Audio Trimmer
Cut audio files online, set start and end points, and export a clean clip.
Try it freeFree Audio Tool
Free subtitle time shifter
Paste SRT or VTT captions, enter a time offset, and shift timestamps forward or backward to fix subtitle sync.
Free Audio Tools
Professional audio tools right in your browser
Trim, convert, merge, record, estimate, and prepare audio for transcription. No downloads and no signup required for the tools.
Audio Converter
Convert browser-supported audio into a downloadable WAV file.
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Combine multiple audio files into one browser-generated WAV file.
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Reduce speech audio size with a browser-side, voice-optimized export.
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Change audio speed online for free, slow audio down or speed it up, and export a rendered WAV copy.
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Record audio directly from your microphone in the browser.
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Capture audio from another Chrome or Edge tab for videos, webinars, and browser playback.
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Record a Chrome or Edge tab and microphone together for Meet, Zoom Web, Teams, or browser calls without an extension.
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Create a structured meeting agenda and notes template.
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Count words and characters and estimate speaking time.
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Paste text and estimate read-aloud duration.
Try it freeAudio Length Estimator
Estimate how long a script will be when spoken.
Try it freeAudio Cleaner / Noise Reducer
Prepare speech audio for transcription with a browser-side voice-focused cleanup export.
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Remove low-volume silence from speech recordings and export a shorter WAV file.
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Normalize speech audio volume in your browser and export a louder, cleaner WAV copy.
Try it freeSplit Audio by Silence
Find quiet gaps in audio and create suggested split points for long recordings.
Try it freeSRT/VTT Cleaner
Clean subtitle text, normalize whitespace, and prepare SRT or VTT files for review.
Try it freeSubtitle Time Shifter
Shift SRT or VTT subtitle timestamps forward or backward.
Try it freeTranscript Word/Quote Extractor
Extract likely quotes, keywords, and useful lines from transcript text.
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Subtitle Time Shifter
AI Transcription
Interested in fast, accurate AI-based transcription?
Start free, upload your audio, and get a searchable transcript with speaker labels, timestamps, and export options.
Fix subtitle sync issues
If captions appear too early or too late, shift every timestamp by the same offset instead of editing each cue manually.
Use with generated captions
After exporting SRT or VTT, use a small offset when the video was trimmed or intro content changed.
How it works
How to use the Subtitle Time Shifter
- Paste SRT or VTT text.
- Enter the shift in seconds.
- Copy or download the shifted captions.
FAQ
Subtitle Time Shifter questions
Can I shift subtitles backward?
Yes. Enter a negative number of seconds to move captions earlier.
Does this change caption wording?
No. It only shifts timestamps.