Developer Tools Tools
Web development and programming tools
Password Generator
Generate strong random passwords instantly. Customize length and character types freely.
JSON Formatter & Validator
Format and validate JSON data for readability. Supports indent adjustment and single-line compression (minify).
UUID/GUID Generator
Generate UUID v4 with one click. Bulk generate up to 100 UUIDs with uppercase and hyphen options.
URL Slug Generator
Generate SEO-friendly URL slugs from text. Automatically removes special characters and handles transliteration.
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates. Also get the current timestamp instantly.
QR Code Scanner
Read and decode QR codes from uploaded images. URLs are displayed as clickable links, and text can be copied with one click.
Barcode Generator
Generate barcodes in Code128, EAN-13, Code39, and other formats. Adjust bar width and height, and export as PNG or SVG.
Regex Tester
Test regular expression patterns with real-time match results. Supports capture groups and g/i/m flag options.
Markdown to HTML Converter
Convert Markdown text to HTML code. Supports GFM tables, checklists, and code blocks.
HTML to Markdown Converter
Convert HTML code to Markdown format. Preserves table and list structures while automatically removing unnecessary tags.
HTML Formatter
Automatically format and indent HTML code for readability. Switch between 2/4 spaces and tabs, or minify to a single line.
CSS Formatter
Automatically format and indent CSS code for readability. Supports per-property line breaks and single-line minification.
JavaScript Formatter
Automatically format JavaScript code for readability. Supports ES6+ syntax and can switch to minified output.
SQL Formatter
Automatically format SQL queries with proper indentation and keyword alignment. Supports MySQL, PostgreSQL, SQLite syntax and subqueries.
XML Formatter
Format XML code with proper indentation for readability. Includes syntax validation and minification.
CSS Minifier
Remove whitespace, line breaks, and comments from CSS to reduce file size. View before/after size comparison with 20–50% typical reduction.
HTML Minifier
Remove unnecessary whitespace, line breaks, and comments from HTML. Preserves whitespace in pre tags and attribute quotes.
JavaScript Minifier
Remove whitespace and comments from JavaScript to reduce file size. Preserves variable names, strings, and regular expressions.
JSON to CSV Converter
Convert JSON data to CSV table format. Supports delimiter selection and .csv file download.
CSV to JSON Converter
Convert CSV data to JSON object arrays. Auto-detect delimiters and use header rows as key names.
JSON to XML Converter
Convert JSON data to XML tag structure. Supports root element naming and indented output formatting.
JSON to YAML Converter
Convert JSON data to YAML format. Accurately converts nested structures with configurable indent width.
YAML to JSON Converter
Convert YAML data to JSON format. Includes syntax error detection and customizable JSON indentation.
JSON Tree Viewer
Browse JSON data in an expandable/collapsible tree structure. Color-coded value types and JSONPath display for selected nodes.
CSV Viewer
View CSV files in a readable table format. Sort by columns, search data, and support multiple delimiters.
Markdown Editor
Markdown editor with real-time preview. Supports GFM syntax, code syntax highlighting, and HTML output.
Cron Expression Generator
Build cron expressions using an intuitive GUI. View human-readable descriptions and preview upcoming execution times.
JWT Decoder
Paste a JWT token to decode its header and payload. Displays expiration date/time and color-coded token structure.
Naming Convention Converter
Convert between programming naming conventions. Supports camelCase, snake_case, kebab-case, and more.
PX to REM Converter
Convert between CSS px and rem values. Customize the base font size for accurate conversions.
Chmod Calculator
Convert between numeric and symbolic Unix file permissions. Generate chmod commands for quick permission setup.
.htpasswd Generator
Generate .htpasswd entries for Apache Basic Authentication. Supports MD5, SHA1, and bcrypt encryption algorithms.
Code to Image Converter
Export source code as beautiful images. Supports syntax highlighting and theme customization.
HTML Live Preview
Preview HTML, CSS, and JavaScript in real time. Perfect for testing code snippets and verifying behavior.
Math Formula Editor
Create math formulas using LaTeX notation and export as images or code. Perfect for reports, slides, and academic papers.
OG Meta Preview
Preview how your OGP meta tags will appear when shared on social media. Check how your page looks on Twitter and Facebook before publishing.
CSS Specificity Calculator
Calculate and compare CSS selector specificity scores. Understand style priority to improve your CSS architecture.
Dummy Data Generator
Generate bulk dummy data for testing purposes. Supports names, addresses, emails, and more.
UTM Link Builder
Build URLs with UTM parameters using a simple form. Essential for Google Analytics campaign tracking.
Image Placeholder Generator
Generate placeholder images with custom size, color, and text. Perfect for web design mockups and prototyping.
Random String Generator
Generate random strings with custom length and character types. Useful for creating passwords and API keys.
Flowchart Maker
Create and export flowcharts for workflows and processes. Build diagrams intuitively with drag-and-drop and auto-layout.
Mind Map Maker
Create mind maps to organize ideas and information radially. Quickly expand and edit branches using keyboard shortcuts.
Sequence Diagram Maker
Create sequence diagrams showing interactions between objects over time. Define messages using text notation or GUI controls.
Organization Chart Maker
Create and export organizational structure charts in tree format. Supports job title display and design template selection.
Family Tree Maker
Visualize your family lineage in a tree format. Supports automatic generation placement and marriage relationships.
Chart Generator
Generate bar charts, line charts, pie charts, and more from your data. Supports CSV and Excel paste for quick chart creation.
Heatmap Generator
Visualize data values as color intensity in a heatmap. Supports CSV input and custom color scale configuration.
Sankey Diagram Maker
Create Sankey diagrams that show flow quantities as proportional band widths. Supports multi-stage flows and interactive visualization.
Treemap Generator
Generate treemaps that represent hierarchical data as proportional rectangles. Visualize budget breakdowns, storage usage, and more.
Radar Chart Generator
Visualize multiple metrics on a radar (spider) chart. Overlay multiple datasets for comparison and analysis.
JavaScript Obfuscator
Obfuscate JavaScript code to protect your source code. Choose from variable renaming, string encryption, and other techniques.
SCSS to CSS Converter
Compile SCSS code into standard CSS. See nesting and variable expansion in real-time.
TypeScript Formatter
Auto-format TypeScript code with consistent indentation and spacing. Prettier-based formatting that handles type annotations and generics correctly.
GraphQL Formatter
Auto-format GraphQL queries and schemas. Includes syntax error detection and customizable indent settings.
YAML Formatter
Auto-format and validate YAML files. Supports multi-document YAML and JSON conversion.
TSV to CSV Converter
Convert between TSV (tab-separated) and CSV (comma-separated) formats. Works seamlessly with copy-paste from Excel.
XML to JSON Converter
Convert XML data to JSON format. Supports flexible attribute handling and auto-detection of repeated elements as arrays.
TOML to JSON Converter
Convert between TOML and JSON formats bidirectionally. Fully supports TOML v1.0 spec including datetime types and inline tables.
Code Syntax Highlighter
Add syntax highlighting to source code and export as HTML. Choose from 100+ languages and popular color themes.
JSONPath Parser
Extract values from JSON data using JSONPath queries. Supports wildcards and filter expressions with real-time evaluation.
XPath Parser
Extract elements from XML or HTML using XPath expressions. Supports matched element highlighting and real-time evaluation.
User-Agent Parser
Parse User-Agent strings to identify browser, OS, and device information. Also detects bots and crawlers automatically.
URL Parser
Break down URLs into protocol, host, path, parameters, and more. Supports query parameter decoding and table display.
MIME Types Reference
Search and look up file extensions and their corresponding MIME types. Includes over 800 types with one-click copy.
Image to PDF Converter
Convert image files to PDF format. Supports combining multiple images and customizing page size settings.
PDF Merger
Merge multiple PDF files into one document. Drag and drop to freely reorder files before combining.
PDF Splitter
Split PDF files by page or custom page ranges. Preview thumbnails to decide exactly where to split.
PDF Compressor
Reduce PDF file size with image optimization. Achieve significant size reduction while maintaining quality.
PDF Page Reorder
Rearrange PDF pages freely by dragging and dropping. Also supports deleting pages and one-click reverse order.
Markdown Table Generator
Create and edit Markdown tables with a visual GUI editor. Supports CSV/TSV paste and column alignment settings.
JSON / CSV Validator
Validate JSON and CSV data syntax and pinpoint errors. Also supports structural validation with JSON Schema.
IP Address Checker
Check your public IP address instantly with one click. Displays both IPv4 and IPv6 with copy functionality.