Format Converters

Convert and validate JSON, YAML, XML, CSV, TOML and INI without leaving the browser.

• JSON to YAML Converter

  Convert JSON to YAML instantly with correct indentation, quoting and nesting. Paste JSON, get valid YAML for Docker, Kubernetes or CI config. Nothing is uploaded.

• YAML to JSON Converter

  Convert YAML to JSON instantly with correct nesting and array handling. Paste a YAML file, get valid JSON for APIs, scripts or config loaders. Nothing is uploaded.

• JSON Formatter

  Format and pretty-print JSON with 2, 4 or custom-space indentation and optional key sorting. Paste minified JSON, get readable output. Nothing is uploaded.

• JSON Minifier

  Minify JSON by removing whitespace and line breaks, with a byte-size comparison before and after. Paste formatted JSON, get a compact payload. Nothing is uploaded.

• JSON to CSV Converter

  Convert a JSON array of objects to CSV with automatic header detection and delimiter choice. Paste JSON, download a spreadsheet-ready CSV. Nothing is uploaded.

• CSV to JSON Converter

  Convert CSV or TSV to a JSON array of objects, with correct handling of quoted fields and a chosen delimiter. Nothing is uploaded — conversion runs locally.

• JSON to TOML Converter

  Convert JSON to TOML with correct table headers, array-of-tables syntax and value types. Paste JSON, get valid TOML for Cargo, pyproject or app config.

• TOML to JSON Converter

  Convert TOML to JSON with correct handling of tables, array-of-tables and inline arrays. Paste a Cargo.toml or pyproject.toml, get valid JSON. Nothing uploaded.

• XML to JSON Converter

  Convert XML to JSON with correct handling of attributes and repeated sibling elements as arrays. Paste XML, get valid JSON. Nothing is uploaded to a server.

• JSON to XML Converter

  Convert JSON to well-formed XML with automatic root-element wrapping and indentation. Paste JSON, get valid XML for SOAP, RSS or config files. Nothing uploaded.

• JSON Validator

  Validate JSON and get the exact line and column of the first syntax error — trailing commas, unquoted keys, missing brackets. Nothing is uploaded.

• YAML Validator

  Validate YAML and get the exact line and column of the first syntax error — bad indentation, tabs, duplicate keys. Nothing is uploaded, runs in your browser.

• XML Formatter

  Reformat minified or inconsistently indented XML into clean, two-space-indented markup, with attributes and self-closing tags preserved. Nothing is uploaded.

• XML Validator

  Validate XML and find the exact line and column of the first well-formedness error — unclosed tags, mismatched tags, bad nesting. Runs in your browser.

• JSON Schema Validator

  Validate a JSON value against a pasted JSON Schema — type, required, properties, enum, minimum/maximum, pattern and items. Nothing is uploaded.

• Subnet Calculator

  Enter an IPv4 address with a CIDR prefix to get the network address, broadcast address, subnet mask and usable host range. Runs in your browser.

• Chmod Calculator

  Convert a Unix file mode between octal (755) and symbolic (rwxr-xr-x) form and see exactly what owner, group and other can do. Runs in your browser.

• Timestamp Converter

  Convert between Unix seconds, Unix milliseconds, ISO 8601 and RFC 2822 date formats in either direction. Computed entirely in your browser, no upload.