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.
UD5 Toolkit
Upload a PDF and quickly see which pages contain color and which are pure black & white. Helps optimize printing.
Analyze your audio file and see an approximate RMS/LUFS. Not a full normalizer, but an estimator.
Analyze letter/symbol frequency with an interactive bar chart and heatmap. Useful for breaking simple ciphers, linguistics, and SEO keyword analysis. Local processing.
Load an image to see separate red, green, blue histograms. Exposure and color balance tool.
If your device has a barometer, read the pressure and see trend analysis for short-term weather prediction. Fully local sensor access.
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.
Simulates 4d6 drop lowest many times and shows average stat array. Character creation helper.
Compare your worn sole pattern with reference images to determine pronation type and get shoe recommendations.
Real‑time frequency spectrum from your microphone. Visual bars or line. Check room resonance.
Paste a line of poem and see which syllable stresses create a particular meter. Educational tool.
Paste a Content‑Security‑Policy header and get a human‑readable breakdown. See potential risks and suggestions.