Add your MKV file
Drop one or more .mkv files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Pulling the soundtrack out of a .mkv video into .ts audio keeps what you can hear and drops the picture entirely. Free, private, and validated — the file never leaves your browser.
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.Pulling the soundtrack out of a .mkv video into .ts audio keeps what you can hear and drops the picture entirely. An .mkv file uses the Matroska container, an open format designed to hold an unlimited number of video, audio, and subtitle tracks in one file. Collectors of high-quality rips and archival copies favor .mkv because it keeps every language track, chapter marker, and font attachment together.
A .ts file is an MPEG transport stream, the packetized format built to carry television through unreliable channels like antennas, satellites, and cable. DVR recordings, IPTV captures, and HLS streaming segments all use .ts, making it one of the most common raw broadcast formats people encounter. For this route the practical draw is corruption costs a fraction of a second, not the whole file and trivially concatenable without remuxing — balanced against packet overhead runs several percent above an equivalent MP4, which is worth knowing before you commit a large batch.
The usual reason to take .ts audio out of a .mkv file is that only the sound matters — a talk, interview, song, or podcast segment. Keeping the video stream would waste storage, and a dedicated audio file is easier to trim, tag, and play. On the source side, safari and iOS refuse the container outright; on the target side, the payoff is corruption costs a fraction of a second, not the whole file, which is exactly what you want for saving recordings from DVRs and set-top boxes.
| Aspect | Matroska video (.mkv) | MPEG transport stream (.ts) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Container — quality depends on the codecs and settings inside |
| How it stores data | built on EBML, a binary XML-like structure that lets the container gain features without breaking older parsers | fixed 188-byte packets with sync bytes and continuity counters allow receivers to detect and skip corrupted data |
| Strongest at | archiving discs while preserving every audio track and subtitle stream | saving recordings from DVRs and set-top boxes |
| Weak spot | safari and iOS refuse the container outright | packet overhead runs several percent above an equivalent MP4 |
| Metadata | matroska tags cover title, cast, and arbitrary key-value pairs, and the container can embed cover art and other files as attachments | broadcast service tables (SDT/EIT) can carry channel names and program-guide data, but there is no field for user tagging |
Drop one or more .mkv files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Select .ts in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if TS is selectable, the route is real and validated.
Press Convert. A WebAssembly FFmpeg build demuxes the audio track and re-encodes it locally; the video stream is simply discarded.
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid TS file. Outputs keep the original filename with the .ts extension.
Since mkv is container-oriented and ts is container-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .ts itself requires.
Yes — the .mkv file is processed inside your browser tab and never uploaded. A WebAssembly FFmpeg build demuxes the audio track and re-encodes it locally; the video stream is simply discarded. Close the tab and the file is gone from memory.
VLC, ffmpeg, and every broadcast tool read .ts natively, and smart TVs often play recordings made by their own tuners. Browsers only consume transport streams indirectly through JavaScript HLS players, so standalone .ts files need conversion for the web.
Much smaller — the video stream is usually 80–95% of a .mkv file's weight, and it is discarded entirely. The remaining audio is re-encoded at the bitrate implied by your quality setting.
This converter strips container metadata deliberately (the FFmpeg command runs with metadata mapping disabled) so exported files do not leak recording details. In the source, matroska tags cover title, cast, and arbitrary key-value pairs, and the container can embed cover art and other files as attachments; none of it is transmitted anywhere because the file never leaves your browser.
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .mkv → .ts → .mkv is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.