Free audio tools
Measure it, keep the part you need, choose a format, or fix what sounds wrong. Processing runs on your device, with no account or audio upload.
Measure and prepare
Audio editor
Cut mistakes, move clips, repair a noisy section and mix up to four tracks on a waveform timeline. Everything runs on your device, then you download a WAV or MP3. Your original file stays unchanged.
Silence trimmer
Shorten the long gaps without rushing every breath. Choose what counts as quiet, preview the proposed cuts, and keep the pauses you need.
LUFS meter
Find out how loud your recording feels, and how close its peaks come to clipping. Choose a file to measure it here in your browser.
Audio trimmer
Keep the part you need. Set a start and end time, listen to that selection, then save a WAV or MP3. Your recording stays on your device.
Audio converter
Turn a browser-readable recording into WAV or MP3. Conversion changes the file format; it cannot restore detail that an earlier export removed.
Repair a recording
Choose the symptom, or let the audio repair tool check all eight.
A workflow to go with the tools
Prepare a podcast from recording to final export, or explore the audio articles. These tools have browser decoding limits. The audio editor adds a four-track timeline for cutting, moving and repairing selected parts of short recordings.
Test the setup before you record
Our sister site tonal.fm is the free general audio tool suite, including microphone, headphone and signal tests. Use those to check the setup; use fix.fm to work on a saved file.
For a saved mix with a custom loudness target, use tonal.fm's free volume normalizer. It applies gain within its peak ceiling and reports any shortfall.