12 free audio tools
Convert, trim, normalise and inspect audio files. Every tool lists the inputs it accepts, what it produces, its capacity and what happens to your file before you upload anything.
Convert audio files between MP3, WAV, M4A, FLAC and OGG using FFmpeg with bitrate and quality controls.
Reduce audio size by re-encoding to MP3 or AAC at a selected bitrate while preserving normal playback compatibility.
Cut audio to a selected start time and duration using FFmpeg and export the result in a common audio format.
Normalize perceived loudness using FFmpeg loudnorm processing for more consistent playback volume.
Raise or lower audio volume by a percentage and export a new MP3 or WAV file.
Join multiple audio files in upload order and export a single MP3, M4A or WAV track.
Inspect codec, sample rate, channels, duration, bitrate, tags and stream metadata using ffprobe.
Draw the waveform of a recording as a PNG or SVG in your colours, or export its peaks as JSON for a web player.
Convert uncompressed WAV audio to compact MP3 with configurable audio quality.
Convert M4A audio to MP3 for broad compatibility across players and devices.
Convert OGG audio to MP3 with FFmpeg-based transcoding, bitrate control and batch processing.
Convert common audio formats to WAV for editing, archiving and compatibility workflows.
Other file types
Convert, compress, merge, split, sign, protect and clean PDF files.
Resize, compress, convert, upscale and strip metadata from photos.
Move between Word, Excel, PowerPoint, HTML and plain text.
Convert, trim, compress and resize video, or pull audio and frames out of it.
Create and extract ZIP, TAR and GZIP archives safely.
Convert between CSV, JSON, XLSX, XML and YAML.
Clean, compare, count and transform text.
Hashes, encoders, JWTs, regex and formatting helpers.
The odds and ends: QR codes, colour tools, file inspection.