About Us
Polarsite Toolkit is an open-source, secure, and private collection of browser-based tools, independently maintained by individual developers.
Our Philosophy
In an era of frequent data breaches, we believe: Your files should belong only to you.
Therefore, we adhere to the "zero server dependency" principle—all operations, including file conversion, renaming, data cleaning, and signing, are completed directly in your browser. Your data never leaves your device.
Current Features
- ✅ PDF Tools: Convert Markdown/TXT/HTML to PDF, Apply E-Signatures.
- ✅ File Management: Batch Renaming, Image Watermark Removal.
- ✅ Data Processing: Local CSV/Excel Data Viewer and Processor.
- ✅ Pure front-end implementation, no backend service.
- ✅ Auto multi-language, dark/light theme adaptive.
- ✅ Open source and auditable (GitHub)
Contact Us
Feel free to communicate via:
- 📧 Email: [email protected]
- 💻 Source Code: github.com/kayyoung/polarsite