UD5 Toolkit
PDF Color vs Black & White Detector – Online Page Analysis
Upload a PDF and quickly see which pages contain color and which are pure black & white. Helps optimize printing.
Data & Text Analyzers
11+ toolsAudio Loudness Normalizer – Online LUFS Target Preview
Analyze your audio file and see an approximate RMS/LUFS. Not a full normalizer, but an estimator.
Character Frequency Analyzer - Online Visual Heatmap of Text
Analyze letter/symbol frequency with an interactive bar chart and heatmap. Useful for breaking simple ciphers, linguistics, and SEO keyword analysis. Local processing.
Image RGB Histogram – Online Per‑Channel Graph
Load an image to see separate red, green, blue histograms. Exposure and color balance tool.
Barometric Pressure Analyzer - Online Live Weather Prediction
If your device has a barometer, read the pressure and see trend analysis for short-term weather prediction. Fully local sensor access.
Text Readability Scorer - Online Flesch-Kincaid & ARI Calculator
Compute multiple readability scores (Flesch Reading Ease, Grade Level, ARI, SMOG). Paste any English text and see which grade level it's suitable for. Local.
RPG Dice Roll Analyzer – Online Probability of 4d6 Drop Lowest
Simulates 4d6 drop lowest many times and shows average stat array. Character creation helper.
Shoe Wear Pattern Diagnosis – Online Pronation & Gait Guide
Compare your worn sole pattern with reference images to determine pronation type and get shoe recommendations.
Live Audio Spectrum Analyzer – Online Microphone FFT
Real‑time frequency spectrum from your microphone. Visual bars or line. Check room resonance.
Poetry Meter Detector – Online Iambic, Trochaic, etc.
Paste a line of poem and see which syllable stresses create a particular meter. Educational tool.
CSP Analyzer - Online Test & Improve Policy
Paste a Content‑Security‑Policy header and get a human‑readable breakdown. See potential risks and suggestions.