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Wondershare UniConverter

  • Convert MKV to MP4 with subtitle and play on various device easily.
  • Support 1000+ video/audio formats including MKV, MP4, WMV, FLV, MP3, M4A, etc.
  • Edit MKV videos with trimming, cropping, rotating, subtitles, effects, etc.
  • Additional functions including GIF Maker, Fix Media Metadata, Video Compressor, and more.
convert mkv to mp4 with subtitles


1. Play MKV on Device+
  1. 1.1 Top MKV Player
  2. 1.2 Play MKV on Mac
  3. 1.3 Play MKV on Apple TV
  4. 1.4 Play MKV on Samsung TV
  5. 1.5 Play MKV on Sony TV
  6. 1.6 Play MKV on LG TV
  7. 1.7 Play MKV on PS3
  8. 1.8 Play MKV on Xbox One
  9. 1.9 Play MKV on Xbox360
  10. 1.10 Play MKV to iPhone
  11. 1.11 Play MKV to iPad
  12. 1.12 Play MKV on iPod
  13. 1.13 Play MKV on Android Phone
  14. 1.14 Play MKV in VLC
  15. 1.15 Play MKV in Windows Media Player
  16. 1.16 MKV Playback Issues in VLC
2. Convert MKV to Other Format+
  1. 2.1 Convert MKV to MP4
  2. 2.2 Convert MKV to MP4 on Mac
  3. 2.3 Convert MKV to MP4 Online
  4. 2.4 Convert MKV to MP3
  5. 2.5 Convert MKV to Audio
  6. 2.6 Convert MKV to WMV
  7. 2.7 Convert MKV to M4V
  8. 2.8 Convert MKV to AVI
  9. 2.9 Convert MKV to AVI Online
  10. 2.10 Convert MKV to FLV
  11. 2.11 Convert MKV to DVD
  12. 2.12 Convert MKV to MOV
  13. 2.13 Convert MKV to iTunes
  14. 2.14 MKV to MOV Converter Online
  15. 2.15 Convert MKV to VOB
  16. 2.16 Convert MKV to DivX
  17. 2.17 Convert MKV to MPEG
  18. 2.18 Convert MKV to MPEG2
  19. 2.19 Convert MKV to MPEG4
  20. 2.20 Convert MKV to XviD
  21. 2.21 Convert MKV to 3GP
  22. 2.22 Convert MKV to M2TS
  23. 2.23 Convert MKV to H264
  24. 2.24 Convert MKV to TS
  25. 2.25 Convert MKV to VCD
  26. 2.26 Convert MKV to AC3
  27. 2.27 Burn MKV to DVD
  28. 2.28 Burn MKV to Blu-ray
  29. 2.29 Convert MKV to SWF
  30. 2.30 Convert MKV to MP4 with Subtitle
  31. 2.31 Convert MKV to WAV
  32. 2.32 Convert MKV to MPG
  33. 2.33 Convert MKV to ISO
3. Convert Other Format to MKV+
  1. 3.1 Convert MP4 to MKV
  2. 3.2 Convert MP4 to MKV on Mac
  3. 3.3 Convert MP4 to MKV Online
  4. 3.4 Convert M4V to MKV
  5. 3.5 Convert WMV to MKV
  6. 3.6 Convert MOV to MKV
  7. 3.7 Convert DVD to MKV
  8. 3.8 Convert M2TS to MKV
  9. 3.9 Convert AVI to MKV
  10. 3.10 Convert Bluray to MKV
  11. 3.11 Convert FLV to MKV
  12. 3.12 Convert AVCHD to MKV
  13. 3.13 Convert OGM to MKV
  14. 3.14 Convert MTS to MKV
  15. 3.15 Convert WTV to MKV
  16. 3.16 Convert VOB to MKV
  17. 3.17 Convert RMVB to MKV
  18. 3.18 YouTube to MKV
  19. 3.19 Convert WebM to MKV
4. Edit MKV & Other Tips+
  1. 4.1 Extract Subtitles from MKV
  2. 4.2 Add Substitles to MKV
  3. 4.3 Add SRT to MKV
  4. 4.4 Compress MKV Video
  5. 4.5 Reduce MKV File Size
  6. 4.6 Cut MKV Files
  7. 4.7 Edit MKV Metadata
  8. 4.8 MKV No Sound
  9. 4.9 MKV Video Player for Android
  10. 4.10 MKV Converter for Mac
  11. 4.11 Free MKV Converter
  12. 4.12 MKV Player Mac
  13. 4.13 2D to 3D MKV Converter
  14. 4.14 Remux MKV
  15. 4.15 MKV Encoder
  16. 4.16 Convert MKV to FCP Mac
  17. 4.17 Stream MKV to TV with Chromecast
  18. 4.18 Import MKV to iMovie
  19. 4.19 Windows DVD Maker MKV
  20. 4.20 Convert MKV to MP4 with HandBrake Alternative

Top 4 Methods to Convert MKV to MP4 with Subtitles

by Kayla Morrison • 2020-09-17 11:44:42 • Proven solutions

"Today I ran into a problem: when playing MKV files in my Phone, subtitles always disappear. This makes subtitles unreadable?"

-- A question from VideoHelp Forum

Are you tired of not being able to play subtitles of your movies and television shows on your smartphone? Well, one of the most common reasons this happens is because the movie/television series you’ve downloaded are in the MKV format, which is often not supported by smartphones and other electronic gadgets.

So, what’s the solution to this problem? Well, the best way to make sure that this doesn’t happen is to get the best online MKV to MP4 with subtitles converter!

Part 1. How to Free Convert MKV to MP4 with Subtitles?

Now we will learn how to change MKV to MP4 with multiple subtitles. We will first learn how to convert MKV to MP4 with subtitles completely free. For this, we will see amazing software. Both of these software offers excellent conversion tools and features.

1. Using Free Video Converter

Head over to our website at and then download Free Video Converter on your system. It has a simple UI, and it's very user-friendly.

Step 1: Launch the Application and click on the central Folder icon or drag and drop your file to open it inside the software.

Step 2: When your file has opened up, click on Target, and then select the MP4 format. After this, click on the Add Subtitles on the drop-down. This will open a file explorer where you will select your subtitles file.

Step 3: Click on the Convert button to begin the conversion. When the conversion finishes, your files will appear in the Converted tab from where you can view it.

convert MKV to MP4 with subtitles by Wondershare Free Video Converter

2. Using HandBrake

This is another great tool. It offers a great variety of video processing features for free.

Step 1: To begin head over to HandBrake's website at, then launch the Application and then either click on File from the left side menu or simply drag and drop your file onto the application.

Step 2: Several details of the video will be shown. Head over to the Subtitles tab and click on Add Subtitles to add your subtitles file. To being conversion, click on Start Encode on the top bar.

convert MKV to MP4 with subtitle by HandBrake

Part 2. How to Convert MKV to MP4 with Subtitles Online?

You can also convert MKV to MP4 with subtitles if subtitles are already included inside your MKV file. For those people, we have an excellent software named Online Uniconverter that offers a variety of conversion formats and is very easy to use.

Online MKV to MP4 with subtitle Uniconverter

Step 1: First, head over to our website at Here you see a purple + button on the left side of the screen. Now either you can drag and drop the file over here or click on this button to upload the file.

Step 2: Modify the format in the To: dropdown menu to MPG.

Step 3: You can add more files for batch conversion into various different formats by clicking on the Add More Files button on the top. Batch conversion into different formats is a unique feature of Online Uniconverter. Click on the Convert button to begin the process.

convert MKV to MP4 with subtitle by Online Uniconverter

Part 3. Best Video Converter to Convert MKV to MP4 with Subtitles

What if you want to add multiple subtitles? What if you want to change the color of the subtitles and font style and size? If such questions come to your mind, then what you require is an advanced video converter. And the best video converter on the market is Wondershare UniConverter as it has the most advanced features which no other converter in the market possess.

video converter logo Wondershare UniConverter - MKV to MP4 with Subtitle Converter for Windows/Mac

wondershare uniconverter
  • Convert MKV to MP4, MOV, FLV, AVI, WMV, and other 1000+ formats with easy steps on Windows/Mac.
  • Burn and customize MKV files to DVD with free DVD menu templates.
  • Convert MKV files in batch with super fast speed and no quality loss.
  • Download or record videos from YouTube and other 10,000+ video sharing sites.
  • Edit MKV videos with trimming, cutting, cropping, adding subtitles, applying effects, etc.
  • Versatile toolbox combines fix video metadata, GIF maker, video compress, screen recorder, and others.
  • Supported OS: Windows 10/8/7/XP/Vista, Mac OS 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6.
security download Security Verified, 5,481,347 people have downloaded it.

How to convert MKV to MP4 with subtitle in Wondershare UniConverter:

Step 1 Import MKV files to Uniconverter.

You can add as many files as you like by either clicking in the middle of the application and using the add files button to fetch your files. Or simply, you can use your mouse to drag and drop the MKV files onto the application.

convert mkv to mp4 with subtitle - add files

Step 2 Add subtitles and Edit Subtitles.

Click on the Subtitle drop-down list and then click on the Add button. This will open a new File Explorer pop-up. Locate your subtitles file in your system and click on it.

convert mkv to mp4 with subtitle - add subtitle

You can also edit the settings of the subtitle by clicking on the Edit button. Another pop up will open. Here you can adjust various parameters to adjust different aspects of your subtitle. For example, you can adjust the font family, font size, transparency, among many other features. Click OK to confirm changes. The video will also play side by side to give you real-time feedback.

convert mkv to mp4 with subtitle - edit subtitle

Step 3 Select MP4 Video Format.

After this, select the video by clicking the Output Format on the bottom left corner. Here select the MP4 and then select the video quality. Now finally click on the Convert to begin conversion of a single file or the Start All to do batch conversion. This is all for this guide on how to convert MKV to MP4.

convert mkv to mp4 with subtitle - start conversion

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Kayla Morrison

Kayla Morrison

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Resource > MKV Solutions > Top 4 Methods to Convert MKV to MP4 with Subtitles