Imagine you have found a comfortable pose and decide to see a MP4 movie whatever you love. At this time, you have searched the whole net but none of them has the subtitle of this movie, do you want to let this joyful afternoon damaged? Of course not! Therefore, let me show you how to add subtitles to MP4 online and with two more methods about it, please follow the steps below.

Part 1: How to Add Subtitle to MP4 File during Playback

Leawo Blu-ray Player is a professional video player that not only lets you obtain the cinema-like viewing experience, but also lets you subtitle or modify your video. As a 100% free and 6-in-1 media player software, Leawo Blu-ray Player contains all media playback solutions you need for your leisure entertainment, including Blu-ray, DVD, CD, HD (4K), ISO file with AVI, MPEG, WMV, ASF, FLV, MKV/MKA and other popular formats supported. With advanced image and audio processing technology, Leawo Free Blu-ray Player software could provide you quality-lossless image for even 4K video playback, stereo audio enjoyment, all regions free DVD decryption and user-oriented playback control. Do you have a favorite video and want to intercept or reprint subtitle? The Leawo Blu-ray Player can help you. You can operate according to the following procedures.

Step 1.

Download and install Leawo Blu-ray Player on your computer.

Step 2.

Click “Open File” button, choose a video you like and then load the targeted movie to the program.

Step 3.

Click the tool icon on the main screen of the player.

Step 4.

Choose “Subtitle” and then click the seventh line. You can find out a subtitle from your computer and load it into your video. Once the subtitle has been added, then you can see the subtitles in the movie.

Part 2: How to Merge or Delete Subtitle Track on MP4 File

If you prefer to merge or delete subtitle from your current MP4 file, then you should turn asides to another powerful tool which can both merge, add and delete subtitles form the original video. That is Leawo Video Converter. It is not only a powerful video converting tool which can convert your files to other more than 180 types of formats, but also would allow you to edit the video based on your preferences, including deleting the subtitle track on MP4 file. Next, you can refer to the following steps.

   

Step 1.

Install Leawo Video Converter on your computer.

Step 2.

Load the MP4 video to the program. Click “Add Video“and click Next to add movies. Once you have imported the MP4 video, it would be seen on the panel.

Step 3. 

Remove subtitles. Once the video file has been imported to the list, you can click on the “Subtitle” drop-down list to select “None” option. Then the subtitle will be disabled for the video.

Step 4.

Merge and add subtitle. If you would like to add subtitle to the MP4 video , you can click the “Add Subtitle” to load the downloaded MP4 subtitle via the converter.

Step 5.

Start converting. Click the big green icon “Convert” on the main interface to start converting the video. Before it starts, you need to confirm the “Save to” route. Then just click “Convert” to start. Finally, you just need to wait and the conversion process will be completed in several minutes.

Part 3: How to Add Subtitle to MP4 via VLC

As another classic and powerful media player to provide different media playback solutions for users, VLC Media Player can be able to handle various tasks. With this stable and simple tool, users can play almost any format video smoothly. Without downloading and installing too much any other codec packs and without any configuration hassle, VLC Media Player can run very well which allows users to do many tasks related to videos like subtitling videos. For the details on how to add subtitle track to MP4 via VLC, please refer to the following steps.

Step 1.

Update VLC Media Player if needed, and open VLC Media Player and then click on the menu button of “Media” in the top toolbar.

Step 2.

Choose the option of “Open File…” to hit on to choose the video file on your computer local folder.

Step 3.

When the video file is opened by VLC, you can right-click on anywhere to bring out a panel. Hit on “Subtitle> Open File…” successively to locate the subtitle file that you desire to add to the video.

Once the subtitle has been put on MP4 file via VLC, you can immediately see the MP4 video with the imported subtitles then. If you would like to hide the subtitles during the playback, you can double click on the screen to choose whether you would like to show the subtitles or not.

Part 4: How to Add Hardcode Subtitle on MP4

In comparison with common subtitles, there is another type of subtitle you can know. That is hardcode subtitle. What is hardcode subtitle? In other terms, hardcode subtitle can be regarded as the “burned-in” subtitle or “forced subtitle” which can be encoded permanently within the video itself. If the hardcode subtitle has been added to the MP4 video, then the video would be played with the subtitle presented no matter which media player you are adopting. Simply speaking, if the hardcode subtitle has been imported, then users would not be able to turn on or off the subtitles during the playback because the hardcode subtitle has been a part of the MP4 video which is burned-in. Different from external subtitles or embedded subtitles hardcode subtitles would not have any further requirements for the subtitle plugins and the MP4 video with the hardcode subtitles would be played on a computer, mobile phones and TVs and so on.

How to encode subtitles to MP4? Before solving the problem on how to add subtitles to MP4 file, you should seek help from a third-party video editing program. VideoProc is a simple and practical, powerful video processing software, it is an advanced version of WinX HD Video Converter Deluxe, a higher level of functionality. The software integrates functions such as video transcoding, video compression, (YouTube) video download, and video editing as well as hardcode subtitle adding. It is an excellent solution for you to manage different multi-track, SD, HD, 4K videos on Windows. At the same time, VideoProc also supports Level-3 hardware acceleration performance. With Intel QSV, NVIDIA CUDA / NVENC and AMD chip acceleration units, it can quickly perform various video operations at 64 times the speed of real-time playback! Now, let’s take a look at the detailed steps on how to add subtitle track to MP4.

Step 1.

Install VideoProc on your computer and run VideoProc then. Enter the main interface of VideoProc and choose the “Video” option.

Step 2.

Click the +Video button to load your MP4 video file. Then you can locate the “Codec Option” menu to add subtitles which would lead users to edit the subtitles. which you plan to add subtitles.

Step 3.

Choose “Edit Video” >> “Subtitle” where you can see two options including “Add Subtitle File” and “Search Subtitle File”. “Add Subtitle File” enables you to add your current subtitle file, “Search Subtitle File” enables you to search the proper subtitle over the Internet.

Step 4.

Adjust subtitles parameters. Here, you can click on the “Enabled” button and adjust the “Position” number to confirm the exact spots of the subtitles you would like to appear and the font. After all settings are done, click the Done button.

Step 5.

Set the output path route. Here users can check the Hardware Acceleration to shorten the processing period. Confirm the saving route and finally click “RUN” button to start.

Once the subtitles have been added to the MP4 video, it would be burned in the video then. In such a way, the hardcode subtitle have been imported successfully. Next time, you can play the MP4 videos smoothly on the player with subtitles appearing.