What BTSPACE WAGLE is
BTSPACE WAGLE is a free site that gathers small tools you use every day, such as a timer, calculators, generators and text and file utilities, so you can use them right in your browser with no installation. It started from the idea that installing a program or creating an account just to do one simple calculation or conversion is a hassle. So a tool should work as soon as the page opens, and leave nothing behind when you are done.
What tools are here
Tools are grouped by topic, and you can pick one from the topic menu at the top or the list on the left. Every tool has its own page, so you can bookmark the ones you use most.
- Time & Dates: a timer, world clock, meeting time finder, flight time, a D-day calculator, a satellite tracker and a jet lag planner
- Life & Health: eye exercises, an ambient sound mixer, a caffeine calculator, a Korean recycling guide, a color vision test, a Pomodoro timer, food calorie and BMI calculators, an MBTI-style personality quiz, a sleep cycle calculator, a plant watering calculator and a parcel box packing guide, a coffee and tea brew ratio calculator
- Calculators: average price, interest, VAT, hourly wage and holiday pay, marketplace margin, loan prepayment savings and overseas purchase duty and VAT, a paint, tile and wallpaper calculator
- Generators: passwords, QR codes, barcodes, icons, CSS shadow and glass effects, card news images and animated transparent subtitles, a pixel art maker, a neon sign and LED ticker maker and a halftone image converter
- Text & Dev: character counter, JSON ↔ CSV, AI token estimator, color contrast checker, typing speed test, password strength checker and a script breath marker, an ASCII art generator
- Files: image compression and resizing, PDF merge and split, and a mosaic and blur readability risk checker, a photo EXIF remover, a thumbnail and short-form safe zone preview and an audio waveform image maker
- Devices & Audio: a monitor test, a Morse code translator and player, an aim and reaction time test, and a tone generator with a hearing age test, a screen smudge check
New tools are added over time. You can see the full list on the home page.
Operating principles
- What you enter is never sent to a server and is processed only on the visitor's own device.
- It is free to use with no sign-up.
- Each tool explains how to use it, how it works and its limitations.
- Financial and health tools are for reference only and are not investment, tax or medical advice.
- The explanations are written by hand to match what each tool actually does, and updated whenever the tool changes.
How the tools are built
Every tool runs as JavaScript in your browser. Calculators describe the formulas they use in the explanation, so you can check how a result was reached. Tools that contain reference values that change every year, such as the Korean minimum wage and social insurance rates, are updated annually and show which year's values they use. Right after a rate changes there may be a delay, so for important decisions please also check the latest notice from the official agency.
Accuracy and limits
Results on BTSPACE WAGLE are estimates based on the values you enter. Figures that depend on personal circumstances, such as tax on interest, take-home pay or the amount of caffeine left in your body, can differ from reality. For decisions involving investment, tax, legal or medical matters, please put the advice of a professional or an official agency first.
Privacy and data
The numbers, text and files you enter into a tool are not sent to a server. Only display settings, such as your dark mode choice, may be stored in your browser. Details about ads and cookies are in the privacy policy.
About ads
To cover running costs, Google AdSense ads may be shown. Ads are placed where they do not get in the way of using the tools.
Reporting errors and suggestions
If you find a wrong calculation, something inconvenient, or a tool you would like added, please tell us on the contact page. Suggestions we receive help us decide what to improve and which tools to build next.