Who runs this site
This site is operated by SpaceNode Co., Ltd., a company based in Seongnam, South Korea, that develops iPhone and iPad apps including QR Code & Barcode Scanner, PDF Reader Pro, Scanner, Smart Printer, LED Banner, GIFFF and Currency.
What the tools are for
While building our apps we kept running into small jobs that people need often but that don't justify installing an app: counting characters, converting units, turning images into PDFs, working out a percentage or a date. We publish free tools for those jobs that work instantly in the browser, with no sign-up and no install.
Each tool page explains how to use it, shows the formula or method behind the result and answers common questions, so you can check the numbers yourself. Values that change every year, such as tax rates, show the year they apply to and are updated from official sources.
Your data stays in your browser
Calculators, text tools and image/PDF tools process what you type and the files you choose locally in your browser. That content is not uploaded to our servers. The exceptions are:
- The currency converter requests current exchange rates (the amount you enter is not sent).
- The “What is my IP” tool asks an external service for your public IP address.
- Some tools download the code libraries and fonts they need from a public CDN.
For website analytics and advertising, see our privacy policy.
Company details
- Company
- SpaceNode Co., Ltd.
- Business registration no.
- 259-81-03383
- Address
- 13 Seohyeon-ro 180beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
- spacenode.min@gmail.com
Found a bug or have a suggestion? Contact us.