# QuikUtil
> Free browser-based utility tools. No signup.

Primary site: https://quikutil.com/
All tools: https://quikutil.com/tools/ (61 tools)
Contact: tools@quikutil.com

## Tools

- [Age Calculator](https://quikutil.com/tools/age-calculator/): Free age calculator. Enter a date of birth to get exact age in years, months, and days, plus total days and next birthday.
- [Aspect Ratio Calculator](https://quikutil.com/tools/aspect-ratio-calculator/): Free aspect ratio calculator. Simplify width×height ratios, use presets (16:9, 4:3, 1:1, 9:16), and scale dimensions for video or images.
- [Average Calculator](https://quikutil.com/tools/average-calculator/): Free average calculator. Paste numbers to get mean, median, mode, min, max, and count.
- [Base64 Encode Decode](https://quikutil.com/tools/base64/): Free Base64 encoder and decoder for text. Supports standard and URL-safe alphabets. Runs locally in your browser.
- [BMI Calculator](https://quikutil.com/tools/bmi-calculator/): Free BMI calculator for adults using metric or imperial units. See BMI value and WHO adult reference category. Not medical advice.
- [Case Converter](https://quikutil.com/tools/case-converter/): Free text case converter. Switch between UPPER, lower, Title Case, Sentence case, camelCase, PascalCase, snake_case, and kebab-case.
- [Coin Flip](https://quikutil.com/tools/coin-flip/): Free coin flip tool. Flip a virtual coin once or many times and see heads/tails counts.
- [Color Contrast Checker](https://quikutil.com/tools/color-contrast-checker/): Free WCAG color contrast checker. Compare foreground and background hex colors and see contrast ratio vs AA/AAA.
- [Color Picker](https://quikutil.com/tools/color-picker/): Free color picker and converter. Convert between HEX, RGB, and HSL with a live preview. Copy CSS-ready values instantly.
- [Compound Interest Calculator](https://quikutil.com/tools/compound-interest-calculator/): Free compound interest calculator. Estimate future value with principal, rate, years, compounding frequency, and optional contributions. Educational only.
- [Cron Expression Explainer](https://quikutil.com/tools/cron-expression-explainer/): Free cron expression explainer. Paste a 5-field cron and get a plain-English summary of minutes, hours, days, months, and weekdays.
- [CSS Unit Converter](https://quikutil.com/tools/css-unit-converter/): Free CSS unit converter. Convert between px, rem, and em using a root font size.
- [Days Between Dates](https://quikutil.com/tools/days-between-dates/): Free days between dates calculator. Find the number of days, weeks, and approximate months or years between two calendar dates.
- [Dice Roller](https://quikutil.com/tools/dice-roller/): Free dice roller. Roll NdX dice (like 3d6) with optional modifier. Great for games and quick random totals.
- [Discount Calculator](https://quikutil.com/tools/discount-calculator/): Free discount calculator. Compute sale price, amount saved, and optional tax from original price and percent off.
- [Dummy JSON Generator](https://quikutil.com/tools/dummy-json-generator/): Free dummy JSON generator. Create sample JSON arrays of people or products for mocking APIs and UI prototypes.
- [Fuel Cost Calculator](https://quikutil.com/tools/fuel-cost-calculator/): Free fuel cost calculator. Estimate trip cost from distance, MPG or L/100km, and fuel price.
- [GPA Calculator](https://quikutil.com/tools/gpa-calculator/): Free GPA calculator. Enter letter grades and credit hours for a weighted 4.0 GPA.
- [Grade Percentage Calculator](https://quikutil.com/tools/grade-percentage-calculator/): Free grade percentage calculator. Convert points earned vs points possible into a percentage and letter grade.
- [Hash Generator](https://quikutil.com/tools/hash-generator/): Free hash generator for SHA-256, SHA-512, SHA-384, and SHA-1. Hash text locally with Web Crypto. No upload.
- [Hours Minutes Calculator](https://quikutil.com/tools/hours-minutes-calculator/): Free hours and minutes calculator. Add or subtract time durations and convert totals to hours, minutes, or decimal hours.
- [HTML Encode Decode](https://quikutil.com/tools/html-encode-decode/): Free HTML encoder and decoder. Escape or unescape HTML entities (< > & quotes) for safe snippets. Runs locally in your browser.
- [Image Placeholder](https://quikutil.com/tools/image-placeholder/): Free image placeholder generator. Create custom width/height PNG placeholders with colors and labels for mockups.
- [JSON Formatter](https://quikutil.com/tools/json-formatter/): Free JSON formatter and validator. Beautify or minify JSON, sort keys, and catch syntax errors instantly in your browser.
- [JWT Decoder](https://quikutil.com/tools/jwt-decoder/): Free JWT decoder. Decode header and payload from a JSON Web Token client-side. Does not verify signatures.
- [Loan Calculator](https://quikutil.com/tools/loan-calculator/): Free loan calculator. Estimate monthly payments, total interest, and payoff time with optional extra payments. Educational use only.
- [Lorem Ipsum Generator](https://quikutil.com/tools/lorem-ipsum-generator/): Free lorem ipsum generator for paragraphs, sentences, or words. Instant placeholder text for mockups and design drafts. No signup.
- [Markdown Preview](https://quikutil.com/tools/markdown-preview/): Free Markdown preview tool. Type or paste Markdown and see a live HTML preview. Headings, lists, code, links, and quotes. Runs in your browser.
- [Meta Tag Generator](https://quikutil.com/tools/meta-tag-generator/): Free meta tag generator for title, description, canonical, robots, Open Graph, and Twitter cards. Copy HTML for your site head.
- [Morse Code Translator](https://quikutil.com/tools/morse-code-translator/): Free Morse code translator. Convert text to Morse code and Morse back to text. Dots, dashes, and spaces.
- [Mortgage Payoff Calculator](https://quikutil.com/tools/mortgage-payoff-calculator/): Free mortgage payoff calculator. See how extra monthly payments cut interest and shorten a fixed loan term. Educational only.
- [Number Base Converter](https://quikutil.com/tools/number-base-converter/): Free binary, octal, decimal, and hexadecimal converter. Convert between number bases instantly in your browser.
- [Password Generator](https://quikutil.com/tools/password-generator/): Free strong password generator. Choose length and character sets. Created locally with secure browser randomness.
- [Password Strength Checker](https://quikutil.com/tools/password-strength/): Free password strength checker. Estimate strength, entropy, and improvement tips locally in your browser. Nothing is uploaded.
- [Percentage Calculator](https://quikutil.com/tools/percentage-calculator/): Free percentage calculator for X% of Y, X is what percent of Y, and percent increase/decrease.
- [Phone Number Generator](https://quikutil.com/tools/phone-number-generator/): Generate random phone numbers by country for testing and mock data. US 555-style patterns, international formats, copy-ready lists.
- [QR Code Generator](https://quikutil.com/tools/qr-code-generator/): Free QR code generator. Convert any URL or text into a scannable QR code and download a PNG. No signup.
- [Random Name Generator](https://quikutil.com/tools/random-name-generator/): Free random name generator for fantasy, sci‑fi, modern names, and usernames. Generate lists instantly for games, stories, and mock data.
- [Random Number Generator](https://quikutil.com/tools/random-number-generator/): Free random number generator. Pick random integers between a minimum and maximum, one or many at once.
- [Reading Time Calculator](https://quikutil.com/tools/reading-time-calculator/): Free reading time calculator. Paste text to estimate read and speak duration from words-per-minute. Instant word and character counts.
- [Regex Tester](https://quikutil.com/tools/regex-tester/): Free online regex tester. Try JavaScript regular expressions against sample text, view matches and capture groups instantly. Runs locally.
- [Reverse Text](https://quikutil.com/tools/reverse-text/): Free reverse text tool. Reverse characters or reverse word order instantly in your browser.
- [Robots.txt Generator](https://quikutil.com/tools/robots-txt-generator/): Free robots.txt generator. Allow or block crawlers, add disallow rules, and include your sitemap URL. Copy-ready output.
- [Roman Numeral Converter](https://quikutil.com/tools/roman-numeral-converter/): Free Roman numeral converter. Convert numbers 1–3999 to Roman numerals and Roman numerals back to numbers instantly.
- [Sales Tax Calculator](https://quikutil.com/tools/sales-tax-calculator/): Free sales tax calculator. Add or remove sales tax from a price with a custom tax rate.
- [Sleep Calculator](https://quikutil.com/tools/sleep-calculator/): Free sleep cycle calculator. Find the best bedtime or wake-up time using 90-minute sleep cycles so you feel more rested.
- [Sort Lines](https://quikutil.com/tools/sort-lines/): Free line sorter. Sort text lines A-Z or Z-A, optionally case-insensitive, and remove duplicate lines.
- [SQL Formatter](https://quikutil.com/tools/sql-formatter/): Free SQL formatter. Beautify SQL keywords and clauses with basic indentation for readability. Runs in your browser.
- [Text Cleaner](https://quikutil.com/tools/text-cleaner/): Free text cleaner. Trim lines, collapse extra spaces, remove empty lines, or strip line breaks. Runs locally.
- [Text Diff](https://quikutil.com/tools/text-diff/): Free text diff checker. Compare two texts line-by-line or word-by-word and highlight additions and deletions in your browser.
- [Text to Binary](https://quikutil.com/tools/text-to-binary/): Free text to binary converter. Encode text to 8-bit binary or decode binary back to text in your browser.
- [Time Zone Converter](https://quikutil.com/tools/time-zone-converter/): Free time zone converter. Convert a date and time between world time zones with local, UTC, and Unix timestamp output.
- [Tip Calculator](https://quikutil.com/tools/tip-calculator/): Free tip calculator and bill splitter. Enter bill, tip percent, and party size for totals and per-person amounts.
- [Unit Converter](https://quikutil.com/tools/unit-converter/): Free unit converter for length, weight, temperature, and volume. Convert metric and imperial units instantly.
- [Unix Timestamp Converter](https://quikutil.com/tools/unix-timestamp/): Free Unix timestamp converter. Convert epoch seconds or milliseconds to human dates, or convert a date/time to Unix time.
- [URL Encode Decode](https://quikutil.com/tools/url-encode-decode/): Free URL encode and decode tool. Convert text with encodeURIComponent, encodeURI, or form-style + spaces. Runs locally in your browser.
- [UUID Generator](https://quikutil.com/tools/uuid-generator/): Generate free UUID v4 identifiers in bulk for apps, databases, and testing. Copy-ready browser tool.
- [What Is My IP](https://quikutil.com/tools/what-is-my-ip/): Find your public IP address instantly. Free IPv4/IPv6 lookup with approximate location and ISP details. No signup.
- [Word Counter](https://quikutil.com/tools/word-counter/): Free word counter for words, characters, sentences, paragraphs, and estimated reading time. Paste text for instant counts.
- [Word Frequency Counter](https://quikutil.com/tools/word-frequency-counter/): Free word frequency counter. Paste text to see the most common words and counts. Client-side only.
- [Word Unscrambler](https://quikutil.com/tools/word-unscrambler/): Free word unscrambler: enter jumbled letters to find real English words. Filters for Scrabble, Wordle, anagrams. Instant and private in your browser.

## Optional
- [Full catalog](https://quikutil.com/llms-full.txt)
- [Sitemap](https://quikutil.com/sitemap.xml)