tsMuxeR 2.7.1

tsMuxeR handles lossless muxing into TS, M2TS, and MKV containers without re-encoding - preserving original quality while producing output ready for Blu-ray disc authoring, IPTV broadcasting, or direct playback on media servers and hardware players.

Lossless Muxing vs. Re-encoding

tsMuxeR works by reading elementary streams from multiple sources and combining them into a single container.

This process - called muxing - is fundamentally different from video conversion.

Tools like HandBrake or Shutter Encoder re-encode your video, which takes time and can reduce quality. tsMuxeR simply repackages the existing streams, finishing in seconds rather than hours.

Supported Video, Audio, and Subtitle Formats

The tool supports all major video codecs you are likely to encounter: H.264/AVC, H.265/HEVC, H.266/VVC (alpha release), AV1, Microsoft VC-1, and MPEG-2.

Audio codec coverage includes AAC, AC3/E-AC3 (Dolby Digital Plus), Dolby TrueHD (with AC3 core), DTS/DTS-HD, MPEG audio layers 1/2/3, and LPCM.

Subtitle support covers PGS (Blu-ray presentation graphics) and SRT text-based subtitles - and tsMuxeR can convert SRT subtitles to PGS format with full HTML-style tag support for font, color, and size customization.

4K UHD and Blu-ray Authoring

For Blu-ray enthusiasts, tsMuxeR delivers features that most muxing tools lack. Full 3D Blu-ray support, UHD output with HDR10, HDR10+, and Dolby Vision metadata preservation mean your 4K rips maintain their premium quality through the entire workflow.

You can author compliant Blu-ray disc structures or AVCHD folders directly from tsMuxeR's output - a capability that pairs naturally with disc ripping tools like MakeMKV at the start of the pipeline and burning utilities at the end.

Stream Management and Editing

Beyond basic muxing, tsMuxeR offers practical features for managing your streams. Join multiple source files into a single output, split output files by size for storage constraints, trim source files to extract specific segments, and shift audio tracks or subtitles in time to fix sync issues.

The tool detects audio delay automatically for TS, M2TS, MPG, VOB, and EVO sources - saving you from manual sync troubleshooting.

You can also extract DTS core from DTS-HD streams and AC3 core from TrueHD, which is useful when targeting players that only support base-layer audio. LPCM-to-WAV conversion works in both directions for users who need to work with uncompressed audio between muxing steps.

For H.264 content, tsMuxeR provides granular control over SEI, SPS/PPS elements, NAL unit delimiter insertion, and level adjustment during the muxing process.

Complementary Tools for Your Muxing Workflow

If you need to verify your source files before muxing, MediaInfo reveals exact codec parameters, bitrates, and stream details so you know exactly what you are working with.

After muxing, test playback with VLC Media Player or install the K-Lite Codec Pack for system-wide format support. For MKV-specific container work - adding subtitles, removing unwanted audio tracks, or reorganizing chapters - MKVToolNix complements tsMuxeR's capabilities perfectly.

Users building complete Blu-ray backups may also find BD Rebuilder useful for compression workflows, while LosslessCut handles quick lossless trimming when you just need to extract a clip without full muxing control.

Simple Interface, Cross-Platform Support

The interface keeps things straightforward. Select your input files, choose the output format (TS, M2TS, MKV, or Blu-ray disc structure), pick a destination folder, and mux.

Beginners can produce working output with minimal configuration, while advanced users access detailed stream parameters, FPS adjustment, and Blu-ray playlist (MPLS) file handling through the same interface.

tsMuxeR runs on Windows, Linux, and macOS with a unified cross-platform GUI built on Qt6.

What's New in tsMuxeR 2.7.1:

• Fixed file dialogs not appearing on macOS
• Fixed browse button for output folder passing wrong parameter to file dialog
• macOS now ships as a Universal binary (Intel + Apple Silicon)
• Linux release includes the GUI application
• Dropped Windows XP support

Download tsMuxeR 2.7.1 - it is completely free, open-source software licensed under Apache 2.0. No registration, no trial limitations, no hidden costs.