Convert between 20+ audio formats with full control over bitrate, sample rate, and channels. Trim, normalize, and batch convert — all in your browser, 100% private.
✦ 20+ Formats✦ Batch Convert✦ Trim & Normalize✦ Instant Processing
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Drop your audio file here
or click to browse from your device
Supports MP3, WAV, OGG, FLAC, AAC, M4A, WMA, AIFF, WebM & more • Max 500MB
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🎵 File: —
📊 Format: —
📐 Size: —
⏱️ Duration: —
🎼 Sample Rate: —
📢 Channels: —
📤 Output Format
⚙️ Quality Settings
Bitrate192 kbps
Bit Depth
Quality6
Bitrate128 kbps
Sample Rate
Channels
🔊 Normalize Volume
✂️ Trim Audio
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Selected: 0:00
⏳ Converting...
Preparing...
✅ Conversion Complete
Output Format—
Original Size—
Output Size—
Size Change—
🔄 Convert
⚡ Features
Professional-Grade Audio Conversion
Advanced tools for precise audio format conversion, entirely in your browser.
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20+ Format Support
Convert between MP3, WAV, OGG, FLAC, AAC, M4A, WMA, AIFF, WebM and more. Decode virtually any browser-supported audio format.
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Lightning Fast
Powered by Web Audio API and optimized JavaScript encoders. MP3 & WAV convert instantly — no server round-trips, no waiting.
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Full Quality Control
Adjust bitrate (64–320 kbps), sample rate (8–96 kHz), channels (mono/stereo), and bit depth (16/24/32-bit). Quality presets included.
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Trim & Cut
Select exact start and end points on the interactive waveform. Only the selected portion is converted, saving time and space.
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Volume Normalization
One-click peak normalization to -1 dB. Ensures consistent volume levels across all your converted audio files.
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100% Private
All processing happens locally in your browser using Web Audio API. Your audio files are never uploaded to any server. Zero data leaves your device.
❓ FAQ
Frequently Asked Questions
Upload your audio file by dragging it into the upload zone or clicking "Choose File." Select your desired output format (MP3, WAV, OGG, WebM, AAC), adjust quality settings if needed, then click "Convert & Download." Your converted file will be ready instantly — no waiting for server processing.
Input formats (20+): MP3, WAV, OGG, FLAC, AAC, M4A, WMA, AIFF, WebM, Opus, AU, SND, and any browser-decodable audio format.
Yes, absolutely. All audio decoding, processing, and encoding happens entirely in your browser using the Web Audio API and JavaScript encoders (lamejs for MP3, custom PCM encoder for WAV). Your audio files are never uploaded to any server. Nothing leaves your device — this is the most private audio converter available.
WAV (PCM) is the best for uncompressed, lossless audio quality — perfect for editing and archiving. For lossy compression with excellent quality-to-size ratio, MP3 at 256–320 kbps is the universal standard. OGG/Opus offers better quality than MP3 at the same bitrate and is ideal for streaming. FLAC provides lossless compression (half the size of WAV with identical quality).
Yes! You can upload multiple audio files at once using the file picker or drag-and-drop. All files will be converted to the same output format with the same quality settings. Each file is processed independently and downloads separately.
Yes, click the "Trim" button in the toolbar to enable trim mode. Drag the purple handles on the waveform to select your desired start and end points, or type exact times in the sidebar. Only the selected portion will be converted and exported, saving you time and storage space.
Bitrate (kbps) determines audio compression quality — higher bitrate means better quality but larger file size. 128 kbps is acceptable for speech, 192–256 kbps for music, and 320 kbps for high-fidelity audio.
Sample rate (Hz) determines the range of frequencies captured. 44100 Hz (CD quality) covers the full range of human hearing. 48000 Hz is standard for video. Higher rates like 96000 Hz are used in professional recording.
File size changes depend on the format and quality settings. Converting to WAV (lossless) will increase file size. Converting to MP3, OGG, or WebM (lossy) will typically reduce file size — sometimes by 60–90% — depending on the bitrate selected. The conversion result panel shows the exact size comparison.