Lua Validator

The Lua Validator online tool analyzes a Lua code snippet for syntax correctness without executing it. It reports line-accurate errors, counts lines and characters, and offers basic static diagnostics.
Conceptually, the tool tokenizes the input, parses according to Lua grammar, and records diagnostics for unmatched blocks, unexpected tokens, and incomplete statements. It supports a version mode (Lua 5.1–5.4) to reflect language differences.
Who benefits: learners, educators, game developers (Love2D), and scripting teams aiming to reduce debugging time. Use cases include quick syntax checks before runtime, pre-commit checks, and educational feedback.
Core value and features: no runtime, no external calls; deterministic results; outputs include diagnostics, metrics, and structured data for automation. Optional hints cover common patterns like deprecated constructs or long identifiers. Examples: validate a function block, detect an missing end, or catch a stray symbol.