Tools/Code Validation

Developer Code & Schema Validation Tools

Audit configuration syntax and dataset schemas locally. Our in-browser AST engines process files entirely in-memory with zero server transmissions.

Linguistic

Markdown File Validator

Validate Markdown and MDX documents for structural hierarchies, heading levels, image alt attributes, and link syntax rules.

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Data Guard

CSV & Dataset Validator

Audit CSV and tabular datasets for schema compliance, duplicate primary keys, value type parity, and null value thresholds.

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YAML Guard

YAML Schema & Syntax Validator

Audit YAML files for syntax compliance, duplicate keys, unquoted Norway boolean keywords, and schema constraints.

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Spatial Guard

GeoJSON Spatial Contract Linter

Audit GeoJSON files for self-intersecting geometries, winding order directions, coordinate snaps, antimeridian gaps, and bbox limits.

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JSON Guard

JSON & JSON Schema Validator

Audit JSON documents for syntax validation, duplicate keys, numeric precision loss, credentials exposure, and JSON Schema presets.

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Diagram Guard

Mermaid Diagram Syntax & Semantic Validator

Lint Mermaid.js diagrams for syntax errors, circular dependencies, disconnected nodes, and accessibility issues. Scans .mermaid, .md, and .mdx files.

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Excel Guard

Excel (XLSX) Schema Validator

Audit Excel spreadsheets for schema compliance, sheet tab existence, column datatypes, cell formula errors, and primary key uniqueness.

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Env Guard

.env File Validator & Secret Risk Scorer

Audit environment variable configurations for syntax issues, trailing whitespaces, duplicate keys, exposed secrets, variable interpolation, and example template sync drift.

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TOML Guard

TOML Schema & Syntax Validator

Audit TOML config files for syntax compliance, duplicate keys, key casing styles, Windows backslash escapes, unquoted boolean warnings, credentials leaks, and schema preset requirements.

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i18n Guard

i18n Locale File Validator & Comparison Workspace

Audit GNU Gettext PO, XLIFF, and Flutter ARB localization files. Detect missing keys, broken HTML tags, placeholder mismatches, formatting drift, and fuzzy translations side-by-side.

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Developer API SDK

Automate syntax validations in build runners

Integrate our structured YAML syntax, CSV schema, and Markdown heading compliance checkers directly into your CI/CD pipelines or local CLI pre-commit hooks.

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Free Developer Code and Structured Data Validation Tools | TaskVerified