Audio Tools
Read audio metadata in your browser: ID3 tags, bitrate, duration, sample rate and format for MP3, WAV and FLAC. Private, with nothing uploaded.
Audio Fade
Add a fade-in or fade-out to audio in your browser. Pick the fade length and a linear or equal-power curve, then download a WAV. Nothing is uploaded.
Audio Reverser
Reverse audio in your browser and play any clip backwards. Drop in a file, hear the reversed preview, then download it as a WAV. Nothing is uploaded.
Audio Silence Remover
Trim silence from the start and end of an audio file in your browser. Set the threshold and padding, then download a WAV. Free, private, nothing uploaded.
Audio Speed Changer
Speed up or slow down an audio file in your browser, from half speed to 2x. Download the result as a WAV. Free, fast, and nothing is uploaded.
Audio Transcriber
Transcribe audio to text in your browser with OpenAI's Whisper AI. Get timestamps, export SRT, VTT or TXT, pick a quality level. Nothing is uploaded.
Audio Trimmer
Cut and trim audio in your browser. Set a start and end time to keep just the clip you want, then download it as a WAV. Nothing is uploaded.
Audio Waveform Generator
Turn an audio file into a waveform image in your browser. Pick colors and size, then download a PNG. Free, private, and nothing is uploaded.
BPM to Delay Calculator
Find delay and reverb times in ms for any tempo. Get straight, dotted and triplet note values from whole to 1/32, plus the matching frequency in Hz.
FLAC Metadata Viewer
View FLAC metadata in your browser: sample rate, channels, bit depth, duration, total samples and Vorbis tags like title and artist. Nothing is uploaded.
MIDI File Info
Read a MIDI file's header in your browser: format, track count, ticks per quarter, tempo, time signature and track names. Nothing is uploaded.
Mono Stereo Converter
Convert audio between mono and stereo in your browser. Mix stereo down to mono or duplicate mono into two channels. Download a WAV, nothing uploaded.
MP3 Duration and Bitrate
Check an MP3's bitrate, sample rate, MPEG layer, channel mode, VBR or CBR, and estimated duration in your browser. Nothing is uploaded. Private and instant.
MP3 ID3 Tag Viewer
View the ID3 tags inside an MP3 in your browser: title, artist, album, year, genre, track and comment, plus which ID3 versions are present. Private.
Note Frequency Calculator
Convert any musical note to its frequency in Hz, or a frequency back to the nearest note and cents. Equal temperament with an adjustable A4 tuning.
Volume Normalizer
Normalize audio volume in your browser. Even out loudness by peak or RMS to a target dB level, then download a WAV. Nothing is uploaded.
WAV File Info
Read a WAV file's audio format, channels, sample rate, bit depth, byte rate and duration in your browser. Nothing is uploaded, so your audio stays private.