Site Introduction
yxtfkj.cn is a free online toolbox operated by an individual developer. Our goal is to deliver simple, fast and secure web utilities, so users can finish image editing, document conversion, text formatting and development debugging tasks without downloading desktop software.
Nearly all tools execute computation locally within your browser. Images and text data stay on your device instead of being transmitted to our backend server, which protects user privacy. No mandatory account registration and no pop‑up advertisements.
Our tool collection covers image processing, PDF manipulation, JSON formatter, encoding conversion, password generator, regex tester, HTTP debugger and sitemap generator. Whether you are handling office materials or debugging web projects, you can find helpful utilities here.
We keep improving existing functions and adding new tools. If you encounter bugs or feature suggestions, please reach out via our contact page.
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