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Conversor de áudio

Converta qualquer arquivo de áudio que seu navegador consiga decodificar — MP3, WAV, FLAC, M4A/AAC, OGG — para MP3 (escolha o bitrate) ou WAV sem perdas. Tudo roda localmente: sem upload, sem fila, sem limites.

Arraste um arquivo de áudio aqui ou clique para escolher

Convertido localmente no navegador — nada é enviado

Conversão local, explicada com honestidade

Escolha MP3 para arquivos pequenos que tocam em qualquer lugar (192 kbps é transparente para a maioria dos usos) e WAV para edição, sampling e máxima compatibilidade. Toda a conversão acontece no navegador com a Web Audio API e um codificador MP3 em JavaScript puro: os arquivos nunca são enviados, não há limite de tamanho além do seu aparelho e a página funciona offline depois de carregada. Precisa encurtar o arquivo antes? O cortador de áudio corta antes de converter e o normalizador de volume nivela o loudness.

Perguntas frequentes

A conversão acontece mesmo no meu navegador?

Sim — o arquivo é decodificado com a Web Audio API e recodificado para MP3 por um port em JavaScript do codificador LAME, tudo no seu aparelho. Nada é enviado, por isso não há fila, nem teto de tamanho, nem questão de privacidade.

Qual qualidade de MP3 devo escolher?

192 kbps é o ponto ideal para a maioria dos usos — transparente para a maioria dos ouvintes com metade do tamanho de 320. Escolha 320 kbps para arquivar ou escuta crítica, e 128 kbps para gravações de voz e tamanho mínimo.

Converter reduz a qualidade do áudio?

Converter para MP3 tem perdas: o codificador descarta dados que julga inaudíveis. Em 192–320 kbps a diferença para o original é inaudível para a maioria das pessoas. Converter de um formato com perdas para outro (ex.: OGG para MP3) acumula duas gerações de perda — serve para o dia a dia, evite para masters.

Quais formatos de entrada funcionam?

Tudo que seu navegador decodifica: MP3, WAV, AAC/M4A, OGG e, na maioria dos navegadores, FLAC. Navegadores não decodificam WMA nem formatos exóticos — para esses é preciso um conversor de desktop.

Try Our Other Audio Tools

Online Tone Generator

Generate single tones with precise frequency control. Perfect for quick audio testing and tuning.

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Multiple Tone Generator

Play multiple frequencies simultaneously with independent volume and panning controls.

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Frequency Sweep Generator

Create linear or exponential frequency sweeps for speaker testing and room acoustics analysis.

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Binaural Beats Generator

Generate binaural beats for meditation, focus, and relaxation. Requires headphones for proper effect.

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DTMF Tone Generator

Generate telephone dial pad tones (Dual Tone Multi Frequency). Interactive touch-tone dial pad.

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Online Metronome

Professional metronome with tap tempo, time signatures, subdivisions, and tempo trainer for musicians.

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BPM Counter

Tap along to any song to find its tempo in beats per minute. Includes tempo markings reference.

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Chord Player

Hear major, minor, diminished, and seventh chords in every key. Block chords or arpeggios.

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Chord Progression Player

Hear classic progressions like I-V-vi-IV and 12-bar blues in any key at any tempo.

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Online Piano

Free browser piano with 3 octaves, note names, and computer keyboard support.

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Noise Generator

Generate white, pink, and brown noise for sleep, focus, tinnitus relief, and speaker burn-in.

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Instrument Tuner

Reference tuning notes for guitar, bass, ukulele, violin, cello, and more at concert pitch (A440).

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Subwoofer Test

Test your subwoofer with a 60-second frequency sweep (150Hz-1Hz) and individual bass test tones.

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Hearing Test

Test your hearing range from 8kHz to 20kHz. Find your hearing age and compare with averages.

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Solfeggio Frequencies

Ancient healing tones including 528Hz (DNA repair). For meditation, chakra activation, and spiritual healing.

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Speaker Balance Test

Test stereo balance with panning control and left/right channel testing. Perfect for speaker setup.

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Speaker Phase Test

Check speaker wiring polarity by comparing in-phase and out-of-phase test signals.

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Audio Latency Test

Measure your Bluetooth or system audio delay in milliseconds with a click-and-flash sync test.

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Spectrum Analyzer

Real-time frequency analysis of your microphone input with a live log-frequency display.

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Decibel Meter

Measure approximate sound levels with your microphone - live dB with min/avg/max tracking.

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Mic Test

Check your microphone in seconds: live waveform, level meter, and record-and-playback check.

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Interval Ear Trainer

Learn to recognize musical intervals by ear with quiz mode, score tracking, and song mnemonics.

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Pitch Pipe

Chromatic pitch pipe with all 12 notes across 3 octaves. Perfect for singers, choirs, and a cappella groups.

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Shepard Tone

Experience the auditory illusion of an infinitely ascending or descending tone. Mind-bending psychoacoustic phenomenon.

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Mosquito Tone

Can you hear the mosquito tone? High-frequency test (15-20kHz) that only young people can hear. Find your hearing age!

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Soundscape Builder

Create relaxing ambient soundscapes with singing bowls, nature sounds, and binaural beats.

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Fix My Speaker

Three sound modes to clean a muffled speaker: 165 Hz water eject, dust-shaking sweeps, and vibration.

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Water Eject Sound

Push water out of a wet phone or watch speaker with a pulsed 165 Hz tone - the same method Apple Watch uses.

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Dog Whistle

Adjustable high-frequency whistle (8-22 kHz) for dog training - clearly audible to dogs, silent to most adults.

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Isochronic Tones

Rhythmic pulsed tones across delta to gamma ranges. Stronger than binaural beats and works without headphones.

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Perfect Pitch Test

Name 12 random notes with no reference tone and find out if you have absolute pitch or great pitch memory.

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Vocal Range Test

Sing your lowest and highest notes and get your range plus voice type - bass to soprano. Mic-based, nothing uploaded.

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Hearing Age Test

Find the highest frequency you can hear (8-20 kHz) and see how old your ears test. Takes one minute.

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Vocal Remover

Instant karaoke via center-channel cancellation - free, unlimited, and processed locally.

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Voice Recorder

Record from your microphone and download as WAV - no signup, nothing uploaded.

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Volume Normalizer

Normalize any file to a LUFS target with true-peak protection instead of silent clipping.

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Drum Machine

16-step beat maker with synthesized 808-style drums, swing, and shareable pattern links.

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Audio Analyzer / LUFS Meter

Drop a file and get integrated LUFS, true peak, RMS, and a waveform - measured locally, nothing uploaded.

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Chromatic Tuner

Microphone tuner with a cents needle - play any note on any instrument and tune to ±5 cents.

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Headphone Test

Five-minute headphone checkup: channels, wiring polarity, bass and treble reach, and driver distortion.

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Surround Sound Test

Send noise to each 5.1 channel - fronts, center, surrounds, and subwoofer - and catch swapped or dead speakers.

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