Developer Tools That Just Work

Pretty-print and beautify JSON with syntax highlighting and indentation control.

Validate JSON syntax instantly with detailed error messages and line numbers.

Compare two JSON files side-by-side with a syntax-aware unified diff view.

Deep structural comparison showing added, removed, and changed fields.

Remove whitespace and compress JSON to reduce payload size.

Transform compact JSON into human-readable indented format.

Generate a JSON Schema from any JSON. Detects types, formats, and nested structures.

Convert YAML to JSON and JSON to YAML instantly with syntax validation.

Convert XML to JSON and JSON to XML with full attribute support.

Convert JSON arrays to CSV and CSV back to JSON with type detection.

Convert CSV to JSON with header detection and auto type parsing.

Convert Markdown to HTML with live preview. Supports GFM, tables, code blocks.

Percent-encode URLs and decode encoded strings. Parse query parameters.

Encode special characters to HTML entities and decode them back.

Generate TypeScript interfaces or type aliases from JSON.

Generate Java POJOs with getters/setters and Jackson annotations.

Generate Python dataclasses or Pydantic models with type hints.

Generate Go structs with JSON tags and proper type mapping.

Decode JWT tokens and inspect header, payload, and expiry claims.

Encode or decode Base64 strings. Supports standard and URL-safe variants.

Generate MD5, SHA1, SHA256, SHA512 and SHA3 hashes from any text.

Test regular expressions with real-time match highlighting and quick patterns.

Generate UUID v4 strings. Bulk generation with one-click copy.

Convert Unix timestamps to dates and vice versa with timezone support.

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

Format and beautify SQL queries. Supports MySQL, PostgreSQL, SQLite, BigQuery.