Free Audio Editor Online
Eight audio tools in your browser. Cut, join, convert, normalize, denoise, and more. All free, all private.
Eight Tools, Zero Downloads
cut.audio is a suite of free audio tools that run entirely in your browser: • Audio Cutter — trim and slice audio files • Audio Joiner — merge multiple files with crossfade • Audio Converter — convert between MP3, WAV, FLAC, OGG • Speed & Pitch — change tempo and pitch with live preview • Audio Recorder — record from your microphone with waveform display • Volume Normalizer — match loudness to LUFS standards for podcasts, YouTube, streaming • Noise Remover — AI noise suppression for speech recordings • Ringtone Maker — trim songs with fade in/out for iPhone and Android ringtones
Why Browser-Based?
No installation means: • Works immediately on any device • No disk space used • No compatibility issues • No updates to manage No upload means: • Faster than server-based tools • Your files stay private • Works offline once loaded • No file size limits from server restrictions
Powered by WebAssembly
cut.audio's audio engine is written in C++ and compiled to WebAssembly. This means near-native processing speed in your browser — the same technology used by professional audio software, running client-side. The LAME MP3 encoder, FLAC codec, and OGG Vorbis codec all run locally. No server, no cloud, no waiting.
Works on Every Device
• Windows, Mac, Linux desktop • Chromebook • iPhone and iPad (Safari) • Android phones and tablets (Chrome) Any modern browser with WebAssembly support works. That's all of them.
Try it now — free in your browser
No download. No signup. Your files never leave your device.
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Frequently Asked Questions
Yes. Every tool, every feature, no limits. There's no premium tier, no account required, and no ads.
Yes. Everything runs locally in your browser. Your files are never uploaded to any server. We can't see, hear, or store your audio because it never leaves your device.
All tools support MP3, WAV, FLAC, and OGG — both for input and output.