About Us

We aim to provide simple, useful, free online tools. We believe great tools should not require sign-up, should not be cluttered with distractions, and should not collect your personal data.

Our principles

Privacy first: all calculations run in your browser; your input is never uploaded to a server.
Free and no sign-up: every tool can be used directly.
Always growing: we keep adding more useful tools.

Available tools

Age Calculator — Enter your birth date to instantly get your exact age, total days, zodiac sign, Chinese zodiac and a countdown to your next birthday.
Chinese Number Converter — Convert Arabic numerals to formal Chinese characters, lowercase Chinese and TWD amount text — handy for cheques and contracts.
Spin the Wheel — Add items and set their weights, then spin the lucky wheel to draw a random result — great for raffles, grouping and decisions.
Pomodoro Timer — A focus-and-break timer with customizable lengths that automatically cycles short and long breaks.
QR Code Generator — Turn a URL or text into a QR code instantly, choose the error-correction level and colors, and download as PNG or SVG.
Date Calculator — Find the span between two dates, or add/subtract days, weeks and months from a date to get a new date.
Time Zone Converter — Convert a time between regions and instantly see the local time and day difference in Taipei, Tokyo, London, New York and more.
Roman Numeral Converter — Convert between Arabic and Roman numerals both ways for values from 1 to 3999, with subtractive notation and standard-form validation.
Unit Converter — Instantly convert length, weight, area, energy and data-storage units — metric, imperial and Taiwanese units, plus kWh, GB/GiB and more — and see every unit at once.
Amount to English Words — Convert numbers into English amount in words for cheques and invoices — DOLLARS and CENTS ONLY, plus plain number words.
Special Symbols — Hundreds of special symbols and characters — stars, hearts, arrows, math, currency, Greek letters and more. Click any symbol to copy it.
World Clock — See the current local time in major cities worldwide — Taipei, Tokyo, London, New York and more — updating every second, in 12- or 24-hour format.
BMI Calculator — Enter your height and weight to instantly get your BMI and WHO weight category, plus your healthy weight range. Supports metric and imperial units.
Screen Test Tool — A free online screen test tool that thoroughly checks phones, tablets, monitors and TVs for dead pixels, burn-in, stuck (bright) pixels and other defects — essential when buying new or used devices.
Shoe Size Converter — International men’s and women’s shoe size conversion: US, UK, EU, Japan (cm) and foot length in cm/inches at a glance — never order the wrong size when shopping abroad.
Image Cropper — A free online image cropper: upload a photo, freely drag to crop or pick a 1:1, 4:3 or 16:9 ratio, then download as PNG or JPEG. Everything runs in your browser — your image is never uploaded.
Photo Censor — A free online photo censor: upload an image, select an area and hide private details (faces, plates, addresses) with a mosaic or solid block, then download. Everything runs in your browser — nothing is uploaded.
Image Resizer — A free online image resizer: upload an image, enter a width and height to resize it (optionally locking the aspect ratio), then download as PNG or JPEG. Everything runs in your browser — nothing is uploaded.
Image Color Picker — A free online image color picker: upload an image, move your cursor to preview colors and click to pick, getting HEX, RGB and HSL codes to copy in one click. Everything runs in your browser — nothing is uploaded.
Traditional ⇄ Simplified Chinese — A free online Chinese converter: paste text to convert between Traditional and Simplified Chinese, optionally using Taiwan-preferred vocabulary (軟體, 網路), with one-click copy. Everything runs in your browser — nothing is uploaded.
Image Color Extractor — A free online image color extractor: upload an image and it automatically analyses it and pulls out a dominant color palette — with HEX, RGB and HSL codes plus each color’s share, ready to copy in one click. Everything runs in your browser — nothing is uploaded.
Split & Merge PDF — A free online PDF splitter and merger: upload a PDF to extract specific pages (split), or combine several PDFs into one file, then download. Everything runs in your browser — your files are never uploaded.

Contact Us

If you have any suggestions, want to request a new tool, or found a problem, feel free to email us:

Email: support@toodock.com

We'll get back to you as soon as we can. Thanks for using and supporting us!