Audio Tools
Convert, compress, trim and edit audio between MP3, WAV, AAC, OGG, FLAC and M4A right in your browser. Powered by ffmpeg.wasm — nothing is uploaded.
52 free tools
WAV to MP3 Converter
Convert WAV audio to MP3 online for free. Shrink large uncompressed WAV files into small, shareable MP3s right in your browser — nothing is ever uploaded.
MP3 to WAV Converter
Convert MP3 to WAV online for free. Decode compressed MP3 files to uncompressed 16-bit PCM WAV audio right in your browser — nothing is ever uploaded.
MP3 to OGG Converter
Convert MP3 to OGG Vorbis online for free. Re-encode MP3 audio to open, royalty-free OGG right in your browser — nothing is ever uploaded to a server.
OGG to MP3 Converter
Convert OGG to MP3 online for free. Turn OGG Vorbis audio into universally playable MP3 files right in your browser — nothing is ever uploaded to a server.
M4A to MP3 Converter
Convert M4A to MP3 online for free. Turn Apple M4A/AAC audio into universally playable MP3 files right in your browser — nothing is ever uploaded.
AAC to MP3 Converter
Convert AAC to MP3 online for free. Turn AAC audio into universally compatible MP3 files right in your browser — nothing is ever uploaded to a server.
FLAC to MP3 Converter
Convert FLAC to MP3 online for free. Shrink lossless FLAC audio into small, shareable MP3 files right in your browser — nothing is ever uploaded.
MP3 to M4A Converter
Convert MP3 to M4A online for free. Re-encode MP3 audio to AAC-based M4A for Apple devices right in your browser — nothing is ever uploaded.
WAV to OGG Converter
Convert WAV to OGG Vorbis online for free. Compress large WAV files into small, royalty-free OGG audio right in your browser — nothing is ever uploaded.
Compress Audio
Compress audio online for free. Reduce MP3 file size by choosing a target bitrate from 64 to 320 kbps right in your browser — nothing is ever uploaded.
Trim Audio
Trim audio online for free. Cut a clip from any audio file by setting start and end times, exported as MP3 right in your browser — nothing is ever uploaded.
Audio Volume Changer
Change audio volume online for free. Boost quiet recordings or lower loud ones from 0 to 300%, exported as MP3 in your browser — nothing is ever uploaded.
Change Audio Speed
Change audio speed online for free. Speed up or slow down audio from 0.5x to 2x without changing pitch, exported as MP3 — nothing is ever uploaded.
Audio Converter
Convert audio online for free. Turn any file into MP3, WAV, OGG, M4A or FLAC right in your browser with one tool — nothing is ever uploaded to a server.
MP3 to AAC Converter
Convert MP3 to AAC online for free. Re-encode MP3 audio to the more efficient AAC codec at your chosen bitrate, entirely in your browser — nothing is uploaded.
MP3 to FLAC Converter
Convert MP3 to FLAC online for free. Decode MP3 audio into a lossless FLAC file for archiving or editing, right in your browser — nothing is ever uploaded.
WAV to FLAC Converter
Compress WAV to FLAC online for free. Genuine lossless compression makes files about half the size with identical audio — all in your browser, nothing uploaded.
WAV to M4A Converter
Convert WAV to M4A online for free. Encode bulky WAV recordings into compact AAC audio in an M4A container, right in your browser — nothing is uploaded.
FLAC to WAV Converter
Convert FLAC to WAV online for free. Decode lossless FLAC into uncompressed 16 or 24-bit PCM WAV for editing or burning — all in your browser, nothing uploaded.
M4A to WAV Converter
Convert M4A to WAV online for free. Decode iPhone voice memos and AAC audio into uncompressed PCM WAV for editing — all in your browser, nothing uploaded.
AAC to WAV Converter
Convert AAC to WAV online for free. Decode raw AAC streams into uncompressed 16-bit PCM WAV audio right in your browser — nothing is ever uploaded.
OGG to WAV Converter
Convert OGG to WAV online for free. Decode OGG Vorbis and Opus audio into uncompressed PCM WAV for editing and playback — in your browser, nothing uploaded.
OPUS to MP3 Converter
Convert OPUS to MP3 online for free. Turn WhatsApp and Telegram voice notes into universally playable MP3 files right in your browser — nothing is uploaded.
Audio Bitrate Changer
Change audio bitrate online for free. Re-encode MP3, M4A or OGG to an exact CBR or VBR bitrate — like MP3 at 128 kbps — in your browser, nothing uploaded.
Audio Sample Rate Converter
Convert audio sample rate online for free. Resample to 8, 16, 44.1 or 48 kHz for video, speech tools or telephony — right in your browser, nothing uploaded.
Stereo to Mono Converter
Convert stereo audio to mono online for free. Mix both channels or keep only the left or right channel — right in your browser, nothing is ever uploaded.
Mono to Stereo Converter
Convert mono audio to stereo online for free. Duplicate the channel for true dual mono or add subtle Haas-delay widening — in your browser, nothing uploaded.
Merge Audio Files (Joiner)
Merge multiple audio files into one MP3 online for free. Join songs and voice notes in order, with optional crossfade — everything stays in your browser.
Audio Fade In and Out
Add smooth fade in and fade out effects to any audio file online for free. Set fade lengths in seconds and export an MP3 — nothing is ever uploaded.
Reverse Audio
Reverse any audio file online for free. Play songs, voice memos and sound effects backwards and download the result as MP3 — 100% in your browser.
Audio Pitch Changer
Change the pitch of any audio file in semitones without changing its speed. Free online pitch shifter that runs entirely in your browser — no upload.
Audio Normalizer
Normalize audio loudness online for free to broadcast and streaming standards (EBU R128 / LUFS). Runs fully in your browser — files are never uploaded.
Remove Silence from Audio
Automatically detect and cut silent gaps from recordings, podcasts and voice notes online. Adjustable threshold and gap length — 100% local, no upload.
Bass Booster
Boost the bass of any song or recording online for free. Adjustable low-frequency gain and treble control, processed entirely in your browser.
Vocal Remover (Karaoke)
Remove centered vocals from stereo songs to make karaoke tracks online. Free phase-cancellation vocal remover that runs 100% in your browser.
Slowed and Reverb Maker
Make slowed and reverb edits of any song online for free. Adjust the slow-down amount and reverb depth, then download an MP3 — no upload, no watermark.
Ringtone Maker
Cut any song into a phone ringtone online for free. Trim, fade and export iPhone M4R or Android MP3 ringtones right in your browser — no upload.
Audio Waveform Generator
Turn any audio file into a waveform image online for free. Customize colors, bars and size, then download a transparent PNG — audio never leaves your device.
Audio Spectrogram Generator
Generate a spectrogram image from any audio file online for free. Visualize frequency content over time and download a PNG — 100% in your browser.
Online Voice Recorder
Record your voice online with your microphone — free, private and unlimited. Pause, resume, preview and download recordings; nothing ever leaves your tab.
Remove Background Noise From Audio
Clean hiss, hum, air conditioning and room noise out of any recording. Two denoising modes plus a rumble filter, all running inside your browser.
Audio Equalizer (10-Band)
Shape any audio file with a 10-band graphic equalizer. Boost bass, lift vocals or fix a dull recording, then export MP3 or WAV without uploading a thing.
Split Audio by Silence
Automatically cut a long recording into separate tracks wherever it goes quiet. Ideal for tape rips, voice memos and interview sessions, with no upload.
Split Audio Into Parts
Cut an audio file into equal chunks or at your own timestamps. Great for long podcasts, lectures and upload size limits, and nothing leaves your browser.
BPM Detector
Find the tempo of any song in beats per minute. Upload nothing: the track is decoded and analysed in your browser, with alternates and a confidence score.
Song Key Finder
Work out what key a song is in, with its Camelot wheel code for harmonic mixing. Analysed in your browser using chroma and Krumhansl-Schmuckler profiles.
LUFS Loudness Meter
Measure integrated LUFS, loudness range and true peak to ITU-R BS.1770-4, and compare against Spotify, Apple Music and broadcast targets. Nothing is uploaded.
MP3 Tag Editor (ID3)
Edit the title, artist, album, year, track and cover art stored in an MP3. Writes a clean ID3v2.3 tag in your browser without re-encoding the audio.
Split Stereo Into Left and Right
Separate a stereo file into two mono tracks, one per channel. Useful for karaoke stems, dual-mic interviews and checking a faulty side, with no upload.
Nightcore Maker
Turn any song into a nightcore edit by speeding it up and raising the pitch together. Adjustable speed, optional treble sparkle, and no upload required.
8D Audio Maker
Turn any song into 8D audio that circles your head in headphones. Adjustable rotation speed, depth, stereo width and room echo, processed in your browser.
Add Background Music to Audio
Mix background music under a voiceover, podcast or narration, with automatic ducking so the speech stays clear. Both files stay inside your browser.