Starlight Tools

Starlight Tools directory

Linear Algebra & Matrix Calculators

6 free, browser-based tools. No account required.

Work with vectors, matrices, and coordinate transformations using private browser-based linear algebra tools. Start with the Vector Projection Calculator, 2D Rotation Matrix Calculator, or Transformation Matrix Calculator.

Vector projection and dot cross product calculator showing 2D and 3D components

Vector Projection, Dot & Cross Product

Calculate projection, rejection, dot product, cross product, angle, magnitude, and area with steps. v1.0.0

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Vector component resolver splitting vectors into components and magnitude

Vector Component Resolver

Resolve 2D or 3D vectors into components or recover magnitude, azimuth, and elevation. v1.0.0

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Angle between two vectors calculator showing dot product and cosine similarity

Angle Between Two Vectors

Find the angle, dot product, magnitudes, and cosine similarity for 2D, 3D, or 4D vectors. v1.0.0

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Coordinate transformation tool applying translation rotation reflection and scale

Coordinate Transformations

Translate, rotate, reflect, and scale one or many 2D points with matrices and a live preview. v1.0.0

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2D rotation matrix calculator building a matrix and rotating points

2D Rotation Matrix Calculator

Build a rotation matrix, rotate points around any center, or extract an angle from a matrix. v1.0.0

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Transformation matrix calculator composing translation rotation scale and reflection

Geometric Transformation Matrix

Compose ordered 2D transformations into one 3×3 matrix and apply it to points. v1.0.0

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About These Linear Algebra Tools

These tools cover vector operations and matrix-based transformations with numerical results, visual explanations, and working steps. They run locally and support common classroom, graphics, engineering, and data applications.