Free · No signup · Runs in your browser

Free Audio Tools

Find CC0 sounds, then trim, join, loop, fade, and convert audio. Editing tools process files on your device, so your audio is not uploaded.

For agents: use the sound library through MCP or read llms.txt.

Discover

Find CC0 sounds for your project.

Sound FinderDescribe the sound you need and preview matching CC0 audio.

Edit

Cut, join, loop, and clean up clips.

Audio TrimmerCut a clip from any audio file on a visual waveform.Audio JoinerJoin several audio files into one, with optional crossfades.Loop AudioRepeat a clip a set number of times or to a target length.Silence RemoverTrim silence from the start and end, and shorten long pauses.

Effects

Change volume, speed, direction, and fades.

Volume BoosterMake audio louder or quieter, or normalize the peak level.Speed ChangerSpeed audio up or slow it down from 0.5x to 2x.Reverse AudioPlay any audio file backwards.Fade In / OutAdd a smooth fade-in and fade-out to any clip.

Convert

Change the file format.

Audio ConverterConvert MP3, WAV, OGG, FLAC, or AAC to MP3 or WAV.

Visualize

Turn audio into images.

Waveform GeneratorMake a PNG waveform image from any audio file.

Quick conversions

Jump straight to a specific format pair, pre-configured and ready to go.

WAV→MP3MP3→WAVOGG→MP3OGG→WAVFLAC→MP3FLAC→WAVAAC→MP3AAC→WAV

Frequently asked questions

Are these audio tools really free?

Yes. The editing tools run in your browser with no signup or usage quota. The sound finder also lets you search and preview the CC0 catalog for free. Sign up when you want to download a sound or use it through the API or MCP.

Do I need to install anything?

No. The tools run directly in your web browser using the Web Audio API. No downloads, plugins, or extensions required.

What audio formats are supported?

You can open MP3, WAV, OGG, FLAC, and AAC files, as long as your browser can decode them. The editing and effects tools export MP3 (128 kbps) or WAV (16-bit). The trimmer exports WAV, and the waveform generator exports PNG images.

Get access to royalty-free sounds today

12,000+ CC0 sounds. Browse free, or add them to your app with one API key.

Get started freeBrowse sounds

No credit card required. API from $15/mo. Pricing · API docs