Developer Tools

JSON formatter, validator, JWT debugger, UUID generator, base64/URL encoders, and Web Crypto hash calculators.

JSON Formatter, Validator & Tree Viewer

Format, beautify, minify, validate JSON data with exact syntax error highlighting and interactive tree inspection.

formatter

Base64 Text Encoder & Decoder

Encode and decode standard UTF-8 text strings to and from Base64 representation.

encoder

URL Encoder & Decoder

Percent-encode and decode query parameters, path components, and complete URLs.

encoder

JWT Decoder & Token Inspector

Decode JSON Web Tokens (JWT) into human-readable Header, Payload, and Signature components.

decoder

UUID v4 Generator

Generate cryptographically secure random UUID Version-4 identifiers in bulk.

generator

Cryptographic Hash Generator

Generate SHA-256, SHA-512, SHA-1, and MD5 cryptographic hashes from text strings or files.

generator

Unix Timestamp & Epoch Converter

Convert Unix epoch timestamps (seconds and milliseconds) to human-readable dates and vice versa.

converter

RegEx Tester & Match Highlighter

Test regular expressions in real-time with syntax error detection, group capture breakdown, and match highlighting.

tester

XML to JSON & JSON to XML Converter

Bidirectionally convert data structures between XML documents and JSON objects.

converter

HTML Entity Encoder & Decoder

Encode special characters into HTML entities (&, <, >) and decode entities back to plain text.

encoder

CSS Minifier & Compressor

Minify CSS stylesheets by stripping comments, spaces, newlines, and trailing semicolons to maximize load speed.

formatter

Cron Expression Generator & Human Parser

Generate and decode standard 5-part cron expressions with human-readable English explanations.

generator

SQL Query Formatter & Beautifier

Beautify, indent, and uppercase SQL queries with clean syntax formatting.

formatter

YAML to JSON & JSON to YAML Converter

Convert configuration files seamlessly between YAML and JSON formats.

converter

Strong Password Generator

Generate cryptographically secure random passwords, memorable passphrases, and numeric PINs with entropy measurement.

security

JSON Diff & Compare Tool

Compare two JSON objects or files semantically with key-by-key added, removed, and modified highlighting.

json

cURL to Fetch & Code Converter

Convert cURL command-line requests into JavaScript fetch(), Axios, Python requests, and Go net/http code.

converter

Regex Explainer & Interactive Pattern Tester

Test regular expressions with real-time capture group visualization and plain-English pattern token breakdown.

tester

JWT Inspector & Claims Security Analyzer

Decode and inspect JSON Web Tokens (JWT) with claim validation, expiration timeline, and security vulnerability analysis.

security

SQL Query Formatter & Syntax Beautifier

Format, indent, beautify, and standardize unformatted SQL queries with uppercase keywords and line wrapping.

sql

YAML to JSON Parser & Structure Validator

Convert YAML configurations to clean JSON structures and vice versa with syntax error validation.

formats

Cron Expression Generator & Human Explainer

Build, debug, and translate standard 5-part cron schedule expressions into plain English descriptions.

automation

Base64 File Encoder & Binary Decoder

Convert binary files, PDFs, and images into Base64 Data URIs and decode Base64 strings back to downloadable files.

encoding

JSON to XML Converter & Formatter

Convert structured JSON payloads to clean, indented, and well-formed XML documents with customizable root tags.

data

JSON to YAML Converter & Beautifier

Convert complex JSON configurations into clean, human-readable YAML for Docker Compose, Kubernetes, and CI/CD pipelines.

data

UUID v5 Generator (Deterministic SHA-1 Namespaces)

Generate deterministic, reproducible RFC 4122 UUID version 5 identifiers from DNS, URL, OID, or custom namespaces.

security

JSON to TypeScript Interface & Type Generator

Generate strongly-typed TypeScript interfaces and type definitions from JSON data.

code-generation

JSON Schema (Draft-07) Auto-Generator

Generate standards-compliant JSON Schema (Draft-07) definitions from sample JSON data.

code-generation

SQL CREATE TABLE to TypeScript Interface Converter

Generate TypeScript type definitions and interfaces from SQL DDL CREATE TABLE statements.

code-generation

Developer JSON Toolkit & Data Transformation Suite

All-in-one developer workspace to format, validate, minify, diff, and generate TypeScript from JSON.

workflows