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Audio Converters & Editors
Convert, cut, join, compress and edit MP3, WAV, M4A, OGG, FLAC and other audio. 99 free tools that run in your browser, no sign-up needed.
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Screen RecorderRecord your screen with mic and system audio.Audio to TextTranscribe MP3, WAV and M4A recordings to text in your browser with Whisper. Export TXT, SRT, DOCX.Audio ConverterConvert MP3, WAV, M4A, OGG and FLAC to MP3 or WAV in batch, right in your browser.Audio CutterTrim MP3 and audio files, add fades and make ringtones.Audio JoinerMerge MP3 and other audio files into one track with crossfade.WAV to MP3Convert WAV files to MP3 at 128, 192 or 320 kbps, in batches.Voice RecorderRecord and trim audio in your browser.MP3 to WAVConvert MP3 files to WAV in batches.Audio Speed ChangerSpeed up or slow down audio, with or without pitch change.Audio Pitch ChangerShift the pitch of a song or recording up or down without changing tempo.Audio Volume Booster & NormalizerMake audio louder, normalize peaks or loudness, with a limiter against clipping.Clear Audio RecorderRecord clean audio with noise suppression and gain control.Sound Level MeterEstimate noise level in decibels using your microphone.Audio ReverserReverse any audio file and play it backwards, then download the result as WAV.Hearing TestCheck your hearing by ear and frequency, plot an audiogram and find your upper frequency limit.Text to Morse AudioTurn text into Morse code sound at any WPM with Farnsworth timing, then play it or save a WAV.Audio Bitrate CalculatorWork out audio file size from bitrate and length, WAV size, or the bitrate for a target size.Audio Spectrum AnalyzerLive FFT spectrum analyzer for your microphone or an audio file, with dominant frequency and note.Subwoofer Bass TestTest your subwoofer and bass response with 10–200 Hz tones, presets and a low-frequency sweep.M4A to MP3Convert M4A, AAC and iPhone voice memos to MP3 in batch, privately in your browser.Voice ChangerRecord or upload your voice and make it chipmunk, deep, robot, alien, radio or echo. Save as WAV.Ringtone MakerCut the best 15–40 seconds of any song, add fades and save it as an MP3 ringtone.OGG to MP3Convert OGG Vorbis and Opus audio to MP3 in batch, keeping tags. Free, no upload.FLAC to MP3Convert FLAC to MP3 at up to 320 kbps, keeping tags and album art. Batch, no upload.AAC to MP3Convert AAC and M4A audio to MP3 in batch, at 128 to 320 kbps. Free, no upload.OPUS to MP3Convert OPUS audio and voice messages to MP3 in batch, at 64 to 320 kbps. No upload.Audio NormalizerNormalize audio to a peak level or a LUFS loudness target, in batch, and save as WAV or MP3.Audio Noise ReducerRemove background hiss, hum and room noise from a recording using a noise profile, then save WAV.Audio Fade In and OutAdd a smooth fade in and fade out to any song or recording, then save it as MP3 or WAV.Audio Equalizer10-band EQ for audio files: boost bass, clarify vocals or tame treble, then save as MP3 or WAV.Audio MixerMix up to 4 audio tracks with volume, pan, start offsets and fades, then save the mix as MP3 or WAV.Waveform Image GeneratorTurn any song or recording into a waveform image: bars, mirror or line, as PNG or SVG.8D Audio ConverterMake any song 8D: sound circles around your head with reverb. Preview live, save MP3 or WAV.MIDI PlayerPlay MIDI files in your browser with a piano roll, tempo control, track mute and WAV export.Audio LooperLoop any part of a song seamlessly with a crossfade, repeat it N times or to a length, export.Audio Sample Rate ConverterResample audio to any rate from 8 to 96 kHz and change bit depth. WAV or MP3 output.Audio Spectrogram GeneratorTurn any audio file into a spectrogram image: FFT size, color maps, log or linear scale, PNG export.Audio SplitterSplit audio into equal parts, fixed-length pieces or at silences, and download a ZIP.Bass BoosterBoost the bass of any song with a low-shelf EQ and limiter, compare A/B, export MP3 or WAV.MP3 CompressorMake MP3 files smaller: re-encode at a lower bitrate, mono or sample rate, or fit a target size.MP3 Tag EditorEdit MP3 ID3 tags: title, artist, album, year, genre, track and album art, one file or many.Nightcore MakerSpeed up and pitch up any song into nightcore, add bass boost, save MP3/WAV or a cover video.Slowed and Reverb GeneratorMake slowed + reverb versions of any song: speed, reverb, room size and bass, export MP3/WAV.Stereo to Mono ConverterMix stereo audio to mono, extract the left or right channel, or swap channels. WAV or MP3.Tab Audio RecorderRecord audio from a browser tab or your system, mix in the mic, save WebM, WAV or MP3.WMA to MP3Convert WMA files to MP3 at 128-320 kbps or VBR, keeping tags. Batch convert, no upload.Audio to MIDI ConverterTurn a piano, guitar or voice recording into MIDI notes with AI, preview the piano roll and save a .mid file.Auto-Tune VoicePitch-correct singing to a key and scale, from natural to robotic T-Pain style, with a pitch graph.LUFS MeterMeasure integrated LUFS, true peak and loudness range of a song or video against Spotify and YouTube targets.MIDI to MP3Render MIDI files to MP3 with General MIDI SoundFont instruments, tempo, transpose and reverb.Online Audio EditorEdit audio in your browser: cut, copy, paste, fade, normalize, effects, markers, undo. Export MP3/WAV.Online Audio MasteringMaster songs automatically to -14 or -9 LUFS with EQ, multiband compression and a true-peak limiter.Podcast Audio EnhancerOne-click voice cleanup: noise reduction, de-ess, EQ, compression and -16 LUFS loudness.Subwoofer Box CalculatorSealed or ported sub box volume, port length for a tuning frequency and a panel cut list.Baby Monitor (Sound Alert)Turn a spare phone or laptop into a sound-activated baby monitor with alerts and a wake-up log.Dog Training ClickerOnline dog clicker: tap the big button for a crisp click, adjust tone and volume, time treats and sessions.Speaker Impedance CalculatorTotal ohms for 2-8 speakers in series, parallel or series-parallel, with amp check and diagram.8-Bit Sound Effect GeneratorMake retro game sounds: coin, jump, laser, explosion, power-up. Tweak, mutate and export WAV.Add Reverb to AudioAdd room, hall, plate or cathedral reverb to any audio file, preview live, export WAV or MP3.Audio Effects StudioAdd chorus, flanger, phaser, tremolo, distortion and bitcrusher effects to audio. Export WAV/MP3.Audio Translator to EnglishTranslate speech in audio or video files from 90+ languages into English text, with SRT export.Add Background Music to VoiceMix a voice recording with background music: auto-ducking, intro/outro, fades, loudness, MP3.Speaker Crossover CalculatorPassive 2-way and 3-way crossover capacitor and inductor values, 1st to 4th order.Karaoke PlayerSing along to any song: vocal reduction, key change, synced LRC lyrics, mic and recording.Lofi ConverterMake any song lofi: slow it down, add warmth, vinyl crackle, tape wobble, reverb and rain.Loop StationLive looper pedal in your browser: record and overdub 4 synced mic loops to a BPM grid.Online MIDI EditorPiano-roll MIDI editor: open or create .mid files, draw notes, set instruments and tempo, play and save.Morse Code Audio DecoderDecode Morse code from your mic or an audio file with auto tone and WPM detection.Multitrack Audio RecorderRecord overdubs on up to 8 tracks with a metronome, then mix down to WAV or MP3.Online Audio PlayerPlay your MP3, FLAC, WAV, OGG and M4A files with a playlist, EQ, gapless, speed and sleep timer.Online OscilloscopeReal-time audio oscilloscope for mic, line-in or files: time/div, volts/div, trigger, XY mode.Online ThereminPlay a theremin with your mouse, finger or webcam: X sets pitch, Y sets volume, with vibrato and echo.Playback Speed CalculatorHow long a video, audiobook or podcast takes at 1.25×, 1.5×, 2× and the speed you need.Presentation RecorderRecord narrated slides from a PDF or images with mic, webcam bubble and slide timings.Sound IdentifierIdentify sounds from your mic or an audio file: dog barks, sirens, speech, music and 500+ more.Soundboard MakerBuild your own soundboard: upload or record clips, set labels, colors and hotkeys, save locally.Streaming Bitrate CalculatorBest OBS bitrate for your resolution, fps, codec and platform, plus the upload speed you need.Voice Pitch AnalyzerMeasure your speaking pitch: average Hz, pitch range and variation over time on a graph.Add Echo to AudioAdd echo or delay to audio: ms or BPM-synced time, feedback, wet/dry, ping-pong; export WAV/MP3.Animal Sounds BoardTap 60 animals to hear their sounds, learn a fun fact about each, and play a guess-the-sound quiz.Audio Bit Depth ConverterConvert WAV and FLAC between 8, 16, 24 and 32-bit (float) with TPDF dither and noise shaping.Audio File InfoCheck an audio file's codec, bitrate, sample rate, bit depth, channels, length, tags and peak.Audio Low-Pass and High-Pass FilterApply low-pass, high-pass, band-pass or notch filters to audio and see the response curve live.Audio Compressor and LimiterCompress or limit audio files online: threshold, ratio, attack, release, knee, makeup and a GR meter.M4B to MP3Convert M4B audiobooks to MP3 with tags and cover, or split them into one MP3 per chapter.Media Duration CalculatorDrop audio and video files to get each length and the total runtime, with sorting and CSV export.MIDI to WAVRender MIDI files to WAV with General MIDI SoundFonts or your own .sf2, at 44.1 or 48 kHz.Mono to Stereo ConverterTurn mono audio into stereo: dual mono, comb widening or Haas delay, with a mono-compatibility check.MP3 to M4RTurn MP3s into iPhone M4R ringtones: pick the best 30-40 s, add fades, batch convert.Virtual Singing BowlStrike or rub the rim of a synthesized Tibetan singing bowl in 7 pitches, with sustain and loop.Speaker Wire Gauge CalculatorFind the right AWG speaker wire for any run length, impedance and allowed power loss.Stereo Channel SplitterSplit stereo audio into left and right mono files, extract mid/side, or swap, invert and mute channels.ABX Audio TestBlind ABX listening test between two audio files, with level matching and a p-value score.M4B Audiobook MakerCombine MP3 chapter files into one M4B audiobook with chapters, cover art and author tags.Bleep Censor ToolBleep out words in audio or video: mark them on the waveform or from a transcript, then export.Lossless Audio CheckerCheck if a FLAC or WAV is truly lossless or an upscaled MP3, with a spectrogram and verdict.Online VocoderClassic robot vocoder in your browser: speak or load a voice, play the synth carrier, record.Podcast Chapters GeneratorTurn timestamps into Podcasting 2.0 JSON chapters, YouTube chapters, or ID3 chapters inside your MP3.Stream Countdown OverlayMake a "starting soon" countdown screen for OBS: pick time, colors, fonts and animation, copy the URL.
About Audio Converters & Editors
Convert between MP3, WAV, M4A, OGG, FLAC and other audio formats, and cut, join, speed up or boost recordings. MP3 is best for small, widely compatible files; WAV and FLAC keep full quality for editing.
Most used here: Screen Recorder, Audio to Text and Audio Converter.