Strict RFC 8259 JSON Formatting, Validation & Diagnostics
JSON (JavaScript Object Notation) is the ubiquitous data interchange format for modern web APIs, configuration files, and cloud architectures. While many permissive parsers tolerate informal syntax extensions, strict RFC 8259 compliance guarantees maximum cross-platform interoperability across Python, Go, Rust, Java, and C# environments without silent data corruption.
Common Non-Compliant JSON Pitfalls
- Trailing Commas: Commas after the final array item (e.g.
[1, 2,]) or object property are strictly prohibited in standard JSON. - Comments: Unlike JavaScript, standard JSON does not permit single-line (
//) or multi-line (/* */) comments. - Unquoted or Single-Quoted Keys: Keys must always be enclosed in standard double quotes (
"key"); single quotes and bare identifiers are invalid. - Non-Finite Numbers: Special numeric values such as
NaN,Infinity, and-Infinitycannot be serialized into JSON. - Leading Zeros & Signs: Numbers like
012or+42violate RFC 8259 lexical specifications.
Precise 1-Based Line & Column Error Positioning
Rather than generic "Unexpected token" errors that leave developers searching through thousands of lines of minified payload, our validator pinpoints the exact 1-based row and column coordinates alongside a visual code pointer (^) without silently rewriting or auto-repairing your input.
Interactive Collapsible AST Tree Inspection
Easily navigate deeply nested JSON payloads with our interactive collapsible tree viewer. Expand and collapse containers on demand, search keys and values, inspect container size metrics (items/keys count), and differentiate data types with distinct visual syntax highlighting—all executed 100% locally in your browser memory without server transmissions.
Frequently Asked Questions
- Esta ferramenta valida estritamente a especificação RFC 8259?
- Sim. Rejeita comentários, vírgulas residuais, aspas simples, chaves sem aspas e números não finitos, fornecendo linha e coluna exatas do erro.
- Meus dados são enviados a algum servidor?
- Não. Todo o processamento é executado 100% no navegador sem qualquer envio de dados.
- Qual a utilidade do escape e desescape de strings?
- Permite transformar textos com quebras de linha e aspas em literais de string JSON válidos de forma reversível.