# Cubbbix Fast, free, privacy-friendly online tools and calculators for developers, students, creators, educators, mathematicians, finance teams, SEO specialists, and everyday use. ## Key pages - Home: https://cubbbix.com/ - Tools index: https://cubbbix.com/all-tools-catalog.php - Blog index: https://cubbbix.com/blog.php - Sitemap: https://cubbbix.com/sitemap.php - Robots: https://cubbbix.com/robots.txt - Privacy: https://cubbbix.com/privacy.php - Terms: https://cubbbix.com/terms.php - Contact: https://cubbbix.com/contact.php - Careers: https://cubbbix.com/careers.php ## AI tools - [OpenClaw Cost Calculator](https://cubbbix.com/openclaw-cost-calculator/) - Estimate monthly AI agent API costs. ## Calculators - [Age Calculator](https://cubbbix.com/age-calculator/) - Calculate exact age in years, months, and days. - [Birth Year Calculator](https://cubbbix.com/birth-year-calculator/) - Find your birth year from age and date. - [BMI Calculator](https://cubbbix.com/bmi-calculator/) - Calculate BMI and weight category. - [Byte Converter](https://cubbbix.com/byte-converter/) - Convert bits, bytes, KB, MB, GB, TB, PB. - [Calculatrice Hypothécaire Suisse](https://cubbbix.com/calculatrice-hypothecaire-suisse/) - Swiss mortgage affordability and down payment calculator. - [CC to HP Calculator](https://cubbbix.com/cc-to-hp-calculator/) - Convert engine CC to horsepower and HP to CC. - [Dasvandh Calculator](https://cubbbix.com/dasvandh-calculator/) - Calculate 10% Dasvandh. - [Decimal to Fraction Calculator](https://cubbbix.com/decimal-to-fraction-calculator/) - Convert decimals to fractions. - [Dimensional Weight Calculator](https://cubbbix.com/volumetric-weight-calculator/) - Calculate dimensional (volumetric) shipping weight. - [How Rich Would You Be](https://cubbbix.com/how-rich-if-started-earlier/) - See the cost of waiting to invest. - [Month Calculator](https://cubbbix.com/month-calculator/) - Months between dates, add or subtract months. - [Mortgage Calculator](https://cubbbix.com/mortgage-calculator/) - Monthly payment and amortization schedule. - [Formal Charge Calculator](https://cubbbix.com/formal-charge-calculator/) - Formal charge from Lewis structures. - [Percentage Calculator](https://cubbbix.com/percentage-calculator/) - Percentage increase, decrease, and difference. - [Population Growth Calculator](https://cubbbix.com/population-growth-calculator/) - Project future population with multiple models. - [PSU Wattage Calculator](https://cubbbix.com/psu-wattage-calculator/) - Estimate PC power needs and PSU size. - [Quarts to Pounds Calculator](https://cubbbix.com/quarts-to-pounds-calculator/) - Convert quarts and pounds using density. - [RERA Calculator](https://cubbbix.com/rera-calculator/) - Dubai rent increase calculator using RERA index. - [Shipping Box Optimizer](https://cubbbix.com/shipping-box-optimizer/) - Find the smallest standard box for items. - [Similar Triangle Calculator](https://cubbbix.com/similar-triangle-calculator/) - Similar triangles and scale factors. - [Tire Size Calculator](https://cubbbix.com/tire-size-calculator/) - Compare tire sizes and speedometer error. - [Tithing Calculator](https://cubbbix.com/tithing-calculator/) - Calculate tithing. - [UAE Gratuity Calculator](https://cubbbix.com/uae-gratuity-calculator/) - UAE end-of-service gratuity calculator. - [Unit Converter](https://cubbbix.com/unit-converter/) - Convert common units. - [Weeks Ago Calculator](https://cubbbix.com/weeks-ago-calculator/) - Date and day name for N weeks ago. - [Weeks Left in the Year](https://cubbbix.com/weeks-left-in-the-year/) - Weeks, days, hours left in a year. - [Oil Change Cost Calculator](https://cubbbix.com/oil-change-cost-calculator/) - Oil change cost estimate. - [Yards to Tons Calculator](https://cubbbix.com/yards-to-tons-calculator/) - Convert cubic yards and tons for materials. ## Career tools - [Job Title Generator](https://cubbbix.com/job-title-generator/) - Generate job titles for resumes and LinkedIn. - [Resume ATS Score Checker](https://cubbbix.com/resume-ats-score-checker/) - Score your resume for ATS screening. ## Developer tools - [Base64 Encoder and Decoder](https://cubbbix.com/base64-encoder-decoder/) - Encode and decode Base64. - [Case Converter](https://cubbbix.com/case-converter/) - Convert text casing. - [Chmod Calculator](https://cubbbix.com/chmod-calculator/) - Linux permissions calculator. - [Convert Letters to Binary](https://cubbbix.com/text-to-binary-converter/) - Text to binary conversion. - [API Data Fetcher](https://cubbbix.com/api-data-fetcher/) - Fetch and inspect API responses. - [Data Cleaner](https://cubbbix.com/data-cleaner/) - Clean and deduplicate lists and CSVs. - [CSV to JSON](https://cubbbix.com/csv-to-json/) - Convert CSV to JSON. - [CSV to Markdown](https://cubbbix.com/csv-to-markdown/) - Convert CSV to Markdown tables. - [Date-Time Converter](https://cubbbix.com/date-time-converter/) - Convert to ISO 8601, RFC 3339, Unix, Excel, and more. - [Developer Reality Check](https://cubbbix.com/developer-reality-check/) - Confidence vs competence test. - [Code Typing Test](https://cubbbix.com/code-typing-test/) - Typing test on real code snippets. - [Developer Typing Test](https://cubbbix.com/developer-typing-test/) - Coding speed test with syntax highlighting. - [Encrypt and Decrypt Text](https://cubbbix.com/encrypt-decrypt-text/) - Client-side encryption and decryption. - [Generate UPC Label](https://cubbbix.com/generate-upc-label/) - Generate UPC-A barcodes (single and bulk). - [Git Commit Hash Generator](https://cubbbix.com/git-commit-hash-generator/) - Generate Git commit hashes. - [Hash Generator](https://cubbbix.com/hash-generator/) - Generate MD5 and SHA hashes. - [JSON Formatter and Validator](https://cubbbix.com/json-formatter/) - Beautify, minify, validate JSON. - [JSON to CSV](https://cubbbix.com/json-to-csv/) - Convert JSON to CSV. - [JSON Converter](https://cubbbix.com/json-to-toon-encoder/) - Convert JSON to other formats. - [JWT Decoder](https://cubbbix.com/jwt-decoder/) - Decode JWT tokens. - [LLM API Cost Calculator](https://cubbbix.com/llm-api-cost-calculator/) - Compare LLM API pricing. - [Lorem Ipsum Generator](https://cubbbix.com/lorem-ipsum-generator/) - Generate placeholder text. - [Markdown to HTML](https://cubbbix.com/markdown-to-html/) - Convert Markdown to HTML. - [Markdown to PDF](https://cubbbix.com/markdown-to-pdf/) - Convert Markdown to PDF. - [RAID Calculator](https://cubbbix.com/raid-calculator/) - RAID usable space calculator. - [Regex Tester](https://cubbbix.com/regex-tester/) - Test regular expressions. - [Screen Resolution Simulator](https://cubbbix.com/screen-resolution-simulator/) - Responsive testing on common devices. - [SEO Text Analyzer](https://cubbbix.com/seo-text-analyzer/) - Analyze text for SEO metrics. - [Text Diff Checker](https://cubbbix.com/diff-checker/) - Compare text and code differences. - [Timestamp Converter](https://cubbbix.com/timestamp-converter/) - Unix timestamps to human dates. - [Token Generator](https://cubbbix.com/token-generator/) - Generate random tokens and strings. - [URL Encoder and Decoder](https://cubbbix.com/url-encoder-decoder/) - Encode and decode URLs. - [URL to Markdown](https://cubbbix.com/url-to-markdown/) - Convert webpages to Markdown. - [UUID Generator](https://cubbbix.com/uuid-generator/) - Generate UUIDs. - [Word Counter](https://cubbbix.com/word-counter/) - Count words and characters. ## Education tools - [Arabic Quiz](https://cubbbix.com/arabic-quiz/) - Arabic proficiency test with PDF certificate. - [Chinese Quiz](https://cubbbix.com/chinese-quiz/) - Mandarin assessment with PDF certificate. - [Korean Quiz](https://cubbbix.com/korean-quiz/) - Korean assessment with PDF certificate. - [English Quiz](https://cubbbix.com/quiz/) - English assessment with PDF certificate. - [French Quiz](https://cubbbix.com/french-quiz/) - French assessment with PDF certificate. - [Gen Z Slang Quiz](https://cubbbix.com/gen-z-slang-quiz/) - Slang test with rank certificate. - [German Quiz](https://cubbbix.com/german-quiz/) - German assessment with PDF certificate. - [Italian Quiz](https://cubbbix.com/italian-quiz/) - Italian assessment with PDF certificate. - [Japanese Quiz](https://cubbbix.com/japanese-quiz/) - Japanese assessment with PDF certificate. - [Click Speed Test](https://cubbbix.com/click-speed-test/) - CPS clicking speed test. - [Reaction Time Test](https://cubbbix.com/reaction-time-test/) - Reaction speed test. - [Portuguese Quiz](https://cubbbix.com/portuguese-quiz/) - Portuguese assessment with PDF certificate. - [Russian Quiz](https://cubbbix.com/russian-quiz/) - Russian assessment with PDF certificate. - [Spanish Quiz](https://cubbbix.com/spanish-quiz/) - Spanish assessment with PDF certificate. - [Spanish Number to Text](https://cubbbix.com/spanish-number-to-text/) - Convert numbers to Spanish text. - [Square Root Curve Calculator](https://cubbbix.com/square-root-curve-calculator/) - Curve grades with a square root formula. - [Typing Defense](https://cubbbix.com/typing-defense/) - Typing game. - [Typing Speed Test](https://cubbbix.com/typing-speed-test/) - WPM typing test. - [US Citizenship Test](https://cubbbix.com/us-citizenship-test/) - USCIS civics quiz. - [Mental Generation Quiz](https://cubbbix.com/mental-generation-quiz/) - Personality quiz. - [Generation Calculator](https://cubbbix.com/generation-calculator/) - Find your generation from birth year. - [IELTS Band Score Calculator](https://cubbbix.com/ielts-band-score-calculator/) - IELTS band score calculator. - [WCPM Calculator](https://cubbbix.com/wcpm-calculator/) - Words correct per minute calculator. - [Word Problem Solver](https://cubbbix.com/word-problem-solver/) - Step-by-step math word problem solver. ## Entertainment tools - [Tetris](https://cubbbix.com/tetris/) - Play Tetris online. - [Cat Name Generator](https://cubbbix.com/cat-name-generator/) - Cat name ideas. - [Christmas Countdown](https://cubbbix.com/christmas-countdown/) - Countdown to Christmas. - [Dog Age Calculator](https://cubbbix.com/dog-age-calculator/) - Dog age to human years. - [Dog Name Generator](https://cubbbix.com/dog-name-generator/) - Dog name ideas. - [Fairy Name Generator](https://cubbbix.com/fairy-name-generator/) - Fairy name generator. - [Meme Generator](https://cubbbix.com/meme-generator/) - Create memes. - [Movie Picker](https://cubbbix.com/movie-picker/) - Random movie picker. - [Stroop Effect Test](https://cubbbix.com/stroop-effect-test/) - Stroop effect test. - [Trivia Quiz](https://cubbbix.com/trivia-quiz/) - Trivia quiz. - [Vibe Check Calculator](https://cubbbix.com/vibe-check-calculator/) - Vibe check quiz. - [Sun Moon Rising Calculator](https://cubbbix.com/sun-moon-rising-calculator/) - Astrology big three calculator. - [Yes No Generator](https://cubbbix.com/yes-no-generator/) - Yes or no generator. ## Health - [ADHD Self-Test](https://cubbbix.com/adhd-self-test/) - ASRS-v1.1 screening test. - [mEq to mL Calculator](https://cubbbix.com/meq-to-ml-calculator/) - Convert mEq and mL. ## Finance tools - [50/30/20 Budget Calculator](https://cubbbix.com/50-30-20-budget-calculator/) - Budget split calculator. - [Early Payoff Calculator](https://cubbbix.com/early-payoff-calculator/) - Auto loan early payoff savings. - [Cat Food Cost Calculator](https://cubbbix.com/cat-food-cost-calculator/) - Cat feeding cost calculator. - [Compound Interest Calculator](https://cubbbix.com/compound-interest-calculator/) - Compound interest with contributions. - [CSV to OFX](https://cubbbix.com/csv-to-ofx/) - Convert bank CSV to OFX. - [Crypto Risk Checker](https://cubbbix.com/crypto-risk-checker/) - Self-custody security audit. - [FICO Score Estimator](https://cubbbix.com/fico-score-estimator/) - Estimate FICO score. - [Maaser Calculator](https://cubbbix.com/maaser-calculator/) - Ma'aser and Chomesh calculator. - [LTV Calculator](https://cubbbix.com/ltv-calculator/) - Customer lifetime value calculator. - [Severance Pay Calculator](https://cubbbix.com/severance-pay-calculator/) - Severance pay calculator. - [VAT Calculator](https://cubbbix.com/vat-calculator/) - Value added tax calculator. - [Zakat Calculator](https://cubbbix.com/zakat-calculator/) - Zakat calculator. ## Home and garden - [Mulch Calculator](https://cubbbix.com/mulch-calculator/) - Mulch and soil estimate. - [Plant Spacing Calculator](https://cubbbix.com/plant-spacing-calculator/) - Grid vs staggered spacing. - [Planting Calendar](https://cubbbix.com/planting-calendar/) - Planting schedule from frost dates. ## Math tools - [Binomial Distribution Calculator](https://cubbbix.com/binomial-distribution-calculator/) - Binomial probabilities. - [Partial Derivative Calculator](https://cubbbix.com/partial-derivative-calculator/) - Partial derivatives with steps. - [Significant Figures Calculator](https://cubbbix.com/sig-figs-calculator/) - Significant figures and rounding. - [Variance Calculator](https://cubbbix.com/variance-calculator/) - Variance calculator. ## Media tools - [Add Noise to Image](https://cubbbix.com/add-noise/) - Add film grain and noise. - [Adjust Image Gamma](https://cubbbix.com/adjust-gamma/) - Adjust gamma curve. - [Aspect Ratio Calculator](https://cubbbix.com/aspect-ratio-calculator/) - Maintain image and video ratios. - [Censor Photo](https://cubbbix.com/censor-photo/) - Blur or pixelate parts of an image. - [Change Brightness](https://cubbbix.com/change-brightness/) - Change image brightness. - [Change Contrast](https://cubbbix.com/change-contrast/) - Change image contrast. - [Change Exposure](https://cubbbix.com/change-exposure/) - Change image exposure. - [Change Saturation](https://cubbbix.com/change-saturation/) - Change image saturation. - [Clip Image](https://cubbbix.com/clip-image/) - Crop to shapes. - [Compress Image](https://cubbbix.com/compress-image/) - Compress images online. - [Country Flag Downloader](https://cubbbix.com/country-flag-downloader/) - Download flags in SVG, PNG, JPG, or WebP. - [Darken Image](https://cubbbix.com/darken-image/) - Darken images. - [Disappearing PNG Creator](https://cubbbix.com/disappearing-png-creator/) - Make a disappearing PNG animation. - [Duotone Effect](https://cubbbix.com/duotone-effect/) - Duotone image effect. - [Favicon Generator](https://cubbbix.com/favicon-generator/) - Generate favicons. - [Flip Image](https://cubbbix.com/flip-image/) - Flip images. - [Grayscale Image](https://cubbbix.com/grayscale-image/) - Convert to grayscale. - [Invert Image Colors](https://cubbbix.com/invert-image-colors/) - Invert colors. - [Lighten Image](https://cubbbix.com/lighten-image/) - Lighten images. - [Merge Images](https://cubbbix.com/merge-images/) - Merge images. - [PDF to JPG](https://cubbbix.com/pdf-to-jpg/) - Convert PDF pages to JPG. - [Overlay Images](https://cubbbix.com/overlay-images/) - Overlay images. - [PNG Optimizer](https://cubbbix.com/png-optimizer/) - Compress PNG images. - [PNG Sequence Maker](https://cubbbix.com/png-sequence-maker/) - GIF to PNG sequence. - [PNG Color Replacer](https://cubbbix.com/change-png-color/) - Replace colors in PNG. - [Random Bitmap Generator](https://cubbbix.com/random-bitmap-generator/) - Random bitmap generator. - [Sepia Effect](https://cubbbix.com/sepia-effect/) - Sepia filter. - [Shift Image Hue](https://cubbbix.com/add-hue/) - Hue shift. - [Split Image](https://cubbbix.com/split-image/) - Split images into parts. - [SVG to Favicon](https://cubbbix.com/svg-to-favicon/) - Convert SVG to favicon. - [Venn Diagram Generator](https://cubbbix.com/venn-diagram-generator/) - Venn diagrams export. - [WebP Converter](https://cubbbix.com/webp-converter/) - Convert to WebP. - [Webcam Test](https://cubbbix.com/webcam-test/) - Webcam and mic test. ## Productivity - [Crontab Generator](https://cubbbix.com/crontab-generator/) - Cron schedule editor. - [Email Permutator](https://cubbbix.com/email-permutator/) - Generate email permutations. - [Email Signature Generator](https://cubbbix.com/email-signature-generator/) - Create email signatures. - [Pomodoro Timer](https://cubbbix.com/pomodoro-timer/) - Pomodoro focus timer. - [Salary to Hourly](https://cubbbix.com/salary-to-hourly/) - Salary to hourly conversion. - [Sleep Cycle Calculator](https://cubbbix.com/sleep-cycle-calculator/) - Sleep cycle calculator. - [Time Zone Calculator](https://cubbbix.com/time-zone-calculator/) - Time zone difference calculator. - [Useless Meeting Cost Calculator](https://cubbbix.com/useless-meeting-cost-calculator/) - Cost of useless meetings. ## SEO - [Backlink Checker](https://cubbbix.com/backlink-checker/) - Backlink checker. - [Broken Link Checker](https://cubbbix.com/broken-link-checker/) - 404 and broken link finder. - [Compression Checker](https://cubbbix.com/compression-checker/) - Gzip and Brotli checker. - [Google SERP Simulator](https://cubbbix.com/google-serp-simulator/) - SERP preview. - [H1 Tag Checker](https://cubbbix.com/h1-tag-checker/) - H1 checker. - [HTTP Status Checker](https://cubbbix.com/http-status-checker/) - HTTP status checker. - [Meta Description Generator](https://cubbbix.com/meta-description-generator/) - Meta description generator. - [Noindex Checker](https://cubbbix.com/noindex-checker/) - Indexability checker. - [On-Page SEO Check](https://cubbbix.com/onpage-seo-check/) - On-page audit. - [Open Graph Checker](https://cubbbix.com/open-graph-checker/) - Open Graph preview. - [Page Title Generator](https://cubbbix.com/page-title-generator/) - Page title generator. - [Structured Data Checker](https://cubbbix.com/structured-data-check/) - Schema validator. - [SSL Checker](https://cubbbix.com/ssl-checker/) - SSL certificate checker. - [Domain Age Checker](https://cubbbix.com/domain-age-checker/) - Domain age checker. - [Viewport Checker](https://cubbbix.com/viewport-checker/) - Viewport meta checker. ## Sports - [Net Run Rate Calculator](https://cubbbix.com/nrr-calculator/) - Cricket NRR calculator. ## Social media tools - [CPM Calculator](https://cubbbix.com/cpm-calculator/) - CPM calculator. - [Engagement Rate Calculator](https://cubbbix.com/social-media-engagement-calculator/) - Engagement rate calculator. - [Instagram Font Generator](https://cubbbix.com/instagram-font-generator/) - Instagram font generator. - [Instagram Reel Downloader](https://cubbbix.com/instagram-reel-downloader/) - Reel downloader. - [Pinterest Pin Downloader](https://cubbbix.com/pinterest-pin-downloader/) - Pinterest pin downloader. - [Wedding Hashtag Generator](https://cubbbix.com/wedding-hashtag-generator/) - Wedding hashtag generator. - [YouTube Thumbnail Downloader](https://cubbbix.com/youtube-thumbnail-downloader/) - YouTube thumbnail downloader. - [YouTube Subscriber Counter](https://cubbbix.com/youtube-subscriber-counter/) - Live subscriber counter. - [YouTube RPM Calculator](https://cubbbix.com/youtube-rpm-calculator/) - YouTube RPM calculator. ## Travel - [Flight Path Calculator](https://cubbbix.com/flight-path-calculator/) - Flight path and distance calculator. ## Utilities - [Atomic Number Calculator](https://cubbbix.com/atomic-number-calculator/) - Atomic number and element data. - [Bijoy Unicode Converter](https://cubbbix.com/bijoy-unicode-converter/) - Bijoy to Unicode and Unicode to Bijoy. - [Color Converter](https://cubbbix.com/color-converter/) - HEX, RGB, HSL, CMYK conversion. - [CMYK to Pantone Converter](https://cubbbix.com/cmyk-to-pantone-converter/) - CMYK and Pantone conversion. - [Compress PDF](https://cubbbix.com/pdf-compressor/) - Reduce PDF size. - [PDF to Markdown](https://cubbbix.com/pdf-to-markdown/) - Convert PDF to Markdown. - [Excel to HTML](https://cubbbix.com/excel-to-html/) - Excel to HTML tables. - [Hours Ago Calculator](https://cubbbix.com/hours-ago-calculator/) - Time X hours ago. - [Laundry Symbol Decoder](https://cubbbix.com/laundry-symbol-decoder/) - Laundry symbol meanings. - [Merge PDF](https://cubbbix.com/pdf-merge/) - Merge PDF files. - [Military Time Converter](https://cubbbix.com/military-time-converter/) - 24-hour and 12-hour conversion. - [Temperature Converter](https://cubbbix.com/temperature-converter/) - Temperature conversion. - [Password Generator](https://cubbbix.com/password-generator/) - Secure password generator. - [PDF Splitter](https://cubbbix.com/pdf-splitter/) - Split and extract PDF pages. - [Privacy Policy Generator](https://cubbbix.com/privacy-policy-generator/) - Generate a privacy policy. - [QR Code Generator](https://cubbbix.com/qr-code-generator/) - QR code generator. - [Sample Audio Files](https://cubbbix.com/sample-audio-files/) - Sample audio files for testing. - [Sample Document Files](https://cubbbix.com/sample-document-files/) - Sample documents for testing. - [Sample Image Files](https://cubbbix.com/sample-image-files/) - Sample images for testing. - [Sample Video Files](https://cubbbix.com/sample-video-files/) - Sample videos for testing. - [Slug Generator](https://cubbbix.com/slug-generator/) - Slug generator. - [What Is My IP](https://cubbbix.com/what-is-my-ip/) - Public IP lookup. - [White Screen](https://cubbbix.com/white-screen/) - Fullscreen white screen. - [Fake Word Generator](https://cubbbix.com/fake-word-generator/) - Generate pronounceable invented words offline. - [Gamertag Generator](https://cubbbix.com/gamertag-generator/) - Generate Xbox, random, and funny gamertags. - [Word Unscrambler](https://cubbbix.com/word-unscrambler/) - Unscramble letters into words.