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AI Prompt Generator

Create dynamic and reusable AI prompts with ease.

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LLM Token Counter

Count tokens for GPT-4, Claude, Gemini and more — 100% client-side.

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AI Prompt Engineering Hub

Prompt engineering techniques, generators, token counters, and LLM tools.

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Ls Command Builder

Visually build ls commands to list files with sorting, filtering, and formatting options.

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Find Command Builder

Visually build powerful Linux find commands without memorizing flags.

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Locate Command Builder

Instantly generate locate commands to find files using indexed search.

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Tar Command Builder

Build tar commands for creating, extracting, and managing archives with compression options.

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Grep Command Builder

Quickly build grep commands to search text patterns in files and logs.

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Cut Command Builder

Generate cut commands to extract fields and columns from delimited text and CSV files.

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Sort Command Builder

Build sort commands to order text files numerically, alphabetically, or by custom keys.

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Awk Command Builder

Construct awk commands for field processing, pattern matching, and text transformation.

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Sed Command Builder

Create sed commands for stream editing, regex substitution, and in-place file modification.

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Nmap Command Builder

Generate safe and effective nmap commands for network scanning and auditing.

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Curl Command Builder

Create curl commands for APIs, headers, authentication, and data transfer.

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SSH Command Builder

Build SSH commands for remote login, port forwarding, jump hosts, and tunneling.

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Ping Command Builder

Generate ping commands to test network reachability, latency, and packet loss.

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SS Command Builder

Inspect sockets and network connections with ss — the modern replacement for netstat.

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PS Command Builder

Build ps commands to snapshot running processes, filter by user, PID, CPU, and memory.

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REST API Client

Test and send HTTP requests directly from your browser. A fast, privacy-first API client supporting GET, POST, PUT, and DELETE methods.

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Design, edit, and validate OpenAPI 3.x specifications with real-time validation and beautiful docs preview. YAML/JSON support with live preview.

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Compare two OpenAPI 3.x specifications side by side. Detect added, removed, and changed endpoints, schemas, parameters, and responses — all browser-based.

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API Development Tools

REST client, OpenAPI editor, JWT tools, WebSocket tester, and URL utilities.

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Test and debug regular expressions instantly with live match highlighting and flag support.

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Common Regex Patterns

Browse 30+ common regular expression patterns for validation, extraction, and formatting.

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VS Code Snippet Generator

Create, preview, validate, and export VS Code snippets without writing JSON. Visual builder with placeholders, variables, collections, and one-click export.

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JSON to Code Generator

Convert JSON into clean, strongly-typed code in multiple programming languages. Generate models, classes, and structs instantly from JSON.

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XML to Code Generator

Convert XML into clean, strongly-typed code across multiple languages. Supports attributes, namespaces, and complex XML schemas.

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YAML to Code Generator

Convert YAML into clean, strongly-typed code for multiple languages. Supports nested schemas, anchors, and configuration files.

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Code Generation Hub

Generate code in TypeScript, Go, Python, Rust, and more from JSON, XML, or YAML data.

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JSON Pipeline Builder

Compose JSON tools into reusable pipelines with step-by-step execution.

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JSON Flatten / Unflatten

Flatten nested JSON or unflatten flat key-value pairs. Export to .env, Bash, Node.js, or Java Properties.

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Make your JSON sparkle with clean, readable formatting.

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Edit JSON with interactive tree view and Monaco code editor.

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Spot the difference — fast, clean, JSON

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Crush JSON size—minify for speed and performance.

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AutoCorrect Malformed JSON

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Transform your JSON into well-structured XML instantly.

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Switch your JSON to human-friendly YAML on the fly.

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Convert your JSON data into clean, spreadsheet-ready CSV instantly.

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Convert plain text strings into valid JSON instantly.

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JSON Schema GUI Builder

Visually build, edit, and manage JSON Schema with an intuitive GUI — no manual schema writing needed.

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Spot errors fast—verify your JSON with precision.

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Convert your JSON to clean, readable TOML config format instantly.

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Convert JSON objects to escaped string literals instantly.

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Convert JSON arrays to tab-separated values for spreadsheets and data processing.

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Sort JSON keys alphabetically — recursively organizes nested objects.

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JSON Escape / Unescape

Escape or unescape JSON special characters for safe embedding and processing.

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JSONPath Explorer

Query and explore JSON data using JSONPath expressions with real-time evaluation.

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Browse all 50+ JSON tools — formatters, converters, code generators, and utilities.

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JSON Schema to TypeScript

Learn how to convert JSON Schema to TypeScript interfaces with examples.

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JSON Schema to Zod

Convert JSON Schema to Zod validation schemas with examples.

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JSON to Pydantic

Convert JSON to Pydantic BaseModel classes for Python validation.

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Turn CSV rows into structured JSON objects instantly in your browser.

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Turn CSV rows into clean YAML instantly in your browser.

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Turn CSV rows into structured XML instantly in your browser.

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SchemaCode ER Diagram Generator

Generate and visualize ER diagrams from SQL schemas using SchemaCode.

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Mermaid Sequence Diagram Editor

Create and edit Mermaid sequence diagrams with live preview and SVG export.

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Connection String Builder

Generate, parse, and convert connection strings for 14+ databases. Output to URI, JDBC, Prisma, Docker Compose, and more.

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Edit XML with interactive tree view and CodeMirror code editor.

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Tidy up your tangled XML—clean and clear structure.

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Check your XML syntax for well-formedness and structural issues instantly.

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Strip whitespace and compress XML documents for smaller file sizes and faster transfers.

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Convert complex XML to friendly JSON in seconds.

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Make your XML speak YAML fluently.

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Convert structured XML data into spreadsheet-ready CSV instantly.

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Convert your XML to clean, readable TOML config format instantly.

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Edit YAML with interactive tree view and CodeMirror code editor.

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Polish your YAML for clarity and elegance.

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Convert readable YAML into structured JSON effortlessly.

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Unleash XML from your YAML data structures.

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Validate YAML like a pro—find and fix mistakes instantly.

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Trim down your YAML to its leanest form.

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Turn YAML documents into spreadsheet-ready CSV instantly in your browser.

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Convert your YAML to clean, readable TOML config format instantly.

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JSON to Java Properties

Convert JSON to Java .properties file format. Generate Spring Boot compatible config from JSON.

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Java Properties To JSON

Transform .properties files into structured JSON with nested objects and arrays.

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YAML To Java Properties

Convert YAML to Java .properties format with dotted keys and escaped values.

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Java Properties To YAML

Transform .properties files into clean, nested YAML structure.

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Convert JSON to Node.js process.env format. Generate .env files from nested JSON instantly.

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Convert YAML to .env format. Generate environment variable files from YAML config.

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Convert .env files into JSON format. Parse environment variable files into structured JSON.

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Convert .env files into clean, nested YAML structure. Underscore keys reconstructed into objects.

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Convert JSON to Bash export statements. Generate shell-sourced environment variables from JSON.

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Convert YAML to Bash export statements. Generate shell variables from YAML config.

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Bash Properties to JSON

Convert Bash properties (export statements) into JSON format. Parse shell variable exports to structured JSON.

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Bash Properties to YAML

Convert Bash export statements into clean, nested YAML structure.

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JSON to Python Dict

Convert JSON to Python dict literal format. Generate Python dict with True/False/None syntax from JSON.

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YAML to Python Dict

Convert YAML to Python dict literal format. Generate Python dict with True/False/None syntax from YAML.

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Python Dict to JSON

Convert Python dict literals to JSON. Parse True/False/None syntax back to standard JSON.

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Python Dict to YAML

Convert Python dict literals to YAML. Parse True/False/None syntax into structured YAML.

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JSON to INI (Python)

Convert JSON to INI config file format. Generate Python configparser-compatible .ini files from JSON.

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YAML to INI (Python)

Convert YAML to INI config format. Generate .ini config files from YAML with section headers.

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INI (Python) to JSON

Convert Python INI config files into JSON. Section headers become nested objects.

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INI (Python) to YAML

Convert INI config files into clean, structured YAML. Section headers become top-level keys.

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JSON to PHP Array

Convert JSON to PHP array config format. Generate return [...] PHP config files from JSON.

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YAML to PHP Array

Convert YAML to PHP array config format. Generate PHP return [...] config files from YAML.

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PHP Array to JSON

Convert PHP array config to JSON. Parse PHP return [...] syntax back to standard JSON.

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PHP Array to YAML

Convert PHP array config to YAML. Parse PHP return [...] syntax into structured YAML.

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JSON to PHP INI

Convert JSON to PHP INI config format. Generate php.ini-style config files from JSON.

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YAML to PHP INI

Convert YAML to PHP INI config format. Generate php.ini-style config from YAML.

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PHP INI to JSON

Convert PHP INI config to JSON. Parse php.ini-style [sections] into structured JSON.

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PHP INI to YAML

Convert PHP INI config to YAML. Parse php.ini-style files into structured YAML.

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Convert your TOML configuration to structured JSON effortlessly.

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Transform TOML data into human-friendly YAML on the fly.

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Convert TOML configuration into well-structured XML instantly.

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Base 64 Encoder

Lock it down—encode any text into base64.

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Base 64 Decoder

Unlock secrets—decode base64 to plain text.

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Base 64 Converter

Switch between base64 and other formats with ease.

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Base 64 to Image

Generate and download images from base64 text

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Image to Base 64

Convert images (PNG, JPEG, GIF, SVG, WebP) to Base64 strings and data URIs

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Timestamp Converter

Timestamp Converter: Effortlessly convert UNIX time to human-readable format and back.

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Cron Helper: Build, validate, and understand crontab expressions visually with live previews and next-run insights.

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Age Calculator: Quickly calculate your age in years, months, and days from your date of birth.

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Common Cron Expressions

Browse 30+ common cron schedule expressions with examples and explanations.

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JWT creation made simple — sign, encode, go

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Decode JWTs safely — fast, clean, and offline

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UUID v1 Generator

Generate UUID v1: time-based unique identifiers for distributed systems.

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UUID v3 Generator

Generate UUID v3: name-based UUIDs using MD5 hashing.

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UUID v4 Generator

Generate UUID v4: random UUIDs for general-purpose unique IDs.

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UUID v5 Generator

Generate UUID v5: name-based UUIDs using SHA-1 hashing.

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UUID v7 Generator

Generate UUID v7: time-ordered, sortable UUIDs ideal for databases.

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Generate GUIDs: Microsoft-style UUIDs compatible across platforms.

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Generate ULIDs: lexicographically sortable unique IDs for modern apps.

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Encode URLs to URL-safe format instantly.

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Decode URL-encoded strings back to plain text.

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JSON URL Encoder

Encode JSON objects to URL-safe strings.

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JSON URL Decoder

Decode URL-encoded strings back to JSON.

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XML URL Encoder

Encode XML to URL-safe strings.

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XML URL Decoder

Decode URL-encoded strings back to XML.

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YAML URL Encoder

Encode YAML to URL-safe strings.

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YAML URL Decoder

Decode URL-encoded strings back to YAML.

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Sort lines of text alphabetically or numerically.

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Remove Duplicates

Remove duplicate lines from text instantly.

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Count the number of words in your text.

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Character Counter

Count the number of characters in your text.

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Count the number of lines in your text.

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Duplicate Counter

Count duplicate lines in your text.

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Spaces to Newlines

Convert spaces to newlines or vice versa.

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Sort words in your text alphabetically.

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String Case Converter

Convert strings between camelCase, PascalCase, snake_case, kebab-case, and more.

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Format, beautify, and minify HTML code with customizable indentation.

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HTML Entity Encoder

Encode special characters to HTML entities instantly. Perfect for escaping HTML, XML, and XSS prevention.

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HTML Entity Decoder

Decode HTML entities back to readable text. Convert & < > and other entities to characters.

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JavaScript Minifier

Compress and minify JavaScript code by removing whitespace and comments.

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Format, beautify, and minify CSS code with customizable indentation.

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Compress and minify CSS code with compression statistics and byte savings.

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Validate CSS syntax with detailed error and warning reporting.

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SCSS to CSS Compiler

Compile nested SCSS syntax into flat, browser-ready CSS.

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CSS Specificity Calculator

Calculate CSS selector specificity with detailed (ID, Class, Element) breakdowns.

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CSS Diff Checker

Compare two CSS blocks side by side with highlighted differences.

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CSS Variable Explorer

Discover and analyze CSS custom properties with usage tracking.

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CSS Color Extractor

Extract all colors from CSS with HEX, RGB, and HSL conversion.

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CSS Selector Tester

Test and validate CSS selectors with specificity scoring.

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CSS Pretty Print

Pretty print and beautify CSS with customizable formatting options.

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LESS to CSS Converter

Compile LESS files into standard browser-ready CSS.

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CSS to SCSS Converter

Convert plain CSS into SCSS syntax with nesting.

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Stylus to CSS Converter

Compile Stylus files into standard browser-ready CSS.

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Stylus to SCSS Converter

Convert Stylus indented syntax into SCSS format.

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Stylus to LESS Converter

Convert Stylus indented syntax into LESS format.

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SASS to CSS Converter

Compile indented SASS syntax into flat browser-ready CSS.

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Format and beautify LESS code with customizable indentation.

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Format and beautify SCSS code with customizable indentation.

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Beautify and format SQL queries with keyword capitalization and indentation.

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Text Diff Checker

Compare two texts side by side and see differences highlighted instantly.

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Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes instantly.

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Password Generator

Create secure random passwords with customizable length, character types, and exclusions.

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Markdown Editor

Write markdown with live preview and HTML export. Split pane editor.

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Markdown to HTML

Convert markdown to HTML instantly. See clean HTML source code in real-time.

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Color Workbench

All-in-one color workbench. Convert between HEX, RGB, HSL, CMYK, LAB, XYZ, and more. Visual picker, palette generator, WCAG contrast checker, and developer codegen.

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MCP Config Generator

Build MCP server configurations visually — generate Model Context Protocol configs for AI tools.

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How to Parse JSON in JavaScript

Learn how to parse JSON in JavaScript using JSON.parse(). Step-by-step guide with syntax, examples, and error handling.

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How to Parse JSON in Python

Learn how to parse JSON in Python using json.loads() and json.load(). Step-by-step guide with examples and best practices.

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How to Convert CSV to JSON

Learn how to convert CSV data to JSON format using Python, JavaScript, and online tools. Step-by-step guide with examples.

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How to Fix CORS Errors

Learn how to fix CORS errors in your web applications. Understand CORS headers, preflight requests, and server-side configuration.

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How to Use cURL

Learn how to use cURL for API testing, HTTP requests, file transfers, and debugging. Complete guide with practical examples.

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How to Generate JWT in Node.js

Learn how to generate JWT tokens in Node.js using the jsonwebtoken library. Step-by-step guide with code examples and best practices.

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XML to Zod Schema Converter — Free Online TypeScript Zod Generator

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YAML to Zod Converter — Free Online Zod Schema Generator

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JSON Mock Data Generator

Generate realistic mock/fake JSON data from JSON Schema or template using Faker.js.

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CSV Mock Data Generator

Generate realistic CSV test data from a JSON Schema or template using Faker.js.

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Generate realistic XML test data from a JSON Schema or template using Faker.js.

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