# Tools

Tools I built for library and Chinese studies work: LCSH subject-heading assistants, a Google Sheets template for LLM APIs, and an offline OCR app for Apple Silicon Macs.

Canonical: https://www.kwokleongtang.net/tools/
Source: https://www.kwokleongtang.net/tools/index.md

Here are some tools that I built.

| Tool | Description |
|---|---|
| [LCSH Tools](/tools/lcsh-tools.html) | AI-powered tools for generating, validating, and exporting Library of Congress Subject Headings (LCSH) as MARC records. |
| [LCSH Recommendation Tool - Chrome Extension](/tools/2025_03_lcsh_browser_extension/lcsh_browser_extension.html) | A browser extension that suggests Library of Congress Subject Headings based on bibliographic information using the Gemini API, with instructions for installing and using it. |
| [Google Sheet with LLM API](/tools/google-sheet-with-llm-api.html) | A Google Sheets template that sends prompts to large language models and returns the responses inside the spreadsheet. |
| [gaaucau quick OCR](/gaaucau-quick-ocr/) | Offline OCR for scanned PDFs and page images on Apple Silicon Macs, powered by PaddleOCR. |

## Bookmarks

| title | url | note | tags |
| --- | --- | --- | --- |
| Hugo documentation | https://gohugo.io/documentation/ | Reference for the static site generator behind this site. | hugo, docs |
| Pagefind | https://pagefind.app/ | Static search library planned for the site search. | search, static-site |