Free Online Tools
Convert audio files with Web Audio API - Fast, Secure, Client-Side Processing
Support: MP3, WAV, OGG, M4A, AAC, FLAC (Max 100MB)
💡 100% Browser-Based: All conversion happens in your browser using Web Audio API. Your files never leave your device. WAV provides lossless quality, MP3 uses lamejs encoder for compression.
Audio Converter is a powerful web-based audio conversion tool that allows you to convert audio file formats completely free, directly in your browser. This tool uses cutting-edge Web Audio API technology to process audio files without uploading to servers, ensuring maximum privacy and security for your data.
Step 1 - Upload File: Click "Choose Audio File" button or simply drag and drop your audio file into the upload area. Supports all major audio formats including MP3, WAV, OGG, M4A, AAC, and FLAC with file sizes up to 100MB.
Step 2 - Preview Audio: Once uploaded, you can preview your audio file using the built-in player. File information including name, size, and format will be displayed clearly for verification.
Step 3 - Select Format: Choose your desired output format. WAV format provides uncompressed, lossless quality perfect for professional audio work. MP3 format offers compressed files with smaller sizes ideal for sharing and streaming.
Step 4 - Convert: Click "Convert Audio Now" to start the conversion process. A real-time progress bar shows conversion status with percentage completion and processing stage.
Step 5 - Download: After conversion completes, preview the converted audio, review file size comparison with the original, then download your file or start a new conversion.
Maximum Privacy Protection: All audio conversion processes occur entirely within your web browser. Your audio files are never uploaded to external servers or cloud storage, completely eliminating privacy risks and ensuring your data remains 100% secure on your device.
Lightning-Fast Processing: Since no server upload/download is required, conversion speed is limited only by your device's processing power. Modern computers and smartphones can convert audio files in seconds, far faster than traditional online converters.
Unlimited Usage: No file quantity limits, no daily quotas, no subscription fees. Use this tool as many times as you need, whenever you need, without any restrictions or hidden costs.
Universal Compatibility: Works seamlessly on all modern web browsers including Chrome, Firefox, Safari, Edge, and Opera. Compatible with desktop computers, laptops, tablets, and smartphones running Windows, macOS, Linux, iOS, or Android.
No Installation Required: Unlike traditional desktop software, our audio converter requires zero installation. Simply open your browser, visit this page, and start converting immediately. Perfect for quick conversions on any device without cluttering your system.
WAV Format Explained: WAV (Waveform Audio File Format) is an uncompressed, lossless audio format that preserves 100% of the original audio quality. A typical stereo WAV file at CD quality (44.1kHz, 16-bit) uses approximately 10MB per minute of audio. Best used for professional audio editing, archiving master recordings, and situations where absolute audio quality is paramount.
MP3 Format Explained: MP3 (MPEG Audio Layer 3) is a compressed, lossy audio format that significantly reduces file size while maintaining good perceived quality. At 128kbps bitrate, files are approximately 1MB per minute - a 90% size reduction compared to WAV. MP3 is universally supported across all devices and platforms, making it ideal for music libraries, podcast distribution, and online streaming.
Quality vs File Size: Consider a 3-minute song: WAV format creates a ~30MB file with perfect quality, while MP3 at 128kbps produces a ~3MB file with quality that most listeners find indistinguishable from the original. For general listening and sharing, MP3 offers the best balance of quality and convenience.
For Musicians & Producers: Convert final mixes to WAV for distribution to mastering engineers or MP3 for client previews and demo sharing.
For Podcasters: Convert recorded episodes to MP3 for easy distribution across podcast platforms and reduced hosting costs.
For Content Creators: Optimize audio files for video projects, ensuring compatibility with editing software while managing file sizes.
For Archivists: Convert old audio files to modern formats for preservation and compatibility with current playback systems.