Insert Subtitles to MP4 Videos without Encoding

Q: "I've a video library with .mp4 files and external .srt files. I'm satisfied with the audio and video quality of these very files, which makes me reluctant to re-encode any video just to add subtitles to these mp4 files. Is there any effective ways? Thanks in advance!"

You must be upset to watch some mp4 videos in a different lauguage without subtitles, and can't catch up the video content. So, if you can insert some external subtitles to these mp4 videos by your own, how wonderful? Luckily, this tutorial will share some hints and mainly cover two pages on: Download external SRT subtitles or create your own subtitles; Insert subtitles to MP4 videos without encoding.

Part One: Download External SRT subtitles or Create Your Own Subtitles

If you don't have any .srt subtitles or would like to add your own words to the .srt subtitles displayed on screen. You can follow below two parts to get it.

Download .srt subtitles: You can put "movie title" + "your preferred language" + "subtitles" as the search strings and select the subtitle file saved in .srt for an effective SRT subtitle file searching. Alternatively, finding the needed subtitles in .srt format from those popular subtitle download sites like is also a practical way.

Create your own .srt file: Here we take Notepad as an example. Just open Notepad, create the subtitles you like in the text editor, click menu File->Save As; change the subtitle file name based on your name of video file and save it in .srt format.

Tips: The SRT subtitles need to contain the following parts while creating subtitles:
1. The number showing which subtitle it is in the sequence.
2. The time that the subtitle should appear and disappear on the screen.
3. The subtitle itself.
4. A blank line indicating the begin of a new subtitle.
Editor Notes: If you have saved SRT subtitles you need, just skip this part and turn to part two to insert your subtitles to mp4 videos.

Part Two: Insert Subtitles to MP4 Videos without Encoding

After you have saved the external subtitles on your PC's hard drive, let's begin our main task. To save your time, Brorsoft Video Converter Ultimate is highly recommended to insert/add external subtitles (*.srt, *.ass, *.ssa) to MP4 without encoding. Besides, you can also add ( *.srt, *.ass, *.ssa) subtitles to AVI, MKV, WMV, 3GP, etc videos effortlessly. For Mac users, you can turn to Brorsoft iMedia Converter for Mac. Now download the free trial program and follow below easy steps to finish our task.
video-converter-trail imedia-converter-for-mac-trail

Step 1. Load MP4 Videos

Install and launch the best Video Converter, simply click “Load File” to import your MP4 Videos to the program.

Step 2. Insert subtitles to MP4 Videos

Click on "Edit" button, the video editor will pop up. Tap "Subtitle" option and check the "Enable" icon. Then, by clicking on "Browse" to import your *.srt, *.ass, *.ssa subtitles you've downloaded. Click OK to save the settings.
Tip: You can also add watermark, apply effects, and crop video in the above video editing window.

Step 3. Start Adding Subtitles

With all settings, click Convert button to insert subtitles to your videos.
Once finished, you can click Open button to quickly locate the converted videos.
Now, feel free to share and enjoy the mp4 videos with your preferred subtitles.

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