All tools

Convert YAML configuration to readable or compact JSON in the browser. Comments are dropped, and parse errors include line and column when the parser reports them.

Convert valid JSON into YAML with 2-space or 4-space indentation. Nested objects, arrays, and multiline strings are preserved, and invalid JSON is reported instead of repaired.

Convert TOML 1.1 configuration to JSON in the browser, including tables, arrays, strings, booleans, dates, and numbers, with explicit notes where the types differ.

Convert a JSON object to TOML in the browser. Null values and mixed arrays are rejected, and invalid JSON produces no TOML.

Convert one YAML document to TOML in the browser. Comments are dropped, null is rejected, and multi-document streams are not merged.

Convert TOML 1.1 configuration to YAML with 2-space or 4-space indentation. Dates become strings, comments are dropped, and invalid TOML produces no YAML.

Convert a .env file to JSON in the browser. Every value stays a string, duplicate keys are errors, and $ references are not expanded.

Convert a JSON object to .env variables in the browser. Keys become UPPER_SNAKE_CASE, nested keys are joined with __ or _, and values are quoted when needed.

Convert XML to JSON in the browser. Attributes become @ keys, repeated elements become arrays, and invalid XML is reported with its line and column.

Convert JSON to indented XML in the browser. Keys starting with @ become attributes, arrays become repeated elements, and special characters are escaped.

Convert Spring Boot application.properties to application.yml in the browser. Dotted keys become nested YAML, and [0] indexes become lists.

Convert Spring Boot application.yml to application.properties in the browser. Nested keys are joined with dots and lists use [index].

Convert RFC 4180 CSV to JSON in the browser. Quoted commas and newlines are kept, and duplicate headers are rejected.

Convert a JSON array of objects or arrays to CSV in the browser. Nested values are rejected instead of being encoded.

Convert NDJSON or JSON Lines to a JSON array in the browser. Each line is parsed on its own, and an invalid line is reported by number.

Check YAML syntax without converting or rewriting it. Errors include a line and column when the parser provides them, and valid input is left unchanged.

Check JSON syntax in the browser. Errors give a line and column, and duplicate keys that JSON.parse would silently drop are reported.

Check TOML 1.1 syntax without converting or rewriting it. Errors include a line and column when the parser provides them.

Check a .env file without converting it. Duplicate keys, missing equals signs, and $ references are errors, and the editor text is not rewritten.

Check a JSON document against a JSON Schema in the browser. Draft-07 and 2020-12 are supported, and remote $ref values are not fetched.

Validate JSON, then pretty-print it with 2 or 4 spaces or minify it. Invalid JSON produces an error and leaves the output empty.

Minify JSON in the browser by removing whitespace and line breaks. Values are unchanged, and the size saving is shown.

Reformat YAML with consistent 2- or 4-space indentation in the browser. Comments, quotes, anchors, and multiple documents are kept.

Generate TypeScript interfaces from a JSON sample in the browser. Array items are merged, and keys missing from some items become optional.

Generate Zod schemas and inferred TypeScript types from a JSON sample in the browser. Optional keys use .optional() and null values use .nullable().

Generate Go structs with json tags from a JSON sample in the browser. Fields are gofmt-aligned, and keys missing from some array items get omitempty.

Generate Python dataclasses with type hints from a JSON sample in the browser. Optional fields default to None, and keys that are not valid names are renamed.

Generate a draft 2020-12 JSON Schema from a JSON sample in the browser. Types, nested objects, array items, and required keys are inferred.

Check the YAML syntax of a Kubernetes manifest, including files with more than one document. This does not check apiVersion, required fields, or unknown kinds.

Decode the base64 data of a Kubernetes Secret into readable stringData, or encode stringData back into data. Runs in the browser.

Test a JSONPath expression against a JSON document in the browser. Script expressions are disabled, and a path that matches nothing returns an empty list.

Compare two JSON or YAML documents by value in the browser. Key order, formatting, and comments are ignored, and Kubernetes lists are matched by name.