Free Online Audio Tools
Free. No ads. No signup. No uploads. Everything runs in your browser — your files never leave your device.
8D Audio Effect
True 3D binaural audio with HRTF — not just stereo panning. 4 movement patterns.
Slowed + Reverb
Authentic slowed + reverb with convolution reverb — hall, cathedral, lofi presets.
Bass Booster
Dual-path bass: EQ boost + harmonic exciter for bass you can hear on any speaker.
Reverse Audio
Sample-perfect reverse — zero quality loss, instant A/B comparison.
Pitch Shifter
Studio-grade pitch shift without changing speed. ±24 semitones, minimal artifacts.
Speed Changer
Change speed while preserving pitch — phase vocoder, 0.25x to 3x range.
Volume Booster
Boost volume or auto-normalize to LUFS standards (Spotify, YouTube, Apple Music).
Audio Cutter
Trim audio with visual waveform — sample-accurate cuts, fade in/out.
Ringtone Maker
Trim, fade, and export .m4r for iPhone or .mp3 for Android — no iTunes needed.
Reverb Effect
Convolution reverb with 6 spaces — room, hall, cathedral, plate, spring, garage.
Audio Format Converter
Convert between MP3, WAV, FLAC, AAC, OGG — all processing in your browser.
MP3 to MIDI Converter
Spotify's Basic Pitch AI — polyphonic notes and pitch bends, transcribed in your browser.
Nightcore Maker
Speed up with natural pitch rise — the authentic nightcore sound, not a vocoder.
Sped Up Audio
Speed up any song while keeping the original pitch — TikTok-ready presets.
Vaporwave Effect
Extreme slowdown + cathedral reverb + lofi filter — 4 vaporwave presets.
432 Hz Converter
Retune from 440 Hz to 432 Hz (or any frequency) — same duration, no speed change.
528 Hz Converter
Love Frequency pitch shift — convert any audio to 528 Hz or other Solfeggio frequencies.
Solfeggio Converter
All 9 Solfeggio frequencies (174–963 Hz) — one-click presets, pitch shift without speed change.
Audio Equalizer
10-band graphic EQ with 7 presets — real-time preview, ±12 dB per band.
Video to MP3 Converter
Extract audio from video — MP4, MOV, MKV, WebM to MP3, WAV, FLAC, or AAC.
Mono to Stereo Converter
Convert mono to stereo (normal or Haas pseudo-stereo) or stereo to mono. Detects fake stereo.
Online Metronome
Precise metronome with tap tempo, time signatures (3/4 to 7/8), subdivisions, and keyboard shortcuts.
Tone Generator
Generate 20 Hz–20 kHz tones with 4 waveforms. Tune instruments, test speakers, explore binaural beats.
Hearing Test
Find the highest frequency you can hear and your hearing age — sine sweep, per-ear test, mosquito tone.
Recently updated
See what's new →- Fixed
The Hearing Test's confirmation tone now plays for its full cycle instead of cutting out after a split second, so your highest audible frequency is measured accurately. The volume slider also works mid-sweep, your comfortable level is kept between steps, and switching tabs during a sweep resets the test instead of reporting a false 20 kHz result.
- Fixed
The online metronome now plays exactly the tempo you set before pressing Start, goes as slow as 10 BPM as promised, keeps the A440 reference tone working after you stop, and no longer layers a second click track when you switch time signature right after returning to the tab.
- Improved
Bass Booster delivers fuller, cleaner low end — a phase cancellation that thinned out 100–300 Hz is gone. A new Harmonics control sets how much bass stays audible on phone speakers, and the Compression slider now evens out the mix without secretly making it louder.
- Improved
Reverb now sounds the same in preview and download when you switch spaces while playing — the recorded hall, room and cathedral load live. Decay and Reverb Size change how long real spaces ring out, and Slowed + Reverb and Vaporwave exports no longer end with seconds of dead silence.
Why AudioTrick?
Most audio tools online are packed with ads, require signup, or upload your files to a server. AudioTrick is different — every tool runs entirely in your browser using the Web Audio API. Your files never leave your device, processing is instant, and everything is completely free. Drop a file, tweak the effect, and export. That's it.
Professional Audio Processing — in Your Browser
Free doesn't mean low quality. Every AudioTrick tool uses the same DSP techniques found in professional audio software.
Convolution Reverb
Real impulse responses from physical spaces — not cheap algorithmic reverb.
HRTF Spatial Audio
True 3D binaural processing for 8D audio — not stereo panning tricks.
Broadcast-Standard Loudness
EBU R128 peak limiting and LUFS normalization — the same targets Spotify and Apple Music use.
What You Hear = What You Get
Preview and export are bit-identical. No surprises when you download.