Yenka Technology is a powerful, but easy-to-use, simulator for systems and control.

It lets you design circuits, with a vast library of digital and analog electronics, and convert them to PCBs for manufacture. You can program PIC or PICAXE chips, and model the circuit in full 3D, with mechanical inputs and outputs.

Yenka Technology has been designed for children as young as 10 to use – unlike most of our competitors, which are converted industrial simulators.

As a result, Yenka’s interface is easy to learn, and the software simulates as you work – so you can see how your changes affect the circuit straight away.


Yenka Electronics lets you design and simulate circuits using over 150 types of components, testing and refining your design as you work.

Yenka technology screenshot of simulation engine

Professional electronic tools for schools

Based on the original Crocodile Clips simulation engine, Yenka makes electronic design straightforward – even for less experienced users.

Design circuits easily

Choose components from the extensive library, draw wires with your mouse, and see the circuit spring to life.

Analogue electronics

These range from simple power supplies and switches, through inputs, sensors and outputs, to semiconductors and op-amps.

Digital electronics

With logic gates and extensive sets of 4000 and 7400 series ICs.

Edit maximum component ratings

Plus other parameters, by simply clicking on them in your circuit.

Simplified circuit editing

Drag a component onto a wire, and it will be automatically inserted; there’s no need to delete old wires or draw new ones. Drop it on an existing component, and it’ll replace that component.
Study multiple events: roll two dice or flip three coins, and follow the tree diagram to see the probability for each combined outcome.


Yenka lets you write routines using simple flowcharts, and test them on-screen, before using them to program real PIC or PICAXE chips.


Screenshot of Yenka technology programming

Programming is easy

Snap flowchart commands together to program your chip, and click a command to edit its properties – like input status and variable values.

Simulate the full circuit

Use Yenka Electronics with Yenka PICs to design the input and output circuits for your PIC or PICAXE. You can then simulate and test them with the chip.

Program real hardware 

The Windows version of Yenka PICs programs the following real chips directly, provided you’ve got the right programming hardware:

  • PICAXEs 08, 08M, 14M, 18, 18A, 18M, 18X, 20M, 28, 28A, 28X, 28X1

  • PICs 16F627, 16F628, 16F84, 16F84A and 16F872.


Yenka Gears lets you experiment with a range of mechanical components, in full 3D.


Screenshot of Yenka technology gears image

Straightforward 3D design tools

Mechanical components are straightforward to use: they snap together automatically, and can be moved and rotated in each of the 3 dimensions.

Gears can be linked directly to each other, or using a chain drive of any length. Each gear lets you set its diameter precisely, and choose how many teeth it has, and how big they are.

To change the direction of rotation, worm and bevel gears and a rack and pinion are also available. You can connect a crank to the gears to turn them manually, or add wheels of different masses and diameters.

Other Yenka products

Yenka Gears can be used on its own, but it also works seamlessly with other Yenka products.

Screenshot of Yenka technology gears