Maztr's free online Audio File Editor allows you to record new audio tracks, modify existing tracks or convert files right in your browser without downloading any software. It's not designed to replace your DAW (Digital Audio Workstation - click here if you need a free DAW) but instead gives you quick access to a suite of audio editing tools you can use from any location to tweak your tracks and help get them ready for mastering.

There's a wide range of tools for trimming, cutting and pasting and you can apply lots of audio effects, from equalizers and compressors to reverb, delay and distortion fx. As well as using your mouse or touchscreen, there are more than 20 keyboard shortcuts to ensure the Editor is quick and easy to use.

You can also use our Audio File Editor to convert most file formats. Click the button below to get started with an Edit Project.

We have many more free tools for your audio files. Click here to check them out.

Detailed Editor Features

• No account or login is required to use the Editor.
• Record a new audio file, upload existing files from your local device or import a file from a Web URL.
• Edit and convert most audio file formats, ready for mastering. Supported formats for editing include mp3, wav, aac, aiff, ogg and flac.
• Load our Demo File by selecting "File=>Load Demo File" from the Top Menu.
• Visualize the waveform and frequency levels of your audio files.
• Navigate your audio files easily using zoom and pan.
• Cut/Paste/Trim multiple sections of your audio files.
• Choose from a suite of audio effects:
• Gain
• Fade In/Out
• Paragraphic Equalizer
• Compression
• Normalization
• Graphic Equalizers (10 & 20 Band)
• Limiter
• Delay
• Distortion
• Reverb
• Speed Control
• Silence Control
• Reverse & Invert
• Use Peak & distortion signaling.
• Frequency Analyzer.
• Spectrum Analyzer.
• Tempo & Rhythm Tools including Metronome.
• Audio Metatag Viewer. If you want to edit your tags, click here to use our free online Audio Tag Editor.
• Easily download your completed files in mp3 format. Maztr Pro users can also download files in wav format.

How do I convert files with the Audio File Editor?

1. Click here to start an Edit Project.
2. On the main Editor Screen, drop or click to upload your audio file. You can upload most types of files including mp3, wav, aac, aiff, ogg and flac files.
3. From the Top Menu, click "File=>Export/Download".
4. Enter a name for the file you want to download.
5. Select the format for your converted file - mp3 or wav (Maztr Pro users).
6. Choose the quality of your converted file - in kbps and mono/stereo.
7. You can also choose to download the whole file, or a selected section only.
8. Click the export button, wait for processing, then select your download location to complete the process.

How do I record a file with the Audio File Editor?

1. Click here to start an Edit Project.
2. Click the red button or press the [R] key.
3. Allow access to your device's microphone.
4. When you're ready, click the "Start Recording" button. You'll see the volume and waveform on screen while you're recording.
5. You can pause recording and resume at any time.
6. To stop recording, click the "Finish Recording" button.
7. Click the "Open Recording" button to access your recorded file.
8. You can edit the file or apply your chosen effects from the Top Menu.
9. You can save a temporary draft of your Recording by clicking "File=>Save Temp Draft" from the Top Menu. Using drafts, you can open multiple windows and merge files to create new files.
10. At any time, you can download a recorded or modified file by clicking "File=>Export/Download" from the Top Menu.