CodeUtils
    100% Client-Side Processing
    ★★★★★4.9/5 Rating

    Convert, Format & Transform
    Your Files Instantly

    55+ free online tools. No uploads to servers.Secure, private, and instant execution in your browser.

    Converters

    JSON to CSV Converter

    Convert JSON data to CSV format. Supports nested objects and arrays with customizable delimiters.

    JSON→CSV
    Converters

    CSV to JSON Converter

    Transform CSV data into JSON format. Auto-detects delimiters and handles quoted fields.

    CSV→JSON
    Converters

    Markdown to HTML

    Convert Markdown to clean HTML. Supports GitHub Flavored Markdown with syntax highlighting.

    Markdown→HTML
    Converters

    Image to Base64

    Convert images to Base64 encoded strings. Perfect for embedding images in CSS or HTML.

    Image→Base64
    Converters

    YAML to JSON

    Convert YAML configuration files to JSON format with proper indentation.

    YAML→JSON
    Converters

    JSON to YAML

    Transform JSON data to YAML format. Great for config files and DevOps workflows.

    JSON→YAML
    Formatters

    JSON Formatter & Validator

    Format, validate, and beautify JSON with syntax highlighting. Detects and explains errors.

    JSON→Formatted JSON
    Formatters

    SQL Formatter

    Beautify SQL queries with proper indentation. Supports MySQL, PostgreSQL, and more.

    SQL→Formatted SQL
    Formatters

    HTML Beautifier

    Format and indent HTML code. Fixes messy markup and improves readability.

    HTML→Formatted HTML
    Formatters

    CSS Minifier

    Minify CSS to reduce file size. Removes whitespace and optimizes selectors.

    CSS→Minified CSS
    Formatters

    JavaScript Minifier

    Compress JavaScript code to reduce bundle size and improve load times.

    JavaScript→Minified JS
    GeneratorsNEW

    Mock API Generator

    Create instant mock API endpoints from JSON. Test frontend without backend. Supports latency & error simulation.

    JSON→API Endpoint
    Generators

    UUID Generator

    Generate random UUIDs (v4) or time-based UUIDs (v1). Copy multiple at once.

    Click→UUID
    Generators

    Password Generator

    Create secure random passwords with customizable length, symbols, and patterns.

    Options→Password
    Generators

    Lorem Ipsum Generator

    Generate placeholder text in paragraphs, sentences, or words. Multiple styles available.

    Options→Text
    Generators

    Hash Generator

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

    Text/File→Hash
    Generators

    Color Palette Generator

    Generate harmonious color palettes from a base color. Export as CSS, SCSS, or JSON.

    Color→Palette
    Encoders

    Base64 Encoder/Decoder

    Encode text or files to Base64, or decode Base64 strings back to original content.

    Text/File→Base64
    Encoders

    URL Encoder/Decoder

    Encode special characters for URLs or decode percent-encoded strings.

    Text→Encoded URL
    Encoders

    JWT Decoder

    Decode and inspect JSON Web Tokens. View header, payload, and verify signatures.

    JWT→Decoded JSON
    Encoders

    Unix Timestamp Converter

    Convert between Unix timestamps and human-readable dates. Supports milliseconds.

    Timestamp/Date→Date/Timestamp
    Encoders

    Regex Tester

    Test regular expressions with real-time matching. Explains patterns and captures groups.

    Pattern + Text→Matches
    Encoders

    Text Diff Checker

    Compare two texts and highlight differences. Supports side-by-side and inline views.

    Two Texts→Diff View
    Converters

    HTML to Markdown

    Convert HTML content back to clean Markdown format. Great for documentation.

    HTML→Markdown
    Converters

    Base64 to Image

    Convert Base64 encoded strings back to images. Preview and download.

    Base64→Image
    Converters

    HEX to RGB Converter

    Convert HEX color codes to RGB values for CSS and design work.

    HEX Color→RGB
    Converters

    RGB to HEX Converter

    Convert RGB color values to HEX codes for web development.

    RGB→HEX Color
    Formatters

    Uppercase Converter

    Convert text to UPPERCASE. Perfect for headings and emphasis.

    Text→UPPERCASE
    Formatters

    Lowercase Converter

    Convert text to lowercase. Clean up text formatting.

    Text→lowercase
    Formatters

    Title Case Converter

    Convert text to Title Case. Capitalize the first letter of each word.

    Text→Title Case
    Encoders

    Base64 Decoder

    Decode Base64 strings back to original text content.

    Base64→Text
    Encoders

    URL Decoder

    Decode percent-encoded URL strings back to readable text.

    Encoded URL→Text
    Encoders

    HTML Entity Encoder

    Convert special characters to HTML entities for safe display.

    Text→HTML Entities
    Encoders

    HTML Entity Decoder

    Convert HTML entities back to readable characters.

    HTML Entities→Text
    Converters

    React Props to TypeScript

    Convert React PropTypes to TypeScript interfaces. Perfect for migrations to TypeScript.

    React Component→TypeScript Interface
    Formatters

    Tailwind CSS Class Sorter

    Sort Tailwind CSS classes in recommended order. Keep your codebase consistent and clean.

    Tailwind Classes→Sorted Classes
    Generators

    CRON Expression Generator

    Build CRON expressions from natural language. 'Every Friday at 5pm' → CRON syntax.

    Natural Language→CRON Expression
    Converters

    JSON to TypeScript

    Convert JSON to TypeScript interfaces. Auto-generates nested types and arrays.

    JSON→TypeScript
    Converters

    JSON to Zod Schema

    Generate Zod validation schemas from JSON. Perfect for form validation.

    JSON→Zod Schema
    Generators

    QR Code Generator

    Generate QR codes from text or URLs. Download as PNG or embed in HTML.

    Text/URL→QR Code
    Generators

    URL Slug Generator

    Convert titles to URL-friendly slugs. Supports kebab-case and snake_case.

    Text→URL Slug
    Converters

    CSS to JS Object

    Convert CSS to JavaScript objects for React inline styles. Auto camelCase.

    CSS→JS Object
    Generators

    .gitignore Generator

    Generate .gitignore for Node, React, Next.js, Python, Java, and more.

    Project Type→.gitignore
    Generators

    Markdown Table Generator

    Generate Markdown tables from CSV or JSON data. Copy-paste ready.

    CSV/JSON→Markdown Table
    Generators

    package.json Generator

    Generate package.json for Next.js, React, Express, Node.js. TypeScript ready.

    Project Type→package.json
    Generators

    Nginx Config Generator

    Generate validated nginx.conf blocks with SSL, gzip, rate limiting, and reverse proxy. Visual config builder for web servers.

    Configuration→nginx.conf
    Generators

    GitHub Actions Generator

    Build CI/CD pipelines visually. Generate GitHub Actions workflow YAML for testing, building, and deploying to Vercel, AWS, or Netlify.

    Workflow Config→GitHub Actions YAML
    Generators

    Kubernetes Manifest Generator

    Generate K8s Deployment, Service, and Ingress YAML manifests. Easy container deployment without deep Kubernetes knowledge.

    Container Config→K8s YAML
    ConvertersNEW

    Jira to Linear/Notion Converter

    Convert Jira CSV exports to Linear or Notion format. Preserves status, priority, labels, and story points.

    Jira CSV→Linear/Notion CSV
    ConvertersNEW

    Postman to OpenAPI Converter

    Convert Postman Collection v2.1 to OpenAPI 3.0 YAML. Generate API documentation instantly.

    Postman JSON→OpenAPI YAML
    ConvertersNEW

    WordPress to Headless CMS

    Convert WordPress XML exports to Contentful, Strapi, or Markdown. Removes shortcodes, cleans content.

    WordPress XML→JSON/Markdown
    GeneratorsNEW

    Mock Data Generator

    Generate realistic mock data for testing and development. Create users, products, companies with realistic data.

    Type + Count→JSON Data
    GeneratorsNEW

    Bigtable Reverse Timestamp

    Generate reverse timestamps for Google Cloud Bigtable row keys. Long.MAX_VALUE - timestamp for descending order.

    Timestamp/Date→Reverse Timestamp
    GeneratorsNEW

    Pomodoro Timer

    Productivity timer with customizable work and break intervals. Plan focused work sessions effectively.

    Session Config→Schedule
    GeneratorsNEW

    Chmod Calculator

    Visual interface to set Unix file permissions. Click checkboxes to generate octal (755) or symbolic (rwxr-xr-x) notation.

    Checkboxes→Permissions
    FormattersNEW

    SVG Optimizer

    Optimize SVG files by removing metadata, comments, and unnecessary attributes. Reduce file size without quality loss.

    SVG Code→Optimized SVG
    ConvertersNEW

    Curl to Code Converter

    Convert curl commands to Python, Node.js, Go, PHP, Ruby, Java, or C#. Paste curl from DevTools, get runnable code.

    curl Command→Code
    ConvertersNEW

    Stream Response Visualizer

    Visualize and convert streaming responses from AI APIs. Parse SSE, NDJSON, OpenAI, and Anthropic formats. Replay streams.

    Streaming Response→Parsed Chunks
    ConvertersNEW

    JSON Diff Tool

    Compare two JSON objects semantically. Ignores key order, highlights nested changes in an expandable tree view.

    Two JSON→Diff Tree
    ConvertersNEW

    Code Diff Tool

    Compare code with syntax highlighting. Supports JavaScript, Python, TypeScript, Go, Rust, and 20+ programming languages.

    Two Code Files→Diff View
    GeneratorsNEW

    Code Share

    Share code snippets instantly via URL. Supports 20+ languages. No account needed - just paste, share, and collaborate.

    Code→Shareable URL