# Subtitle Shifter — yeezhan.com
> One-time pay-per-task emergency tool to make your file ready for submission.
> No credits, no balance. One payment unlocks one task result, valid for 24 hours.

Tool domain: https://subtitle-shift.yeezhan.com
Skill definition: https://subtitle-shift.yeezhan.com/skill/SKILL.md
API documentation: https://subtitle-shift.yeezhan.com/api/docs

## What this tool does
Shift all subtitle timestamps forward or back by milliseconds — fix desynced subs in one pass.

## Typical user problems
- Subs that drift half a second behind the dialogue ruin a video. Shift every timestamp at once, with negative overflow clamped to zero.

## Parameters
- offset_ms: number (range -3600000-3600000ms), required. 偏移量. 正值延后，负值提前
- mode: enum, optional. 字幕格式

## Pricing
- Watermarked preview: free, no login required
- Final clean output: $0.99 one-time per task
- Require login (email/phone OTP) to complete payment
- Result available for download 24 hours after payment

## Limitations
- Max input 20 MB