Free Online Audio Tools
Convert MP3, WAV, AAC, OGG, and FLAC. Trim, merge, compress, and edit audio files online for free. No uploads, all processing happens in your browser.
All Free Online Audio Tools
Edit Audio Metadata
Edit ID3 tags and metadata for MP3, FLAC, OGG and more
MP3 to WAV
Convert MP3 files to uncompressed WAV format
WAV to MP3
Compress WAV files to MP3 format
MP3 to AAC
Convert MP3 audio to AAC format
AAC to MP3
Convert AAC audio files to MP3
MP3 to OGG
Convert MP3 to OGG Vorbis format
OGG to MP3
Convert OGG Vorbis files to MP3
FLAC to MP3
Convert lossless FLAC to compressed MP3
MP3 to FLAC
Convert MP3 to FLAC container format
WAV to AAC
Compress WAV audio to efficient AAC format
M4A to MP3
Convert Apple M4A audio to MP3
Trim Audio
Cut audio files to a specific time range
Adjust Audio Volume
Increase or decrease audio volume
Change Audio Speed
Speed up or slow down audio playback
Audio Fade In/Out
Add smooth fade-in and fade-out effects
Remove Silence
Automatically remove silent sections from audio
Remove Audio Noise
Denoise audio and remove background hiss, hum, and static
Compress Audio
Reduce audio file size by lowering bitrate
Merge Audio Files
Combine multiple audio files into one
Extract Audio from Video
Pull the audio track from any video file
Audio Waveform Image
Generate a waveform visualization as an image
Batch Audio Conversion
Convert multiple audio files at once
About FileCraft Audio Tools
FileCraft's audio tools serve podcasters, musicians, voice-over artists, and content creators who need fast, private audio processing. Trim silence from recordings, convert between formats, compress large WAV masters to distributable MP3s, or extract audio from video files — all without installing software or trusting a cloud service with your unreleased material. The FileCraft Engine handles MP3, WAV, AAC, OGG, FLAC, and more.
Common Use Cases
- 1Trim the first and last few seconds from a podcast recording
- 2Convert WAV master recordings to MP3 for podcast distribution
- 3Compress audio files to reduce upload size for Spotify or SoundCloud
- 4Extract the audio track from a video interview for a podcast episode
- 5Merge separate interview tracks into a single stereo file
Technical Note
FFmpeg WASM powers all audio conversion — the industry-standard codec library running entirely in your browser
Frequently Asked Questions
What audio formats are supported?
MP3, WAV, AAC, OGG, FLAC, M4A, OPUS, and AIFF. Input and output format support varies by tool — check the specific tool page for details.
Will audio quality be lost when converting?
Converting between lossy formats (MP3 → OGG) causes a small quality reduction due to re-encoding. Converting from lossless to lossy (WAV → MP3) only loses quality if you choose a low bitrate.
How long does audio processing take?
Most operations complete in seconds for files under 100MB. The FileCraft Engine uses FFmpeg compiled to WebAssembly, delivering near-native conversion speeds in the browser.