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Frequently Asked Questions
Everything you need to know about our privacy architecture, calculation accuracy, and tools.
Explore Other 100% Free Tools
All tools run locally in your browser with zero server uploads and instant performance.
Video to MP3 Extractor
Extract audio track from MP4, WebM, and MKV videos into high-quality MP3/WAV with 100% browser privacy.
M4A to MP3 Converter
Convert Apple iPhone voice memos and M4A/AAC audio recordings into universal MP3 files instantly.
MP3 to WAV Converter
Decompress MP3 audio into uncompressed 16-bit 44.1kHz studio WAV format for audio editing.
WAV to MP3 Converter
Shrink huge WAV files into lightweight, high-fidelity MP3s up to 90% smaller.
Audio Joiner & Merger
Combine multiple MP3/WAV tracks into a single seamless continuous audio file with reordering.
Online Voice Recorder
Record high-quality microphone audio with real-time frequency spectrum visualizer and instant download.