BDSup2Sub

5.1.2 Subtitle converter for Windows

Fernando Ortega

Free software that converts Blu-ray SUP or DVD SUB subtitle files to the more widely supported SRT format.

Convert and tweak bitmap subtitle streams - Screenshot of BDSup2Sub
Convert subtitle streams - Screenshot of BDSup2Sub
User interface - Screenshot of BDSup2Sub
BDSup2Sub screenshot
BDSup2Sub screenshot

Lightweight software utility used to convert subtitle streams including BMP but also a variety of other formats.

BDSup2Sub is a free and open source sup to sub converter app and audio/video editor developed by 0xdeadbeef for Windows. It's light on system resources, attractive, straightforward, reliable and advanced.

The download has been tested by an editor here on a PC and a list of features has been compiled; see below. We've also created some screenshots of BDSup2Sub to illustrate the user interface and show the overall usage and features of this sup to sub converting program.

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Coverts bitmap subtitles among other formats

BDSup2Sub is a tool I wrote initially to convert captions demuxed from a Blu-Ray transport stream (M2TS) into the DVD VobSub format (SUB/IDX) used by many DVD authoring tools - hence the name. Many more features were added over time as was support for other formats. So in the meantime the name seems a little inappropriate. In a nutshell, it's a subtitle conversion tool (for image based formats) with scaling capabilities and some other nice features.

Features of BDSup2Sub

  • Adjustable frames: Adjust subtitle frames for special effects.
  • Auto-detection: Automatically detects and loads subtitles.
  • Auto-syncing: Automatically syncs and adjusts subtitles.
  • Color adjustment: Change subtitle colors and transparency.
  • Customizable: Fully customizable subtitle settings.
  • Font adjustment: Change subtitle font size and type.
  • Fuzzy matching: Matches subtitles to video frames.
  • Multi-angle support: Supports multi-angle and multi-version subtitles.
  • Multi-language support: Supports subtitles in multiple languages.
  • OCR: Optical Character Recognition to recognize text from images.
  • Preview: Preview subtitles before saving.
  • Quick search: Quickly search for subtitles online.
  • Subtitle conversion: Converts SUP/IFO subtitle files into SUB/IDX.
  • Subtitle editing: Edits existing SUB/IDX subtitle files.
  • Timing adjustment: Resyncs subtitles to fit the audio.

Compatibility and License

As BDSup2Sub is released under the Apache License v2.0 for Windows from audio and video editors, you are not required to pay a penny for this software. In fact, you're free to make copies, distribute it and for those that are technically inclined, view and edit the source code. Feel free to share it with friends.

What version of Windows can BDSup2Sub run on?

BDSup2Sub can be used on a computer running Windows 11 or Windows 10. Previous versions of the OS shouldn't be a problem with Windows 8 and Windows 7 having been tested. It runs on both 32-bit and 64-bit systems with no dedicated 64-bit download provided.

Filed under:
  1. BDSup2Sub Download
  2. Free Audio and Video Editors
  3. Open source and GPL software
  4. Sup To Sub Converting Software
BDSup2Sub has been picked by our editors as good software.
BDSup2Sub has been tested for viruses and malware.
We have tested BDSup2Sub 5.1.2 against malware with several different programs. We certify that this program is clean of viruses, malware and trojans.