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Audio Converter
Convert audio between MP3, WAV, OGG, FLAC, and M4A formats. Runs entirely in your browser -- free, private, no upload needed.
Upload Audio File
Drag & drop your file here, or browse
Supports MP3, WAV, FLAC, OGG, M4A, AAC, WEBM, WMA, AIFF. Max 50MB.file.mp3
0 MB
Converting audio in your browser... This may take a moment for larger files.
Converted File
output.mp3
0 MBCredit Cost
Free
Audio conversion runs entirely in your browser. No credits required, no account needed, no data uploaded to any server.
Format Guide
- MP3 -- Universal compatibility, good quality, small files
- WAV -- Lossless, uncompressed, best quality, large files
- OGG -- Open-source, good quality, smaller than MP3
- FLAC -- Lossless compression, half the size of WAV
- M4A -- Apple-friendly, efficient compression, good quality
Privacy
All processing happens locally in your browser using the Web Audio API. Your files never leave your device.
Best For
Format standardization, publishing pipelines, sharing across platforms, and archive migration.
Frequently Asked Questions
We support conversion between MP3, WAV, OGG, FLAC, M4A, AAC, WMA, AIFF, and WEBM. You can also adjust bitrate, sample rate, and channels during conversion.
The maximum upload file size is 50MB. There are no limits on output file size. This tool is completely free with no account required.
Converting from a lossless format (WAV, FLAC) to a lossy format (MP3, OGG) will reduce quality. Converting between lossless formats preserves quality. Converting from lossy to lossy at a lower bitrate will degrade quality. For best results, use the highest bitrate available.
Yes. Audio conversion is completely free with no account required, no usage limits, and zero credit cost. Convert as many files as you need without signing up or paying.
For general listening, 192kbps is a good balance of quality and file size. For high-quality audio, use 320kbps (the maximum for MP3). For voice recordings and podcasts, 128kbps is usually sufficient. Lower bitrates (64-96kbps) are suitable for spoken word where file size is critical.
Lossy formats (MP3, OGG, AAC) compress audio by discarding data the ear is less likely to notice, resulting in smaller files with some quality loss. Lossless formats (WAV, FLAC, AIFF) preserve all audio data with no quality loss but produce larger files. FLAC is compressed lossless — smaller than WAV but identical quality.
Yes. You can convert between common sample rates: 22.05kHz (low quality), 44.1kHz (CD quality), 48kHz (standard for video), and 96kHz (high-resolution audio). Upsampling does not improve quality but is sometimes needed for compatibility with specific playback systems.
Yes. Select the channel configuration during conversion. Converting stereo to mono mixes both channels into one, halving the file size. Converting mono to stereo duplicates the channel — it does not create a true stereo image from mono source material.
MP3 is the most universally compatible format for web playback, supported by all browsers and devices. OGG (Vorbis) offers better quality at the same bitrate but has limited Safari support. AAC (M4A) is excellent for Apple devices. For streaming applications, MP3 at 128-192kbps is the industry standard.
The web tool processes one file at a time. For batch conversion of multiple files, use our API to programmatically convert entire folders or libraries. The API accepts the same format and quality parameters as the web tool.
Most conversions complete in 2-10 seconds. Larger files or high sample rate conversions may take up to 30 seconds. The processing time depends on the input file size and the selected output format and quality settings.
Yes. Upload audio to our conversion API endpoint, specify the target format, bitrate, sample rate, and channels, and receive the converted file. The API is free for all users with zero credit cost, ideal for integrating format conversion into media processing pipelines.
Need a specific TTS workflow?
Compare providers, test voices, then run it through one brokered API.