Developer Tools
26 JSON, JSON Schema, YAML, XML, CSV, SQL, encoding, hashing, minification, regex, and data utilities for API payloads, config files, and browser-side debugging.
Popular Tools
JSON Schema Validator Online
Check JSON against schema rules for API payloads, config files, and contract validation.
Validate JSON Online
Validate JSON online and catch syntax errors before formatting or schema checks.
JS, CSS & HTML Minifier
Use one JS CSS minifier workflow for scripts, stylesheets, HTML, and copied production snippets.
Markdown Notepad & Preview
Write in a Markdown notepad and preview rendered output or copy HTML in one browser tab.
Available Tools
JSON Schema Validator
Validate JSON data against a JSON Schema with instant feedback.
JSON Validator
Check if your JSON is valid and find syntax errors.
JSON Formatter
Format, minify, and validate JSON with clear feedback.
JSON to CSV
Convert JSON arrays to downloadable CSV files.
JSON to YAML
Convert JSON to YAML for config files.
YAML to JSON
Convert YAML configuration to JSON format.
Base64 Encode/Decode
Encode text to Base64 or decode Base64 to text.
HTML Encoder/Decoder
Encode or decode HTML entities for safe embedding.
URL Encoder/Decoder
Percent-encode or decode URL components.
Hash Generator
Generate SHA-256, SHA-512, and SHA-1 hashes from text.
Regex Tester
Test regex patterns with live matches and capture groups.
JWT Decoder
Decode JWT tokens to inspect header and payload.
Color Converter
Convert colors between HEX, RGB, and HSL.
CSS Minifier
Minify CSS by removing comments and whitespace.
Markdown Preview
Live Markdown to HTML preview with common syntax support.
Password Generator
Generate cryptographically secure random passwords.
UUID Generator
Generate random v4 UUIDs with bulk and format options.
Unix Timestamp Converter
Convert between Unix epoch and human-readable dates.
Text Diff Checker
Compare two texts and see additions, deletions, and changes.
Color Picker & Palette
Pick colors, check contrast ratios, generate palettes.
SQL Formatter
Format and beautify SQL queries with proper indentation.
XML Formatter & Validator
Format, beautify, and validate XML documents.
JSON to XML
Convert JSON data to well-formed XML.
XML to JSON
Convert XML documents to JSON format.
CSV to JSON
Convert CSV data to JSON with custom delimiters.
JS & HTML Minifier
Minify JavaScript and HTML to reduce file size.