Create beautiful diagrams and UI wireframes with Lekh Diagram, a sketch recognition diagramming app, on iOS and Android devices

Lekh Diagram Demo

Lekh Diagram features

Shape recognition

The Lekh Diagram has a powerful shape recognition engine. You draw a rough shape using your finger and Lekh Diagram will recognize the shape. Apart from recognizing shapes, it also recognizes connections between shapes. Draw two or more shapes and connect them in various ways (using touch gestures), the Lekh Diagram will recognize those connections.

Example of Lekh Diagram shape recognition. In the images below, dark circle represents your finger while drawing
Your drawing Shape recognized Your drawing Shape recognized

Regularize shapes

For making a shape more regular, select the shape by tapping on it and then tap on the menu button shown on selection rectangle.
For example:
Original shape Regularized shape Original shape Regularized shape
Making square
Rounded rectangle
Equilateral triangle

Connecting shapes

Your drawing Recognition Your drawing Recognition

Drawing and erasing arrows

Using simple touch gesture you can draw arrows or erase at end points of a line, polyline and curves.
Your drawing Recognition Your drawing Recognition

Customizing shapes by moving vertex and control points

The Lekh Diagram provides a powerful way of vertex/control point editing. You can modify/customize any shape by moving vertex or control points of the shape. The Lekh Diagram makes you to do this very preciously using "vertex handle". This is how it works:

Tap on any shape to select

vertices and control points are shown as dots on the selected shape. Tap on any vertex or control point to get the vertex handle

Now you can move the vertex by dragging the vertex handle placing your finger anywhere on the vertex handle. This way the vertex/control point that you are moving is not hidden behind your finger. So you can precisely place the point anywhere.

Similarly you can customize other shapes too. For example you can customize bezier curve by moving their control points

Scaling and rotating shapes

Lekh Diagram lets you to scale and rotate shapes using multi touch gestures.

Aligning shapes

The Lekh Diagram gives you a powerful way of moving and aligning shapes. It draws horizontal and vertical alignment line while you are moving any selected shape. It displays the center and control points of other shapes while you are dragging a shape. This makes you to easily align shapes.

Adding Text

Adding text inside you diagram is very easy using Lekh Diagram. You can add text two ways:

Other features

Apart from above, Lekh Diagram has many more features. Some of them listed here

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