Free online tools powered by AI — analyze data, solve math, generate charts and more
Create charts online from Excel and CSV data with AI. Build bar, line, scatter, pie, and custom charts in seconds.
Create bar charts online from Excel and CSV data. Compare categories, rank values, and export clean charts with AI.
Create histograms online from Excel and CSV data. Visualize distributions, choose bins, and explore spread and skew with AI.
Create scatter plots online from Excel and CSV data. Compare two variables, add trendlines, and color groups with AI.
Create line charts online from Excel and CSV data. Plot time series, compare trends, and annotate changes with AI.
Create pie charts online from Excel and CSV data. Show composition, category shares, and simple part-to-whole comparisons with AI.
Create Sankey diagrams online from Excel and CSV data. Visualize flows between stages, sources, and destinations with AI.
Run linear regression online from Excel or CSV data. Estimate slopes, confidence intervals, R-squared, and fitted trendlines with AI.
Create network graphs online from Excel and CSV data. Map relationships, influence, and connection strength with AI.
Run multiple regression online from Excel or CSV data. Model one outcome with multiple predictors, interpret coefficients, and compare fit with AI.
Create violin plots online from Excel and CSV data. Compare distributions, density, and group differences with AI.
Run logistic regression online from Excel or CSV data. Estimate odds ratios, predicted probabilities, ROC curves, and classification metrics with AI.
Create box plots online from Excel and CSV data. Compare medians, quartiles, spread, and outliers with AI.
Create pivot tables online from Excel and CSV data. Group, summarize, count, and aggregate rows with AI-generated analysis.
Create heatmaps online from Excel and CSV data. Visualize matrices, patterns, intensity, and grouped comparisons with AI.
Create volcano plots online from differential expression or screening results. Highlight fold change, significance, and top hits with AI.
Create clustergrams online from Excel and CSV matrices. Combine heatmaps with hierarchical clustering to reveal structure with AI.
Create tornado plots online from Excel and CSV data. Rank inputs by impact and visualize one-way sensitivity analysis with AI.
Create ternary plots online from Excel and CSV data. Visualize three-part compositions such as mixes, proportions, and shares with AI.
Create ridgeline plots online from Excel and CSV data. Compare many distributions across groups or time periods with AI.
Create alluvial diagrams online from Excel and CSV data. Show how groups, categories, or outcomes flow across stages with AI.
Create boxen plots online from Excel and CSV data. Reveal tail behavior and compare large distributions with more detail than box plots.
Create pair plots online from Excel and CSV data. Explore pairwise relationships, distributions, and grouped patterns with AI.
Solve algebra, arithmetic, and applied math problems online with AI. Get worked steps, equations, and explanations fast.
Calculate descriptive statistics, probabilities, and common tests online from typed values or files with AI.
Run exploratory data analysis online from Excel and CSV files. Profile columns, missing values, outliers, distributions, and correlations with AI.
Run one-sample, independent, and paired t-tests online from Excel or CSV data. Get p-values, confidence intervals, and effect sizes with AI.
Run one-way ANOVA online from Excel or CSV data. Compare group means, inspect post-hoc tests, and interpret effect sizes with AI.
Run two-way ANOVA online from Excel or CSV data. Test main effects, interactions, and group comparisons with AI.
Create density plots online from Excel and CSV data. Compare smooth distributions, overlap, and shape across groups with AI.
Create residual plots online from Excel and CSV data. Check regression assumptions, nonlinearity, and heteroscedasticity with AI.
Create flow diagrams online from Excel and CSV data. Map processes, pathways, and step-by-step structures with AI.
Create Q-Q plots online from Excel and CSV data. Compare sample distributions to theoretical distributions and check normality with AI.
Run chi-square tests of independence and goodness-of-fit online from Excel or CSV data. Build contingency tables, p-values, and effect sizes with AI.
Calculate z-scores online from Excel, CSV, or manual values. Standardize observations, flag outliers, and compare to percentiles with AI.
Run principal component analysis online from Excel or CSV data. Reduce dimensions, visualize clusters, and inspect loadings with AI.
Create correlation matrices online from Excel and CSV data. Measure pairwise relationships and generate correlation heatmaps with AI.
Create empirical CDF plots online from Excel and CSV data. Compare percentiles, thresholds, and full distributions with AI.
Calculate partial correlations online from Excel or CSV data. Control for confounders and isolate the relationship between variables with AI.
Create Kaplan-Meier survival curves online from Excel or CSV data. Analyze time-to-event outcomes, censoring, and log-rank tests with AI.
Fit Hill equations online from Excel or CSV data. Estimate EC50, slope, cooperativity, and sigmoidal response curves with AI.
Fit Michaelis-Menten curves online from Excel or CSV data. Estimate Vmax, Km, and enzyme saturation behavior with AI.
Create Lineweaver-Burk plots online from Excel or CSV data. Visualize enzyme kinetics and compare inhibition patterns with AI.
Analyze enzyme kinetics online from Excel or CSV data. Fit Michaelis-Menten models, compare inhibition, and inspect residuals with AI.
Fit dose-response curves online from Excel or CSV data. Estimate IC50, EC50, Hill slope, and 4PL model parameters with AI.
Solve word problems online with AI. Convert text into equations, compute answers, and explain the reasoning step by step.
Solve linear and quadratic inequalities online with AI. Get interval notation, number line logic, and worked steps.
Solve derivatives, integrals, limits, and calculus problems online with AI. Get worked steps and symbolic results.
Fit Gaussian peaks online from Excel or CSV data. Estimate peak center, width, area, and fit quality with AI.
Fit Lorentzian peaks online from Excel or CSV data. Estimate center, width, amplitude, and residual diagnostics with AI.
Run polynomial regression online from Excel or CSV data. Fit curved relationships, compare degrees, and inspect model fit with AI.
Fit logistic curves online from Excel or CSV data. Model S-shaped growth, saturation, and cumulative adoption patterns with AI.
Decompose time series online from Excel or CSV data. Separate trend, seasonality, and residual structure with AI.
Add and compare trendlines online from Excel and CSV data. Fit linear, polynomial, exponential, and other trends with AI.
Solve physics problems online with AI. Work through formulas, units, kinematics, energy, and mechanics step by step.
Create ACF and PACF plots online from Excel or CSV time-series data. Diagnose lag structure and model order with AI.
Create lag plots online from Excel or CSV time-series data. Visualize dependence, seasonality, and nonlinear lag structure with AI.
Analyze seasonality online from Excel or CSV time-series data. Detect recurring cycles, seasonal strength, and timing with AI.
Apply moving median filters online to Excel or CSV data. Smooth noise, reduce spikes, and preserve robust trends with AI.
Detect structural breaks online from Excel or CSV time-series data. Find regime shifts, level changes, and trend changes with AI.
Calculate moving averages online from Excel or CSV data. Smooth noisy series and compare short-term versus long-term trends with AI.
Apply Savitzky-Golay smoothing online to Excel or CSV data. Preserve peaks, estimate derivatives, and denoise signals with AI.
Forecast time series online from Excel or CSV data with exponential smoothing. Model trend, seasonality, and prediction intervals with AI.
Find peaks online from Excel or CSV data. Detect maxima, rank prominence, and measure spacing and widths with AI.
Analyze qPCR standard curves online from Excel or CSV data. Calculate PCR efficiency, slope, R-squared, and unknown sample quantities with AI.
Analyze qPCR melt curves online from Excel or CSV data. Detect Tm, identify nonspecific products, and compare peak profiles with AI.
Fit Cox proportional hazards models online from Excel or CSV survival data. Estimate hazard ratios, test assumptions, and compare risk with AI.
Run fixed-effect and random-effects meta-analysis online from Excel or CSV study data. Pool effect sizes, compute I-squared, and generate forest plots with AI.
Calculate sample size, effect size, and statistical power online for common study designs with AI.
Plot ROC curves and calculate AUC online from Excel or CSV data. Compare classifiers, optimize thresholds, and inspect sensitivity and specificity with AI.
Run Fisher's exact test online from cell counts or a 2x2 table. Calculate exact p-values, odds ratios, and confidence intervals with AI.
Calculate Delta Delta Ct and fold change online from qPCR Ct values. Normalize to reference genes and compare conditions with AI.
Fit ELISA standard curves online from Excel or CSV data. Back-calculate concentrations, estimate LOD and LOQ, and assess precision with AI.
Create Bland-Altman plots online from Excel or CSV data. Compare measurement methods, estimate bias, and inspect limits of agreement with AI.
Create confusion matrices online from Excel, CSV, or cell counts. Calculate sensitivity, specificity, PPV, NPV, F1, MCC, and kappa with AI.
Calculate age-standardized rates online from Excel or CSV data. Apply standard populations and compare crude versus adjusted rates with AI.
Calculate Cronbach's alpha online from Excel or CSV survey data. Measure internal consistency, item-total correlations, and alpha-if-deleted with AI.
Run exploratory factor analysis online from Excel or CSV survey data. Extract latent factors, rotate loadings, and inspect scree plots with AI.
Run repeated measures ANOVA online from Excel or CSV data. Test within-subject effects, sphericity, and post-hoc differences with AI.
Fit linear mixed effects models online from Excel or CSV data. Model clustered or longitudinal outcomes with fixed and random effects using AI.
Run mediation analysis online from Excel or CSV data. Estimate direct and indirect effects with bootstrap confidence intervals using AI.
Run moderation analysis online from Excel or CSV data. Test interaction effects, simple slopes, and Johnson-Neyman regions with AI.
Calculate ICC online from Excel or CSV data. Assess inter-rater, intra-rater, and test-retest reliability with AI.
Calculate Cohen's kappa online from Excel or CSV ratings. Measure inter-rater agreement for categorical labels with AI.
Analyze exam and survey items online from Excel or CSV data. Calculate difficulty, discrimination, and weak-item flags with AI.
Score surveys online from Excel or CSV data. Reverse-code items, compute subscales, handle missing values, and compare groups with AI.
Analyze A/B tests online from Excel or CSV data. Calculate conversion rates, lift, p-values, confidence intervals, and sample size checks with AI.
Analyze conversion funnels online from Excel or CSV data. Measure drop-off, stage conversion, and bottlenecks with AI.
Analyze cohort retention online from Excel or CSV data. Build retention heatmaps, benchmark churn, and compare cohorts with AI.
Build lead scoring models online from Excel or CSV CRM data. Rank prospects, score conversion probability, and evaluate model quality with AI.
Forecast sales online from Excel or CSV data. Fit ETS and trend models, decompose seasonality, and generate prediction intervals with AI.
Analyze pipeline conversion online from Excel or CSV CRM data. Measure stage-to-stage rates, win rates, and pipeline velocity with AI.
Segment customers online from Excel or CSV data. Run RFM analysis, clustering, and profile high-value or at-risk groups with AI.
Create lift and cumulative gains charts online from Excel or CSV model outputs. Evaluate targeting and campaign efficiency with AI.
Calculate CAC, LTV, payback period, and LTV to CAC ratios online from Excel or CSV data with AI.
Compare first-touch, last-touch, linear, and time-decay attribution models online from Excel or CSV journey data with AI.