Elysia Tools: Tools, Visualizations, and Samples in One Place

Screen Reader Simulation Tester

Simulate the reading order and spoken semantics a screen reader may expose from a URL or raw HTML, then flag likely accessibility gaps

Security & Validation

API Contract Mutation Tester

Mutate OpenAPI request fields into semantically risky variants and optionally send them to a real backend to check defensive validation coverage

Developer & Web

CSV to Database Migration Planner

Infer a relational schema from CSV data and generate create-table plus ALTER migration plans for PostgreSQL, MySQL, SQLite, or SQL Server

Data & Tables

CSV/JSON Data Watermarker

Inject visible or signature-style watermark fields into CSV or JSON exports so shared datasets can be traced later

Security & Validation

Accessibility Heatmap Generator

Generate a contrast-focused accessibility heatmap from a UI screenshot or HTML input and suggest stronger patch colors

Design & Color

Fitness Workout PDF Generator

Generate a printable workout-plan PDF from JSON or CSV data with exercise tables, progress boxes, and optional QR video links

Documents & PDF

Terraform Plan Visualizer

Parse Terraform plan JSON or text output, classify resource changes, and surface a dependency-oriented summary before apply

Developer & Web

API Response Contract Validator

Validate a real API response JSON against the response schema declared in an OpenAPI 3.x specification

Developer & Web

Small-World Networks (Watts-Strogatz Model)

How a little randomness creates six degrees of separation

Percolation Phase Transition

Exploring the emergence of connected clusters at the critical threshold

Chromatography Principles

Interactive visualization of separation science and chromatographic analysis

Spectrophotometry

Interactive visualization of Beer-Lambert Law and absorption spectroscopy

Epidemic on Network (SIR Model)

Exploring how network topology shapes epidemic dynamics

Kuramoto Synchronization Model

Exploring phase transitions in coupled oscillator synchronization

Hodgkin-Huxley Neuron Model

Simulating action potential generation with ion channel gating dynamics

Turing Pattern - Reaction-Diffusion Simulation

Gray-Scott reaction-diffusion model with luminous blue-green pseudocolor waves

Terraform Plan JSON Samples

Sample Terraform plan JSON files exported from terraform show -json style payloads for dependency visualization and change review

3 samples

ICS Calendar Samples

Sample iCalendar (.ics) files for testing calendar import, event parsing, reminders, and recurring schedules

3 samples

PCAP Capture Samples

Downloadable PCAP capture files from simple to complex for protocol inspection, parser testing, and packet-analysis demos

3 samples

PCAPNG Capture Samples

Downloadable PCAPNG capture files from simple to complex for parser validation, format comparison, and network-analysis walkthroughs

3 samples

Length Distance Samples

Educational length and distance reference samples covering metric and imperial units, everyday comparisons, and conversion literacy

3 samples

VTT Subtitle Samples

Sample WebVTT subtitle files from simple to complex for subtitle previews, parser testing, conversion, and note handling

3 samples

ASS Subtitle Samples

Sample ASS subtitle files from simple to complex for style-aware subtitle parsing, translation, conversion, and localization QA

3 samples

SRT Subtitle Samples

Sample SRT subtitle files from simple to complex for testing import, translation, conversion, and timing-preservation workflows

3 samples