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Audio & Media Tools

30 tools

In-browser Web Audio API tools for sound generation, frequency analysis, audio editing, and metadata inspection.

All Audio & Media Tools Tone Generators & Sound Synthesis (8) Waveform Visualizers & Spectrograms (6) Audio Bitrate & Sample Rate (7) Metronome, Tuner & BPM Tap Counter (9)
Waveform Visualizers & Spectrograms Processed in your browser
Live Audio Peak dBFS & RMS Loudness Meter
Inspect live microphone or audio file peak dBFS, RMS loudness levels, and dynamic range headroom with clipping alerts.
Waveform Visualizers & Spectrograms Processed in your browser
Audio Frequency Spectrogram & Waterfall Visualizer
Visualize audio frequencies over time with a scrolling 2D color waterfall spectrogram and live microphone spectrum analyzer.
Audio Bitrate & Sample Rate Processed in your browser
Audio Bitrate & Lossless FLAC vs WAV Size Calculator
Calculate uncompressed PCM audio data rates, FLAC compression savings, and multi-track recording storage requirements.
Audio Bitrate & Sample Rate Processed in your browser
Audio Sample Rate Conversion Pitch & Drift Calculator
Calculate pitch transposition semitones, playback duration drift, and speed variation between 44.1kHz, 48kHz, 96kHz, and 192kHz sample rates.
Waveform Visualizers & Spectrograms Processed in your browser
Audio Waveform Visualizer & Player
Load local audio files (MP3, WAV, OGG) to render full waveform overviews and animated real-time playback bars.
Tone Generators & Sound Synthesis Processed in your browser
Binaural Beats & Brainwave Tone Generator
Generate pure binaural beats across Alpha, Beta, Theta, and Delta brainwave bands with carrier tone and pink noise blend.
Waveform Visualizers & Spectrograms Processed in your browser
Microphone Frequency Spectrum Monitor
Real-time microphone audio input visualizer. Displays live audio FFT frequency spectrum, dominant pitch note detection, and dB VU meter.
Tone Generators & Sound Synthesis Processed in your browser
DTMF Touch-Tone Keypad & Audio Dial Tone Simulator
Simulate telephone dual-tone multi-frequency (DTMF) keypad signals, IVR navigation tones, and redial sequences in-browser.
Audio Bitrate & Sample Rate Processed in your browser
Audio Bitrate & File Size Calculator
Calculate uncompressed PCM and compressed audio file sizes across sample rates, bit depths, channels, and bitrates.
Tone Generators & Sound Synthesis Processed in your browser
Morse Code Audio Tone Synthesizer & Beeper
Convert text into acoustic Morse code audio tones with adjustable Words Per Minute (WPM), pitch frequency, and Farnsworth timing.
Audio Bitrate & Sample Rate Processed in your browser
Decibel & Sound Pressure Level (SPL) Converter
Convert between sound pressure level (dB SPL), acoustic intensity (W/m²), sound pressure (Pascals), and voltage ratios (dBV, dBu, dBm).
Tone Generators & Sound Synthesis Processed in your browser
Convolver Audio Reverb & Room Acoustics Simulator
Simulate room acoustic reflections and spatial reverb (Small Studio, Concert Hall, Cathedral, Plate) using client-side Web Audio ConvolverNode.
Tone Generators & Sound Synthesis Processed in your browser
Audio Tone & Frequency Generator
Generate pure audio tones and test frequencies (20Hz to 20,000Hz) with sine, square, sawtooth, and triangle waveforms using the Web Audio API.
Metronome, Tuner & BPM Tap Counter Processed in your browser
10-Band Graphic Audio Equalizer & Sound Styler
Adjust audio frequency response using a 10-band Web Audio API graphic equalizer with bass boost, vocal enhance, and acoustic presets.
Tone Generators & Sound Synthesis Processed in your browser
Sound Frequency Sweep Generator (Chirp)
Generate logarithmic and linear audio frequency sweeps from 20Hz to 20,000Hz to test room resonance, subwoofer roll-off, and audio acoustics.
Metronome, Tuner & BPM Tap Counter Processed in your browser
Musical Chord Frequency & Progression Calculator
Calculate exact scientific pitch frequencies (Hz), musical note intervals, and MIDI numbers with interactive piano keyboard playback.
Tone Generators & Sound Synthesis Processed in your browser
White, Pink & Brown Noise Generator
Synthesize procedural acoustic white noise, pink noise (1/f), and brown noise (1/f²) in your browser for focus, sleep, tinnitus relief, and sound masking.
Metronome, Tuner & BPM Tap Counter Processed in your browser
Guitar Tuner & Pitch Pipe Reference
Acoustic pitch pipe and guitar string reference tones for Standard EADGBE, Drop D, DADGAD, and 4-string Bass tuning.
Metronome, Tuner & BPM Tap Counter Processed in your browser
Metronome & BPM Tap Tempo Tool
Precision audio metronome with Web Audio clicks, adjustable time signatures (2/4, 3/4, 4/4, 6/8), accented downbeats, and an interactive tap-tempo BPM detector.
Metronome, Tuner & BPM Tap Counter Processed in your browser
Stereo Panning & Channel Polarity Tester
Test left and right speaker channel separation, center phantom imaging, and phase polarity cancellation.
Waveform Visualizers & Spectrograms Processed in your browser
Audio Silence & Noise Threshold Detector
Scan audio files for quiet and silent intervals below dBFS thresholds with timestamped cues for speech and podcast editing.
Waveform Visualizers & Spectrograms Processed in your browser
Musical Note Pitch & Frequency Calculator
Calculate exact musical note frequencies (C0 to B8), MIDI note numbers, and cents deviation with interactive Web Audio sine wave preview.
Audio Bitrate & Sample Rate Processed in your browser
BPM Tempo to Delay & Reverb Time Calculator
Convert musical tempo (BPM) into exact millisecond delay times, dotted notes, triplets, and reverb pre-delay settings for music production.
Audio Bitrate & Sample Rate Processed in your browser
Podcast & Audio File Size Calculator
Estimate audio storage requirements and bandwidth usage for podcasts and voice tracks based on duration, bitrate, and format.
Audio Bitrate & Sample Rate Processed in your browser
Video Aspect Ratio & Letterbox Padding Calculator
Calculate video resolution dimensions (16:9, 9:16, 1:1, 4:3, 21:9) and compute exact letterbox or pillarbox padding for video editors.
Tone Generators & Sound Synthesis Processed in your browser
Audio Fade-In & Fade-Out Envelope Calculator
Calculate and visualize linear and exponential audio gain envelopes for smooth fade-ins and fade-outs to prevent speaker pop artifacts.
Metronome, Tuner & BPM Tap Counter Processed in your browser
Audio Stereo Channel Matrix & Panner
Simulate audio channel matrix routing: swap left and right channels, isolate mono channels, or test phase polarity cancellation.
Metronome, Tuner & BPM Tap Counter Processed in your browser
Audio Volume Gain Booster & Normalizer
Boost quiet audio files in-browser with Web Audio gain amplification, peak clipping indicators, and target dBFS normalization.
Metronome, Tuner & BPM Tap Counter Processed in your browser
Audio Playback Speed & Pitch Controller
Adjust audio playback speeds from 0.25x to 3.0x with optional pitch-preservation, loop sections, and real-time Web Audio API processing.
Metronome, Tuner & BPM Tap Counter Processed in your browser
Subtitle SRT Timestamp Shifter & Resync
Shift and resynchronize SubRip (.srt) subtitle timestamps forward or backward by custom milliseconds or seconds with 1-click export.

🛡️ Client-Side Execution & Privacy Architecture

Every tool executes under a strict Local-Only (P0) Privacy Architecture. Rather than transmitting your payloads, files, code, or sensitive data to remote cloud servers, all processing happens locally inside your web browser.

🔒 Zero Data Logging
No tracking or database recording of your inputs, keys, or source documents.
⚡ Instant In-Browser Processing
Zero network latency or server queue delays. Output is rendered instantaneously.
🌐 Offline Capable
Continue working even during intermittent internet or offline environments.

Frequently Asked Questions

Are all Audio & Media Tools tools free?

Yes, 100% free with unlimited daily usage. There are no paywalls, subscriptions, or login requirements.

Is my data uploaded or stored anywhere?

Never. All operations happen in-memory inside your browser session. Once you refresh or close your browser tab, memory is cleared immediately.

Can I use these utilities on mobile or tablet?

Yes, all utilities are fully responsive and optimized for touch devices and small viewports without loss of functionality.

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