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Data & Format Tools

Format, validate, and convert structured data without sending it anywhere. Pretty print and validate JSON with line numbered errors, convert between JSON, YAML, TOML, and CSV, format SQL and XML, generate TypeScript types from JSON, and convert numbers between bases. Every tool here runs entirely in your browser, so config files, database exports, and API payloads never leave your machine.

Data & Format

JSON Formatter & Validator

Format, validate, and minify JSON with clear error messages and line numbers.

Data & Format

Number Base Converter

Convert numbers between binary, octal, decimal, and hexadecimal instantly.

Data & Format

JSON ↔ CSV Converter

Convert JSON to CSV and CSV to JSON, with quoted fields and nested values handled.

Data & Format

Chmod Calculator

Build Unix file permissions visually and get the octal and symbolic notation for chmod.

Data & Format

YAML ↔ JSON Converter

Convert YAML to JSON and JSON to YAML instantly in your browser.

Data & Format

JSON ↔ TOML Converter

Convert JSON to TOML and TOML to JSON instantly in your browser.

Data & Format

SQL Formatter

Format and beautify SQL queries with dialect and keyword case options.

Data & Format

JSON to TypeScript

Generate TypeScript interfaces from a JSON sample, with nested types.

Data & Format

XML Formatter

Format, indent, and minify XML in your browser with clear structure.