NightSpark

Data & Analytics

AI tools for data analysis, visualization, and insights

15 tools available

A/B Test Planner

Plan statistically rigorous A/B tests. Get sample size calculations, test duration estimates, hypothesis framing, and analysis guidance.

Cron Expression Generator

Generate cron expressions from plain English scheduling descriptions. Supports standard cron, AWS CloudWatch, Kubernetes CronJob, and more.

Data Analysis Report Writer

Turn raw data findings into a polished analysis report with executive summary, key insights, visualizations recommendations, and actionable next steps.

Database Schema Designer

Design a normalized database schema from your requirements. Get CREATE TABLE statements, indexes, relationships, and best practices.

Data Dictionary Generator

Generate a professional data dictionary documenting your database tables, columns, data types, relationships, and business rules.

ETL Pipeline Planner

Design an ETL (Extract, Transform, Load) pipeline for your data. Get architecture recommendations, tool selection, transformation logic, and scheduling.

Excel Formula Generator

Generate Excel and Google Sheets formulas from plain English descriptions. Supports VLOOKUP, INDEX/MATCH, pivot formulas, array formulas, and more.

JSON Schema Generator

Generate JSON Schema definitions from sample data or descriptions. Validate API payloads, config files, and data structures.

KPI Dashboard Planner

Plan KPIs and design dashboard layouts for your business. Get metric definitions, calculation formulas, benchmarks, and visualization recommendations.

Python Pandas Code Generator

Generate Python pandas code for data manipulation, cleaning, analysis, and transformation. Describe what you need in plain English.

Regex Generator

Generate regular expressions from plain English descriptions. Supports JavaScript, Python, PHP, Java, and more. Includes test cases and explanations.

Sample Data Generator

Generate realistic sample data for testing, development, and demos. Supports CSV, JSON, SQL INSERT statements, and more.

SQL Query Generator

Generate SQL queries from plain English descriptions. Supports SELECT, INSERT, UPDATE, DELETE, JOINs, subqueries, CTEs, and more.

SQL Query Optimizer

Optimize slow SQL queries for better performance. Get index recommendations, query rewrites, and execution plan analysis.

Survey Question Generator

Generate professional survey questions for customer feedback, market research, employee engagement, or academic studies. Avoid bias and leading questions.