{ }

DATA TOOLS

Schemas & structured formats

Work with TOML, INI, ENV, properties, schemas, MIME types, and fixtures.

17 specialized tools100% local processing

RECOMMENDED START

Begin with the primary workflow

Open the recommended tool, or compare the grouped alternatives below.

View Data tools

FEATURED FORMATTING AND CLEANUP

TOML Formatter

parse TOML and serialize it with consistent tables, arrays, strings, and spacing.

Local browser processing
Input validation before transformation
Syntax-aware editable output

Validation and checks2 options

TOML Validatorvalidate TOML syntax and report the number of top-level keys.

JSON Schema Validatorvalidate JSON against a safe static subset of JSON Schema type and structural keywords.

Formatting and cleanup5 options

INI Formatterparse INI sections and key-value pairs and emit consistent equals-sign formatting.

JSON Schema Formattervalidate and pretty-print a JSON Schema document for review and version control.

Properties File Beautifiernormalize Java-style properties assignments, comments, escaped values, and continuation indentation.

ENV File Beautifiernormalize dotenv assignments and comments without expanding variables or executing substitutions.

HOCON Beautifierapply readable spacing and indentation to common HOCON objects, arrays, assignments, substitutions, and comments.

Analysis and utilities5 options

ENV File Parserparse dotenv-style assignments into JSON without expanding variables or executing commands.

JSON to ENVconvert a flat JSON object with valid variable names and scalar values into dotenv assignments.

Properties File Parserparse common Java properties key-value syntax and Unicode escapes into JSON.

MIME Type Lookuplook up common MIME types by extension or list extensions for an exact MIME type.

File Extension Lookupidentify the common MIME type and broad file category for a filename or extension.

Generators and builders4 options

Fake JSON Data Generatorgenerate deterministic user-shaped JSON records for demos, fixtures, and UI testing.

Mock API Response Generatorwrap JSON data in a predictable HTTP-style status, headers, body, and mock metadata structure.

JSON Schema Generatorinfer a draft 2020-12 JSON Schema from the structure and primitive types in sample JSON.

Data URI Generatorencode UTF-8 text as a Base64 data URI with an explicit MIME type.