Online Audio Tools & Studio
Convert, trim, compress, normalize, and master audio tracks directly in your browser. Powered by the Web Audio API with 100% private local processing.
Audio Format Converter
Convert between MP3, WAV, AAC, M4A, FLAC, and OGG audio formats online with pristine fidelity.
MP3 to WAV Converter
Convert compressed MP3 audio files to uncompressed 16-bit / 24-bit PCM WAV tracks.
WAV to MP3 Converter
Convert large uncompressed WAV files into compact, high-fidelity 320kbps MP3 audio.
M4A to MP3 Converter
Convert Apple M4A and AAC voice memos or music to universal MP3 format.
FLAC to MP3 Converter
Convert lossless FLAC audio files to compact 320kbps MP3 tracks.
OGG to MP3 Converter
Convert OGG Vorbis audio tracks into universal MP3 format.
MP3 to OGG Converter
Convert MP3 tracks into lightweight OGG Vorbis and Opus format for web and games.
Audio Compressor
Reduce MP3, WAV, and M4A audio file sizes with customizable bitrate presets and zero server uploads.
Audio Cutter
Cut out unwanted sections, coughs, and pauses from audio tracks with frame-accurate timeline precision.
Audio Trimmer
Trim start and end points of audio files to create custom ringtones, samples, and intro clips.
Audio Merger & Joiner
Combine multiple audio tracks and voice clips into a single continuous seamless audio file.
Audio Volume Booster
Boost quiet audio and podcast recordings up to 400% with built-in peak limiter distortion protection.
Audio Normalizer
Normalize audio volume to broadcast LUFS standards for consistent volume across all tracks.
Audio Speed Changer
Speed up or slow down audio tracks from 0.5x to 2.0x with pitch lock preservation.
Audio Pitch Shifter
Transpose musical keys and shift voice pitch higher or lower without changing tempo.
Reverse Audio
Play any audio file backwards to create reverse sound effects, swell transitions, and hidden messages.
Audio Silence Remover
Automatically detect and trim dead air and silent pauses from podcasts and voice recordings.
Audio Waveform Generator
Generate and export high-resolution visual waveform images from any audio or music file.
BPM Detector
Detect the exact Beats Per Minute (BPM) tempo of songs and DJ tracks with peak autocorrelation.
Audio Metadata Viewer
Inspect technical audio specifications including codec, sample rate, bit depth, channels, and tags.
Audio Duration Calculator
Calculate exact playtime, hours, minutes, seconds, and milliseconds of single or multiple audio tracks.
Online Voice & Audio Recorder
Record high-fidelity microphone audio with live waveform visualizer, pause/resume, and zero uploads.
Next-Generation In-Browser Audio Engineering
Dynamic Peak Normalization
Standard broadcast regulations require music and podcast audio to adhere to strict loudness standards. Our algorithm computes true-peak levels across all samples and adjusts gain automatically to preserve fidelity without distortion.
Accurate BPM Detection
By computing energy decay envelopes and sample autocorrelation over short analysis windows, our BPM detector identifies the dominant rhythmic tempo of tracks in seconds without cloud processing.
Zero-Latency Recording
Record voice memos, podcast interviews, and vocal takes directly via your microphone into 16-bit PCM WAV masters. No third-party accounts, watermarks, or tracking required.
Frequently Asked Questions
Are my audio tracks uploaded to an external server?
No! All audio decoding, conversion, trimming, volume normalization, and waveform generation runs 100% in your local browser using the Web Audio API and OfflineAudioContext. Your personal voice notes and music tracks never leave your computer or phone.
Which audio formats are supported for conversion?
Toolxilla supports MP3, WAV, AAC, M4A, FLAC, and OGG audio containers. You can convert between standard consumer formats and lossless studio masters seamlessly.
How does the volume booster work without digital distortion?
Our volume normalizer scans all audio channels for true peak levels and scales dynamic headroom transparently to -0.5 dBFS. If you manually boost gain up to 300%, a soft-limiting curve protects against digital harsh clipping.
Can I use the voice recorder on mobile devices?
Yes! The Audio Recorder utilizes standard browser MediaStream recording and works across modern iPhones (Safari), Android phones (Chrome), tablets, and desktop computers.