185 Free Audio Tools — Convert, Edit & Master
Essential utilities to convert formats, tune instruments, analyze spectrums, and master podcasts instantly. No signup required.
Audio Conversion (13)
MP3 Converter
Convert audio to MP3 format with adjustable bitrate
WAV Converter
Convert audio to lossless WAV format
OGG Converter
Convert audio to OGG Vorbis format
AAC Converter
Convert audio to AAC format for Apple devices
FLAC Converter
Convert audio to FLAC lossless format
M4A Converter
Convert audio to M4A format
WMA Converter
Convert audio to WMA format
AIFF Converter
Convert audio to AIFF format
OPUS Converter
Convert audio to OPUS format
Audio Format Converter
Universal audio format converter with batch support
Bitrate/Quality Converter
Re-encode audio at a different bitrate or quality
WMA/M4B/CAF Decoder
Decode WMA, M4B and CAF files to standard formats
ALAC/M4A Lossless Converter
Convert to and from ALAC lossless in M4A containers
Audio Trimming & Editing (23)
Audio Trimmer
Trim audio files to keep only the parts you need
Audio Cutter
Cut and remove unwanted sections from audio
Audio Splitter
Split audio files into multiple segments
Audio Joiner
Merge multiple audio files into one
Audio Merger
Combine audio tracks seamlessly
Audio Slicer
Slice audio by time or markers
Audio Loop Maker
Create seamless audio loops
Sample Chopper
Chop audio into samples
Audio Fade In/Out
Add smooth fade in and fade out effects
Crossfade Creator
Create crossfades between audio clips
Audio Reverser
Reverse audio playback
Audio Speed Changer
Change playback speed, with or without pitch change
Audio Pitch Shifter
Shift pitch without changing speed
Tempo Changer
Adjust tempo while preserving pitch
Time Stretcher
Stretch or compress audio duration
Audio Normalizer
Normalize audio levels for consistency
Audio Amplifier
Increase audio volume safely
Audio Limiter
Apply peak limiting to prevent clipping
Audio Compressor
Dynamic range compression for audio
Audio Expander
Expand dynamic range of audio
Audio Gate
Noise gate to silence quiet parts
Silence Remover
Automatically remove silent sections
Ringtone Maker
Create custom ringtones with trim and fade controls
Volume & Dynamics (12)
Volume Booster
Boost audio volume up to safe levels
Volume Reducer
Reduce audio volume precisely
Audio Leveler
Automatically level audio volume
Loudness Normalizer
Normalize to LUFS loudness standards
Peak Limiter
Prevent audio peaks and clipping
RMS Normalizer
Normalize audio using RMS levels
Dynamic Range Compressor
Professional-grade audio compression
Multiband Compressor
Compress different frequency bands separately
Parallel Compressor
Blend compressed and dry signals
Sidechain Compressor
Ducking and pumping effects
Brickwall Limiter
Ultra-transparent peak limiting
Clipping Distortion Remover
Repair clipped audio distortion
Audio Effects (34)
Reverb Simulator
Add realistic room reverberation
Echo / Delay Generator
Create echo and delay effects
Chorus Effect
Add rich chorus modulation
Flanger Effect
Create sweeping flanger sounds
Phaser Effect
Phase-shifting audio effect
Tremolo Effect
Amplitude modulation tremolo
Vibrato Effect
Pitch modulation vibrato
Distortion Effect
Add controlled audio distortion
Bitcrusher Effect
Reduce bit depth for lo-fi sound
Ring Modulator
Create metallic ring mod effects
Auto-Wah
Automatic wah-wah filter effect
Stereo Widener
Enhance stereo field width
Mono-to-Stereo Converter
Convert mono audio to stereo
Stereo-to-Mono Converter
Convert stereo audio to mono
Mid-Side Encoder
Encode stereo to Mid/Side format
Mid-Side Decoder
Decode Mid/Side back to stereo
Surround Sound Simulator
Simulate surround sound from stereo
Convolution Reverb
Realistic reverb using impulse responses
Doppler Effect Simulator
Simulate moving sound sources
Pitch Correction
Auto-tune and correct pitch
Harmonizer
Generate vocal harmonies
Auto-Tune Effect
Classic pitch correction effect
Formant Shifter
Shift vocal formants independently
Robot Voice Effect
Create robotic vocoder sounds
Radio Effect
Simulate AM/FM radio sound
Telephone Effect
Simulate telephone audio quality
Underwater Effect
Simulate underwater muffled sound
Hallway / Room Simulator
Simulate various room acoustics
Old Tape Effect
Vintage tape saturation and wow/flutter
Vinyl Record Effect
Add vinyl crackle and warmth
Equalizer / 3-band EQ
Adjust bass, mid and treble with a 3-band equalizer
Bass Booster
Boost low frequencies with a bass shelf filter
8D Audio Converter
Convert audio to rotating 8D spatial sound
Slowed + Reverb / Nightcore
Create slowed + reverb or nightcore edits
Audio Cleanup (10)
Noise Reducer
Reduce background noise in audio
Background Noise Remover
Remove constant background hum
Hiss Remover
Eliminate tape hiss and high-frequency noise
Hum Remover
Remove electrical hum and buzz
Click & Pop Remover
Remove vinyl clicks and pops
Plosive Remover
Reduce explosive breath sounds
Sibilance Reducer
Soften harsh sibilant sounds
Mouth Click Remover
Remove mouth click sounds
Room Reverb Remover
Reduce unwanted room reverb
Wind Noise Remover
Reduce wind noise in recordings
Audio Recording (15)
Voice Recorder
Record your voice in browser
Microphone Recorder
Record from any microphone
Browser Tab Recorder
Record audio from browser tabs
System Audio Recorder
Record system audio output
Streaming Audio Recorder
Record streaming audio from the web
Scheduled Recorder
Schedule audio recordings
Voice Memo
Quick voice memo recording
Podcast Recorder
Record podcast episodes with chapters
Interview Recorder
Record interviews in high quality
Song Recorder
Record songs with instrument separation
Loop Recorder
Record and layer audio loops
Quick Sound Capture
Capture any playing audio instantly
Record with Effects
Record with real-time effects applied
Multi-Track Recorder
Record multiple tracks simultaneously
Microphone/Speaker Test
Test your microphone input and speaker output levels
Audio Analysis & Metering (27)
Waveform Visualizer
Visualize audio waveforms in real-time
Spectrum Analyzer
Analyze frequency spectrum
Spectrogram Viewer
View time-frequency spectrograms
Frequency Analyzer
Detailed frequency analysis
Phase Meter
Check stereo phase correlation
Correlation Meter
Measure stereo correlation
Goniometer / Vectorscope
Visual stereo image analysis
Loudness Meter (LUFS)
Measure integrated loudness in LUFS
True Peak Meter
Measure true peak levels
RMS Meter
Measure RMS audio levels
VU Meter
Classic VU meter visualization
PPM Meter
Peak program meter
Dynamic Range Meter
Measure audio dynamic range
Crest Factor Meter
Measure peak-to-RMS ratio
THD+N Analyzer
Total harmonic distortion analysis
Frequency Counter
Detect fundamental frequency
BPM Detector
Detect beats per minute
Key Detector
Detect musical key of audio
Chord Detector
Detect chord progressions
Pitch Analyzer
Analyze pitch and intonation
Harmonic Analyzer
Analyze harmonic content
Transient Analyzer
Analyze audio transients
Stereo Image Analyzer
Analyze stereo width and balance
Loudness Range (LRA) Meter
Measure loudness range
Loudness Histogram
Visualize loudness distribution
3D Audio Visualizer
3D visualization of audio data
Waveform Video Export
Export an animated waveform video from audio
Audio Extraction (5)
Audio Generation (22)
Tone Generator
Generate pure sine wave tones
White Noise Generator
Generate white noise
Pink Noise Generator
Generate pink noise for testing
Brown Noise Generator
Generate brown noise for relaxation
Sine Wave Generator
Generate precise sine waves
Square Wave Generator
Generate square waves
Sawtooth Wave Generator
Generate sawtooth waves
Triangle Wave Generator
Generate triangle waves
Pulse Wave Generator
Generate variable pulse waves
Chirp Generator
Generate frequency sweep chirps
Sweep Tone Generator
Generate frequency sweeps
Warble Tone Generator
Generate warble test tones
Binaural Beat Generator
Generate binaural beats for focus
Isochronic Tone Generator
Generate isochronic tones
Solfeggio Frequency Generator
Generate Solfeggio healing frequencies
432 Hz Generator
Generate 432 Hz tuning frequency
528 Hz Generator
Generate 528 Hz love frequency
Test Tone Generator
Generate professional test tones
Frequency Sweep Generator
Generate logarithmic/linear sweeps
Impulse Response Generator
Generate synthetic impulse responses
Click Track Generator
Generate metronome click tracks
Metronome
Adjustable BPM metronome with accents
Music Tools (24)
BPM Calculator
Calculate beats per minute from taps
Tap Tempo
Tap to find the tempo
Delay Time Calculator
Calculate delay times from BPM
Reverb Time Calculator
Calculate reverb pre-delay and decay
Note Frequency Calculator
Convert musical notes to frequencies
Interval Calculator
Calculate musical intervals
Chord Calculator
Generate chords from root notes
Scale Generator
Generate musical scales
Chord Progression Builder
Build and preview chord progressions
Circle of Fifths Tool
Interactive circle of fifths reference
Key Signature Identifier
Identify key signatures
Time Signature Calculator
Work with time signatures
Sample Rate Calculator
Calculate sample rate requirements
Bit Depth Calculator
Calculate bit depth needs
Audio File Size Calculator
Estimate audio file sizes
Streaming Bitrate Calculator
Calculate streaming bandwidth needs
MIDI Note to Frequency
Convert MIDI note numbers to frequencies
Frequency to MIDI Note
Convert frequencies to MIDI notes
Cents Calculator
Calculate pitch in cents
Playback Speed Calculator
Calculate speed change ratios
Pitch Shift Calculator
Calculate semitone shifts
Musical Transpose Tool
Transpose music to different keys
Guitar Tuner
Online guitar tuner with pitch detection
Instrument Tuner
Universal instrument tuner
Channel & Utility (16)
Channel Mixer
Mix and balance audio channels
Left/Right Channel Swapper
Swap left and right channels
Channel Inverter
Invert audio channel polarity
Channel Isolator
Isolate left or right channel
Mid/Side Processor
Process mid and side separately
Panning Tool
Adjust stereo pan position
Balance Adjuster
Adjust left/right balance
DC Offset Remover
Remove DC offset from audio
Phase Inverter
Invert phase 180 degrees
Polarity Checker
Check and fix polarity issues
Audio Comparator
Compare two audio files
Audio Diff Tool
Find differences between audio files
Audio Overlay Mixer
Overlay multiple audio files
File Splitter by Duration
Split audio by time intervals
File Splitter by Silence
Split audio at silent points
Batch File Renamer
Rename audio files in batches
Podcast & Creator (20)
Podcast Loudness Normalizer
Normalize podcasts to -16 LUFS
Podcast Intro Maker
Create podcast intro music
Podcast Outro Maker
Create podcast outro music
Ad Jingle Creator
Generate short ad jingles
Voiceover Processor
Process voiceovers for clarity
Show Notes Timestamp Generator
Generate timestamps for show notes
Podcast Chapter Marker Tool
Add chapter markers to podcasts
ID3 Tag Editor
Edit metadata tags for podcasts
Podcast Cover Art Generator
Generate podcast cover images
Transcript Timestamp Sync
Sync transcripts with audio timestamps
Background Music Matcher
Find matching background music
SFX Library Search
Search and preview sound effects
Voice Enhancer
Enhance voice recordings
Podcast Trailer Maker
Create podcast trailers
Multi-Guest Leveler
Balance levels for multiple guests
Noise Gate for Podcasts
Tailored noise gate for podcasting
Plosive Fixer
Fix plosives in voice recordings
Sibilance Fixer
Reduce harsh sibilance in speech
Room Tone Generator
Generate matching room tone
Filler Word Remover
Detect and remove filler words
Accessibility (9)
Audio Description Tool
Add audio descriptions for video
Text to Speech
Convert text to spoken audio
Speech to Text
Transcribe audio to text
Subtitle Sync Tool
Sync subtitles with audio
Audio Speed Slow Down
Slow audio for comprehension
Clear Speech Enhancer
Enhance speech intelligibility
Hearing Aid Simulator
Simulate hearing aid processing
Hearing Aid Frequency Reference
Frequency guide for hearing aids
Podcast Transcript Timer
Time transcripts to audio
Audio Metadata & Technical (14)
Audio Metadata Editor (ID3 Tags)
Edit title, artist, album, and other tags
Audio Thumbnail Generator
Generate waveform thumbnails
Audio Fingerprint Generator
Generate audio fingerprints
Audio Hash Generator
Generate perceptual audio hashes
Audio Format Detector
Detect audio format details
Audio Codec Identifier
Identify audio codec information
Audio Watermark Adder
Add invisible watermarks to audio
Silence Statistics Calculator
Calculate silence statistics
Audio Bitrate Reference
Reference guide for audio bitrates
Sample Rate Reference
Reference guide for sample rates
Codec Compatibility Reference
Codec compatibility matrix
Loudness Standards Reference
Loudness standards reference
Streaming Platform Loudness Guide
Platform-specific loudness targets
Scale Reference Player
Play and reference musical scales