No upload
Subtitle text remains in your browser and is not sent to Voysum.
VoysumPrivate browser tool
Subtitle Time Shifter
Fix subtitles that appear too early or too late by applying one timing offset to the complete 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.
Instant processing
Text-based conversion happens immediately without a server queue.
Simple download
Save the converted or edited subtitle file directly to your device.
Common questions
Subtitle Time Shifter FAQ
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
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