기본 기능

• JPG, PNG, WebP, GIF, BMP 이미지 파일 지원
• 드래그&드롭 또는 클릭으로 파일 선택, 여러 장 동시 처리
• 품질 슬라이더(10~100%)로 압축 강도 조절
• 출력 포맷 변환 — 원본 유지 / JPG / PNG / WebP / GIF / BMP 선택 가능

압축 처리

• 파일별 진행 바로 압축 상태 실시간 확인
• 압축 후 용량이 원본보다 크면 자동으로 원본 파일 사용
• 압축 전/후 용량 및 절감률(%) 표시

다운로드

• 파일별 개별 저장
• 전체 파일 순차 다운로드

보안

• 모든 처리가 브라우저 내에서만 이루어지며 서버로 전송되지 않음
• 로그인·회원가입 불필요

Vehicle Exhaust Visualizer

An interactive educational simulator that visualizes how vehicle exhaust changes under different driving conditions.

Explore Idle, Cold Start, Cruise, Acceleration, Hill Climb, and DPF Regeneration, and compare Gasoline, Diesel, and Hybrid vehicles.

Adjust engine load, RPM, exhaust temperature, aftertreatment efficiency, and wind strength to observe changes in exhaust flow and dispersion. The simulator also explains key emissions such as CO₂, NOₓ, CO, HC, and particulate matter (PM), along with modern exhaust aftertreatment systems.

Overview

A six-tab interactive visualization of automotive exhaust emissions, covering gas composition, catalytic converter chemistry, particulate matter physics, engine operating conditions, urban air quality accumulation, and a direct comparison between internal combustion and battery electric vehicles. Each tab runs a live particle simulation alongside a detailed component explanation panel.

Content

Gas Composition — A bar chart and donut chart break down the typical exhaust mix from a gasoline engine: nitrogen (~71%), CO₂ (~14%), water vapor (~13%), and the small but harmful fractions of carbon monoxide, nitrogen oxides, hydrocarbons, and particulate matter. Toxic and greenhouse gas badges highlight which components are regulated. Colored particles stream from a tailpipe in real time.

Catalytic Converter — Shows raw exhaust entering a honeycomb substrate coated with platinum, palladium, and rhodium. Three simultaneous chemical reactions are displayed: CO oxidation to CO₂, hydrocarbon oxidation to CO₂ and water, and NOₓ reduction to harmless nitrogen. A conversion efficiency bar shows how close to 100% the catalyst is operating. Clean green particles exit the right side of the converter.

Particulate Matter — A size scale compares PM10, PM2.5, PM1, and ultrafine particles against a visual reference. Three vehicle types — car, bus, and truck — emit particles that drift and disperse according to a wind indicator. A lung diagram marks the health impact zone where fine particles reach the alveoli directly.

Engine Conditions — Three sliders control RPM, engine load percentage, and coolant temperature. Four emission bars (CO, NOₓ, HC, PM) update in real time as conditions change, with Euro 6 limit markers showing whether the engine is within regulatory bounds. A particle stream changes color and density with the emission profile.

Urban Accumulation — A city scene with moving vehicles gradually fills the air with exhaust particles. The sky color shifts from dark blue to orange-brown as the Air Quality Index rises through Good, Moderate, Unhealthy, and Hazardous levels. The AQI badge in the top bar updates live.

EV vs ICE — A split screen places a gasoline engine on the left (emitting colored exhaust particles) against a battery electric vehicle on the right (emitting nothing from the drivetrain). A six-row comparison table covers direct CO₂, NOₓ, fine particles, well-to-wheel emissions, energy efficiency, and noise — with the cleaner result highlighted in green for each category.

Overview

A six-tab interactive visualization of railway switch (points) mechanisms, from basic turnout geometry through to high-speed railway engineering. Each tab animates the switch in real time and includes a component breakdown panel on the right. The Throw Switch button operates every simulation.

Content

Basic Turnout — The fundamental railway switch. Animated switch blades move between the straight (through) route and the diverging route. Shows the stock rails, movable blades, stretcher bar connecting them, frog crossing point, and approach signal. The signal only shows clear when the blades are fully locked in position.

Electric Point Motor — A motorised switch actuator with animated gear reduction, actuating rod, detection contacts, and position indicator bar. Shows how the motor drives the blades, how detection contacts confirm full blade travel, and how an obstruction prevents detection — automatically holding the signal at danger.

Double Crossover (Scissors) — Four independent switches and a central diamond crossing that connect two parallel tracks. Cycles through four route modes: straight on both tracks, Track A crossing to B, Track B crossing to A, and both crossing simultaneously. Two trains run concurrently to illustrate route separation.

Three-Way Switch — A single compact mechanism that routes an incoming train to one of three destinations. A three-position drive motor steps through left, centre, and right. The train animates onto whichever branch is selected, showing how the dual-blade assembly works as a unit.

Signal Interlocking — The logic layer that makes conflicting routes physically impossible to set. A route table shows which signal and switch combinations are valid. Cycling through routes demonstrates that only safe signal-and-switch combinations can be activated together — approach locking prevents switch movement once a train has passed a clear signal.

High-Speed Railway Switch — Compares a standard 1:9 turnout angle against a high-speed 1:42 ratio switch. Annotates the blade length (60–80m versus ~6m on a standard switch), the swing-nose frog that eliminates the flangeway gap, and the resulting increase in permitted diverging speed to 170+ km/h. A fast-moving train illustrates smooth high-speed diverging.

Everyday electrical and electronics knowledge for non-specialists — interactive visualizations covering home electrical safety, series and parallel circuits, fuses and circuit breakers, grounding, battery capacity, LED vs incandescent power comparison, outlet overloading, and the difference between AC and DC.

3D Invisibility Cloak Visualizer

An interactive 3D educational simulator that explains the basic concept behind an invisibility cloak.

Instead of making an object simply transparent, the simulator shows how light waves can be redirected around a hidden region and guided back toward their original paths.

Explore Cloaking Shell, Light Rays, Index Field, and Cross Section views while adjusting Cloaking Strength, Shell Thickness, Ray Density, and Wavelength.

The simulator also introduces transformation optics, metamaterials, wave bending, and the real-world limitations of invisibility technology through interactive 3D visualizations.

PID Tuning Simulator

An interactive control systems simulator designed to help users understand and experiment with PID control.

Adjust Kp, Ki, and Kd in real time and observe how they affect rise time, overshoot, settling time, steady-state error, and system stability.

Test different controller presets, change the setpoint, add disturbances and sensor noise, and monitor the Process Value, Control Output, Error, and individual P/I/D contributions.

The simulator also explains the roles of Proportional, Integral, and Derivative control through interactive visualizations and concept diagrams.

Overview

A real-time, browser-based visualization of the four-stroke internal combustion engine cycle. The cylinder cross-section animates using actual slider-crank kinematics, with a physically modeled pressure and temperature cycle for each stroke. RPM and crank angle are fully adjustable.

Content

Engine Cross-Section — Animated cutaway showing the piston, connecting rod, crankshaft with counterweight, intake and exhaust valves, and spark plug. Gas color changes with each stroke: blue air-fuel mix on intake, white-blue on compression, orange-yellow flash on ignition, and grey on exhaust. The spark plug fires with a visible spark at the start of the power stroke.

Four Strokes — Click any stroke tab to jump directly to that phase.

• Intake — Piston descends, intake valve opens, air-fuel mixture drawn in
• Compression — Both valves closed, piston rises, mixture compressed polytropically
• Power — Spark ignites mixture near TDC, pressure peaks and drives piston down
• Exhaust — Exhaust valve opens, piston rises and expels burnt gases

P–V Diagram — Pressure-volume diagram showing the full thermodynamic cycle as a continuous curve, with a live dot tracking the current operating point.

Four Live Charts — Scrolling history of cylinder pressure, temperature, valve lift, and torque output across the cycle.

Controls

• RPM slider (30 – 600 RPM, default 100)
• Crank angle slider for manual step-through (0° – 720°)
• Pause / Play / Reset
• Stroke tabs for direct phase navigation

Right Panel — Live readings for pressure (bar), temperature (°C), cylinder volume (%), and crank angle, plus a per-stroke explanation of valve states, pressure range, and the governing thermodynamic equation.

Overview

A real-time, browser-based visualization of tower crane operation, showing how load capacity changes with trolley radius. Two synchronized canvas views — front elevation and top plan — update live as the jib rotates, the trolley travels, and the hook rises or descends. A load-capacity curve tracks the current operating point against rated limits at all times.

Content

Front Elevation View — Animated cross-section showing the mast lattice structure, slewing ring, operator cab, main jib with tie rods, counterjib with counterweight, trolley, hoist cable, hook block, and load. Height reference lines mark 10m intervals. A ground-level arrow indicates the current load radius projection.

Top Plan View — Bird's-eye view showing jib rotation against a compass grid. Three concentric zone rings display the safe (green), caution (amber), and danger (red) radius bands. The load footprint is shown at the trolley position, and the current trolley radius is labeled along the jib.

Load-Capacity Curve — A radius-vs-tonnage chart based on a simplified rated capacity curve. Green, amber, and red shaded areas mark the safe, caution, and danger utilization bands. The current operating point moves in real time as radius or load changes.

Safety Zones

• Safe — below 80% of rated capacity at the current radius
• Caution — 80–95% of rated capacity
• Danger — above 95%; overload risk, reduce load or radius

Controls

• Jib rotation (0–360°), load radius (5–60m), hook height (2–50m), lifted load (0.5–12t), jib length (30–70m)
• Auto Demo cycles through eleven waypoints covering normal, caution, and overload conditions
• Pause and Reset buttons

Metrics Panel — Live readings for load radius, hook height, jib angle, lifted load, rated capacity at current radius, and utilization percentage. A status badge and plain-language advisory update with each change.

🌀 Hero — Live Hurricane Spiral Animation

320 particles spiral across the canvas like a real hurricane, with a calm glowing Eye at the center.

📋 5-Stage Formation Explorer

Click through Tropical Disturbance → Depression → Storm → Hurricane → Major Hurricane — each stage switches to its own canvas animation, description, and key metrics.

🔬 Hurricane Cross-Section

Hover or click to highlight the Eye, Eyewall, inner/outer rainbands, surface inflow, and upper outflow — waves and airflow arrows animate in real time.

⚡ 4 Energy Charts

• Wind speed intensification curve over time
• Energy output comparison bars (City → Nuclear bomb → Hurricane)
• Central pressure drop vs. wind speed increase
• Rainfall rate distribution by zone

🌡️ Saffir-Simpson Wind Scale

Scroll into view and Cat 1→5 bars fill in sequence, comparing wind speeds and damage levels.

🌍 Coriolis Effect Simulation

Dual canvas side-by-side — Northern Hemisphere (counter-clockwise) vs. Southern Hemisphere (clockwise) rotation.

6 ways to feel the scale of a supernova's brightness:

Brightness Ladder — Interactive log-scale ruler from a candle to a supernova. Click each object to see where it sits.

Distance Cards — One supernova outshines 300 billion stars combined. SN 1987A was visible to the naked eye from 168,000 light-years away.

Live Simulation — Trigger a real-time explosion: Normal → Core Collapse → Ignite → Fade, with a live brightness history graph.

Comparison Chart — Log-scale bars from candle to quasar, plus a 13-step slider to explore the full spectrum.

6 Analogies — Pacific Ocean vs. a teardrop. 317 years vs. 1 second. All of New York City's power from a single point in space.

Supernova Timeline — Core collapse in 100ms → shockwave breakout → peak brilliance for 3 days → months-long fade powered by radioactive nickel decay.

개요

2035 미래 직업 지도는 AI, 로봇, 바이오, 기후·에너지, 우주 산업 등 미래 기술과 사회 변화에 따라 직업과 업무 방식이 어떻게 달라질 수 있는지 시각적으로 탐색하는 교육용 콘텐츠입니다.

주요 내용

• 🧠 AI·데이터 — AI 에이전트, AI 안전, 데이터 관련 직업
• 🤖 로봇·모빌리티 — 로봇, 자율주행, 드론 관련 직업
• 🧬 바이오·헬스 — 디지털 헬스, 정밀의료, 고령화 관련 직업
• 🌍 기후·에너지 — 탄소, 재생에너지, 기후 대응 관련 직업
• 🚀 우주·초연결 — 위성, 우주 시스템, 우주산업 관련 직업
• 🎨 인간·창작·경험 — AI 시대에도 중요한 창작, 교육, 커뮤니케이션 분야

또한 AI에 맡길 수 있는 업무와 사람이 더 중요해지는 업무, 미래 핵심 역량, 진로 탐색 과정을 함께 보여주어 **“미래에 어떤 직업을 선택할 것인가”뿐 아니라 “어떤 능력을 준비해야 하는가”를 생각해 볼 수 있도록 구성했습니다.

Title

The Future of Software Development in the AI Era



Overview

Explore how AI may transform the way developers work. This interactive visualization shows the shift from traditional coding to AI-assisted development, agent orchestration, system design, verification, and outcome-driven engineering.

세계에서 가장 오래 살아남은 프로그래밍 언어 중 하나. 지금 이 순간에도 전 세계 은행·정부·항공사의 핵심 시스템은 COBOL로 돌아가고 있습니다.

발명의 역사 시각화 페이지

불의 발견부터 미래 기술까지, 인류 문명을 형성한 위대한 발명들을 9개 섹션으로 시각화한 한국어 인터랙티브 페이지입니다.

타임라인에서 고대부터 AI 시대까지 37개 핵심 발명을 카테고리별로 탐색하고, 시대별 평균 수명과 발명 건수의 상관관계를 차트로 확인할 수 있습니다. 에너지·의학·통신·소재 등 8대 분야별 발명을 정리하고, 다빈치·에디슨·테슬라·퀴리 등 12명의 발명가 명예의 전당도 담았습니다. 소재 혁명(석기→그래핀), 에너지 혁명(불→핵융합), 통신의 역사(쐐기문자→스마트폰), 생명을 구한 의학 발명 12선을 거쳐, 핵융합·AGI·뇌-컴퓨터 인터페이스 등 미래 발명 8개와 예상 시기로 마무리됩니다.

컴퓨팅의 역사 시각화 페이지

주판에서 양자 컴퓨터까지, 인류가 만든 "생각하는 기계"의 80여 년 역사를 9개 섹션으로 시각화한 한국어 인터랙티브 페이지입니다.

타임라인으로 주요 이정표를 시대별로 필터링해 탐색하고, 무어의 법칙 차트로 트랜지스터 수의 기하급수적 성장을 확인할 수 있습니다. 컴퓨터 5세대 분류, 메인프레임부터 클라우드까지의 플랫폼 변화, FORTRAN부터 AI 코딩까지의 프로그래밍 언어 진화도 다룹니다. 이어서 OS 역사, 인터넷 탄생과 성장, 튜링 테스트부터 ChatGPT까지의 AI 연대기를 거쳐, 양자 컴퓨팅·AGI·공간 컴퓨팅 등 미래 기술 전망으로 마무리됩니다.

디자인이 좋아 보이는 이유

좋은 디자인은 단순히 “예쁜 화면”이 아닙니다. 사용자가 어디를 봐야 하는지 쉽게 알 수 있고, 읽기 편하며, 무엇을 해야 하는지 고민하지 않아도 되는 화면이 좋은 UI입니다. 아래 예제를 직접 비교하면서 차이를 확인해 보세요.

피싱은 사람을 급하게 만들고, 믿게 만들고, 클릭하게 만드는 공격입니다. 아래 5가지 신호만 먼저 확인해도 위험한 메시지를 알아차리기 훨씬 쉬워집니다.

정보보안은 해커만 알아야 하는 어려운 기술이 아닙니다. 집의 문을 잠그고, 중요한 물건을 금고에 넣고, 낯선 사람을 조심하는 것처럼 디지털 세상에서도 내 정보와 계정을 안전하게 지키는 생활 습관입니다.

시간을 재생하면 로마, 몽골, 오스만, 대영제국이 역사 속에서 등장하고 확장하며 전성기를 지나 쇠퇴하는 흐름을 지도 위에서 시각적으로 확인할 수 있습니다.