Free Online Subtitle Extractor

Extract embedded subtitles from video files as SRT format. Preview and download subtitle text instantly.

Select a video file (MKV, MP4 with embedded subtitles)

Click or drag a video file here
MKV, MP4 with embedded subtitles

All processing happens in your browser. No files are uploaded to any server.

Extract Subtitles from Any Video File

The SaveOnlineVideos Subtitle Extractor lets you pull embedded subtitle tracks from video files directly in your browser. Many video files, especially MKV containers, contain one or more embedded subtitle tracks that can be extracted as standalone SRT files. This is useful for translating subtitles, editing them, or using them with a different video player.

Our tool uses FFmpeg WebAssembly to read the subtitle stream from your video file and output it in SRT format. The entire process happens locally on your device. No video data is uploaded, streamed, or processed on any external server. You can preview the extracted subtitles right in your browser before downloading the SRT file.

How to Extract Subtitles

Upload your video file

Select a video file that contains embedded subtitles. MKV files are most likely to have embedded subtitle tracks.

Extract subtitles

Click Extract Subtitles. The tool scans for subtitle tracks and extracts them as SRT format text.

Preview and download

Preview the extracted subtitle text and download it as an SRT file for use with any media player or editor.

Benefits

Fast Extraction

Subtitle tracks are tiny compared to video data, so extraction completes in seconds even for large files.

Universal SRT Format

Output in SRT format works with VLC, MPV, Plex, Kodi, and virtually every media player and editor.

Preview Before Download

See the extracted subtitle text directly in your browser before downloading the file.

Complete Privacy

Everything runs in your browser. No server uploads, no data collection, no tracking.

Frequently Asked Questions

What video formats have embedded subtitles?

MKV (Matroska) is the most common format for embedded subtitles. MP4 files can also contain subtitle tracks, though it is less common. AVI files sometimes include subtitles as well. The subtitles must be embedded in the video file, not in a separate SRT file.

What subtitle format is the output?

Subtitles are extracted in SRT (SubRip) format, which is the most widely supported subtitle format. SRT files are plain text and can be opened in any text editor, used with media players like VLC, or uploaded to video editing software.

What if no subtitles are found?

If the tool reports no subtitles found, the video file likely does not contain embedded subtitle tracks. External subtitle files (separate SRT files) cannot be extracted since they are not part of the video file itself.

Is there a file size limit?

You can process video files up to 2 GB. Since the tool only extracts the subtitle track without processing the video stream, the extraction is very fast even for large files.

Are my files uploaded to a server?

No. All processing happens entirely in your browser using FFmpeg WebAssembly. Your video files never leave your device.