---
title: Audit Subtitle Sync Drift Across Video Timestamps — Free
description: Enter subtitle timing offsets and drift rates to pinpoint exactly when caption sync breaks down across long-form media.
category: accessibility
last_verified: pending
freshness: unverified
published: 2026-09-27
canonical_url: https://gratis-ai.pages.dev/articles/subtitled-media-sync-drift-docket.html
companion_app_url: https://gratis-ai.pages.dev/apps/subtitled-media-sync-drift-docket.html
reading_time_minutes: 4
tags: accessibility, subtitles, video, sync, local-first
---

# Audit Subtitle Sync Drift Across Video Timestamps — Free

Enter subtitle timing offsets and drift rates to pinpoint exactly when caption sync breaks down across long-form media.

**Free and complete.** This guide is a standalone free tool — no account, no card, anywhere. The only paid option is one optional extra outcome: $4 one-time. Nothing in the free tier is gated.

## Who it's for

Anyone seeking practical 100% free AI workflows — no paid API keys, credit cards, or subscriptions

## What's free

- Unlimited subtitle drift calculations and offset tracking
- Copy drift factors and state link for caption editing software

## Optional paid add-on

**$4 one-time.**

- Printable sync docket report — Detailed timestamped offset matrix for caption editors — estimate: ~40 minutes saved per video edit
- Saved media audit history — Store media caption profiles in local browser storage — estimate: ~20 minutes saved per re-render

## Sources & verification

- Tool: GratisAI local-first subtitle sync docket
- Primary source: the free tool itself (local-first, no external dependency)
- Last verification: pending (marked unverified, not assumed current)

## Use it

- Interactive guide: https://gratis-ai.pages.dev/articles/subtitled-media-sync-drift-docket.html
- Companion app: https://gratis-ai.pages.dev/apps/subtitled-media-sync-drift-docket.html
- This machine-readable mirror: /mirrors/subtitled-media-sync-drift-docket.md

*Generated free at https://gratis-ai.pages.dev/articles/subtitled-media-sync-drift-docket.html — every guide on GratisAI is a complete, working tool. $0, no account, no card, anywhere.*