DemoDSL
63+ Visual Effects — One YAML Config
🎬 4K Selenium Recording
Browser Effects
Real-time JavaScript effects injected directly into the browser. Spotlight, confetti, particles — all rendered at native resolution.
💡
Spotlight
Dramatic lighting focus on key elements with adjustable intensity and radius.
🎉
Confetti & Fireworks
Celebration effects with particles, sparkles, and explosive animations.
✨
Neon Glow
Vibrant neon outlines and glowing text effects with custom colors.
🌊
Ripple & Shockwave
Dynamic wave propagation effects centered on interaction points.
❄️
Snow & Bubbles
Ambient particle systems with physics-based movement and collision.
🔥
Cursor Trails
7 trail variants: rainbow, comet, fire, glow, line, particles, and classic.
By The Numbers
Built for speed. Designed for impact.
Simple YAML Config
Describe your demo in YAML. DemoDSL handles the rest — recording, effects, narration, and export.
# One config, infinite demos
metadata:
title: "My Product Demo"
scenarios:
- name: "Feature Tour"
provider: "selenium"
viewport: { width: 3840, height: 2160 }
steps:
- action: "navigate"
url: "https://myapp.com"
effects:
- type: "spotlight"
- type: "confetti"
01
Write your demo scenario in YAML
02
DemoDSL launches a browser and records at 4K
03
Effects are injected in real-time via JavaScript
04
Post-processing adds cinematic camera movements
05
Final video exported with narration & subtitles
Camera & Cinema
Post-processing effects applied frame-by-frame. Drone zoom, ken burns, dolly zoom, tilt shift — cinematic quality.
Drone Zoom
Smooth progressive zoom towards a focal point — simulates aerial descent.
Ken Burns
Slow pan + zoom across the frame — classic documentary style.
Dolly Zoom
Vertigo effect — zoom in while pulling back, or vice versa.
Tilt Shift
Selective focus blur — makes scenes look miniature.
Whip Pan
Fast directional motion blur — dramatic scene transitions.
Camera Shake
Controlled vibration — adds energy and urgency.
Retro & Transitions
CRT scanlines, VHS distortion, glitch, chromatic aberration — and smooth transitions between scenes.
Retro
CRT/vhs
- CRT Scanlines
- VHS Distortion
- Chromatic Aberration
- Pixel Sort
Glitch
FX/mix
- Glitch Effect
- Color Grade
- Film Grain
- Bloom & Light Leak
Transitions
CUT/mix
- Wipe
- Iris
- Dissolve Noise
- Fade In / Out
What Users Say
"DemoDSL turned our 3-day demo production workflow into a 10-minute YAML config. The 4K Selenium recording is a game-changer."
— Sarah K., Product Manager
"The browser effects are mind-blowing. Spotlight, confetti, matrix rain — all injected in real-time. Our demos went viral."
— Marcus T., Developer Advocate
"Post-processing effects like drone zoom and tilt shift make our product videos look like they were shot by a film crew."
— Amira R., Marketing Director
"We automated our entire demo pipeline. One YAML config generates localized demos in 12 languages with narration."
— Jiro N., DevOps Lead
Every Effect. One Tool.
DemoDSL — 63+ effects, 4K recording, YAML-driven automation.