Play MKV files on your Chromecast with full support for multiple audio tracks, embedded subtitles (SRT, ASS, SSA), and chapter navigation. No transcoding or conversion needed — direct play, instant start.
LocalCast handles the MKV container natively and delivers the video stream directly to your Chromecast. H.264 and H.265 encoded MKV files play instantly without any processing delay.
Switch between all audio tracks embedded in your MKV file. Original language, dubbed audio, stereo, 5.1 surround — choose the track you want before or during playback.
Full support for SRT, ASS, and SSA subtitles embedded inside MKV files. Select from multiple subtitle tracks, load external files, or auto-download from OpenSubtitles.
Skip the wait. LocalCast extracts compatible streams from the MKV container and sends them directly to your Chromecast. No quality loss, no conversion software, no re-encoding.
Launch LocalCast and browse to your MKV file on your phone, NAS, cloud storage, or SMB share.
Select your preferred audio track and subtitle language from all tracks embedded in the MKV file.
Tap the cast icon, pick your Chromecast, and your MKV file starts playing on the big screen instantly.
All generations & Google TV
Ultra HD streaming
SRT, ASS & OpenSubtitles
Synology, QNAP & more
UPnP device streaming
Every brand supported
Cast to Fire Stick & Cube
Stream to all Roku models
Any source, any format
Cast to Kodi players
Drive, Dropbox & more
Universal casting guide
Chromecast does not natively support the MKV container format. However, LocalCast solves this by handling the MKV container and delivering the video and audio streams directly to your Chromecast. Most MKV files contain H.264 or H.265 video with AAC or AC3 audio, which Chromecast can decode natively — so no transcoding is needed and playback is instant.
Yes. MKV files often contain multiple audio tracks (for example, original language plus a dubbed track, or stereo and 5.1 surround). LocalCast lets you browse and switch between all embedded audio tracks before or during playback. Simply tap the audio track selector and choose the one you want.
LocalCast automatically detects subtitles embedded inside MKV files, including SRT, ASS, and SSA formats. When you start casting, tap the subtitle icon to see all available tracks and select the one you want. You can also load external subtitle files or auto-download subtitles from OpenSubtitles.
No. LocalCast plays MKV files directly without any conversion or transcoding step. The app extracts the video and audio streams from the MKV container and sends them to your Chromecast in a format it understands. This means no waiting, no quality loss, and no extra software needed.
Join 50 million users who chose the smarter way to stream. Free on Android and iOS.