Utilities

ASCII Table Reference

View full ASCII table (0-127) with binary, hex, and character columns

BIC/SWIFT Lookup

Lookup BIC/SWIFT codes with bank name and location details

Business Days Calculator

Count business days between two dates with weekend and custom holiday exclusions, or add/subtract business days from a date

Certificate Format Converter

Convert certificates between PEM, DER, and PFX formats with automatic format detection, certificate detail extraction (subject, issuer, validity, fingerprint), SHA-256 fingerprint computation, and download support

Changelog Generator

Generate CHANGELOG.md from git log with conventional commit parsing

Check String Length

Count characters, words, and validate length

CHMOD Calculator

Calculate Unix file permissions

CIDR Calculator

Calculate subnets with binary visualization, CIDR-to-range, range-to-CIDR, and subnet breakdown table

Code Comment Remover

Remove comments from source code (JS, PHP, Python, Java, Go, Ruby, C++)

Code Minifier

Minify HTML, CSS, JS, PHP, Python, SQL

Code to Image Generator

Turn code snippets into beautiful shareable images with syntax highlighting, multiple themes, languages, and customizable backgrounds — carbon.now.sh style

Color Palette Extractor

Extract color palette from images

Color Picker & Harmonies

Full color picker with hex/RGB/HSL inputs, complementary/analogous/triadic/tetradic color harmonies, color name detection, and palette export to CSS/SCSS/Tailwind/JSON

Combination & Permutation Calculator

Calculate nCr and nPr with formula steps and large number support

Comment Remover

Strip comments from source code

Conventional Commit Generator

Generate conventional commit messages by selecting type (feat, fix, chore, docs, refactor, test, style), scope, description, body, breaking changes, and footers

Countdown Timer

Create a live countdown to any target date and time with days/hours/minutes/seconds display, progress bar, pause/resume, and event name

Credit Card Validator

Validate credit card numbers with Luhn algorithm and issuer detection

Cron Expression Generator

Visual cron builder with presets and next-run preview

Cron Expression Parser

Parse and explain cron expressions

Cron Job Command Generator

Build cron command lines with schedule

CSS Minifier

Minify CSS code

CSV to Markdown Table

Convert CSV data to formatted markdown tables

Database URL Connection String Generator

Generate database connection strings for MySQL, PostgreSQL, SQLite, MongoDB, Redis, MariaDB, MSSQL in multiple formats

Date Calculator

Add or subtract days, weeks, months, and years from any date, or calculate the exact difference between two dates with detailed breakdown

Disposable Email Checker

Check if an email address belongs to a known disposable/temporary email provider using an embedded client-side database of 2000+ disposable domains

DNS Lookup

Lookup DNS A, AAAA, CNAME, MX, NS, TXT, SOA, SRV, CAA records via DNS-over-HTTPS with response time and TTL

DNS Propagation Checker

Check DNS record propagation across 10+ global DNS resolvers via DoH for A, AAAA, CNAME, MX, NS, TXT, and SOA records with propagation status

Dockerfile Generator

Generate Dockerfile and docker-compose.yml from preset templates with custom base image, ports, volumes, env vars

Dockerfile Layer Analyzer

Paste Dockerfile to analyze layer count, base image size, dependency footprint, cache invalidation risks, and get optimization suggestions including multi-stage builds and Alpine Linux

.dockerignore Generator

Generate .dockerignore files with optimized exclusion patterns for Node, Python, PHP, Go, Rust, Java, .NET, React, Vue, Next.js, Ruby, Django, Flutter, and more

Duplicate Line Remover

Remove duplicate lines from text with case-sensitive, preserve order, trim whitespace, and show count options

Email Validator

Validate email format per RFC 5321/5322 with syntax breakdown, TLD verification against IANA list, disposable domain detection, common typo suggestions (gmial→gmail), and detailed component analysis

Emoji Picker & Search Reference

Browse, search, and copy 300+ emojis by category with click-to-copy, search filter, and HTML entity codes

Empty Line Remover

Remove blank lines from text/code

Epoch Unix Timestamp Converter

Convert between timestamps and dates

ESLint Config Generator

Generate ESLint flat or legacy config files with preset selection (airbnb, standard, prettier, google), TypeScript/React/Vue support, and customizable rules

Factorial Calculator

Calculate factorial of any integer with step-by-step, permutations (nPr) and combinations (nCr)

Favicon Generator

Generate favicons from images

Fibonacci Generator

Generate Fibonacci sequence up to N terms with golden ratio display and sum

File Extension Lookup

Lookup file extension details — full format name, MIME type, associated programs, and category for 100+ file extensions

File Magic Bytes Reference

Browse 120+ file signatures (magic bytes) to identify file types from their hex headers, with search and category filter

GCD & LCM Calculator

Calculate GCD and LCM of two or more numbers using Euclidean algorithm with step-by-step

Git Cheat Sheet & Command Generator

Browse, search, and copy 70+ Git commands by category — setup, basic, branch, stash, remote, undo, tag, and advanced

Git Log Formatter

Format git log output with graph and customizable display

GitHub Actions Workflow Generator

Generate GitHub Actions CI/CD workflow YAML files for Node.js, Python, PHP, Go, Rust, and Docker with configurable triggers, OS, versions, and stages (lint, test, build, deploy)

GitHub Issue Template Generator

Generate GitHub issue templates (bug report, feature request, custom) with YAML frontmatter, markdown body, and textarea form elements

.gitignore Generator

Generate .gitignore files by selecting project type (Node, Python, Laravel, React, Vue, Go, Rust, etc.)

GitLab CI/CD Generator

Generate .gitlab-ci.yml configuration with stages, jobs, caching, artifacts, and environment deployment for Node.js, Python, PHP, Go, Rust, and Docker

HTML Entity Lookup

Search HTML entities by name, character, or code with preview

HTML Minifier

Minify HTML code

HTML to PDF Converter

Convert HTML markup to downloadable PDF with page size (A4, Letter, Legal, A3, A5), orientation, and margins. Client-side with browser print fallback

IBAN Validator

Validate International Bank Account Numbers with checksum verification

Image Background Remover

Remove image backgrounds using AI + manual tools

Image Converter

Convert between image formats

Image Cropper

Crop images interactively

Image Merger

Merge multiple images into one

Image Metadata Extractor

View and strip EXIF metadata from images

Image Optimization Analyzer

Upload images to analyze optimization potential — format recommendations (JPEG/PNG/WebP/AVIF), compression savings estimates, dimension resize suggestions, and side-by-side quality comparison

Image Optimizer

Optimize image file size

Image Resizer

Resize images to custom dimensions

Image to PDF

Convert images to PDF document

Image Watermark

Add watermark to images

IP Geolocation Lookup

Lookup IP address location details — country, city, ISP, ASN, coordinates, timezone, proxy detection

IP to Binary Converter

Convert IPv4 addresses to dotted binary, hex, and 32-bit integer — and back.

IPv4 Subnet Calculator

Detailed IPv4 subnet analysis — IP class, public/private/loopback detection, mask in decimal/binary/hex/wildcard, subnet planning

IPv4 to IPv6 Converter

Convert IPv4 addresses to IPv6 mapped (::ffff:x.x.x.x) and compatible (::x.x.x.x) notation, and extract embedded IPv4 addresses from IPv6 addresses. All computation is client-side

IPv6 Calculator

Calculate IPv6 network addresses, expand/compress, prefix, scope, subnets, and binary

ISBN Validator

Validate ISBN-10 and ISBN-13 book identifiers with checksum verification and format conversion

JS Minifier

Minify JavaScript code

JSON Minifier

Minify/beautify JSON data

JSON to CSV (Nested)

Convert nested JSON to flat CSV with dot-notation keys

JSON to Table Converter

Convert JSON array to sortable, searchable HTML table

JWT Decoder & Validator

Decode and validate JWT tokens

License Generator

Generate open source license text (MIT, GPL, Apache, BSD, etc.) with customizable author/year

MAC Address Generator & Vendor Lookup

Generate random MAC addresses and lookup vendor/OUI by prefix with built-in vendor database

MAC Address Validator & Converter

Validate MAC addresses in all formats (colon, hyphen, dot/Cisco, compact), convert between formats, detect vendor OUI from built-in database, identify unicast/multicast and universal/local from I/G and U/L bits

Makefile Generator

Generate Makefiles with common targets (all, install, build, test, lint, clean, run, deploy) for Node.js, Python, PHP, Go, Rust, C/C++, and generic projects

MIME Type Lookup

Lookup MIME types by extension or content type with description

Moon Phase Calculator

Calculate the moon phase, illumination percentage, age, and lunar cycle progress for any date with a visual moon rendering

Nginx Config Generator

Generate Nginx configuration snippets for reverse proxy, SPA, SSL, PHP-FPM, and more

npm Dependency Analyzer

Paste package.json to analyze dependency tree — total count, production vs dev, version range distribution, category grouping, and bundle size estimation

Number Base Converter

Convert between decimal, binary, octal, and hexadecimal with step-by-step calculation

Password Generator

Generate strong random passwords

PDF Compressor

Compress PDF file size

PDF Merger

Merge multiple PDF files into one document

PDF Metadata Editor

Edit PDF metadata (title, author, etc.)

PDF Page Remover

Remove specific pages from PDF

PDF Password Protector

Add a password and encrypt a PDF with user/owner passwords using qpdf (WASM). All processing is client-side

PDF Password Remover

Remove a known password/encryption from a PDF using qpdf (WASM). All processing is client-side

PDF Splitter

Split PDF into separate pages

PDF Text Extractor

Extract text content from PDF

PDF to Image

Convert PDF pages to images

Phone Number Validator

Validate international phone numbers with country code detection, format checking, and type identification

Port Checker

Check if a TCP port is open on a remote host with common port presets (HTTP, HTTPS, SSH, MySQL, etc.). Uses PHP fsockopen for real TCP connection testing

Postal Code Validator

Validate postal codes for 60+ countries with country-specific format rules, auto-detection from format, and country selector dropdown

Prettier Config Generator

Generate .prettierrc configuration files with tab width, semicolons, quotes, trailing commas, print width, arrow parens, and parser options in JSON, YAML, JS, or TOML format

Prime Number Checker

Check if a number is prime, find prime factors, and list prime numbers in a range

PWA Manifest Generator

Generate web app manifest.json with name, icons (multiple sizes), theme/accent color, display mode, orientation, scope, and start URL

Quote Generator

Generate random inspirational and famous quotes with attribution across 6 categories (wisdom, success, creativity, love, perseverance, life) with copy to clipboard

Random Data Generator

Generate random integers, decimals, strings, UUIDs, colors, dates, and booleans with configurable constraints and bulk quantity

README Template Generator

Generate README.md with badges, install, and configuration sections

Regex Escape Tool

Escape special regex characters in text for safe pattern usage

RGB to HEX Converter

Convert RGB/HSL colors to Hex and back

Scientific Notation Converter

Convert between decimal, scientific, engineering, and E notation

Semantic Version Calculator

Calculate next semver version with validation and comparison

Shortened URL Checker

Expand and inspect shortened URLs

Significant Figures Calculator

Count and round to specified significant figures with rules

SMS Counter

Count SMS characters, parts, and encoding

SQL Minifier

Minify/beautify SQL queries

SSN Validator

Validate US Social Security Number format with area number, group number, and serial number validation

Statistics Calculator

Calculate mean, median, mode, range, variance, standard deviation, and quartiles for any dataset

String Utilities

Reverse, truncate, pad, strip HTML, sort lines, case toggle, convert binary/hex/Base64

Subnet CIDR Calculator

Calculate network address, broadcast, subnet mask, host range, and binary from CIDR notation

Sunrise/Sunset Calculator

Calculate sunrise, sunset, dawn, dusk, civil/nautical/astronomical twilight times for any location and date using the NOAA solar position algorithm

SVG Minifier

Minify/optimize SVG files

Test Data Generator

Generate test data with schema definition and multiple output formats

Text Line Sorter

Sort text lines alphabetically, by length, numerically, or using natural sort order with ascending/descending and various options

Timezone Converter

Convert time across timezones

TypeScript tsconfig Generator

Generate tsconfig.json files with target, module, strict mode, paths, and framework presets (React, Vue, Node, Next.js, NestJS) — copy or download

Unit Converter

Convert between 80+ units across 11 categories: length, mass, volume, temperature, data, speed, time, area, pressure, energy, frequency

URL Status Checker

Check HTTP status code, full redirect chain (up to 10 hops), per-step response time, server headers, content size, and bulk URL checking. Uses Laravel HTTP client for server-side fetching

US ZIP Code Lookup

Lookup ZIP code details by code, city, or state -- find city, county, area code, timezone, and population

UUID & ULID Generator

Generate UUID v4/v7 and ULID

VAT Number Validator

Validate European VAT numbers with format checksum verification for all EU member states

Week Number Calculator

Calculate ISO week numbers for any date with monthly calendar view showing week numbers per day and complete yearly week overview

Whois Domain Lookup

Lookup domain registration information — registrar, creation/expiry dates, name servers, domain status, and raw WHOIS data. Connects to authoritative WHOIS servers via TCP port 43 for 60+ TLDs

World Clock

Display current time across multiple time zones simultaneously with real-time updates, 12/24h format toggle, and 80+ selectable cities worldwide

XML Minifier

Minify/beautify XML data