InkTeX

Draw math equations freehand. Get instant LaTeX + computed answers. Fully offline — CNN inference runs in WebAssembly.

InkTeX — Handwritten Math to LaTeX Draw any math equation on the canvas using your mouse or stylus. InkTeX instantly recognises each symbol using a trained neural network, converts the expression to LaTeX, renders it beautifully, and computes a numerical answer — all locally in your browser with no server or internet required. FEATURES • Draw equations freehand — digits, Greek letters, trig functions, integrals, fractions, exponents, and more (72 symbol classes) • Instant LaTeX output rendered with KaTeX • Numerical evaluation: 4+4 → 8, sin(π) → 0, (1/2)^2 → 0.25 • One-click Copy button for the raw LaTeX string • Undo (Ctrl+Z), eraser, adjustable pen size • Fully offline — CNN inference runs via ONNX Runtime WebAssembly • Clean white drawing canvas optimised for symbol recognition HOW TO USE 1. Click the InkTeX icon in your toolbar 2. Draw a mathematical expression on the white canvas 3. Click Solve 4. See the rendered LaTeX and computed answer 5. Hit Copy to paste the LaTeX into your document or editor PRIVACY No data ever leaves your browser. Inference runs entirely on-device via WebAssembly. No accounts, no telemetry, no network requests. SYMBOL SUPPORT Numbers (0–9), basic operators (+, −, ×, /), parentheses, equals, letters (a–z, A–Z subset), Greek (α β γ δ θ λ μ π φ σ Δ), functions (sin cos tan log), calculus (∫ ∑ lim d), set notation, arrows, and more.