first thing I did was try to add my MP4 file and I got a "access violation" error. What just happened?
Hi Gautam, sorry for causing the inconvenience. For this case, we need you to subscribe the subtitle to our support teamto analyze the problem.
I have added subtitles to a mp4 file but the subtitles got embedded only for the 1st 50min of the movie whereas movie is of more than 2 hours. What have I done wrong?
You can change the size and the color of the subtitle, if you look at the second picture, inside the red oblong that they marked, there is the letter T if you press it you can change the color and the size..
whenever i add subtitle files, the font is very small and yellow in colour making it very difficult to watch! is there any way to change style and size of subtitle while converting? plz help !!
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