URL Inspector
Break an absolute URL into protocol, host, path, query pairs and hash.
Latest tools
Newest first — a new tool is published every morning. Currently 112 tools and counting.
SHA-256 Hash Generator
Compute a SHA-256 hex digest of text entirely in the browser.
Random ID Generator
Create URL-safe random IDs locally with the Web Crypto random source.
Luhn Check Validator
Validate a card or ID number with the Luhn checksum, locally in the browser.
JWT Decoder
Decode a JWT header and payload locally without verifying the signature.
JSON String Escape
Escape text for JSON or unescape a JSON string literal in the browser.
HTTP Status Lookup
Look up common HTTP status codes with class and a practical meaning.
Hex to RGB Converter
Convert between hex and RGB, with HSL values and a local color preview.
Day of Year Calculator
Get the ordinal day of a date and the days left in that year.
Cron Expression Explainer
Turn a five-field cron expression into plain language and upcoming run times.
Color Palette Generator
Generate five hex tints and shades from a single base color.
Color Contrast Checker
Measure WCAG contrast between two hex colors for text and interface graphics.
Average Calculator
Calculate mean, median, mode, sum and count from a list of numbers.
UTM Link Builder
Append encoded UTM parameters to a landing-page URL for campaign tracking.
Straight Quote Converter
Turn curly quotes, dashes and invisible spaces into plain ASCII text.
Reading Time Calculator
Estimate reading time from word count and a words-per-minute pace.
Keyword Density Checker
Count a keyword or phrase and its percentage share of the text.
JSON Minifier
Compact valid JSON by removing insignificant whitespace after a real parse.
ISO Week Number Calculator
Look up the ISO week number, week-year and Monday start for any date.
CSS Specificity Calculator
Calculate CSS selector specificity as an (inline, ID, class, element) tuple.
Aspect Ratio Calculator
Solve width, height and simplified aspect ratios without breaking proportions.
Word Frequency Counter
Rank the words in a text by how often they appear, privately in the browser.
Unix Timestamp Converter
Convert epoch seconds or milliseconds to dates, and dates back to Unix timestamps.
PX to REM Converter
Convert CSS px and rem using a configurable root font size.
Passport Photo Maker
Crop passport, visa and exam-form photos to size, limit the file size in KB and print a copy sheet — free.
Palindrome Checker
Test words, phrases, and numbers for palindromes without uploading your text.
Image Resizer
Resize photos by pixels, percent or preset sizes for social media and passports — free and private.
CSV to Markdown Table
Convert CSV or TSV into a GitHub-flavored Markdown table in the browser.
CIDR Subnet Calculator
Find the IPv4 network, broadcast, usable hosts, and subnet mask for any CIDR prefix.
Background Remover
Remove the background from a photo and save a transparent PNG — free, private, no sign-up.
Split PDF
Extract pages or split a PDF by range into separate files — free and private.
Screen Recorder
Record your screen, a window or a tab with audio on desktop — free, no watermark, no install.
QR Code Generator
Make QR codes for links, Wi-Fi, UPI, WhatsApp and more — free PNG and SVG downloads.
Image Compressor
Make JPG, PNG and WebP images smaller with a live quality slider — free and private.
PDF Merger
Combine multiple PDFs into one file in any order — fast, free and fully private.
Images to PDF
Combine JPG, PNG and WebP images into one PDF with your choice of page size — free and private.
Time Converter Tool
Convert time between seconds, minutes, hours, days and weeks for scheduling and pacing.
Volume Converter Tool
Convert volume between liters, milliliters, gallons, cups, pints and cubic meters.
Area Converter Tool
Convert area between square meters, square feet, acres, hectares and square kilometers.
Data Size Converter Tool
Convert data sizes between bytes, KB, MB, GB, TB and PB with binary and decimal units.
Speed Converter Tool
Convert speed between km/h, mph, m/s and knots for driving, cycling and aviation.
Weight Converter Tool
Convert weight and mass between kilograms, grams, milligrams, pounds, ounces and tonnes instantly.
Length Converter Tool
Convert length and distance between meters, centimeters, kilometers, inches, feet, yards and miles with exact factors.
Dice Roll Tool
Roll one or more dice (d4–d20) for board games, RPGs and quick random picks.
Coin Flipper
Flip a virtual coin for instant, unbiased heads-or-tails decisions.
Random Color Picker
Generate random hex colors with a copy-ready swatch — useful for design mockups and palettes.
URL Extractor Tool
Pull every URL out of a block of text and list them one per line, duplicates removed.
Trim Lines Tool
Strip leading and trailing whitespace from every line of pasted text in one click.
Reverse Lines Tool
Reverse the order of lines in any list or paragraph — useful for undoing sorts and reordering blocks.
Snake Case Tool
Convert any phrase to snake_case for database columns, env vars and code identifiers.
Kebab Case Tool
Convert text to kebab-case with hyphens — perfect for CSS classes, URLs and file slugs.
Camel Case Tool
Turn any phrase into camelCase for variable names and code, preserving words automatically.
Lowercase Text Tool
Convert any text to all lowercase in one click — great for normalizing user input and cleaning captions.
Uppercase Text Tool
Convert any text to ALL UPPERCASE instantly — handy for headings, shouty titles and quick normalization.
Remove Duplicate Lines Tool
Remove duplicate lines from any list while keeping the order of the first occurrence.
Sort Lines
Alphabetically sort a pasted list of lines A to Z (or Z to A) in a single click.
Extract Emails
Pull every email address out of a block of text and list them one per line, duplicates removed.
Strip HTML Tags
Strip HTML tags from any snippet and keep the plain readable text behind the markup.
Sentence Case Converter
Normalize messy text into proper Sentence case with the first letter of every sentence capitalized.
Title Case Converter
Convert any sentence into clean Title Case for headings, titles and labels in one click.
Reverse Text
Flip any text backwards character by character - handy for puzzles, obfuscation and quick checks.
Text Cleaner
Clean up messy pasted text in one click: collapse extra spaces, trim line ends, drop empty lines and remove duplicates.
Add Line Numbers
Add sequential line numbers to any pasted text or list, perfect for code excerpts, scripts and numbered instruction sets.
Lottery Number Generator
Pick unique random lottery numbers from any range — 6 from 49, 5 from 90, Mega Millions and more — no repeats.
Random Password Generator
Generate strong random passwords with an adjustable length slider and toggles for uppercase, numbers and symbols.
Pressure Converter
Convert pressure between pascals, bar, atmospheres, psi and mmHg for engineering, weather and diving data.
Energy Converter
Convert energy between joules, kilowatt-hours, calories, BTU, electronvolts and more with exact physical factors.
Simple Interest Calculator
Calculate simple interest on any principal over days, months, or years. See the exact math and formula applied step by step.
EMI Calculator
Calculate Equated Monthly Installments (EMI) for home, car, or personal loans. View monthly payment, total interest payable, and payment breakdown.
Tip Calculator
Calculate tips easily and split the bill with friends. Features custom tip percentages, split count, and smart rounding options. Free and private.
Percentage Calculator
Solve any percentage problem: calculate percentage of a value, percentage ratio of two values, percentage increase or decrease, and reverse percentages.
BMI Calculator
Calculate your Body Mass Index (BMI) instantly. Supports metric and imperial units, shows your weight category, and provides healthy weight guidance.
Time Converter
Convert between milliseconds, seconds, minutes, hours, days, weeks, months and years.
Volume Converter
Convert liters, milliliters, US gallons, cups, tablespoons and teaspoons for recipes and science.
Area Converter
Convert square meters, square feet, acres, hectares and more for property, land and DIY projects.
Data Size Converter
Convert bytes, KB, MB, GB, TB and binary KiB/MiB/GiB/TiB — finally reconcile what your OS and your disk label each claim.
Speed Converter
Convert speed between m/s, km/h, mph, knots and ft/s with exact factors.
Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin using the exact official formulas.
Weight Converter
Convert kilograms, grams, pounds, ounces, stones and metric tons instantly with precise factors.
Length Converter
Convert between meters, kilometers, miles, feet, inches and more with exact, standards-based factors.
Yes or No Generator
Get an instant random Yes or No for any decision question — no login, no judgment.
Random Date Generator
Generate random dates within any range, with weekdays — ideal for test data and mockups.
Random Letter Generator
Pick random letters of the alphabet for games, initials and classroom activities.
Random Color Generator
Generate random hex color codes for palettes, placeholders and design inspiration — up to 8 at once.
Coin Flip
Flip a virtual coin for instant heads-or-tails decisions — flip up to 10 times and see the tally.
Dice Roller
Roll virtual dice: d4 through d20, up to 20 dice at once with individual rolls and totals.
Random Number Generator
Generate random integers in any range, up to 20 at a time — for raffles, dice, sampling and games.
ROT13 Encoder / Decoder
Apply the classic ROT13 cipher to obscure spoilers and puzzle answers — encoding and decoding are the same operation.
Unicode Escape Converter
Convert non-ASCII text to JavaScript-style \u escape sequences and decode them back to readable characters.
Text to Binary Converter
See any text as 8-bit binary bytes and convert binary back to readable text with validation.
Text to Hex Converter
Convert text to its hexadecimal byte representation and back, with full UTF-8 support for any language.
HTML Entity Encoder / Decoder
Escape text into HTML entities for safe display in markup, and decode entities back to readable text.
URL Encoder / Decoder
Percent-encode and decode URL components so special characters never break your links or query strings.
Variable Case Converter
Convert identifier names between camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE for any programming language.
URL Extractor
Extract all http and https links from any document, log or page source, deduplicated into a tidy list.
Email Extractor
Pull every email address out of any pasted text, deduplicated and ready to copy as a clean list.
HTML to Text Converter
Strip HTML tags and decode entities to recover clean readable text, with paragraphs and line breaks preserved sensibly.
Remove Extra Whitespace
Collapse runs of spaces and tabs into single spaces and trim line ends — instant cleanup after copy-pasting from PDFs.
Remove Empty Lines
Strip blank and whitespace-only lines from pasted text and optionally trim line ends, for compact clean lists.
Reverse Text Generator
Reverse text character by character or flip the order of lines — Unicode-aware so emoji and accents survive intact.
Sort Lines Alphabetically
Alphabetize any list A→Z or Z→A with natural number handling, so item2 sorts before item10.
Remove Duplicate Lines
Delete duplicate lines from any list while keeping the original order. Perfect for cleaning exports, email lists and keyword lists.
Base64 Encoder / Decoder
Encode and decode Base64 text online with full Unicode and emoji support. Safe copy-paste for tokens, data URIs and API payloads.
Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE with one click.
Lorem Ipsum Generator
Generate lorem ipsum placeholder text by paragraphs, sentences or words. Classic start option, HTML paragraph wrapping, copy in one click. Free.
Slug Generator
Turn titles into clean, SEO-friendly URL slugs. Handles accents, removes stop words, custom separators, bulk line-by-line mode. Free and private.
Age Calculator
Calculate your exact age in years, months and days — plus total days lived, day of birth, zodiac sign and countdown to your next birthday. Free.
Unit Converter
Convert length, weight, temperature, speed, area, volume, data and time units instantly with exact conversion factors. Free, fast, no sign-up.
UUID Generator
Generate up to 100 random UUID version 4 identifiers at once, uppercase or without hyphens. Cryptographically secure, free, no sign-up.
Password Generator
Generate strong random passwords with crypto-grade randomness. Control length, symbols and ambiguous characters, see entropy strength. Free & private.
JSON Formatter & Validator
Format, validate and minify JSON instantly. Precise error location with line and column, key sorting, 2/4-space or tab indent, and file download. Free.
Word Counter
Count words, characters, sentences and paragraphs instantly, with reading time and keyword density. Free, private, no sign-up — runs in your browser.