Convert.Guru

SUB Converter

Convert SUB files online for free


Drop or upload your .SUB file

How to convert your SUB file

  1. Click Select File above, and choose your SUB file.
  2. You'll see a preview.
  3. Click the "Convert file to..." button to save your file in the format you want.


Convert SUB to another file type

The converter easily converts your SUB file to various formats—free and online. No Windows or extra software needed.

  • SUB to SRT
  • SUB to TXT
  • SUB to SUP
  • SUB to TEXT
  • SUB to ISO
  • SUB to IMG
  • SUB to DMG
  • SUB to VHD
  • SUB to VMDK
  • SUB to VDI
  • SUB to HDD
  • SUB to QCOW

Convert a file to SUB

The converter also works in reverse, allowing you to convert your file into the SUB file type—in the best quality.

  • VFD to SUB
  • DMG to SUB
  • OVA to SUB
  • IMA to SUB
  • VBOX to SUB
  • ADF to SUB
  • PVS to SUB
  • VHD to SUB
  • OVF to SUB
  • ISO to SUB
  • DSK to SUB
  • IMG to SUB

About SUB files

SUB files, primarily known as subtitle files, are commonly used in video playback to provide synchronized text overlays of spoken dialogue. While they are essential for accessibility and multilingual support, converting SUB files can present challenges due to format compatibility issues. SUB files can have extensions like .sub, .idx, or .mks, and are often used in conjunction with video files.

When converting SUB files, it's important to consider the target format. Common conversion targets include .srt (SubRip Subtitle), .vtt (WebVTT), .ssa (SubStation Alpha), and .ass (Advanced SubStation Alpha). These formats differ in their support for styling, timing precision, and compatibility with different media players.

Software like VLC Media Player and Aegisub can be used for conversion by exporting subtitles to different formats. However, these tools may require a learning curve and manual adjustments to ensure the converted subtitles align correctly with the video.

Despite the availability of software solutions, converting SUB files can sometimes be cumbersome due to the intricacies of subtitle timing and format support. Hence, using a reliable service like Convert.Guru can simplify this process. Just drag-and-drop your SUB files onto the webpage, and convert them easily to your desired format. This approach eliminates the technical barriers and ensures that your subtitles maintain their accuracy and synchronization.

In conclusion, while SUB files are vital for video accessibility, their conversion can be problematic. For a seamless and hassle-free experience, leverage Convert.Guru for all your subtitle conversion needs.


The SUB Converter Story

The history of Convert.Guru began more than 25 years ago in California, when Tom Simondi published the most comprehensive database of file formats on his website. Before that, Tom had worked on Space Shuttle development at the Air Force Systems Command’s Space Division in Los Angeles. He is known as one of the top programmers of the late 1980s.

When Microsoft integrated Tom’s Filext database into Windows XP, it became the leading platform for analyzing and processing file types and formats.

Today, we use the latest technologies to analyze, process, and convert one of the world's largest collections of file formats. We are committed to developing the best SUB converter by continuously improving quality, usability, and reliability.

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