Audio and video
Tones, tuners, audio cutting and video conversion in your browser.
- Audio Converter Convert audio files to MP3, WAV, OGG, M4A or FLAC in your browser, or extract the sound of a video. Batch conversion, no upload, no sign-up.
- Audio Cutter Cut and trim MP3, WAV, M4A, OGG or FLAC files in your browser. Select on the waveform, add fades and export to MP3 or WAV. No upload.
- Audio Spectrum Analyzer Free online audio spectrum analyzer. See the live FFT of your microphone or an audio file, with log or linear axis, spectrogram view and peak note.
- Audio Speed and Pitch Changer Slow down or speed up an MP3 without changing the pitch, or transpose a song by semitones. Preview, then export to MP3 or WAV, all in your browser.
- BPM Tapper Find the BPM of any song by tapping along. Click, touch or press the Space bar on each beat; outlier taps are ignored for a steady tempo.
- Decibel Meter Estimate sound levels with your microphone. Relative dBFS readings with min, average (Leq), max, a 60-second graph and optional calibration.
- Guitar and Ukulele Tuner Free online guitar tuner using your microphone. Tune guitar (standard, Drop D, DADGAD, Open G), ukulele or bass, with an adjustable A4 reference.
- Metronome Free online metronome from 20 to 300 BPM with time signatures, first-beat accent and tap tempo. Precise timing that keeps steady in the browser.
- MIDI File Visualizer Open a .mid file in your browser to see it as a piano roll, play it with a simple synth, mute tracks and read its tempo, length and note count.
- Online Synthesizer Play a free online synthesizer with your mouse, touch screen, computer keyboard or MIDI keyboard. Two oscillators, ADSR envelope and a resonant low-pass filter.
- Subtitle Converter Convert subtitles between SRT, WebVTT, ASS/SSA and SBV in your browser, shift the timing in milliseconds and fix frame rate drift such as 23.976 to 25 fps.
- Tone Generator Free online tone generator. Play a sine, square, sawtooth or triangle wave at any frequency from 20 Hz to 20 kHz, or pick a musical note.
- Video Compressor Compress a video in your browser to share it by email or chat. Choose a quality or a target size in MB, lower the resolution, no upload.
- Video Frame Grabber Extract any frame of a video as a full-resolution PNG or JPG image, step frame by frame, or capture one image every few seconds as a ZIP. No upload.
- Video to GIF Turn part of an MP4, MOV or WebM video into an animated GIF in your browser, with an optimized colour palette, a size estimate and a preview.
- Video to MP3 Extract the sound of an MP4, MOV, WebM or MKV video as an MP3 file in your browser. Choose the bitrate, keep only a part, nothing is uploaded.
- Video Trimmer Trim an MP4, MOV, WebM or MKV video in your browser. Pick the start and end on a preview, cut fast without re-encoding or frame-exact. No upload.
- Vocal Remover Remove vocals from a stereo song in your browser with centre-channel cancellation, keep the bass, or roughly isolate the voice. Download as WAV or MP3.
- Volume Booster and Normalizer Increase the volume of an audio file in dB, normalize its peak or its loudness, with a limiter that prevents clipping. Export to MP3 or WAV in your browser.
- White Noise and Ambient Sound Generator Free white noise generator with pink and brown noise, a mix of layers and a sleep timer that fades out. Sound made live in your browser, no download.