---
title: "Tools"
description: "Every tool on this site, what it does, and where it runs."
url: "https://ondelva.com/tools"
---

# Tools

- [Hot Deal Sheet](https://ondelva.com/tools/hotdealsheet): Hot deals from Korean communities, collected every few minutes and normalized into one clean, sortable sheet.
- [QR Code Generator](https://ondelva.com/tools/qr-code): Turn a link, Wi-Fi login, or contact card into a QR code without the data ever leaving your browser.
- [Fasting Tracker](https://ondelva.com/tools/fasting-tracker): A fasting notebook that tracks weight, blood pressure, heart rate and blood sugar, and says when a reading falls outside the usual range.
- [Snip](https://ondelva.com/tools/snip): Paste a long URL, get a short snipp.cc link back, with a key that lets you take it down later.
- [PDF Merger](https://ondelva.com/tools/merge-pdf): Join several PDFs into one file. The pages are copied in the tab in front of you, so nothing is uploaded.
- [PDF to PNG Converter](https://ondelva.com/tools/pdf-to-png): Turn the pages of a PDF into PNG images. The pages are drawn in the tab in front of you, so nothing is uploaded.
- [PDF Page Organizer](https://ondelva.com/tools/pdf-pages): Delete, rotate, reorder and extract pages from one PDF. The file is rewritten in the tab in front of you, so nothing is uploaded.
- [Image to PDF Converter](https://ondelva.com/tools/image-to-pdf): Turn photos and screenshots into one PDF. The pages are built in the tab in front of you, so nothing is uploaded.

---

Every page here is published as Markdown at its own path with `.md` appended; the front page
and the tool pages also answer `Accept: text/markdown`. Machine-readable entry points:
[llms.txt](https://ondelva.com/llms.txt),
[openapi.json](https://ondelva.com/openapi.json),
[sitemap.xml](https://ondelva.com/sitemap.xml),
[rss.xml](https://ondelva.com/rss.xml),
[search-index.json](https://ondelva.com/search-index.json),
[developer resources](https://ondelva.com/developers).