Developer & Data
JSON formatter, Base64 encoder, regex tester, SQL beautifier, and developer utilities
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(CLS Prevention Active · Zero Shift)Available Tools (40)
JSON Formatter & Validator
Format, beautify, validate, and minify JSON data with instant syntax error highlighting and tree view.
Base64 Encoder & Decoder
Lossless UTF-8 Unicode Base64 encoder and decoder with file upload to Data URL conversion.
LLM Prompt Token & Model Pricing Calculator
Calculate AI prompt tokens and compare monthly API pricing across GPT-6, Claude 5.5, and Gemini 4.
JSON to TypeScript, Zod Schema & Pydantic Converter
Instantly convert JSON objects to TypeScript interfaces, Zod validation schemas, or Pydantic models.
JWT Decoder & Expiration Debugger (100% Client-Side)
Decode JWT headers, payloads, verify expiration claims with live countdowns safely on client-side.
Regex Real-Time Tester & Pattern Snippet Library
Test regular expressions with real-time match highlighting and pre-built production pattern snippets.
Cron Expression Generator & Human Translator
Generate standard 5-field cron strings, read human translations, and check upcoming execution times.
SQL Query Formatter & Beautifier
Format, beautify, and indent complex SQL queries with consistent uppercase keywords.
cURL to JavaScript Fetch, Axios & Python Converter
Transpile cURL CLI commands into clean async JavaScript Fetch, Axios, or Python Requests code.
YAML to JSON & JSON to YAML Validator
Bi-directional YAML and JSON parser with syntax error detection for Kubernetes and Docker files.
HTML to React JSX & Component Converter
Convert standard HTML into React JSX with auto camelCase attributes and self-closing tags.
URL Encoder / Decoder & Query String Parser
Percent-encode and decode URLs with RFC 3986 support and visual query parameter inspector.
SVG Optimizer & React TSX Icon Generator
Compress SVGs losslessly and generate reusable React TSX icon components with currentColor support.
JSON Diff Viewer & Structural Comparator
Deep visual JSON comparison highlighting added, removed, and modified keys and nested values.
XML Beautifier & XML to JSON Converter
Format messy XML code, validate syntax, and convert bidirectionally between XML and JSON.
HTML Entity Encoder & Decoder
Encode and decode reserved HTML entities and Unicode numeric character references for XSS safety.
Unicode & UTF-8 Byte Inspector
Inspect character codepoints (U+XXXX), UTF-8 hex byte sequences, surrogate pairs, and binary representations.
HTTP Status Code Lookup & REST API Guide
Comprehensive HTTP status code directory with RFC specs, cause diagnostics, and REST API best practices.
User-Agent Header Parser & Client Detector
Parse User-Agent strings to extract browser brand, version, OS, device class, in-app webviews, and crawlers.
Crontab Next 20 Run Schedule Simulator
Simulate and verify the next 20 execution timestamps and weekdays of any 5-field cron expression.
SQL IN Clause & Batch Query Generator
Wrap hundreds of newline-delimited IDs or strings into SQL WHERE IN clauses, Python lists, or JSON arrays.
Code Minifier & Beautifier (HTML, CSS, JS)
Minify code weight by removing comments/spaces, or beautify into clean indented syntax.
.gitignore Template & File Builder
Combine tailored .gitignore exclusion templates for languages, frameworks, operating systems, and IDEs.
Content Security Policy (CSP) & Header Builder
Construct robust Content-Security-Policy and HTTP security headers with ready-to-use Nginx and Next.js configs.
Color Blindness UI & Accessibility Simulator
Simulate UI color palettes across Protanopia, Deuteranopia, Tritanopia, and Achromatopsia for universal accessibility.
JSON Schema Generator & Real-Time Validator
Generate standard Draft-07/2020-12 JSON Schema from raw JSON payloads and validate candidate data in real-time.
GraphQL to TypeScript Type Converter
Instantly compile GraphQL SDL schemas, inputs, queries, and enums into clean TypeScript interfaces and types.
Docker Run to Docker Compose Converter
Convert docker run CLI commands into clean, reproducible docker-compose.yml service configurations automatically.
Nginx & Apache Web Server Config Generator
Generate production-ready Nginx and Apache VirtualHost configurations with reverse proxy, SSL, Gzip, and SPA routing.
SemVer Calculator & NPM Range Evaluator
Evaluate NPM version range expressions (^, ~, >=), compare version precedence, and calculate next release bumps.
ASCII Table & Interactive KeyCode Reference
Comprehensive 0-127 ASCII lookup table paired with a live JavaScript KeyboardEvent inspector and code generator.
API Payload Size & Monthly Egress Bandwidth Estimator
Estimate per-request payload sizes, Gzip compression savings, and monthly network bandwidth egress from JSON samples.
Crontab to Systemd Timer Unit Converter
Convert Linux Crontab expressions into modern Systemd .timer and .service unit files with OnCalendar directives.
No-Code Regex Builder & Multi-Language Generator
Visually build common regular expressions (email, phone, password, URL) with live string testing and multi-language code snippets.
Hex to Nearest Tailwind CSS Color Matcher
Find the closest matching Tailwind CSS color palette class (Delta E) for any arbitrary HEX or RGB color code.
Apache .htaccess & Next.js Redirects Builder
Generate Apache .htaccess mod_rewrite and Next.js redirects configuration for 301 migrations, HTTPS, and IP bans.
Regex Log Highlighter & Grep Line Filter
Inspect server logs with multi-color regex highlights and instant Grep line filtering, running 100% client-side.
Voltage Drop & Wire Gauge Calculator (AWG / mm²)
Calculate voltage drop percentage, conductor resistance, and power loss for single/three-phase AC/DC lines and get recommended AWG wire size.
LED Series Resistor Calculator & Color Code Bands
Calculate ideal and standard E24 resistor values, power dissipation, and visualize 4-band/5-band resistor color codes for LED circuits.
Book ISBN-10 & ISBN-13 Check Digit Validator & Converter
Validate book ISBN check digits, detect typographical errors, and cross-convert between legacy ISBN-10 and modern ISBN-13.
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