All 96 tools.
Every tool on AudioSaw runs entirely inside your browser tab. Your file is decoded, processed and re-encoded locally — it is never uploaded to a server, so there is no queue, no size gate behind a signup, and no copy of your audio sitting on someone else's disk. Pick the tool that matches the job; each one has the settings for that job already chosen.
Convert to MP3
MP3 is the format that plays on everything — every phone, every car stereo, every cheap MP3 player, every editing program written in the last thirty years. These convert into it from whatever you started with. All of them are lossy encodes, so work from the highest-quality source you have rather than from something already compressed.
MP4 to MP3
Pull the audio track out of a video file as MP3.
M4A to MP3
iPhone voice memos and Apple audio into universally playable MP3.
WAV to MP3
Compress a DAW bounce or recording to a shareable MP3.
FLAC to MP3
Turn a lossless archive into something a phone or car will play.
AAC to MP3
For players and car stereos that never learned to read AAC.
OGG to MP3
Vorbis audio from Discord, Telegram or game files into MP3.
Opus / WhatsApp voice note to MP3
WhatsApp and Signal voice notes into a format anything will open.
WMA to MP3
Old Windows Media libraries into something a Mac or a phone will play.
CAF to MP3
Apple Core Audio files from GarageBand and Logic, made portable.
AC3 / Dolby Digital to MP3
DVD and broadcast soundtracks, with 5.1 folded down to stereo.
MOV to MP3
Audio out of iPhone and QuickTime recordings.
AIFF to MP3
Logic and GarageBand bounces compressed for sharing.
M4B to MP3
Audiobooks out of Apple’s format and onto anything else.
Other format conversions
Conversions that are not about getting to MP3: uncompressed PCM for editing and burning, lossless FLAC for archiving, Apple-native containers, and fixed-bitrate MP3 presets when you want the decision made for you.
MP3 to WAV
Uncompressed PCM for DAW import, CD burning and samplers.
MP3 to M4A
AAC in an Apple-friendly container for iTunes and CarPlay.
MP3 to AIFF
Apple-native uncompressed audio for Logic and Final Cut.
WAV to FLAC
Lossless compression — same audio, roughly half the size.
FLAC to WAV
Decompress lossless audio for software that will not read FLAC.
WAV at 44.1 kHz, 16-bit
The CD standard, locked in — what most software assumes.
WAV to MP3 at 128 kbps
The small-file setting — right for speech, web and email.
MP3 at 320 kbps
The MP3 quality ceiling, locked in.
MP3 to MP4 with a picture
Put a picture to your audio for YouTube, Instagram or TikTok: your cover art or a generated one with the waveform. No watermark.
Video to audio
Video files are containers — the audio inside is usually AAC, and it can be lifted out without re-encoding the picture. Because everything runs locally, the video itself never leaves your machine, which matters more here than anywhere else on the site.
Cut, trim & arrange
Cutting, joining, trimming and shaping. These change the length or arrangement of a file rather than its format, and they are the ones worth chaining together — cut, then join, then fade.
Audio Editor
A multitrack timeline with live effects, automation and MIDI tracks: cut, mix, record and export, on a phone or a laptop.
Audio Cutter
Drag handles on a waveform and keep only the part you want.
Audio Joiner
Concatenate several files into one, in the order you choose.
Ringtone Maker
A 30-second clip from any song, in the format your phone wants.
Change audio speed
Slow a song or speed a podcast without shifting the pitch.
Audio Reverser
Play a file backwards — for effects, or to hear what is buried.
Fade in / fade out
Clean fades on both ends without opening an editor.
Trim silence off the ends
Top and tail a recording, leaving the middle untouched.
Auto-Cut Silence
Shorten the pauses between phrases, keeping speech natural.
Remove silence
Strip dead air out of a podcast, voice memo or voiceover.
Add audio to video
Put music or a voice-over on a video, or replace its sound. Music ducks under speech by itself, loops and fades to fit. The picture is untouched.
Fix audio out of sync
Sound late or early against the picture? Shift it by the millisecond, fix drift, or line up a separate mic recording by its waveform. The picture is untouched.
Seamless loop maker
Loop any song, sample or ambience without a click: the end found where the sound matches the start, or exact bars at the tempo, crossfaded.
Sample Slicer
Chop a break at the hits, play the slices on pads, export for SP-404 or MPC.
Loudness & channels
Loudness and channel-count fixes. Most "this file sounds wrong" problems are one of these: it is too quiet, it is louder than everything around it, it is stuck in one ear, or the sample rate does not match the project it is going into.
LUFS Loudness Normalizer
Match the loudness target Spotify, Apple or broadcast expects. Works on video too.
Normalize Audio
Bring files to a consistent level so nothing jumps out.
Amplify quiet audio
Make a too-quiet recording usable without driving it into distortion. Works on video too.
Compress an audio file
Get a file under an email, Discord or upload size limit.
Stereo to mono
Fix one-sided recordings and halve the size of voice files.
Mono to stereo
Honest dual-mono for software that insists on two channels.
Change the sample rate
Resample to match a project and stop import warnings.
Clean up & separate
Fixing what is wrong with a recording rather than converting it. Hiss, hum, dead air, a vocal you need isolated from the backing — these read the audio, decide what to keep, and write it back out. The separation tools run a neural network locally, which is slower than everything else here and still never uploads your file.
Vocal remover / karaoke
Remove the vocal from a stereo song, or isolate it, by cancelling the centre. Works on video too.
StemFlipper — stems, MIDI and playable instruments
Split a song into stems and transcribe each one to MIDI, in your browser with nothing uploaded — or on a free GPU for four stems plus samples and instruments.
AI vocal remover / stem splitter
Neural separation into a clean instrumental and acapella, running on your machine.
Remove background noise
Strip hiss, hum and fans with spectral gating, or traffic, typing and barking behind a voice with an AI denoiser. Works on video too.
EQ & bass booster
Adjust bass, mids and treble, or boost the low end, baked into the file.
Autotune / Pitch Correction
Snap a vocal to a key — subtle tuning or the hard-tuned effect.
Pitch & key changer
Shift the key up or down by semitones without changing the tempo.
De-esser
Turns down harsh "s" and "sh" sounds in a vocal, podcast or video, above the voice's own sibilance, and leaves everything else untouched.
Click and crackle remover
Clicks, pops and crackle out of vinyl and tape rips: each one rebuilt from the music either side, every other sample left exactly as it was.
Hum remover
Removes 50/60 Hz mains hum and buzz with its harmonics, following the exact frequency through the file, and leaves the voice alone.
Record & tag
Making a file rather than changing one. Record straight from a microphone, or fix the metadata that decides what your music player prints on screen.
Voice recorder
Record from your microphone in the browser — the audio never leaves your device.
Record computer audio
Record the sound a browser tab is playing, losslessly — Chrome and Edge only.
Audio to sheet music
Sing, whistle or play a melody and get it written out: notes, tempo and key, printable, with MusicXML for MuseScore.
Audio to MIDI
Turn a hummed melody or bassline into a MIDI file.
BPM Finder
Detect the tempo of a track, with half and double time shown.
Key Finder
Find the key of a song, with its Camelot code, tuning and BPM.
Chord Finder
Get the chords of a song from audio, bar by bar, and follow along.
Online Metronome
A steady click with subdivisions, tap tempo and a speed trainer.
Online Tone Generator
Any frequency, sweep or noise, left, right or both, and download it.
Microphone Test
See if your mic works, how loud and noisy it is, and hear yourself back.
Online Tuner
Tune a guitar, bass, ukulele or violin through your microphone.
Split an audio file
Cut one long recording into equal parts, fixed chunks, or at the silent gaps.
MP3 tag editor
Edit title, artist, album and cover art without re-encoding the audio.
Tap BPM
Tap along to any song to find its tempo, fitted through every tap to a tenth of a BPM, with off-beat taps ignored.
Vocal range test
Sing your lowest and highest notes and see them on a keyboard, matched to bass, baritone, tenor, alto, mezzo or soprano.
Voice & speech
Speech in and speech out, with the neural models running in your browser tab: Whisper turns a recording into text and subtitles, and Kokoro reads text aloud in a natural voice. The models download once and are cached; the audio and the text never leave your machine, which is the point for interviews, scripts and anything under NDA.
Lyrics from a song
The vocal is separated and transcribed in your browser: the words line by line, as synced LRC for karaoke and players, or SRT for a lyric video.
Transcribe audio to text
MP3, voice memo or video to text with Whisper in your browser: a transcript, SRT or VTT and speaker labels, free, nothing uploaded.
Text to speech
A free AI voice generator in your browser: type or open a PDF or Word file, 41 natural voices in 7 languages, MP3 download, no sign-up.
Voice changer (live or files)
Change your voice live through the mic, or a voice in a recording or video: deeper, higher, male to female, chipmunk, robot or radio.
EPUB or PDF to audiobook
An EPUB, PDF or TXT file to an M4B audiobook with chapters, or an MP3 per chapter, read by a free AI voice in your browser.
Speech to text (voice typing)
Talk and it types, with punctuation, in 99 languages: Whisper in your browser, so your voice is never uploaded.
AI video dubbing and translation
Translate a video's speech into English, Spanish, French, Italian, Portuguese or Hindi and have an AI voice read it over the original, timed to it, nothing uploaded.
Enhance speech
One click to a cleaner voice: AI noise removal, clarity EQ, gentle compression and podcast loudness. Works on video. A free alternative to Adobe Podcast Enhance.
Bleep out swear words
AI finds the swearing in audio or video and bleeps or mutes it, in sync.
Remove filler words
AI finds every um, uh and long pause in a podcast, lecture or video; review them in the transcript and cut them with clean joins.
Add subtitles to video
Auto captions in 99 languages with Whisper in your browser: edit them, then burn them in for TikTok and Instagram or add an SRT track. No watermark.
Voice cloning
Clone a voice from five seconds of a recording or audio file and make it say anything, free, on your own GPU, with consent.
Effects & remixes
Changing how a track moves rather than what format it holds. Speed and pitch are locked together on the slowed and nightcore pages, because that coupling is the effect people mean by those words; the speed and pitch tools separate them, which is what you want for a podcast or a key change. All of them render locally, so a whole album can go through without anything being uploaded.
Audio Effects Plugins
Run a file through free web audio plugins: fuzz, amp sims, reverbs, delays, phasers, pitch.
Slowed + Reverb Maker
Slow a song, drop the pitch with it, and put it in a room.
8D Audio Maker
Move a track slowly around your head — on headphones, it circles.
Nightcore Maker
Speed a song up and lift its pitch — nightcore and sped-up edits.
Check a file
Tools that read a file and report on it rather than change it: what format, rate and depth it really is, how loud it measures, whether it clips, and whether a FLAC or a hi-res download was made from something lower. Every figure is measured from the samples in your browser, and the methods are checked against ffprobe and ffmpeg's loudness meter.
Spectrogram viewer
See every frequency of any audio file over time, zoom into any moment, read the exact frequency and level, and save it as a PNG.
Fake lossless detector
Is that FLAC, WAV or 320 kbps MP3 really what it says? Finds an MP3's cutoff, padded 24-bit and upsampled hi-res, with the spectrum to see it.
Audio file info
Bitrate, sample rate, bit depth and the bits really used, LUFS, true peak, clipping and DC offset for any audio file, many at once.
For a specific app or device
Presets for a specific destination. Each of these targets one program or device that is fussy about what it accepts, and applies the exact spec that program wants, so the import works the first time.
Audio for Whisper
16 kHz mono WAV — exactly what Whisper wants, in one click.
Prep audio for transcription
The format each transcription service actually wants.
Podcast prep
Normalize, mono mixdown and MP3 encode in a single pass.
Compress audio for Discord
Fits under the upload limit without you doing the maths.
Audio for CapCut
The format CapCut imports without complaint.
Audio for DaVinci Resolve
The format Resolve always imports, no conform errors.
M4A to WAV for Audacity
Skip the FFmpeg install Audacity keeps asking you for.
WAV for SP-404 / MPC
The exact spec hardware samplers need, or they fail silently.