GVAS Editor

GVAS Editor provides a safe, non-destructive editing workflow for GVAS files. Users upload a .gvas file or supply content, the system parses it into an explicit AST, validates structure, and exposes a structured representation for edits. Edits can be applied as precise node changes, list insertions, or template-driven updates, all while preserving original data unless export is requested.

Conceptually the tool uses a formal grammar for GVAS to build a canonical AST, then a deterministic serializer converts the tree back to GVAS. Validation checks include required fields, type constraints, version compatibility, and cross-field references. When a change is made, a non-destructive patch is computed and can be reviewed via a JSON diff. Export supports both GVAS and JSON representations.

Audience includes game developers, asset pipeline engineers, modders, and QA teams who need repeatable edits, versioned changes, and error detection without hex-level tooling. Benefits include faster edits, lower risk of corruption, and easier collaboration.

Core features include file upload, parse and validate, AST editor, diff and patch, batch templates, non-destructive editing, and export options with integrity checks. Use cases include fixing broken fields in a dataset, porting assets between versions, automating repetitive edits, or generating JSON schemas for tooling.