Block diagram editor
Connect sources, logic, maths, controllers and electrical components. Organise larger models into reusable subsystems.
Visual editing · Block libraries · SubsystemsBuild models.
Simulate systems.
Generate code.
Simulation in your browser.
Connect blocks to build a model, run simulations, and export C, C++ or Go source code.
Free to use. No account. No installation.
PI CONTROL EXAMPLEBlock diagram and signal plots
PI controller response and tracking error.Open this model
FEATURES
Modelling and
simulation tools.
Edit models, set simulation parameters, and inspect results in one workspace.
Simulation and plotting
Run control and power system models. Plot signals and compare responses as you change parameters.
Local simulation · Signal plots · What-if studiesCode and model export
Export C, C++ or Go source code. Open and save supported Simulink .slx models, with compatibility reports for unsupported blocks.
Source code export · SLX import and exportBUILT-IN EXAMPLES
Example models.
Open a model to inspect its structure,
run a simulation, or change its parameters.
CONTROL SYSTEMS
PI control & tuning
Compare controller responses using different proportional and integral gains.
POWER SYSTEMS400 kV transmission
Inspect a three-phase network and its response to a timed line-to-ground fault.
BLOCK LIBRARYFeature showcase
Examples of control, nonlinear, logic and noise blocks, with inputs and outputs.
Is the browser app free?
Yes. You can edit models, run simulations, use the built-in examples and export source code without an account or installation.
Where do my models and simulations run?
The free browser app processes your models and runs simulations on your device. Models you open are not uploaded to a simulation server. Save or export your work to keep a file you can reopen.
Can I use existing Simulink models?
Bloctric reads and writes .slx files for supported blocks and features. Import reports identify unsupported or unmapped blocks; compatibility is not complete. Check the report and validate the model's behaviour after import.
What is different in the desktop app?
The browser edition includes local WASM simulation and C/C++/Go source export. This hosted version does not include the optional C compiler for compiled browser execution. Desktop builds provide native execution and additional platform integrations.
Can I work offline?
After opening the app online and allowing its offline cache to finish downloading, you can reopen it at /app/ without a connection. Keep exported copies of your models, since browsers can clear stored data.
BROWSER APP