All 80 TrueRes tools

Every listed tool processes selected media locally.

• Hi-Res Audio Verifier — Inspect source metadata and spectral evidence for possible upsampling or lossy ancestry. Results are heuristic, not proof of provenance.
• Spectrogram Viewer — Visualize the frequency content of your audio over time with an interactive spectrogram. Zoom, pan, and customize colors.
• LUFS Loudness Meter — Measure integrated, short-term, and momentary loudness using BS.1770-based weighting and gating, plus sample peak and loudness range.
• Dynamic Range Meter — Measure a block-based peak-to-RMS DR estimate, crest factor, and clipped-sample count.
• Mastering / Technical Audio Check — Check integrated loudness, loudness range, sample peak, clipped samples, DR estimate, crest factor, and RMS for one file in a single pass. Measurements only, no quality score.
• Waveform Viewer — View your audio waveform with multi-resolution zoom. See peaks, RMS levels, and navigate through your audio visually.
• Stereo Field Analyzer — Analyze stereo image with goniometer, correlation meter, and mid/side energy display. Check mono compatibility. Inspects a file’s recorded stereo content, not your output routing or perceived balance.
• Audio File Inspector — Deep-inspect any audio file. View format details, metadata, tags, cover art, and technical specifications: codec, bitrate, sample rate, and bit depth as reported by the file.
• Lossy Transcode Detector — Inspect spectral holes and cutoff patterns that may indicate prior lossy encoding. Results are heuristic, not proof of provenance.
• Spectrum Analyzer — View the average frequency spectrum of your audio with 1/3 octave bands and A/C/Z weighting options. Shows frequency distribution, not how it changes over time — use the Spectrogram Viewer for that.
• Audio Delta Lab — Align two audio files and measure where they differ. Detect timing, gain, polarity, channel mapping, drift, and residual level.
• Album & Batch Consistency Analyzer — Find technical mismatches and set-relative loudness, dynamic-range, and bandwidth outliers across an album or collection.
• Frequency Response Plotter — Plot the frequency response curve of an existing measurement file. For live microphone measurement, use the Room / Microphone Analyzer; for an impulse-response file, use the IR Viewer.
• Test Signal Measurement Lab — Analyze recordings of known fixed tones for frequency stability, stereo balance, and relative channel leakage.
• Audio Format Converter — Convert audio files between formats. FLAC to MP3, WAV to AAC, and more. All processing in your browser.
• Audio Trimmer — Trim audio files with a visual waveform editor. Set start and end points precisely with draggable handles.
• Audio Normalizer — Normalize audio loudness to a target LUFS level. Perfect for podcast and music mastering preparation.
• Voice-Aware Silence Cutter — Find likely speech locally, then export a copy with pauses removed. Optional on-device voice detection download.
• Voice Noise Reducer — Reduce steady background noise behind spoken audio with an optional compact on-device model.
• Waveform Image Generator — Generate beautiful waveform images from your audio files. Customize colors, size, and style. Download as PNG.
• Audio Tag Editor — View audio metadata and create a safely rewritten copy with updated standard tags. Originals are never overwritten.
• Metadata Stripper — Remove all metadata and tags from audio files for privacy. Download a clean file with no personal information.
• Sample Rate Converter — Resample audio to a different sample rate. Convert between 44.1kHz, 48kHz, 96kHz, 192kHz, and more.
• Channel Operations — Extract left or right channel, convert stereo to mono, or combine mono files to stereo.
• Audio Merger — Concatenate two or more audio files into a single file. Reorder tracks, choose output format, and download the merged result.
• Audio Splitter — Split an audio file into multiple segments at custom time points. Download individual segments or all at once.
• Video to MP3 Extractor — Extract the audio track from any video file and save it as MP3. Choose your quality settings.
• Video Trimmer — Trim video files by setting start and end times. Fast copy-codec trimming with no re-encoding.
• Video Compressor — Compress video files to reduce size. Control quality with CRF slider and see estimated file size.
• Video to GIF Converter — Convert video clips to animated GIFs. Control FPS and width, preview single results, or process files and folders in a batch.
• Video Format Converter — Convert videos between formats: MP4, WebM, AVI. Choose codec and quality settings.
• Video Muter / Audio Replace — Remove the audio track from a video file. Download a silent video or replace with new audio.
• Video to Audio Extractor — Extract the audio track from video in its original codec. No re-encoding for lossless extraction.
• Video Merger — Concatenate two or more video files into a single video. Reorder clips, choose output format, and download the merged result.
• Video Splitter — Split a video file into multiple segments at custom time points. Fast codec-copy mode with no re-encoding.
• Video Rotate & Flip — Rotate or flip videos with one shared setting. Preview one file or process files and folders sequentially in a batch.
• Video Resize / Downscale — Resize or downscale videos to common or custom dimensions. Preview one file or process files and folders sequentially in a batch.
• Video Speed Changer — Speed up or slow down videos by 0.25×–4× while preserving audio pitch. Files and folders can be processed sequentially.
• GIF to Video Converter — Convert animated GIF files to MP4 for smaller files and broader compatibility. Supports single previews plus file and folder batches.
• GIF Maker from Images — Create an animated GIF from a sequence of PNG/JPG images. Control FPS, size, and loop. Browser-based FFmpeg.
• Audio to Video Converter — Convert an audio file into a YouTube-ready MP4 video with a static background image. Choose resolution and aspect ratio. A simple conversion, not an animated visualizer or waveform video.
• Vocal Remover (Karaoke) — Remove center-panned vocals from stereo tracks using center-channel cancellation (not AI stem splitting). Supports files and folders.
• Audio Pitch & Speed Changer — Change pitch and tempo independently for one track or apply the same settings sequentially to files and folders.
• Audio Reverser — Reverse audio for sound design and creative production. Preview one track or process files and folders sequentially.
• Audio Fade In / Fade Out — Add independent fade-in and fade-out effects to one track or apply the same durations sequentially to files and folders.
• Video Reverser — Play videos backwards with optional reversed audio. Preview one file or process files and folders sequentially.
• Tone Generator — Generate precise audio tones. Choose frequency, waveform shape, and level. Play in real-time or download as WAV.
• Frequency Sweep Generator — Generate logarithmic or linear frequency sweeps. Test your speakers, headphones, and hearing range.
• Noise Generator — Generate white, pink, brown, blue, violet, and grey noise. Use for testing, relaxation, or sound masking.
• Informal Hearing Screening — Educational frequency-awareness screening using relative, uncalibrated device volume. It cannot diagnose hearing loss.
• DAC & Headphone Test Suite — Check your DAC and headphone playback chain with left/right, in-phase polarity, low-level, and rising-level test tones.
• Audio Bitrate & File Size Calculator — Solve for file size, required bitrate, or recording time from format, bitrate, sample rate, bit depth, channels, and duration.
• BPM / Delay Time Calculator — Convert tempo to delay and note times in milliseconds, or convert a delay time back to BPM. Covers normal, dotted, and triplet note values.
• Audio Buffer Latency Calculator — Calculate one-way buffer latency from sample rate and buffer size, and convert between samples and milliseconds.
• Audio Format Reference Guide — Compare audio formats side-by-side. FLAC vs WAV vs MP3 vs AAC vs OGG. Learn about codecs, quality, and use cases.
• Bluetooth Audio Codec Comparison — Compare Bluetooth audio codecs: LDAC, aptX HD, aptX, AAC, SBC. Understand quality, latency, and compatibility.
• Media Player — Play any audio or video file instantly in your browser. Drag, drop, and listen or watch — no processing needed.
• Speaker Channel Test — Identify and test individual speaker channels in stereo, 5.1, or 7.1 surround. Includes polarity/phase check. Checks output channel routing, not perceived L/R balance.
• Subwoofer & Bass Test — Test your subwoofer with frequency steps, bass sweeps, and a crossover finder. Find room resonances and rolloff.
• Headphone Burn-In Generator — Run a timed headphone burn-in sequence with pink noise, sweeps, and dynamic content. Timer from 30 min to 24 hours.
• Turntable / Vinyl Test Tones — Generate reference tones for turntable speed checks, anti-skating, and channel balance, then analyze a recording in Measurement Lab.
• Surround Sound Reference Guide — Channel layouts for 2.0 to 7.1.4, speaker placement guidelines, crossover recommendations, and format comparisons.
• dB Unit Converter — Convert between dBFS, dBu, dBV, dBSPL, watts, and volts, or compute an amplitude-ratio or power-ratio dB value directly from two values.
• Listening Fatigue Monitor — Estimate safe listening time based on volume level. WHO/NIOSH guidelines with break reminders.
• ABX Blind Test — Double-blind ABX audio comparison. Load two files, guess which is X, and get statistical significance results.
• Clipping & Inter-sample Peak Estimator — Scan for estimated inter-sample peaks, hard clipping, and consecutive clipped samples with a visual waveform timeline.
• Room / Microphone Analyzer — Explore live microphone spectrum and an estimated noise floor, with explicit microphone and browser-processing limitations. For an existing measurement file, use the Frequency Response Plotter instead.
• Impulse Response Viewer — Visualize waveform, a derived frequency-response view, and a simplified decay-time estimate for an existing impulse-response file.
• Instrument Tuner — Tune guitar, bass, ukulele, violin, voice or any instrument in real time with a chromatic note readout and cents meter.
• Sound Level Meter (dBA / dBC) — Measure live sound level with A, C or Z weighting, Fast/Slow time weighting, Leq and max hold, with an optional calibration offset.
• Real-Time Analyzer (RTA) — Live 1/1, 1/3 or 1/6-octave real-time analyzer with peak hold, decay control and target curve overlay for speaker and room tuning.
• Microphone & Interface Diagnostics — Check your microphone and audio interface live: sample rate, channels, peak headroom, clipping, noise floor, signal-to-noise, DC offset and dropouts.
• Feedback & Ringing Detector — Find acoustic feedback and ringing frequencies live so you can notch them with EQ — for PA, stage monitors, podcasts and streaming.
• Bit-Perfect Playback Test — Generate a known PCM test signal to verify your playback chain applies no processing, SRC, or volume changes.
• Crossfeed Simulator — Simulate speaker-like listening on headphones by blending a filtered, delayed signal between channels.
• Binaural Beat Generator — Generate binaural beats for focus, relaxation, or meditation. Adjustable base and beat frequency with session timer.
• Soundstage & Imaging Test — Test headphone soundstage with panning sweeps, center image, width tests, and HRTF 3D positioning.
• Channel Balance Test — Check headphone driver matching with alternating L/R tones at multiple frequencies. Detect imbalance in dB. Checks perceived L/R loudness balance, not output channel routing.
• EQ Ear Training — Train your ears to identify EQ frequency bands. Gamified quiz with difficulty levels and score tracking.
• Headphone Comparison Guide — Reference guide for headphone types, impedance, amplification, target curves, and EQ tips.