nst/JSONTestSuite resource

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1163 stars · 177 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A comprehensive test suite of JSON files for validating RFC 8259 compliant JSON parsers, with files named to indicate whether content must be accepted, rejected, or is implementation-defined. It includes wrapper scripts for many parsers and a Python runner that generates comparison results.

Use cases

• test my parser against a conformance suite
• check which parsers accept invalid
• compare parser implementations
• find edge cases in parsing like huge numbers and duplicate keys
• validate rfc 8259 compliance of a library
• run parser tests and generate an html report

When to choose

• you are building or testing a JSON parser and need a standard conformance test suite
• you want to compare how different JSON parsers handle edge cases
• you need known-good and known-bad JSON test files

When to avoid

• you need a JSON parser or serializer library rather than test data
• you need testing for JSON Schema or JSON5 rather than strict RFC 8259 JSON

Facets

dataset · maturity stable

testing parser fuzzing parsers testing developer-tools cross-platform python cli -parsing test-suite rfc-8259 conformance-testing parser-comparison

Member repositories

For agents

markdown · JSON · MCP: product_card(name="nst/JSONTestSuite")