If you want to edit subtitles of your videos or movies, you need to use a subtitle editor. And today, I will review and introduce you to the top 5 open source subtitle editors to use on Ubuntu or on a Linux distribution. These programs have many features and advantages ranging from editing subtitles colors to synchronizing to voice in a video.

1- Gnome Subtitles

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Gnome Subtitles is an amazing subtitle editor for the GNOME interface and supports the most common tasks related to text including subtitle editing, translation support, and voice synchronization.

Some supported subtitle formats are: Advanced Substation Alpha, FAB Subtitler, MicroDVD, Mplayer 1/2, MPSub, SubRip, SubViewer 1 / 2.

• To install Gnome Subtitles on Ubuntu, open the Ubuntu Software Center, search for gnome subtitles program, and then click Install; or you can execute the following command in the terminal:

sudo apt-get install gnome-subtitles

2- Subtitle Editor

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This program is a powerful GTK+2 tool used for translating, transforming, editing, and refining current subtitles on a video, as well as editing new subtitles for GNU/Linux/*BSD.

Subtitle Editor has many impressive features such as showing sound waves to make synchronizing subtitles to voice easier.

• To install the Ubuntu Subtitle Editor, open the Ubuntu Software Center, search for subtitle editor program, and then click Install; or you can just execute the following command in the Terminal:

sudo apt-get install subtitleeditor

3- Aegisub

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Aegisub program is a cross-platform tool used to create and edit subtitles on a video or a movie, and its free and open source. Aegisub makes it easy to time subtitles to audio with high accuracy and speed.

This programs also offers many features and tools to customize the subtitles, including he ability to preview a video during subtitles customization process in real-time.

• To install Aegisub on Ubuntu Open the Ubuntu Software Center and search for aegisub program and then click Install; or you can paste the following command into the Terminal and execute it:

sudo apt-get install aegisub

4- Gaupol

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Gaupol is a text editor for various subtitles files, and it supports several subtitle file formats. This amazing program has the ability to create subtitles, modify them, and edit timing subtitles to match video.

The GUI of the program has been optimized and improved to be suitable to end users, taking into account batching the processing of several documents, and accurate translation.

• To install Gaupol on Ubuntu, open the Ubuntu Software Center, search for gaupol pogram, and then click Install; or you can paste the following command into the Terminal and execute it:

sudo apt-get install gaupol

5- Subtitle Composer

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Subtitle Composer is a powerful GUI program written in QT designed to be a complete and unique subtitle editor for the KDE desktop environment.

Subtitle Composer allows users to load and save subtitle files in their most common formats SRT, SUB, or SSA, and it supports multiple encodings. In addition to an integrated video player to preview subtitles, Subtitle Composer offers other features like removing and inserting lines, formatting texts, adjust timing, spell checking, and more.

• Knowing that Subtitle Composer is a graphical application, you can download it from the Ubuntu Software Center, and then install it like any other application on Ubuntu.

Sources:
http://gnome-subtitles.sourceforge.net/about
https://launchpad.net/subtitleeditor
https://en.wikipedia.org/wiki/Aegisub
https://otsaloma.io/gaupol/
https://sourceforge.net/projects/subcomposer/

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Posted on Utopian.io - Rewarding Open Source Contributors

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