Utility tools
92 tools tagged with “Utility”
Ascii Art Generator
Convert text and images into ASCII art with customizable character sets, adjustable output dimensions, multiple artistic styles (blocks, edges, detailed), color/grayscale options, perfect for terminal displays, signatures, and text-based graphics.
Developer Utilities · Code Generators
Ascii Chart
Display comprehensive ASCII character reference table showing all 128 standard ASCII characters (0-127) with decimal values, hexadecimal codes, octal representation, binary format, HTML entity names, character symbols, and control character descriptions.
Developer Utilities · Utilities
Ascii Table
Interactive extended ASCII table covering 256 characters (0-255) including standard ASCII, extended ASCII, and Unicode information with searchable character codes, HTML entities ( , ©), keyboard shortcuts, and usage examples for web development.
Developer Utilities · Utilities
Ascii To Hex
Convert ASCII text to hexadecimal representation (e.g., "Hello" → "48 65 6C 6C 6F") and vice versa with customizable delimiters (space, comma, colon, none), uppercase/lowercase options, and bulk conversion for encryption, debugging, and data analysis.
Developer Utilities · Utilities
Aspect Ratio Calculator
Calculate aspect ratios for images and displays, convert between different ratio formats (16:9, 4:3, 21:9), resize images maintaining aspect ratio, displays common aspect ratios (cinema, photo, web), and shows pixel dimensions for screen resolutions.
Developer Utilities · Utilities
Backlinks Checker
Analyze website backlink profile with domain authority scores, check link quality and relevance, detect toxic/spammy links, monitor referring domains and IP diversity, track anchor text distribution, compare competitor backlinks, and identify link building opportunities.
Developer Utilities · Code Validators
Barcode Scanner
Scan and decode barcodes from uploaded images or live camera input, supporting 20+ formats including EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Code 93, ITF, QR codes, Data Matrix, PDF417, Aztec, and Codabar with high accuracy.
Developer Utilities · Image Tools
Base64 Decoder
Decode Base64-encoded strings back to original text, binary data, or files with automatic format detection, MIME type identification, image preview, and direct file download for extracted content.
Developer Utilities · Encoders & Decoders
Base64 Encoder
Encode text, binary data, images, or files into Base64 ASCII string format for safe data transmission over text-based protocols, embedding images in HTML/CSS (data URIs), API authentication tokens, and email attachments.
Developer Utilities · Encoders & Decoders
Binary To Decimal
Convert binary numbers to decimal with support for standard binary notation (0b prefix or B suffix), shows step-by-step weighted value calculation, supports signed/unsigned integer representation, displays hexadecimal equivalent, and handles large binary numbers.
Developer Utilities · Utilities
Binary To Hexadecimal
Convert binary numbers to hexadecimal (base-16) format with automatic grouping (nibbles), shows decimal equivalent, supports various input formats (0b prefix, spaces, continuous), uppercase/lowercase hex output options, and detailed conversion steps.
Developer Utilities · Utilities
Binary To Text
Convert binary strings (sequences of 0s and 1s) to readable text using various character encodings (ASCII, UTF-8, UTF-16, ISO-8859-1) with automatic delimiter detection (spaces, 8-bit chunks), error handling for invalid binary, and format validation.
Developer Utilities · Utilities
Business Days Calculator
Calculate business days between two dates excluding weekends and customizable holidays, counts forward/backward, displays weekday breakdown, exports holiday lists, shows working hours calculations, and supports paid CSV schedule export for project timelines and deadline planning handoffs.
Developer Utilities · Utilities
Canonical URL Checker
Check canonical URL tags on web pages. Verify canonical URL implementation, detect canonical issues, check redirect relationships, and provide canonical URL analysis for SEO optimization and duplicate content prevention.
Developer Utilities · Converters
Case Converter
Convert text between 10+ case styles: lowercase, UPPERCASE, Title Case, Sentence case, camelCase, PascalCase, snake_case, SCREAMING_SNAKE_CASE, kebab-case, dot.case, with smart word boundary detection and acronym preservation for programming and writing.
Developer Utilities · Data Converters
Cidr Calculator
Plan IPv4 subnet allocations from a base CIDR block by defining named host requirements and reviewing network ranges, broadcast addresses, usable capacity, and allocation fit. The calculator runs locally in the browser for instant planning, includes JSON export and print tools on the free tier, and paid plans unlock backend-generated CSV export for spreadsheet and IPAM workflows.
Developer Utilities · Utilities
Color Contrast Checker
Check color contrast ratios between foreground and background colors for WCAG 2.1 accessibility compliance (Level AA: 4.5:1, Level AAA: 7:1), ensure text readability for users with vision impairments, test normal and large text, and suggest improved accessible color combinations.
Developer Utilities · Code Validators
Color Palette Generator
Generate cohesive color palettes using algorithms based on color theory (complementary, analogous, triadic, tetradic), customize base color and palette size, export in multiple formats (CSS, JSON, ASE), accessibility-aware suggestions, and save palettes to library.
Developer Utilities · Utilities
Color Picker
Interactive color picker with visual color wheel, RGB/HSL/HEX input fields, brightness/saturation sliders, opacity control, shade and tint generator (lighter/darker variations), complementary color suggestions, save custom color palettes, copy to clipboard, and recent colors history.
Developer Utilities · Utilities
Currency Converter
Convert between 170+ world currencies with real-time exchange rates from reliable financial APIs, historical rate data, cryptocurrency support (Bitcoin, Ethereum), rate change graphs, inverse calculations, and automatic updates every hour.
Developer Utilities · Data Converters
Decimal To Binary
Convert decimal numbers to binary representation with customizable bit length (8, 16, 32, 64-bit), shows two's complement for negative numbers, displays hexadecimal equivalent, supports floating-point decimals, and groups output for readability.
Developer Utilities · Utilities
Decimal To Fraction
Convert decimal numbers to fractions showing numerator and denominator, simplifies fractions to lowest terms, displays mixed numbers for improper fractions, shows step-by-step conversion process, reverses fractions to decimals, and calculates percentage equivalents.
Developer Utilities · Utilities
Decimal To Hexadecimal
Convert decimal (base-10) numbers to hexadecimal (base-16) format with 0x prefix option, supports positive/negative numbers, shows binary representation, batch conversion for multiple decimals, uppercase/lowercase hex output, and historical conversion steps.
Developer Utilities · Utilities
Dns Lookup
Query DNS records for domains including A (IPv4), AAAA (IPv6), MX (mail servers), TXT (SPF, DKIM, DMARC), CNAME (aliases), NS (name servers), SOA (zone authority), CAA (certificate authority), troubleshoot DNS issues, and verify DNS propagation globally.
Developer Utilities · Code Validators
Email Verifier
Validate email format with RFC-style rules, check DNS MX (and related mail-host) records, flag disposable domains and role-style addresses, surface catch-all risk and random-looking local parts, and run non-delivery mailbox checks where enabled. Free single-address verification; paid batch adds list runs with the same per-address detail on the page, filters (for example deliverable-only), and copy or download of filtered results (emails-only list, CSV, or readable report) plus a ZIP archive.
Developer Utilities · Code Validators
Environment Variable Manager
Manage and organize environment variables for different frameworks (Node.js, Python, Docker, etc.). Validate .env files, detect security issues, organize variables by environment, and generate formatted .env files with best practices.
Developer Utilities · Converters
Epoch Converter
Convert Unix timestamps (seconds since January 1, 1970) to human-readable dates and vice versa, supporting milliseconds precision, multiple timezone conversions (UTC, local, custom), relative time display ("2 hours ago"), and ISO 8601 formatting.
Developer Utilities · Data Converters
Extract Text From Image
Extract text from images using advanced OCR (Optical Character Recognition) technology powered by Tesseract, supporting 100+ languages, handwriting recognition, multi-column layouts, tables, mathematical equations, and output formats (plain text, searchable PDF, Word).
Developer Utilities · Image Tools
Favicon Generator
Create website favicons from uploaded images, text, or emojis with automatic multi-size generation (16x16, 32x32, 180x180), multiple format outputs (ICO, PNG, SVG), browser compatibility optimization, and manifest.json generation.
Developer Utilities · Code Generators
Find And Replace
Search and replace text with advanced options: regex pattern support for complex find/replace operations, case-sensitive/insensitive matching, whole word boundary matching, multi-line search, batch find/replace across large texts, preview before replace, and undo capability.
Developer Utilities · Text & Data Tools
Flow Chart Maker
Design professional flowcharts, process diagrams, and workflow visualizations with intuitive drag-and-drop interface, standard shapes (rectangles, diamonds, ovals), smart connectors, color customization, and export to PNG/SVG/PDF formats.
Developer Utilities · Code Generators
Git Diff Viewer
View and analyze Git diffs with syntax highlighting, side-by-side comparison, line-by-line changes, and statistics. Compare file versions, view commit diffs, and understand code changes with visual diff visualization.
Developer Utilities · Converters
Git Flow Helper
Visualize and manage Git Flow workflows. Generate Git Flow commands for feature, bugfix, hotfix, and release branches. Includes workflow visualization, command generation, and best practices for Git Flow branching strategy.
Developer Utilities · Converters
Guid Generator
Generate globally unique identifiers (GUIDs/UUIDs) in multiple RFC 4122 formats (Version 1 timestamp-based, Version 4 random, Version 5 name-based) with bulk generation, braces/hyphens options, and validation.
Developer Utilities · Code Generators
Hex To Ascii
Decode hexadecimal strings back to readable ASCII text, supporting various delimiters (space-separated, no delimiters, escaped notation), handles invalid hex gracefully, shows character-by-character mapping, and copies decoded text easily.
Developer Utilities · Utilities
Hex To Rgb
Convert hexadecimal color codes to RGB (Red, Green, Blue) values with support for standard hex (#RRGGBB), short hex (#RGB), and rgb/rgba formats, shows visual color preview, provides decimal and percentage values, and CSS-ready output.
Developer Utilities · Utilities
Hexadecimal To Binary
Convert hexadecimal numbers to binary (base-2) representation with visual padding for standard bit lengths (8, 16, 32, 64-bit), shows step-by-step conversion, supports uppercase/lowercase hex input, groups binary output for readability, and displays decimal equivalent.
Developer Utilities · Utilities
Hexadecimal To Decimal
Convert hexadecimal (base-16) numbers to decimal (base-10) with support for standard notation (0x prefix or 16H suffix), shows conversion formula, displays binary representation, supports signed/unsigned integers, and provides scientific notation for large numbers.
Developer Utilities · Utilities
HTML Color Names
Browse and search HTML color names (CSS named colors). Find color names, view hex codes, RGB values, preview colors, and get color information for web development. Includes all 147 standard HTML color names.
Developer Utilities · Converters
Html Decoder
Decode HTML entities back to their original characters, converting encoded symbols (like & to &, < to <, © to ©) for readable text extraction, data processing, and content analysis.
Developer Utilities · Encoders & Decoders
Html Encoder
Encode special characters and symbols into HTML entities (e.g., & → &, < → <, © → ©) to safely display reserved characters in HTML documents without breaking markup structure or causing XSS vulnerabilities.
Developer Utilities · Encoders & Decoders
HTML Entity Reference
Browse and search HTML entities and character references. Find HTML entities by name, character, or code. View entity codes, Unicode values, and usage examples. Includes all standard HTML entities for web development.
Developer Utilities · Converters
Http Status Codes
Reference guide for HTTP status codes with detailed descriptions and explanations, grouped by category (1xx Informational, 2xx Success, 3xx Redirection, 4xx Client Error, 5xx Server Error), shows common causes, solutions, and use cases for each code.
Developer Utilities · Utilities
Image Color Picker
Pick and extract colors from any point in uploaded images, get precise HEX/RGB/HSL/CMYK values, analyze dominant colors and color distribution, extract full color palettes (5-10 colors), generate color schemes, and save palettes for design projects.
Developer Utilities · Image Tools
Ip Address Lookup
Comprehensive IP address lookup showing geolocation data (country, city, latitude/longitude with map), ISP and organization information, ASN (Autonomous System Number), hostname, reverse DNS, timezone, threat intelligence (blacklist status), and abuse contact details.
Developer Utilities · Utilities
Ip Port Checker
Test specific IP address and port combinations for connectivity, check if services are accessible from your location, verify port accessibility through firewalls, diagnose network configuration problems, measure connection latency, and identify blocked ports.
Developer Utilities · Code Validators
Ipv4 To Ipv6
Convert IPv4 addresses to IPv6 format using various mapping methods (IPv4-mapped, IPv4-compatible, 6to4 addressing), shows binary representations, displays both formats side-by-side, supports CIDR notation for networks, and explains tunneling mechanisms.
Developer Utilities · Utilities
Italics Font Generator
Transform plain text into stylized italic Unicode characters (mathematical alphanumeric symbols) that display as italics across all platforms, social media, documents, and websites without requiring special fonts or formatting.
Developer Utilities · Code Generators
Json Compare
Compare two JSON documents for structural and data differences, detect added/removed/modified keys, nested object comparison, array element differences, show path to differences, merge functionality, and visual highlighting with side-by-side or unified views.
Developer Utilities · Text & Data Tools
Julian Date Converter
Convert between Gregorian calendar dates and Julian Day Numbers (JDN) used in astronomy and scientific calculations. Supports historical dates, provides JD and MJD (Modified Julian Date) formats, and includes detailed epoch information.
Developer Utilities · Data Converters
Jwt Decoder
Decode and validate JSON Web Tokens (JWT) without requiring private keys, displays header, payload, and signature sections separately, validates token expiration (exp), issue time (iat), not before (nbf) claims, checks algorithm, verifies HMAC signatures, and shows decoded payload structure.
Developer Utilities · Utilities
Length Converter
Convert length and distance between metric (millimeters, centimeters, meters, kilometers), imperial (inches, feet, yards, miles), and specialized units (nautical miles, light years, angstroms) with precision for engineering, construction, and science.
Developer Utilities · Data Converters
Link Checker
Scan websites for broken links (404 errors), validate HTTP status codes (200, 301, 302, 404, 500), check redirect chains and loops, test internal and external links, detect slow-loading resources, and generate comprehensive link health reports with fix suggestions.
Developer Utilities · Code Validators
Lower Case Converter
Convert all text to lowercase letters, transforming uppercase and mixed-case input to consistent lowercase output while preserving numbers, punctuation, special characters, spaces, and line breaks. Useful for data normalization and case-insensitive comparisons.
Developer Utilities · Data Converters
Mac Address Lookup
Look up MAC (Media Access Control) address vendor information, identify network interface card manufacturers from OUI (Organizationally Unique Identifier) database, validate MAC address formats (colon, hyphen, dot notation), and resolve IEEE registration data.
Developer Utilities · Code Validators
Metadata Viewer
View, analyze, and extract comprehensive EXIF/IPTC/XMP metadata from images including camera make/model, lens information, ISO/aperture/shutter speed settings, GPS coordinates with map display, timestamps, copyright information, editing software, and color profiles with metadata editing capability.
Developer Utilities · Image Tools
MIME Types List
Browse and search MIME types (Multipurpose Internet Mail Extensions) database. Find MIME types for file extensions, search by content type, view MIME type details, and get MIME type information for web development and file handling.
Developer Utilities · Converters
My Ip Address
Display your current public IP address (IPv4 and IPv6), geolocation (country, region, city, coordinates), Internet Service Provider (ISP) details, connection type (residential/datacenter), proxy/VPN detection, and anonymity status with privacy recommendations.
Developer Utilities · Utilities
Network Port Checker
Check if network ports are open, closed, or filtered on servers, test firewall rules and port forwarding, verify service availability on specific ports (HTTP:80, HTTPS:443, SSH:22, FTP:21), diagnose connectivity issues, and scan multiple ports simultaneously.
Developer Utilities · Code Validators
Pagespeed Insights
Analyze website performance and speed metrics including page load time, time to first contentful paint (FCP), largest contentful paint (LCP), cumulative layout shift (CLS), first input delay (FID), provides optimization suggestions, and generates detailed performance reports.
Developer Utilities · Utilities
Phone Validator
Validate phone numbers against international E.164 format, check country code validity (1-3 digits), verify national numbering plans, format numbers with proper spacing/hyphens/parentheses, detect invalid structures, and support 200+ countries with local format rules.
Developer Utilities · Code Validators
Ping Tool
Send ping requests to test host connectivity and measure round-trip latency (RTT), displays packet loss percentage, minimum/average/maximum latency, TTL (Time To Live) values, identifies unreachable hosts, and diagnoses network connectivity issues.
Developer Utilities · Utilities
Qr Code Scanner
Scan QR codes from uploaded images or live camera with real-time detection and decoding, supporting URLs, plain text, WiFi credentials (SSID/password), vCards (contact information), email addresses, phone numbers, calendar events, and cryptocurrency addresses.
Developer Utilities · Utilities
Random Address Generator
Generate realistic fake addresses including street numbers, street names, city, state/province, ZIP/postal codes, and country for testing forms, development environments, database population, and data anonymization while protecting privacy.
Developer Utilities · Code Generators
Random Color Generator
Generate random colors in multiple formats (HEX, RGB, RGBA, HSL, HSLA, CMYK) with shade and tint variations, complementary color suggestions, palette creation, accessibility contrast ratio checking, and CSS-ready output.
Developer Utilities · Code Generators
Rdns Check
Perform reverse DNS (rDNS) lookups to find hostname from IP address, validate PTR (Pointer) records, check mail server configuration, detect spoofing risks, verify DNS reverse zone delegation, troubleshoot email deliverability, and diagnose network DNS issues.
Developer Utilities · Utilities
Redirect Checker
Check HTTP redirects (301, 302, etc.) for URLs. Analyze redirect chains, detect redirect loops, verify redirect status codes, check redirect destinations, and provide redirect analysis for SEO and website maintenance.
Developer Utilities · Converters
Regex Tester
Test, debug, and optimize regular expressions in real-time with pattern matching visualization, capture group extraction, replace functionality, syntax highlighting, multi-line support, and multiple regex flavors (PCRE, JavaScript, Python).
Developer Utilities · Code Generators
Remove Duplicates
Remove duplicate lines, words, or entries from text with case-sensitive/insensitive options, preserve original order or sort, count duplicates, filter by frequency, ignore whitespace variations, regex pattern support, and line-by-line comparison for data deduplication.
Developer Utilities · Text & Data Tools
Rgb To Hex
Convert RGB (Red, Green, Blue) color values to hexadecimal format with support for RGB and RGBA (with alpha channel), shows both 6-digit and 3-digit hex formats, provides color preview, batch conversion capability, and reverse conversion to RGB.
Developer Utilities · Utilities
Roman Numeral Converter
Convert between Arabic numerals (1, 2, 3...) and Roman numerals (I, II, III, IV...) with support for standard and extended notation, large numbers (vinculum notation), additive and subtractive principles, and detailed conversion explanations.
Developer Utilities · Data Converters
SEO Analyzer
Analyze website SEO and provide optimization recommendations. Check meta tags, headings, content structure, internal/external links, page speed, mobile-friendliness, and provide actionable SEO improvements with detailed reports.
Developer Utilities · Converters
Speed Converter
Convert speed and velocity between mph (miles per hour), km/h (kilometers per hour), m/s (meters per second), knots, fps (feet per second), and Mach numbers using accurate conversion formulas for vehicles, aviation, and physics calculations.
Developer Utilities · Data Converters
Sql Query Formatter
Advanced SQL query formatting with syntax validation, performance optimization suggestions, join visualization, subquery formatting, CTE (Common Table Expression) alignment, and formatted output tailored to specific database systems with dialect-aware keywords.
Developer Utilities · Code Formatters
Ssl Checker
Verify SSL/TLS certificate validity and security, check expiration dates and renewal requirements, validate certificate chain and issuer trust, test supported cipher suites and protocols (TLS 1.2, 1.3), check for mixed content issues, and ensure HTTPS best practices.
Developer Utilities · Code Validators
Swagger Editor
Edit and validate OpenAPI/Swagger specifications with real-time validation, visual API documentation generation, try-out API requests directly from editor, syntax highlighting, auto-completion, split preview, and export to HTML/PDF documentation formats.
Developer Utilities · Utilities
Temperature Converter
Convert temperatures between Celsius (°C), Fahrenheit (°F), and Kelvin (K) scales with precise calculations, formula display, scientific notation support, absolute zero limits, and bulk conversion for meteorology, cooking, and scientific applications.
Developer Utilities · Data Converters
Text Compare
Compare two text documents side-by-side with visual highlighting of differences, line-by-line comparison, word-level differences, character-level precision, ignore whitespace/case options, merge conflicts, unified/split view, and detailed statistics on additions/deletions/modifications.
Developer Utilities · Text & Data Tools
Timestamp Converter
Convert between human-readable dates and various timestamp formats (Unix/Epoch, milliseconds, seconds), supports multiple timezones (UTC, local, custom), displays relative time ("2 hours ago"), and shows ISO 8601 formatted dates.
Developer Utilities · Data Converters
Unicode Character Table
Browse and search Unicode characters, view character codes, names, categories, and properties. Find Unicode characters by name, code point, category, or search. Includes emoji, symbols, and all Unicode blocks with detailed character information.
Developer Utilities · Converters
Unit Converter
Convert between 500+ measurement units across 20+ categories: length, weight, volume, area, speed, temperature, time, energy, power, pressure, data storage, angles, and more. Features real-time conversion, formula display, and precision control.
Developer Utilities · Data Converters
Unix Timestamp Converter
Convert Unix/POSIX timestamps to formatted dates and times, supports seconds and milliseconds precision, forward/backward conversion, batch timestamp processing, timezone-aware conversion, and historical date support for computing applications.
Developer Utilities · Data Converters
Upper Case Converter
Convert all text to UPPERCASE letters, transforming lowercase and mixed-case input to consistent uppercase output while maintaining numbers, punctuation, special characters, spaces, and formatting. Ideal for headers, emphasis, and standardized data formats.
Developer Utilities · Data Converters
Url Decoder
Decode percent-encoded URLs back to human-readable format, converting URL-safe escape sequences (%20 to space, %3A to :, %2F to /) for URL analysis, debugging, and data extraction from web requests.
Developer Utilities · Encoders & Decoders
Url Encoder
Encode URLs and query string parameters by converting spaces, special characters, and non-ASCII symbols to percent-encoded format (%20, %3A, %2F) ensuring safe transmission in HTTP requests and preventing URL parsing errors.
Developer Utilities · Encoders & Decoders
Utc Converter
Convert times between UTC (Coordinated Universal Time) and local timezones worldwide, shows timezone offsets and abbreviations, daylight saving time adjustments, military time zones, and real-time synchronized global time display.
Developer Utilities · Data Converters
Uuid Generator
Create universally unique identifiers (UUIDs) compliant with RFC 4122 standards supporting all versions (v1, v3, v4, v5) with timestamp generation, random generation, or name-based hashing with customizable namespaces.
Developer Utilities · Code Generators
Version Bump Tool
Bump version numbers in project files (package.json, pom.xml, build.gradle, etc.). Update version numbers following semantic versioning, update multiple files simultaneously, and generate version change summaries.
Developer Utilities · Converters
Web Vitals Checker
Check Core Web Vitals metrics (LCP, FID, CLS) for websites. Analyze page performance, measure loading speed, interactivity, and visual stability. Provides recommendations for improving web vitals scores and user experience.
Developer Utilities · Converters
Website Seo Checker
Comprehensive SEO analysis checking meta tags (title, description, keywords), heading hierarchy (H1-H6), keyword density, mobile responsiveness, page speed, image alt attributes, canonical tags, Open Graph tags, structured data, and actionable optimization recommendations.
Developer Utilities · Code Validators
Weight Converter
Convert weight and mass between metric (grams, kilograms, tonnes), imperial (ounces, pounds, tons), and other units (stones, carats, grains) with high precision calculations, batch conversion, and applications for shipping, fitness, and science.
Developer Utilities · Data Converters
Whois Lookup
Query WHOIS database for comprehensive domain registration information including registrar name, registration/expiration dates, name servers (NS records), registrant contact details (if not privacy-protected), domain status, and historical ownership data.
Developer Utilities · Code Validators