Free Audio Tool

Audio format changer online

Change browser-supported audio into a clean WAV copy without installing converter software. Choose a file, render the WAV locally, preview it, and download the result.

Free Audio Tools

Professional audio tools right in your browser

Trim, convert, merge, record, extract, estimate, and prepare audio for transcription. No downloads and no signup required for the tools.

Audio Trimmer

Cut audio files online, set start and end points, and export a clean clip.

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Audio Converter

Convert browser-supported audio into a downloadable WAV file.

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Extract Audio From Video

Extract audio from browser-supported video files into a downloadable audio recording.

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Audio Merger

Combine multiple audio files into one browser-generated WAV file.

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MP3 Compressor

Reduce speech audio size with a browser-side, voice-optimized export.

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Audio Speed Changer

Change audio speed online for free, slow audio down or speed it up, and export a rendered WAV copy.

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Voice Recorder

Record audio directly from your microphone in the browser.

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Tab Audio Recorder

Capture audio from another Chrome or Edge tab for videos, webinars, and browser playback.

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Tab + Microphone Recorder

Record a Chrome or Edge tab and microphone together for Meet, Zoom Web, Teams, or browser calls without an extension.

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Meeting Notes Generator

Create a structured meeting agenda and notes template.

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Word Counter

Count words and characters and estimate speaking time.

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Reading Time Calculator

Paste text and estimate read-aloud duration.

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Audio Length Estimator

Estimate how long a script will be when spoken.

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Audio Cleaner / Noise Reducer

Prepare speech audio for transcription with a browser-side voice-focused cleanup export.

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Silence Remover

Remove low-volume silence from speech recordings and export a shorter WAV file.

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Volume Normalizer

Normalize speech audio volume in your browser and export a louder, cleaner WAV copy.

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Split Audio by Silence

Find quiet gaps in audio and create suggested split points for long recordings.

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SRT/VTT Cleaner

Clean subtitle text, normalize whitespace, and prepare SRT or VTT files for review.

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Subtitle Time Shifter

Shift SRT or VTT subtitle timestamps forward or backward.

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Transcript Word/Quote Extractor

Extract likely quotes, keywords, and useful lines from transcript text.

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SRT/VTT Converter

Convert subtitle text between SRT, WebVTT, and plain transcript formats.

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Subtitle Drift Fixer

Fix subtitles that gradually drift out of sync by stretching or compressing timestamps.

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Subtitle Line Breaker

Reflow SRT or VTT caption text into cleaner lines with configurable length limits.

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Transcript Cleaner

Clean transcript text by removing timestamps, fillers, repeated spaces, and noisy formatting.

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Transcript to Show Notes

Generate show notes, chapters, quotes, and keywords from pasted transcript text.

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Audio Quality Checker

Check audio duration, volume, clipping, silence, channels, and transcription readiness.

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Stereo Channel Splitter

Export the left or right channel from a stereo recording as a separate WAV file.

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SRT/VTT to Plain Text

Remove subtitle timestamps and numbering to extract readable transcript text.

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Transcript Timestamp Finder

Search timestamped transcripts and pull matching lines with nearby context.

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Caption FPS Converter

Convert subtitle timing between common video frame rates such as 23.976, 24, 25, 29.97, and 30 fps.

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Free browser tool

Audio Converter

Runs locally in browser
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.

Change audio format to WAV

Use this free audio format changer to turn browser-supported audio into a WAV file. WAV is useful for editing, archiving, compatibility checks, and preparing recordings for transcription.

Browser-supported audio conversion

The converter uses your browser audio decoder, so support depends on the file format, codec, and browser. MP3, M4A, WAV, OGG, and WebM commonly work in modern browsers.

Prepare audio for transcription

After changing the format, upload the prepared recording to InstantTranscriber when you need searchable text, speaker labels, timestamps, captions, or document exports.

How it works

How to use the Audio Format Changer

  1. Choose an audio file your browser can play.
  2. Click Convert to WAV.
  3. Preview the converted audio.
  4. Download the WAV copy.
FAQ

Audio Format Changer questions

Can I change audio format online for free?

Yes. Choose a browser-supported audio file and convert it to WAV locally in your browser.

Does this convert to MP3 or M4A?

No. This browser tool exports WAV. Browser-native MP3 or M4A encoding is not consistently available without heavier local transcoding.

Does the audio upload during conversion?

No. The format change runs locally in your browser. Transcription upload is a separate step if you choose it.