Audio Tools - Convert, Edit, Mix & Generate Audio Online Free

Convert, edit, and generate audio with browser-based tools that run entirely on your device. No uploads to servers, everything happens locally using the Web Audio API and WebAssembly encoders. Convert between common audio formats including MP3, WAV, OGG, FLAC, and AAC with real encoding, not just WAV re-export. Trim audio to specific time ranges, merge multiple files together, or split one file into multiple segments. Apply volume normalization, fade effects, and change playback speed. Generate pure tones at specific frequencies for testing and audio work. Create different types of noise (white, pink, brown) for sound masking, relaxation, or audio engineering. Shift pitch up or down while preserving duration. Content creators, podcasters, musicians, and anyone who needs quick audio work can get it done here without installing software.

Featured Audio Tools

Featured

Audio Merger

Merge and join multiple audio files into one

Normalize audio volume to consistent levels

Speed up or slow down audio playback rate

Split audio files into equal segments

Trim audio files to exact time ranges

Convert MP3 to uncompressed WAV format

Generate white, pink, or brown noise audio

Generate pure tones at specific frequencies

Convert WAV to MP3 format

convert

wav

mp3

All Audio Tools

AAC Player

Play AAC audio files in your browser

Convert AAC and M4A audio to MP3

convert

aac

mp3

Audio Bandpass Filter

Isolate a frequency range with bandpass filter

Reduce bit depth for lo-fi effect

bitcrush

lofi

audio

Audio Channel Swapper

Swap left and right audio channels

Thicken audio with chorus modulation

Compress audio dynamics for consistent volume levels

Add delay and echo effects to audio

Apply distortion and overdrive to audio

Equalize audio with 3-band bass, mid, and treble EQ

Add gradual fade-in effect to audio files

Add gradual fade-out effect to audio files

fade

audio

effect

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Audio Tools Mini Guide

What creators use audio tools for

Content creators, musicians and podcasters use audio tools to convert formats, edit recordings, normalize volume and generate test sounds. These tools support quick edits without requiring full audio software.

Convert between MP3, WAV, OGG, and other audio formats

Trim unwanted sections from recordings

Merge multiple audio clips together

Normalize volume for consistent loudness

Generate test tones and noise for audio work

Why client-side processing matters

All audio processing happens directly in your browser using the Web Audio API. This means your files never leave your device, ensuring privacy and eliminating upload wait times.

No server uploads - completely private processing

Instant results - no waiting for file transfers

Works offline after initial page load

No account or subscription required

Consistent performance across devices

How audio processing works

The Web Audio API handles audio processing directly in modern browsers. Audio files are decoded into buffer arrays, processed with various operations, and re-encoded to your desired format.

AudioContext decodes input files to raw buffers

GainNodes control volume and normalization

AudioBufferSourceNodes play, reverse or loop audio

OfflineAudioContext renders processed results

WAV encoding creates downloadable output

When to use conversion compared to editing

Use format conversion when you need compatibility with different devices or platforms. Use editing tools when you need to modify the audio content itself.

Use conversion when:

Preparing files for specific platforms or devices

Preserving full quality with uncompressed WAV output

Converting legacy formats to widely supported WAV

Use editing when:

Removing unwanted sections from recordings

Combining multiple clips into one file

Adjusting volume or adding effects

Audio Tools - Frequently Asked Questions

Common questions about processing audio in your browser

What audio formats are supported?

Our audio tools accept MP3, WAV, OGG, FLAC, and AAC as input formats. Format converters can output MP3, OGG, or WAV depending on the conversion. Editing tools (trim, merge, effects) output uncompressed WAV for maximum quality.

How does client-side audio processing work?

All audio processing happens directly in your browser using the Web Audio API. Your files are decoded, processed and re-encoded entirely on your device - they never leave your computer, ensuring complete privacy and no upload wait times.

What is audio normalization and when should I use it?

Audio normalization adjusts the volume of your audio to a consistent level, making quiet parts louder while preventing loud parts from clipping. Use it when combining multiple tracks or when preparing audio for platforms that require specific volume levels.

Can I trim audio without losing quality?

Yes, our audio trimmer extracts the selected segment at full quality. The audio is decoded, trimmed to your chosen start and end points, and exported as an uncompressed WAV file with no quality loss.

What's the difference between fade in and fade out?

Fade in gradually increases volume from silence to full volume at the start of your audio. Fade out does the opposite, gradually decreasing volume from full to silence at the end. Both are used for smooth transitions between audio segments.

Does changing audio speed affect pitch?

Use our Audio Speed Changer tool to alter playback speed. Note that changing speed will also affect the pitch of the audio — speeding up raises pitch and slowing down lowers it. This is useful for time-stretching recordings.

What can I use the tone generator for?

The tone generator creates pure audio tones at specific frequencies with your choice of waveform (sine, square, sawtooth, triangle). It's useful for audio testing, calibration, music production, and creating sound effects.

What's the difference between white, pink and brown noise?

White noise has equal energy across all frequencies (like static). Pink noise is weighted to match human hearing (softer at high frequencies). Brown noise has the deepest frequency emphasis, sounding like a low rumble - all used for different purposes from focus to sound masking.

Can I merge multiple audio files into one?

Yes, the Audio Merger tool lets you upload multiple audio files which are combined sequentially into a single file. All files should be similar format and duration for best results. Common uses include combining multiple takes or adding intro/outro to recordings.

How do I make my audio file smaller?

Convert to MP3 or OGG format using our format converters — both use lossy compression to significantly reduce file size. You can also trim unnecessary sections with the Audio Trimmer to cut length. MP3 offers the widest compatibility, while OGG often provides better quality at similar sizes.

Popular Workflows for Audio Tools

Step-by-step guides for common audio tasks

Prepare Audio for Podcast Episodes

Clean up and prepare multiple audio clips for a podcast episode with consistent volume and smooth transitions.

Perfect for: Podcasters and content creators editing voice recordings.

Steps

1Upload your audio files and use the Audio Trimmer to remove any silence, mistakes or unwanted sections from each clip.
2Use the Audio Merger to combine all clips into a single file in the correct order.
3Apply Audio Normalizer to ensure consistent volume levels throughout the entire episode.
4Add Audio Fade In to the beginning and Audio Fade Out to the end for smooth transitions.
5Download your final episode as a WAV file for the best quality.

Create Loopable Background Music

Generate a seamless loop for video backgrounds, presentations or gaming streams from any audio source.

Perfect for: Video creators, streamers and content creators needing loopable audio.

Steps

1Upload your audio file and use the Audio Trimmer to select the perfect loop segment (typically 4-8 seconds works best).
2Use the Audio Looper tool to create a seamless loop that plays continuously without audible breaks.
3Apply gentle Audio Fade In and Fade Out to ensure the loop transitions smoothly at both ends.
4Export as WAV for highest quality, or convert to MP3 using the WAV to MP3 converter for smaller file size.

Prepare Audio for Social Media Videos

Adjust audio levels and apply effects to ensure your voiceover or music sounds great on social platforms.

Perfect for: Social media creators and marketers preparing video content.

Steps

1Upload your audio and use the Audio Normalizer to bring up quiet sections while preventing clipping.
2If the audio is too loud, use the Audio Compressor to smooth out dynamic range differences.
3Adjust the overall volume with the Audio Volume Booster if needed for platform requirements.
4Convert to MP3 using the WAV to MP3 converter for best social media compatibility, or download as WAV for highest quality.

Create Test Audio for Development

Generate various audio signals for testing speaker systems, audio equipment or developing audio applications.

Perfect for: Developers and audio engineers testing audio systems.

Steps

1Use the Tone Generator to create pure sine waves at specific frequencies for frequency response testing.
2Generate White Noise using the Noise Generator for broad spectrum testing and calibration.
3Create Pink Noise for more natural-sounding test signals that match human hearing perception.
4Use the Metronome tool with specific BPM settings to test timing and synchronization in applications.

Convert Legacy Audio Collections

Modernize old audio files by converting them to current formats with improved quality settings.

Perfect for: Archivists, musicians and businesses digitizing audio collections.

Steps

1Upload your legacy audio files (WAV, FLAC, AAC or older formats) for conversion.
2Use Audio Normalizer to bring older recordings up to consistent volume levels.
3Download the processed audio as WAV, which works with all modern devices and audio software.
4Download converted files in batch for your modernized audio library.

Related Collections

Explore curated collections of audio tools with expert guides, workflows, and best practices.

Audio Editing Tools for Creators

Audio editing tools for podcasters, musicians, and content creators. Trim, merge, split, reverse, and modify audio files directly in your browser with no software required.

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Audio Effects & Filters

Apply creative audio effects and filters in your browser. Add reverb, delay, distortion, chorus, flanger, and frequency filters, all processed locally with no uploads.

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Audio Format Converters

Convert audio between MP3, WAV, OGG, and FLAC formats. Free, fast, browser-based conversion with no uploads. Real encoding, not just WAV re-export.

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Audio Generation & Test Tools

Generate audio signals for testing, production, and creativity. Create pure tones, various noise types, and metronome clicks. Free browser-based audio generation tools.

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Audio Processing Tools

Process and improve audio in your browser. Compress dynamics, equalize frequencies, shift pitch, adjust volume, convert channels, and add fades, all locally with no uploads.

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