SyncFlow Guides
Step-by-step tutorials for fixing subtitle sync problems, understanding subtitle formats, and using SyncFlow's free online subtitle tool. Whether you are dealing with subtitle delay, drift, or individual timing errors, these guides walk you through the fix.
Guide Categories
Troubleshooting & Fixes
Identify and fix subtitle delay, drift, and timing mismatches. Step-by-step walkthroughs for each type of sync problem.
2 guidesGetting Started
New to SyncFlow? Learn the basics of subtitle syncing, how the tool works, and what each control does.
Coming soonAdvanced Topics
Deep dives into linear drift calibration, framerate ratios, timestamp math, and precise subtitle alignment techniques.
Coming soonSyncFlow Tools
Dedicated guides for each SyncFlow feature: sync SRT files online, translate subtitles, transcribe audio, and more.
Coming soonLatest Guides
Fix Out-of-Sync Subtitles
The complete guide to identifying and fixing subtitle offset, drift, and timing mismatches. Covers all three types of sync problems with SyncFlow's matching tools.
Read Guide →How to Fix Subtitle Delay
Fix fixed-offset subtitle delay using SyncFlow's global offset slider, tap-to-sync, and nudge buttons. Includes a delay vs drift comparison table.
Read Guide →All Guides
Fix Out-of-Sync Subtitles
Identify offset, drift, and timing mismatch — and apply the correct fix with SyncFlow's dedicated tools.
Read Guide →How to Fix Subtitle Delay
Correct fixed-offset delay using the global offset slider, tap-to-sync, and keyboard nudge shortcuts.
Read Guide →Subtitle Drift Correction
Fix progressive desync caused by framerate mismatches using two-anchor linear calibration.
Coming SoonSync SRT File Online
Upload, adjust, and download corrected SRT or VTT subtitles using SyncFlow's full toolset.
Coming SoonTranslate SRT File Online
Translate existing subtitles into another language using AI translation via SyncFlow.
Coming SoonFrequently Asked Questions
Which guide should I start with?
+Start with the Fix Out-of-Sync Subtitles guide. It explains the three types of sync problems — fixed offset, linear drift, and timing mismatch — and helps you identify which one you have before applying the wrong fix.
Can I fix subtitle drift with the same tools as subtitle delay?
+No. Subtitle delay requires a global offset adjustment that shifts every cue by the same amount. Subtitle drift requires linear calibration with two anchor points because the error grows over time. Using the wrong fix will make the problem worse.
Do I need to create an account to use SyncFlow?
+No. SyncFlow is free and requires no account, no email, no login, and no payment. Core subtitle editing — offset adjustment, drift calibration, inline editing, and export — all work locally in your browser with no network requests. Your files never leave your computer. Separate AI features (transcription and translation) send audio/text through a secure Cloudflare proxy to Groq's API. Audio and text are processed in memory and never stored on any server.
Are new guides being added?
+Yes. We are actively publishing guides covering drift correction, subtitle format comparisons, and step-by-step tool workflows. Check back for updates.
Fix Your Subtitles Now
No account, no uploads, no watermark. All video and subtitle processing happens entirely in your browser — your files never leave your device. Drop in your files and fix the sync in under a minute.
🚀 Open SyncFlow Free ToolSyncFlow Tools
⚡ SyncFlow
Full-featured subtitle sync tool with offset slider, drift calibration, waveform preview, inline editing, and export.
Live🌐 Sync SRT File Online
Dedicated tool page for uploading, adjusting, and downloading corrected SRT and VTT subtitle files.
Coming Soon🔤 Translate Subtitles
Translate existing SRT or VTT subtitles into another language using AI translation.
Coming Soon🎤 AI Transcription
Generate subtitles from scratch using Whisper-large-v3-turbo through a secure Cloudflare proxy.
Live