Audio & video workbench
Audio & Video Tools
50 browser-local audio and video converters and editors. The self-hosted FFmpeg.wasm core loads only after you start; files are never uploaded.
Format conversion
Format conversion
Audio to MP3 Converter
Convert common audio files to widely compatible MP3 with a chosen bitrate, entirely in your browser.
Audio to WAV Converter
Decode audio into uncompressed 16-bit PCM WAV at 22.05, 44.1 or 48 kHz.
Audio to OGG Vorbis Converter
Encode audio as OGG Vorbis with an adjustable quality level for open-format playback.
Audio to FLAC Converter
Create a lossless FLAC copy with a selectable compression level without sending audio away.
Audio to AAC Converter
Encode audio to a raw ADTS AAC file at a controlled bitrate.
Audio to M4A Converter
Wrap newly encoded AAC audio in an M4A container for broad phone and desktop support.
Audio to Opus Converter
Encode speech or music to efficient Opus audio in an OGG container.
Video to MP4 Converter
Transcode video to H.264/AAC MP4 with adjustable quality and browser-friendly pixel format.
Video to WebM Converter
Convert video to VP8/Opus WebM with a selectable quality target.
Video to MOV Converter
Create an H.264/AAC QuickTime MOV file locally with adjustable CRF quality.
Video to MKV Converter
Transcode video to an H.264/AAC Matroska file without uploading it.
Video to GIF Converter
Turn a short video into an animated GIF with chosen frame rate and width.
Extract Audio from Video
Extract and encode a video soundtrack as compact AAC audio in an M4A file.
Video to MP3 Converter
Save the soundtrack from a video as an MP3 at 96–320 kbps.
Video to WAV Converter
Decode a video soundtrack to editing-ready 16-bit PCM WAV.
Audio editing
Audio editing
Audio Trimmer
Cut a precise section from an audio file using start time and duration.
Merge Two Audio Files
Join exactly two audio files in order and normalize them to one MP3 stream.
Audio Volume Adjuster
Raise or lower audio gain by a measured decibel value.
Audio Loudness Normalizer
Normalize perceived loudness to a chosen integrated LUFS target.
Audio Fade-In Maker
Apply a linear fade from silence at the start of an audio file.
Audio Fade-Out Maker
Fade audio to silence from a chosen start time over a chosen duration.
Reverse Audio
Reverse an audio track from end to beginning and export it as MP3.
Audio Speed Changer
Change playback speed from 0.5× to 2× while preserving pitch.
Audio Pitch Shifter
Shift pitch by up to one octave while keeping the original duration close to unchanged.
Mono / Stereo Audio Converter
Downmix audio to mono or produce a two-channel stereo output.
Audio Sample Rate Converter
Resample audio to 22.05, 44.1 or 48 kHz and export MP3.
Audio Bitrate Converter
Re-encode audio as MP3 at a specific constant target bitrate.
Audio Silence Remover
Remove sustained quiet sections using a threshold and minimum silence duration.
Audio Loop Maker
Repeat an entire audio file two to ten times into one MP3.
Audio Waveform Image
Render the complete audio waveform as a downloadable PNG image.
Video editing
Video editing
Video Trimmer
Cut a video interval by start time and duration, then re-encode it to MP4.
Merge Two Videos
Join exactly two compatible video clips in sequence and export one MP4.
Video Compressor
Reduce MP4 size using adjustable H.264 CRF and a maximum output width.
Video Resizer
Resize video to exact even pixel dimensions for a specific canvas.
Video Cropper
Crop a rectangular region from every frame using pixel coordinates.
Rotate Video
Rotate video clockwise by 90, 180 or 270 degrees.
Flip Video
Mirror video horizontally, vertically or in both directions.
Video Speed Changer
Speed up or slow down video and audio together from 0.5× to 2×.
Reverse Video
Reverse both video frames and the audio track, then export MP4.
Remove Audio from Video
Remove all audio streams from a video and create a silent MP4.
Add Audio to Video
Combine one video and one audio file, stopping at the shorter stream.
Extract Frames from Video
Extract PNG frames at a chosen time interval, with a hard maximum of 60 images.
Video Thumbnail Maker
Capture one video frame at a precise time and save it as PNG.
Video Frame Rate Converter
Convert video to a fixed output frame rate from 12 to 60 fps.
Video Bitrate Converter
Encode video at a selected target bitrate with bounded maxrate and buffer.
Video Aspect Ratio Converter
Fit video into 16:9, 4:3, 1:1 or 9:16 with centered padding instead of stretching.
Video Boomerang Maker
Append a reversed copy of a clip to create a forward-and-back boomerang loop.
Grayscale Video Filter
Convert every video frame to grayscale while retaining the audio track.
Video Fade-In Maker
Fade video from black and audio from silence over a chosen opening duration.
Video Fade-Out Maker
Fade video to black and audio to silence from a chosen time.
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