All-in-One Tools Collection
A broad collection of online tools for development, AI, design, and productivity tasks.
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NSFW Image Content Detector
AI-powered image content safety detector using NSFWJS to classify potentially inappropriate content with fallback analysis, supporting GIF/Animated WebP/APNG and JPEG/PNG/WEBP.
Sample Size Calculator
Estimate required sample size for proportions or means using confidence level, margin of error, and optional finite population correction
KG to LB
Convert kilograms to pounds with configurable decimal precision
Markdown Table Generator
Generate formatted Markdown tables from CSV, JSON, or array data with alignment, header styles, width control, and merge hints
LB to KG
Convert pounds to kilograms with configurable decimal precision
Normal Distribution Calculator
Calculate z-scores, cumulative probability, tail probability, and interval probability for a normal distribution
T-Test Calculator
Run one-sample or two-sample t-tests from raw data and inspect t statistics, degrees of freedom, and p-values
ANOVA Calculator
Run one-way ANOVA across multiple groups and inspect sums of squares, F statistic, and p-value
Correlation Calculator
Calculate Pearson correlation, covariance, and linear association strength from paired numeric data
Confidence Interval Calculator
Calculate confidence intervals for a sample mean or proportion using either raw data or summary statistics
Regression Calculator
Run simple linear regression on paired numeric data and inspect slope, intercept, correlation, and predictions
Variance Calculator
Calculate sample or population variance for a numeric dataset with intermediate statistics