About ThaiTools

Last updated: 2 September 2026

What is ThaiTools

ThaiTools is a collection of 50+ free online calculators and utilities used in everyday Thai life — age, BMI, loan interest, income tax, hourly-rate salary, Base64, QR codes and more. Everything is free, with no sign-up and nothing to install.

Our principles

• Privacy first — every tool runs entirely in your browser; what you type never reaches our servers.
• Always free — no paywalls, no trials.
• Thai context first — units, tax brackets and examples are written for Thailand, not translated.
• Explain clearly — every tool comes with a guide and formulas, not just a number.

Who builds and maintains it

ThaiTools is built and maintained by Webpanna Studio, a web development and digital services team for SMEs and restaurants in Thailand. ThaiTools started as a community service project born from that work; ad revenue on the site covers hosting and the development of new tools.

Want a new tool

We add tools based on user requests — reach the team on LINE or see all channels on our Contact page.