Free, no-sign-up audio tools for music producers, recording and mixing engineers, and DJs — plus a suite of AI tools for stem separation, mastering, transcription and cover art. Most editors and calculators run instantly in your browser (your audio never leaves your device); the AI tools use a secure server and delete your files right after. Nothing to install, no login. Bookmark this page and come back whenever you need it.
🤖 AI Tools
Studio-grade AI, free in your browser — separate stems, master a track, clean up voice, transcribe audio and design cover art. Free daily use, no signup.
AI Stem Splitter
Split any song into Vocals, Drums, Bass & Other with AI — or remove vocals for a karaoke instrumental.
AI Vocal Remover
Remove vocals from a song with AI — clean karaoke instrumental + isolated acapella.
AI Mastering
Master your track to a loud, balanced, streaming-ready sound — instant in your browser or AI reference-match.
AI Audio Enhancer
Clean up noisy voice recordings — remove background noise, hiss and echo and restore studio-clear speech.
AI Transcription
Turn audio or video into text in 90+ languages, with timestamps — export SRT, VTT or TXT subtitles.
AI Album Cover Generator
Generate cover art from a text prompt, add your title & artist, and download a hi-res PNG for Spotify.
AI Sound Effect Generator
Create any sound effect from a text prompt — rain, lasers, whooshes — royalty-free WAV.
Audio Editors
Slowed + Reverb Generator
Make slowed + reverb, nightcore, daycore & lo-fi edits, then export a WAV.
Bass Booster
Add deep, punchy bass to any song and download the boosted WAV.
Audio Speed Changer
Speed up or slow down any song from 0.25× to 4×, then export a WAV.
Online Equalizer
Shape bass, mids and treble with a free 5-band graphic EQ.
8D Audio Maker
Turn any song into rotating 8D audio — best in headphones.
Audio Cutter & Trimmer
Cut and trim audio on a waveform, add fades, export a clean WAV.
Extract Audio from Video
Pull the audio from an MP4, MOV or WebM — save as MP3 or WAV.
Loop Maker
Loop a section of a song with a seamless crossfade, then export a WAV.
Ringtone Maker
Cut a song’s hook into a phone-ready MP3 or WAV ringtone.
Silence Remover
Auto-cut silent gaps & dead air from a recording; MP3/WAV.
Voice Recorder
Record from your mic, play back, download an MP3 or WAV.
Music Visualizer
Audio-reactive visuals — bars, radial, particles — record a video.
Vocal Remover
Make a karaoke instrumental or isolate the vocal, instantly.
Pitch Shifter
Shift pitch up or down by semitones — without changing the tempo.
Reverse Audio
Play any song or sound backwards, then export a WAV.
Tone Generator
Generate a pure sine, square, triangle or sawtooth test tone.
White Noise Generator
White, pink & brown noise + rain, ocean, wind, fire & a timer.
Text to Speech
Read any text aloud with natural voices & word highlighting.
Binaural Beats Generator
Delta–gamma binaural beats for focus, sleep & relaxation.
Voice Changer
Robot, deep, chipmunk, alien & phone voice effects; MP3/WAV.
Volume Booster
Make any track louder — normalize and boost without clipping.
Audio Joiner
Merge two or more audio files into one, back to back.
BPM & Key Finder
Detect the tempo, key and Camelot code of any song.
Audio Converter
Convert to WAV or MP3, change sample rate, mono or stereo.
Audio Compressor
Shrink an audio file — lower the bitrate, see the size saved.
Noise Reducer
Cut steady hiss, hum & fan noise with spectral subtraction.
Nightcore Maker
Speed a song up and pitch it higher for a Nightcore remix.
Sped Up Song Maker
Speed up any song for the viral sped-up TikTok sound.
Tempo & Timing
Delay Time Calculator
Turn any BPM into note-perfect delay times in milliseconds.
Reverb Pre-Delay & Decay
Match reverb pre-delay and decay to your track’s tempo.
Tap Tempo / BPM Counter
Tap along to find the BPM of any song by ear.
Online Metronome
Free click track with adjustable tempo, beats and accents.
Song Length Calculator
Work out track duration from bars, BPM and time signature.
Genre BPM Chart
Typical tempo ranges for every major genre, at a glance.
Drum Machine
Build a beat on a step sequencer and export a WAV loop.
Beat Maker
Make a beat with 808/909 kits, swing and keyboard pads — export WAV or MP3.
Key, Pitch & Harmony
Auto-Tune Online
Pitch-correct a vocal — natural correction to the hard T-Pain effect.
Note ↔ Frequency
Convert any note to its frequency in Hz — and back.
Scale & Chord Finder
Find the notes in any scale and the chords that fit.
Circle of Fifths
Interactive reference for keys, sharps, flats and relatives.
Camelot Wheel
Pick harmonically-compatible keys for DJ mixing.
Chord Transpose & Capo
Transpose chords to a new key or find the right capo fret.
Virtual Piano
Play a browser piano with your keyboard, mouse or touch.
Online Tuner
Chromatic tuner for guitar, bass, voice — via your mic.
Chord Detector
Find a song’s chords on a timeline you can play along with.
Mixing, EQ & Acoustics
Speaker & Headphone Test
Test L/R channels, stereo, bass/sub & a full frequency sweep.
EQ Frequency Cheat Sheet
What every frequency band does, instrument by instrument.
Room Mode Calculator
Find problem resonances from your room dimensions.
SPL Distance Calculator
How loudness drops with distance (inverse-square law).
Decibel (dB) Calculator
Add, subtract and convert dB, gain and amplitude ratios.
Frequency ↔ Wavelength
Convert frequency to wavelength for treatment and miking.
Loudness & Delivery
LUFS Loudness Targets
Target loudness for Spotify, YouTube, Apple Music and more.
Audio File Size Calculator
Estimate file size from sample rate, bit depth and length.
Frequently asked questions
Are these tools really free?
Yes. All 60 tools are completely free, with no sign-up, no watermark and no usage limits. They run entirely in your browser, so your files and inputs never leave your device.
Do I need to install anything?
No. Everything works in any modern browser on desktop or mobile — just open a tool and start typing. Nothing to download or configure.
Which calculator should I start with?
The Delay Time Calculator and Tap Tempo are the most-used. If you mix or master, jump to the LUFS Loudness Targets and EQ Cheat Sheet.