Browser-based engineering tools
XL4Sim — Online Engineering Simulation Tools
Rapid, transparent first-pass analysis for structural, thermal, and dynamic problems. No installation. Clear assumptions. Practical outputs.
Built for engineers, designers, students, and technical builders. Use for concept exploration and preliminary sizing.
What you can do here
- Structural: beams, frames, buckling, vibration, bolted joints
- Dynamics: drop shock, base excitation, vehicle dynmaics
- Thermal: air and water heat sinks, HVAC load estimates
- Rubber Part Design: stiffness, molded shrinkage, shear strains, state-of-cure
- Design trade studies: fast parameter exploration
Tip: Start with the module directory if you’re not sure where to begin.
Open the module directory →
Fast first-pass answers
Get directional results in minutes to guide early design decisions.
No installation
Runs entirely in the browser — accessible anywhere, easy to share.
Transparent methods
Assumptions and equations are visible so you can validate and trust outputs.
Workflow-friendly
Designed for quick iteration, scenario comparison, and documentation.
Tool categories
Browse by discipline. Each category links to curated modules and a full directory.
Structural & Mechanical
Start here
New to XL4Sim? Use the directory to find the right module quickly.
Open module directory View examplesBuilt on established engineering principles
Modules are intended for preliminary design, feasibility checks, and concept exploration.
