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Posted by Donna Peng - Contact Author

How to Add Subtitles/Captions to MP4 Videos on PC/Mac

How to add SRT, ASS, SSA subtitles or captions to MP4 videos movies? This tutorial provides you detailed guide.

The foreign films or foreign YouTube videos can't be easily understood if there are no subtitle tracks. And for those who have hearing impairments, they can't follow the story when open captions or closed captions are absent from the MP4 video or movie. To help you catch up with the movie plots, here shares with you the most simple yet effective way to embed subtitles/captions to MP4 video or movie.

How to Softcode SRT Subtitles/Captions to MP4 without Re-encoding

Try WinX HD Video Converter Deluxe ! Let you merge (SRT, ASS, SSA) subtitles with MP4 without re-encoding. Thus, video quality can be kept without any loss and the whole process will be done within seconds. It also aids you to convert any video to MP4, H264, HEVC, etc.

Where to Find and Download Subtitles for MP4 Movies

Normally you have two methods to download desired subtitles: One is download movie subtitles from subtitle downloading sites which provide numerous subtitles in different languages, such as,,, etc; The other is to download subtitles for MP4 via a subtitle downloader app like Sublight.

WinX - Best Way to Add Subtitles to MP4 Media without Re-encoding

Why we put WinX HD Video Converter Deluxe at the top of the priority list? Reasons are:

1. Self-explanatory interface guides you to combine subtitles with MP4 media with only 3 clicks: load video > click Edit to merge srt/ass/ssa subtitles with MP4 > tap RUN.

2. Softcode subtitles/captions to MP4 without re-encoding, ZERO quality loss and 5X faster speed (only seconds needed).

3. Support add subtitles to MKV, MOV, AVI, FLV, WMV, AVCHD, etc. any other format files.

4. Convert any videos (4K/8K) to MP4, H264, H265, MOV, MKV, iPhone iPad, Android, Xbox, PS4/5, etc. with 420+ built-in profiles.

[Tutorial] How to Add Subtitles to MP4 Videos without Decoding/Re-encoding

Free download and install WinX HD Video Converter Deluxe on your PC or download its mac version on Mac, and then follow the 3 simple steps to hardcode subtitles to MP4. Here take adding SRT to MP4 for example.

Step 1: Load the MP4 video into the MP4 subtitle adder program.
Run this subtitle to video merger and click "+Video" button on the top-left of the tool-bar or tap the big "+" icon in the middle interface to import the source MP4 video/movie without subtitles. Batch converting is accessible.

Load MP4 files
Load MP4 files

Step 2: Add external subtitles to MP4 video.
After setting MP4 as the output format, right click "Edit" button to step into the video editing window. Tap the "Subtitle" icon and tick "Enable Subtitle" option and choose "Extra", then add the external SRT subtitle file to the MP4 video by clicking "Add" button. All settled, click "Done". You could preview the MP4 video with added subtitles.

Add Subtitles to MP4
Add Subtitles to MP4

Step 3: Save the MP4 video with subtitles.
Optionally set a destination folder to save the MP4 video with added captions. Hit "RUN" to start adding subtitles to MP4 videos movies. This smart MP4 subtitle adder will do the rest for you. The same also applies to add open caption or closed caption to MP4.

External Knowledge

What is the difference between subtitles and captions?

Subtitles usually refer to translations for audiences whose mother language is not the one in the movie or video. Captions are in the language of the medium instead of a translation. Beyond that, captions are designed to aid audiences with hearing impairments while subtitles are mainly for foreign films. Check to know more if you're interested in this.

Still have problem about adding subtitles to MP4 videos? Please feel free to Email Us >>


author - Donna Peng

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Donna Peng's fascination with multimedia began at an early age - shortly after she licked the physical disc and then she's been obsessed ever since. Her decade-long career at Digiarty after the graduation has seen her unmatched expertise in the field of DVD, digital video, software and anything related to home theatre. She is currently fascinated with photography.

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