Audio Trimmer
Cut audio files online, set start and end points, and export a clean clip.
Try it freeFree Audio Tool
Slow down audio online
Use the free browser-based audio speed changer to slow down speech, interviews, lectures, podcasts, and hard-to-hear sections. Preview the slower version and download a rendered WAV file.
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.
Try it freeAudio Merger
Combine multiple audio files into one browser-generated WAV file.
Try it freeMP3 Compressor
Reduce speech audio size with a browser-side, voice-optimized export.
Try it freeAudio Speed Changer
Change audio speed online for free, slow audio down or speed it up, and export a rendered WAV copy.
Try it freeVoice Recorder
Record audio directly from your microphone in the browser.
Try it freeTab Audio Recorder
Capture audio from another Chrome or Edge tab for videos, webinars, and browser playback.
Try it freeTab + Microphone Recorder
Record a Chrome or Edge tab and microphone together for Meet, Zoom Web, Teams, or browser calls without an extension.
Try it freeMeeting Notes Generator
Create a structured meeting agenda and notes template.
Try it freeWord Counter
Count words and characters and estimate speaking time.
Try it freeReading Time Calculator
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.
Try it freeSilence Remover
Remove low-volume silence from speech recordings and export a shorter WAV file.
Try it freeVolume Normalizer
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.
Try it freeSRT/VTT Converter
Convert subtitle text between SRT, WebVTT, and plain transcript formats.
Try it freeSubtitle Drift Fixer
Fix subtitles that gradually drift out of sync by stretching or compressing timestamps.
Try it freeSubtitle Line Breaker
Reflow SRT or VTT caption text into cleaner lines with configurable length limits.
Try it freeTranscript Cleaner
Clean transcript text by removing timestamps, fillers, repeated spaces, and noisy formatting.
Try it freeTranscript to Show Notes
Generate show notes, chapters, quotes, and keywords from pasted transcript text.
Try it freeAudio Quality Checker
Check audio duration, volume, clipping, silence, channels, and transcription readiness.
Try it freeStereo Channel Splitter
Export the left or right channel from a stereo recording as a separate WAV file.
Try it freeSRT/VTT to Plain Text
Remove subtitle timestamps and numbering to extract readable transcript text.
Try it freeTranscript Timestamp Finder
Search timestamped transcripts and pull matching lines with nearby context.
Try it freeCaption FPS Converter
Convert subtitle timing between common video frame rates such as 23.976, 24, 25, 29.97, and 30 fps.
Try it freeFree browser tool
Runs locally in browserAudio Speed Changer
Choose an audio file to see the resulting length before rendering.
Next step
Transcribe the edited audio when you need text
Start free, upload the prepared recording, and get an AI transcript with searchable text, speaker labels, timestamps, summaries, and TXT, DOCX, PDF, SRT, or VTT exports.
Slow down audio for careful listening
Set the speed below 1.0x when speech is fast, accented, noisy, or dense. Slower audio helps with interviews, lectures, podcasts, research recordings, and language-learning review.
Review before you transcribe
Use slower playback to understand difficult sections, then create a transcript when you need searchable text, quotes, captions, or notes.
No install, no upload for speed changes
The speed-change step runs in your browser. Choose the audio file, render the slower version, preview it, and download the WAV result.
How it works
How to use the Slow Down Audio Online
- Choose an audio file supported by your browser.
- Move the speed slider below 1.0x.
- Render and preview the slower audio.
- Download the changed-speed WAV file.
FAQ
Slow Down Audio Online questions
Can I slow down audio online for free?
Yes. Upload a browser-supported audio file, set a slower speed, render the result locally, and download the changed-speed WAV file.
Can I slow down podcast or interview audio?
Yes. Slower playback is useful for podcasts, interviews, lectures, language study, and unclear speech.
Does this create a transcript too?
The speed tool prepares the audio. Sign up after editing when you want AI transcription with searchable text, timestamps, speaker labels, and exports.