Browse by Site

unitsconverter.io

UnitsConverter.io provides unit conversion tools and reference information across categories like weight. ([unitsconverter.io](https://unitsconverter.io/convert/weight/atomic-mass-unit-to-kilogram/))

unitsconverters.com

UnitsConverters.com hosts a suite of 7 conversion tools for various units of measurement, including pressure (Atmospheres to PSI), volume flow rate (Barrel Per Minute to Lpm), mass (Atomic Mass Units to Kilograms), force (Attownewton to Fn), and distance (Barleycorn to Millimeters).

colorado.edu

University of Colorado Boulder (Vaccine Simulator) hosts educational tools to help users understand and explore complex issues related to vaccines, including a Biden's Vaccine Plan Calculator to simulate different vaccination strategies.

homepage.divms.uiowa.edu

homepage.divms.uiowa.edu hosts a variety of probability calculators for statistical analysis, including a Beta Distribution Calculator to help with statistical inference and hypothesis testing.

unixtimestamp.com

UnixTimestamp.com generates and converts Unix epoch timestamps in seconds and milliseconds.

usefuldevtools.com

Useful DevTools is a resource for parents and pet owners, offering practical tools like a Benadryl dosage calculator for dogs to help manage their children's health safely.

utilitiesbunker.com

Utilities Bunker offers free online utilities and electronics calculation tools. The dB calculator page provides multiple modes including voltage ratio conversions. ([utilitiesbunker.com](https://www.utilitiesbunker.com/modules/electronics/db-calc.php))

utilitygrove.com

Free online tools, calculators, converters, and generators for everyday tasks and productivity.

utilitypanda.com

Collection of free online calculators for conversions and calculations.

vdo.ninja

VDO.Ninja hosts a collection of handy online tools to simplify web development tasks. Their Base64 to CSS converter is just one example of how they assist users in creating and manipulating stylesheets more efficiently.

vhsfilter.com

Free online VHS filter for photos and videos with retro tape effects, color bleed, and signal noise.

covid19vaccineallocation.org

covid19vaccineallocation.org hosts Vaccine Allocation Planner (Ariadne Labs + Surgo), providing a tool like Biden’s Vaccine Plan Calculator to help understand and plan vaccine distribution strategies during the COVID-19 pandemic.

valoremfirst.com

Valorem Reply is a platform hosting various tools to enhance productivity and efficiency. One of its offerings is the Backup Recovery Time Calculator, which helps users estimate how long it will take to recover their data in case of a backup failure.

valuta.exchange

Valuta Exchange is a currency data site with real-time exchange rates and conversion calculators. It includes tools for comparing rates across amounts.

valutafx.com

ValutaFX provides foreign exchange rate data, historical charts, and currency conversion tools. The site focuses on exchange-rate information and related guidance.

vanguard.com.au

Vanguard’s insights site with investor education content and tools such as the Asset Class Tool. ([insights.vanguard.com.au](https://insights.vanguard.com.au/static/asset-class/app.html?utm_source=openai))

venngage.com

Venngage.com hosts a bar graph maker, allowing users to easily create visual representations of data with customizable options for colors and labels.

venom-powersports.com

Venom Powersports provides financing-related resources for powersports purchases. The financing section includes tools intended to help shoppers plan payments. ([venom-powersports.com](https://venom-powersports.com/financing-calculator))

versapay.com

Versapay.com provides financial management tools for businesses, including an Average Collection Period Calculator to help track payment timelines.

vibroabsorber.com

Industrial shock absorber sizing calculator for mechanical engineers and machinery designers.

visual-paradigm.com

Visual Paradigm Online hosts an average rating calculator tool to help users assess the quality of various options based on user ratings and reviews.

voicedeck.io

VoiceDeck is an AI-powered audio review and delivery platform for voice production teams. ([voicedeck.io](https://voicedeck.io/tools/sample-rate-converter/))

voxeldraft.com

Browser-based voxel editor for creating block art and game assets.

wallaceracing.com

Wallace Racing is a site dedicated to motorsport enthusiasts, offering tools like the BSFC Calculator to help with engine performance analysis.

wallethub.com

WalletHub is wallethub.com hosts various financial tools to help users analyze banking costs and compare fees between different accounts.

watercalculator.org

Water Footprint Calculator (EcoRise) is a domain hosting various water usage calculators. The site offers a Bath vs Shower Calculator to compare the water consumption of different bathing methods.

wattscalc.com

Free electrical conduit bending calculator for field professionals.

web.archive.org

The Internet Archive's Wayback Machine lets you view historical snapshots of any web page — over 800 billion pages archived since 1996.

webtoolplus.com

Web Tool Plus is a site that offers various useful online tools to help with tasks like encoding and decoding Base64 data.

webfixkit.com

Free browser-based tools for developers, designers, marketers, and creators.

webmd.com

WebMD.com hosts useful health and wellness tools like BMI calculators for teens and adults to help manage weight and overall wellbeing.

webthemez.com

WebThemez Tools is webthemez.com's resource for handy online utilities. It offers a suite of tools like BBCode Viewer and Base64 to XML converter to help with various tasks efficiently.

webtoolsedge.com

Free browser-based toolkit offering text processing, SEO checks, image conversion, developer tools, and calculators.

webutility.io

WebUtility.io is a platform hosting various online utilities and tools for web developers and designers. It offers a Babel Formatter to help with JavaScript code transformation between different versions.

weightedgradecalculatorai.com

wellcalculate.com

WellCalculate.com hosts useful calculators including a Velocity Calculator and a D&D 5e HP Calculator, offering quick calculations for various needs.

wheelofwinner.com

A free online wheel spinner for creating custom wheels and making random decisions.

whenmybaby.com

WhenMyBaby.com hosts BBT Calculator and Basal Body Temperature tracking tools to help users monitor their fertility and track ovulation.

whitescreen.im

wideareaai.com

Wide Area AI is a local-first AI gateway plus a suite of free calculators for running LLMs on your own hardware — VRAM sizing, GPU selection, quantization, context windows, and API cost vs. self-hosting.

wise.com

Wise provides international money services and a public currency converter with mid-market rates and historical charts. ([wise.com](https://wise.com/us/currency-converter/aud-to-nzd-rate?utm_source=openai))

wishastro.com

Free Vedic and Western astrology birth chart calculator with detailed planetary analysis.

wonsulting.com

Wonsulting (ResumAI) is a platform for AI-driven tools designed to enhance productivity and decision-making processes. Their sample tool, Before/After Transformer, offers users an interactive way to compare and analyze data visually.

wordcheckr.com

English Scrabble word checker for validating playable words and browsing word lists by length and ending.

workchoose.com

Free online calculators and planning tools for workspace and home office setup.

workingdayscalc.com

Free business day calculators that account for weekends and public holidays across 100+ countries.

workroomcalc.co.uk

Free UK workroom calculator for planning roman blind fabrics, linings, rods and cords.

gold.org

World Gold Council offers research and tools for portfolio analysis that include gold as an asset class. ([gold.org](https://www.gold.org/goldhub/portfolio-tools/simulator?utm_source=openai))

worldtimebuddy.com

worldtimebuddy.com hosts a time zone converter tool that allows users to check the current time in different parts of the world, such as Bangkok's current time now.

worldtimeserver.com

WorldTimeServer.com hosts a suite of time-related tools, offering current timestamps and time zone conversions for various locations around the world. Examples include showing BST time now and Bangkok time now.

wutools.com

WuTools is a website that offers various useful tools for users. One of its sample tools is an Audio Sample Rate Frequency Converter, which allows you to change the sample rate and frequency of audio files.

wurkn.com

HR-focused site that provides a free attrition calculator for estimating turnover impacts. ([wurkn.com](https://wurkn.com/attrition-calculator/?utm_source=openai))

wysibb.com

WysiBB is a long-running WYSIWYG BBCode editor project designed for forums and web apps.

x-rates.com

X-Rates provides exchange rate tools including calculators, tables, and charts for major currency pairs. ([x-rates.com](https://www.x-rates.com/calculator/?amount=1&from=AUD&to=NZD&utm_source=openai))

x10tools.com

xconvert.com

XConvert is a multi-format file conversion service covering images, video, audio, PDFs, and developer-friendly utilities like hash and base conversion.

xfreetool.com

yangtool.com

yangtool.com hosts Bend Allowance Calculator, a practical tool for engineers and fabricators to calculate bend allowance in metal sheets.

yardmaterialtools.com

Free calculators for estimating yard landscaping materials like gravel, mulch, topsoil, and sod.

yescalculator.com

yescalculator.com hosts a Bearing to Azimuth Angle Converter tool for converting bearing angles to azimuth angles in navigation and surveying.