The easiest and fastest way to permanently burn hardcoded subtitles to your movies and tv-shows.

With Submerge you can easily add hardcoded subtitles to your movies and tv-shows. The subtitled movie will play on almost anything, like your computer, smartphone, portable device or game console. Submerge supports many text-based subtitle formats as input and you can export the subtitled movie for the most common devices in just one click. Now with a batch exporting feature as well. Submerge also has a built-in subtitle search tool that makes finding and downloading the right subtitles a breeze. It also has a fullscreen player built-in, so you can watch the subtitled movie directly within Submerge.

Main features

- Add hardcoded subtitles to almost any video file without the need for extra system extensions or plug-ins.
- Automatically loads and displays embedded subtitles or subtitles from external files.
- Support for many subtitle formats like srt, sub, itt, stl ass/ssa and vtt.
- Supports styling tags in subtitle files like italic, bold underlined and font color.
- Supports cue settings in WebVTT files to handle the position and alignment of the subtitles.
- Fully customizable subtitle display (font, size, color, shadows, etc).
- Automatically finds metadata online to tag your movie.
- Detailed movie inspector for all those nitty gritty details.
- Many export presets built-in for poplar devices.
- Batch export queue built right in.
- FFmpeg encoding for fastest possible exports.
- Force aspect ratio to 16:9, 4:3 or 3:2 to use your monitor space more efficiently.
- Fullscreen player built-in (of course).
- Playback with hardware decoding on the GPU for H.264 and H.265 (HEVC) video tracks.
- Support for macOS Catalina and Big Sur.
- 64-bit native.

NOTE! Submerge cannot add hardcoded subtitles to movies or tv-shows purchased or rented in the iTunes store due to DRM protection.

What's new in Submerge 3

- Re-written from the ground up using modern OS X technologies.
- Doesn't depend on QuickTime.
- No need for extra system extensions or plug-ins to open and add subtitles to your movies.
- 64-bit native.
- Batch export queue.
- Improved the built-in subtitle search engine. Really easy to use.
- Metadata tagging for the TV-app and iDevices. Artwork as well.
- Support for more than two subtitles lines and smarter wrapping.
- Optional "Title Safe Area" for old TV sets and professionals.

What’s New

Version 3.7.6

- FFmpeg version 4.5.
- Better H.264 export performance.

Ratings and Reviews

3.6 out of 5
5 Ratings

5 Ratings

FLX Thom ,

Great for Addressing Accessibility Needs

I was seeking a way to embed captions in a video for users and students that are hearing impaired. Many of the places we securely post instructional videos still do not allow for the use of a VTT, TTML or SRT file. Obviosuly, it's ideal to use a file, since it also provides the ability to assist the visually imparied. Sadly, some tools still do not allow for it. In these cases, having the ability to embed the caption in the video itself is incredibly helpful. When using an MP4 and importing a VTT formatted file, it works flawlessly. The exporting fucntion as included has virtually all of the formats we need and can use. I would caution folks to be sure they have properly formatted files. Having files that have flaws (which is common if you have to do it manually) can cause issues no matter what tool you use.

Cherent Ranch ,

An important program for your foreign movie viewing arsenal.

This program does everything I need it to. Sometimes it is necessary to visually burn subtitles into the picture. For example if you want to view a film from a player with a thumb drive, the subtitle track cannot be actuated. By burning the subtitles into the frame, you can always be sure they will be there, regardless of how or on what you are viewing the program.

Who said that a subtitle had to be at the bottom of the picture? They are easier to read when they are at the top. (I guess you’ll need to call it a “supertitle”) When viewing, your eyes don’t have to jump up and down as much. This program allows you to put the subtitles anywhere you want.

What was especially helpful was I personally contacted the developer and he was always eager to help — answering me in less than a day.

Rhamiel ,

Too Slow

At first the program did not recognize a .srt file that contained the subtitles, However; I was able to manually direct it to do so… although this was a little confusing at first. I read on the web that the program was “fast” and would take only a “couple of minutes.” Maybe if the video was three seconds long it might take on a “couple of minutes.” But, the movie that I was exporting reported that it would take 2 and 1/2 hours to export. What a waste of money. Avoid. There are free programs out, like Subler, that you can quickly add an .srt file or other subtitle and save the movie… then just turn on subtitles in your app and voila!

Developer Response ,

The .srt file needs to follow the specifications to work. A lot of subtitle files just aren't correctly formatted. The encoding speed is heavily depending on the speed of your Mac and the amount of free RAM. Re-encoding a large movie on an old Mac can potentially take a long time, but Submerge will use all the CPU it can get to do the job as quickly as possible.

App Privacy

The developer, Bitfield AB, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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