Json Generate Tools

Multi-level Pie Chart Generator

Create concentric multi-level pie charts with hierarchical relationships and interactive drill-down functionality

Pyramid Chart Generator

Generate pyramid charts for hierarchical structure visualization, perfect for organization charts, hierarchy levels, and proportional data

PDF Grade Report Card

Generate multi-page grade report cards with student info, scores, and comments

Stream Graph Generator

Generate beautiful stream graphs for time series data with smooth flowing animations and baseline variations

Step Chart Generator

Create step charts with staircase-style data visualization, perfect for showing discrete changes over time

Spider Chart Generator

Generate simplified spider (radar) charts for multi-dimensional data comparison and analysis

Comparison Bar Chart Generator

Generate back-to-back bar charts for positive and negative value comparison, perfect for contrasting data sets

XLSX Named Range Injector

Create or update workbook-level named ranges so formulas, validations, and reusable templates can reference stable Excel names

PDF QR Barcode Labels

Batch generate printable labels with QR code and barcode in a single PDF

Parallel Coordinates Chart Generator

Generate parallel coordinates charts for multidimensional data visualization with customizable normalization

XLSX Data Validation Dropdown

Batch-create dropdowns, dependent cascading dropdowns, and input prompts in Excel workbooks using data validation rules

Table Schema Generator

Generate SQL table schema definitions

Quadrant Chart Generator

Generate strategic quadrant charts for four-quadrant analysis, priority sorting, and strategic decision making

Icicle Chart Generator

Generate interactive icicle charts for hierarchical data visualization, perfect for displaying tree structures, file systems, and organizational hierarchies

Stacked Area Chart Generator

Generate stacked area charts showing cumulative trends of multiple data series, perfect for visualizing total trends and component contributions

Range Bar Chart Generator

Chart displaying min-max ranges and time intervals, simplified version of Gantt chart

Gantt Chart Generator

Create professional Gantt charts with task timelines, dependencies, progress tracking, and milestone markers

JWT Generator

Generate JWT tokens with custom claims and algorithms

Scatter Plot Generator

Generate customizable scatter plots with regression lines and multiple data series

XLSX Multi-Tab Report Pack

Generate one workbook containing multiple report tabs: overview, details, anomalies, and dictionary

PDF Receipt / Ticket Generator

Create a thermal-width receipt PDF with bold title and QR code

Thermometer Chart

Create vertical thermometer-style charts perfect for fundraising goals, project progress, and target achievement visualization

API Mock Server

Generate a runnable Redis-backed mock API server with 1-hour TTL, hot updates, and dynamic templated responses

Network Chart Generator

Interactive network relationship graph for visualizing social networks, topological structures, and node connections

Progress Ring Chart

Create beautiful circular progress indicators with animations, perfect for displaying percentages, completion rates, and progress metrics

Sunburst Chart Generator

Generate hierarchical sunburst charts with polar coordinates and radial layout

Milestone Chart Generator

Generate project milestone charts with timeline nodes and key achievement points

PDF Sales Dashboard

Create a visual sales dashboard PDF with charts, data tables, and conclusions

PDF Financial Report

Generate a financial report PDF with balance sheet, income statement, and merged table cells

PDF Payroll Slip Batch

Generate payroll slips in batch as merged PDF or ZIP of separate PDFs

Rating Star Chart

Create beautiful star rating visualizations for products, services, and user feedback analysis with interactive animations

Lottery Number Generator

Generate random lottery numbers for various countries and lottery types

Matrix Chart Generator

Generate correlation and comparison matrix charts with color intensity mapping and grid layout