VYZIOTEK
We like building useful and fun tools — and providing them for free, in websites anyone can open in a browser.
About Vyziotek
Useful tools. Fun tools. Free tools.
Vyziotek is the home of a growing family of websites built around one simple idea: the everyday things people look up online — a word count, a unit conversion, the weather in three cities, the time in Tokyo, the calories in a chickpea — should be quick, clear and free.
Every site works right in your browser, with no account to create and nothing to install. And when it's time for a break, there's a game waiting for you too.
Useful
Practical tools for text, numbers, units, time, weather, countries and food.
Fun
Easy browser games for a quick, relaxing break — on phone or computer.
Free
No sign-up, no download, no paywall. Open a site and start using it.
Our network
Eight free websites, one family
Pick a tool and get going — every site is free, fast and works without an account.
Hoyooken
Easy games, free to play: mahjong, solitaire, sudoku, snake, 2048, mazes and more — right in your browser.
Play now →CoolTexTool
14 free text tools — case converter, word counter, Morse code, password generator and more. Your text never leaves your device.
Visit site →elCalculador
Calculate anything — financial calculators, math tools, BMI and everyday number helpers.
Visit site →SamemaS
Convert units of all kinds — length, weight, temperature, volume, speed and more.
Visit site →SunorSnow
Live weather for up to six cities side by side, plus climate guides for 30 world cities in five languages.
Visit site →TimeAndCal
Check the time anywhere — world clocks, time zones and calendars in one place.
Visit site →Beelad
Facts on every country — flags, capitals, populations, currencies and more.
Visit site →YummyMetrics
Calories and nutrition facts for 2,000+ ingredients from USDA data. Paste a recipe, get nutrition per serving.
Visit site →The creator
Meet Cecile Ancieux
The person behind the tools, the guides and the code across the Vyziotek network.
Cecile Ancieux
Creator · Senior Web Developer & Data Privacy Advocate
Cecile is a software engineer with over a decade of experience building client-side JavaScript applications and open-source utilities. That experience shapes every Vyziotek site: tools that run in your own browser, keep your data on your device, and don't ask you to sign up for anything.
Cecile built CoolTexTool to offer secure, zero-tracking text utilities, and writes and edits SunorSnow's climate guides, weather explainers and articles — checking figures against published climate data and keeping the translated editions up to date.
Contact us
Say hello
Questions, ideas for a new tool, partnership enquiries or feedback on one of our sites — we'd love to hear from you.
info@vyziotek.com