About Dogu Expedition
A collection of free web tools that run right in your browser, with nothing to install.
What is Dogu Expedition?
Dogu Expedition is a web tool collection in the TAMHEOM series, run by KAMU Studio. From character counters and PDF merging to image conversion and date, finance and health calculators, 153 tools are organized into 15 regions (categories) so you can search for what you need or explore like a map.
Every tool is free, needs no sign-up, and is available in Korean, English, Japanese and Chinese.
Our principles
- Files and input are processed inside your browser. PDFs, images and videos are never uploaded to a server.
- Tools work the moment the page opens — no install, no login.
- Each tool comes with instructions, examples and FAQs.
- Calculators based on rules and rates are reviewed and updated regularly.
About results
Results from calculators and converters are for reference. For important decisions about taxes, loans or health, check with the relevant institution or a professional. If you find a wrong result, let us know and we'll fix it quickly.
Operator
Operated by KAMU Studio