Developer Tools
30 Digital UtilitiesJSON formatter, validator, JWT debugger, UUID generator, base64/URL encoders, and Web Crypto hash calculators. Private, secure processing with zero permanent file storage.
Developer Tools
Essential engineering utilities for software engineers and web developers. Format JSON, debug JWT tokens, encode URL strings, and compute cryptographic hashes locally.
JSON Formatter, Validator & Tree Viewer
formatterFormat, beautify, minify, validate JSON data with exact syntax error highlighting and interactive tree inspection.
CSS Minifier & Compressor
formatterMinify CSS stylesheets by stripping comments, spaces, newlines, and trailing semicolons to maximize load speed.
SQL Query Formatter & Beautifier
formatterBeautify, indent, and uppercase SQL queries with clean syntax formatting.
JSON Diff & Compare Tool
jsonCompare two JSON objects or files semantically with key-by-key added, removed, and modified highlighting.
SQL Query Formatter & Syntax Beautifier
sqlFormat, indent, beautify, and standardize unformatted SQL queries with uppercase keywords and line wrapping.
YAML to JSON Parser & Structure Validator
formatsConvert YAML configurations to clean JSON structures and vice versa with syntax error validation.
Base64 Text Encoder & Decoder
encoderEncode and decode standard UTF-8 text strings to and from Base64 representation.
URL Encoder & Decoder
encoderPercent-encode and decode query parameters, path components, and complete URLs.
JWT Decoder & Token Inspector
decoderDecode JSON Web Tokens (JWT) into human-readable Header, Payload, and Signature components.
HTML Entity Encoder & Decoder
encoderEncode special characters into HTML entities (&, <, >) and decode entities back to plain text.
Base64 File Encoder & Binary Decoder
encodingConvert binary files, PDFs, and images into Base64 Data URIs and decode Base64 strings back to downloadable files.
UUID v4 Generator
generatorGenerate cryptographically secure random UUID Version-4 identifiers in bulk.
Cryptographic Hash Generator
generatorGenerate SHA-256, SHA-512, SHA-1, and MD5 cryptographic hashes from text strings or files.
Unix Timestamp & Epoch Converter
converterConvert Unix epoch timestamps (seconds and milliseconds) to human-readable dates and vice versa.
RegEx Tester & Match Highlighter
testerTest regular expressions in real-time with syntax error detection, group capture breakdown, and match highlighting.
XML to JSON & JSON to XML Converter
converterBidirectionally convert data structures between XML documents and JSON objects.
Cron Expression Generator & Human Parser
generatorGenerate and decode standard 5-part cron expressions with human-readable English explanations.
YAML to JSON & JSON to YAML Converter
converterConvert configuration files seamlessly between YAML and JSON formats.
Strong Password Generator
securityGenerate cryptographically secure random passwords, memorable passphrases, and numeric PINs with entropy measurement.
cURL to Fetch & Code Converter
converterConvert cURL command-line requests into JavaScript fetch(), Axios, Python requests, and Go net/http code.
Regex Explainer & Interactive Pattern Tester
testerTest regular expressions with real-time capture group visualization and plain-English pattern token breakdown.
JWT Inspector & Claims Security Analyzer
securityDecode and inspect JSON Web Tokens (JWT) with claim validation, expiration timeline, and security vulnerability analysis.
Cron Expression Generator & Human Explainer
automationBuild, debug, and translate standard 5-part cron schedule expressions into plain English descriptions.
JSON to XML Converter & Formatter
dataConvert structured JSON payloads to clean, indented, and well-formed XML documents with customizable root tags.
JSON to YAML Converter & Beautifier
dataConvert complex JSON configurations into clean, human-readable YAML for Docker Compose, Kubernetes, and CI/CD pipelines.
UUID v5 Generator (Deterministic SHA-1 Namespaces)
securityGenerate deterministic, reproducible RFC 4122 UUID version 5 identifiers from DNS, URL, OID, or custom namespaces.
JSON to TypeScript Interface & Type Generator
code-generationGenerate strongly-typed TypeScript interfaces and type definitions from JSON data.
JSON Schema (Draft-07) Auto-Generator
code-generationGenerate standards-compliant JSON Schema (Draft-07) definitions from sample JSON data.
SQL CREATE TABLE to TypeScript Interface Converter
code-generationGenerate TypeScript type definitions and interfaces from SQL DDL CREATE TABLE statements.
Developer JSON Toolkit & Data Transformation Suite
workflowsAll-in-one developer workspace to format, validate, minify, diff, and generate TypeScript from JSON.
Frequently Asked Questions
Is it safe to paste private API keys or JWT tokens?
Yes. All parsing and cryptographic hash calculations use the browser Web Crypto API and client-side JavaScript. Nothing is sent to our servers.
Does the JSON Formatter validate syntax errors?
Yes. The tool pinpoints exact line numbers, character positions, and mismatched brackets with syntax error highlighting.
Can I generate UUIDs offline?
Yes. Version 4 UUID generation uses standard cryptographically strong random values from crypto.getRandomValues().