The precision developer toolkit for JSON, YAML, & Code.

Pretty-print with 2, 3, or 4-space indent, or minify to one line. Deep key sorting.

Auto-fix broken JSON, Python dicts, trailing commas, comments, and unquoted keys.

Syntax-only validation with exact line, column, and character offset pinpointing.

Validate payload data against Draft-07 schemas with JSONPath errors.

Compare JSON, YAML, code, or text side-by-side with full line & character diffs.

Interactive tree explorer. Click any node to copy JS dot, JSONPath, or jq paths.

Decode JSON Web Tokens instantly. Inspect claims, header, and expiration times.

Extract JSON payloads from cURL and generate JS Fetch, Python, and Go code.

Generate robust TypeScript interfaces and types with optional/readonly support.

Convert JSON trees to clean, indented YAML for Kubernetes, Compose, and configs.

Parse YAML configs, manifests, or snippets to clean formatted JSON.

URL encode deep objects with bracket, dot, or JSON nesting notations.

Parse URL query parameters, full URLs, and bracket structures to JSON.

Transform JSON filters to parameterized WHERE or objects to INSERT statements.

Deterministic CSV parser with custom delimiters, header toggles, and auto-typing.

Export array of JSON objects to RFC-4180 CSV with custom delimiters.

Generate idiomatic Go structs with json tags and nested struct definitions.

Compile JSON to Python @dataclass, TypedDict, or valid literal source code.

Draft clean models.Model schemas with field lengths and nullability hints.

Encode & decode Base64 with full UTF-8 and URL-safe support. Instant 2-way swap.

MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512 and HMAC — client-side, instant.

Generate UUID v4, UUID v7, NanoID, and CUID in bulk. Fast, secure, and private.

Test JavaScript Regular Expressions with live match highlighting and group extraction.

Convert crontab expressions into plain English schedules and calculate next execution dates.

Real-time Jinja2 sandbox with filters, loops, and zero server execution.