Click the "Select File" button above, and choose your SUP file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.
Convert SUP to another file type
The converter easily converts your SUP subtitle files to various formats - free and online. No CyberLink PowerDVD or other Video software needed.
SUP to MMF
SUP to MKA
SUP to AIFF
SUP to AC3
SUP to HEVC
SUP to H263
SUP to MJPEG
SUP to SPDIF
SUP to OGA
SUP to APNG
SUP to FLAC
SUP to MP2
Convert a file to SUP
To convert other file formats to the "Bitmap Subtitle File" file type, you need software like CyberLink PowerDVD or a similar tool.
About SUP files
The .SUP file extension primarily represents a Blu-ray or DVD Subtitle file. Unlike standard text subtitles, these are bitmap-based image sequences extracted directly from disc streams. A secondary use is for Ubiquiti Device Support Bundle files, which are essentially GZIP archives containing system logs. You can open subtitle files with media players like VLC media player or CyberLink PowerDVD. Ubiquiti support files are used in the UniFi Controller ecosystem. Users frequently need to convert .SUP subtitle files because they are highly inflexible. Being image-based means they cannot be edited in a standard text editor, they lack native support in HTML5 web video players, and file sizes often exceed 50MB. Furthermore, they require dedicated Optical Character Recognition (OCR) to extract the text. For web video integration or simple text editing, you must convert these files to text-based formats like SRT or VTT. For advanced styling and positioning, convert to ASS. If you have a Ubiquiti file, converting or renaming it to GZ allows you to extract the raw log files. Drag and drop your file here to analyze and convert it - free, online, and without installing software.
Use Convert.Guru to open and convert your SUP file.
If you want to convert SUP file to SRT, SUB, IDX, JS, TS, PY, JAVA, CPP, C, CS, PHP or RB, you can use CyberLink PowerDVD or similar software from the "Blu-ray Bitmap Subtitles" category. In the File menu, look for Save As… or Export….
To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to SUP, try CyberLink PowerDVD or another comparable tool in the "Blu-ray Bitmap Subtitles" category.
The SUP Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our SUP converter.