Audio Metadata EditorView and analyze audio file metadata including duration, format, and properties.
Audio Metadata Editor
View and analyze audio file metadata including duration, format, and properties.
Upload Audio
Drop your audio file or click to browse.
View Info
See detailed metadata including format, duration, sample rate, and channels.
Analyze
Review audio properties and technical details.
What Is Audio Metadata Editor?
The Audio Metadata Editor displays comprehensive technical information about audio files. Upload any audio file to instantly see its duration, sample rate, channel count, estimated bitrate, file size, and format details. The tool uses the Web Audio API to decode and analyze the audio, extracting properties from the AudioBuffer and file headers. Essential for audio engineers, producers, and content creators who need to verify audio specifications. All analysis happens locally in your browser.
Why Use Our Audio Metadata Editor?
- Instant display of all key audio properties
- Supports all browser-decodable audio formats
- Shows duration, sample rate, channels, bitrate, and file size
- Completely private — no uploads needed
Common Use Cases
Quality Check
Verify audio specs before publishing or distributing.
Format Verification
Confirm that audio files meet required specifications.
Troubleshooting
Diagnose audio issues by examining file properties.
Cataloging
Gather technical details for organizing and cataloging audio collections.
Technical Guide
The tool reads the audio file and extracts metadata from multiple sources. The File API provides: file name, size, MIME type, and last modified date. The Web Audio API's AudioContext.decodeAudioData() provides: sample rate, number of channels, duration, and sample count (length). The estimated bitrate is calculated as: fileSizeInBits / durationInSeconds. For WAV files, the RIFF header is parsed to extract the exact bit depth, compression type, and data chunk size. The tool also computes derived statistics like total samples, samples per channel, and audio data size vs. container overhead. Results are displayed in a formatted table. The waveform preview provides a visual representation of the audio content.
Tips & Best Practices
- 1Check sample rate and bit depth when troubleshooting playback issues
- 2Compare file size to expected size to detect potential encoding problems
- 3Mono files should have 1 channel, stereo should have 2
- 4Use this tool to verify specs before submitting audio to platforms with specific requirements
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Audio ToolsFrequently Asked Questions
QWhat metadata can I see?
QCan I edit ID3 tags?
QWhat formats are supported?
QHow is bitrate calculated?
QIs my file uploaded?
About Audio Metadata Editor
Audio Metadata Editor is a free online tool from FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration required. No ads. Just fast, reliable tools.