Free Online Audio Tools

Audio to MP3Convert supported audio files to MP3 in your browser with 128, 192, 256 or 320 kbps output quality. WAV to MP3Convert WAV audio to a smaller, widely compatible MP3 file with selectable bitrate. M4A to MP3Convert M4A or AAC audio to MP3 locally with selectable output bitrate. OGG to MP3Convert OGG or Opus audio to a compatible MP3 file in your browser. MP4 to MP3Extract the audio from an MP4 video and encode it as MP3 with selectable bitrate. MP3 to WAVDecode an MP3 locally and save it as a compatible uncompressed WAV audio file. Audio CompressorCompress audio file size to MP3 using target MB or bitrate, sample-rate and channel controls, loudness normalization and optional gentle dynamics processing. Audio CutterTrim browser-decodable audio with a visual waveform, draggable range and fades. MP3 source files return MP3; other supported audio exports as WAV. Audio MergerCombine audio files with optional gaps or crossfades. When every source is MP3 the merged result returns MP3; otherwise it exports WAV. Audio Speed ChangerChange audio playback speed from half-speed to double-speed. MP3 source files return MP3; other supported audio exports as WAV. Volume BoosterAdjust audio volume, prevent clipping or normalize the peak. MP3 source files return MP3; other supported audio exports as WAV. Remove VocalsReduce centre-panned vocals in suitable stereo music using channel cancellation. MP3 source files return MP3; other supported audio exports as WAV. Voice RecorderRecord microphone audio in the browser with pause/resume, recording timer, live input meter, preview, discard and WAV download controls. Text to SpeechRead text aloud using voices installed in the visitor browser with rate, pitch, pause, resume and stop controls. Audio NormalizerNormalize audio with EBU R128 loudness targeting using the bundled FFmpeg loudnorm filter and configurable target loudness/true peak. Audio Fade In / OutApply real audio fade-in and fade-out envelopes with durations calculated against the source track length. Audio Silence RemoverRemove leading, trailing or repeated long quiet sections using configurable dB threshold and minimum silence duration. Reverse AudioReverse an audio track sample order locally and encode the result as MP3. Audio Channel ConverterConvert audio to mono or stereo with standard FFmpeg channel mixing and selectable MP3 bitrate. Audio Sample Rate ConverterResample audio to 22.05, 32, 44.1, 48 or 96 kHz with selectable output bitrate. Audio Metadata ViewerInspect local audio duration, codec, sample rate, channel layout, file size and container information using the bundled media engine. Audio Waveform GeneratorDecode audio locally and render a high-resolution waveform PNG with size, foreground, background and transparent-background controls. Audio to FLACConvert supported audio into lossless FLAC using the bundled local FFmpeg encoder. Audio to AACConvert supported audio into AAC inside an M4A container with selectable bitrate for broad device compatibility. Audio to OGGConvert supported audio to OGG Vorbis locally with selectable quality.