Private browser tool

SRT Merger

Combine and sort cues from two subtitle files without uploading either file.

No uploadNo accountFree to use

✓ Runs locally in your browser

🔒 Subtitle content never leaves your browser.

Private by default

Useful conversion without giving up your file.

Subtitle text remains in your browser and is not sent to Voysum.

Text-based conversion happens immediately without a server queue.

Save the converted or edited subtitle file directly to your device.

Common questions

How local browser processing works and what to expect.

Is my subtitle uploaded?

No. The file is read and processed only inside your browser tab.

Do I need an account?

No. This subtitle utility is completely free to use.

Keep working

Check SRT timing, overlaps, empty cues, and long lines locally.

Open, edit, and download SRT or VTT subtitles locally in your browser.

Shift every SRT or VTT subtitle timestamp forward or backward.

Need the words too?

Voysum can transcribe the spoken track and create editable text and subtitle files.