Script

This Tampermonkey/greasyfork user scripts adds a link on HarborFreight product page that gives you access to historical pricing.

/// ==UserScript==
// @name         Harbor Freight Price Tracker Link by Maggew.com
// @namespace    http://tampermonkey.net/
// @version      4.1
// @description  Add HF Price Tracker link to Harbor Freight product pages - Sponsored by Maggew.com 🤠
// @author       Maggew.com
// @match        https://www.harborfreight.com/*
// @grant        none
// @run-at       document-idle
// ==/UserScript==

(function() {
    'use strict';

    let lastUrl = location.href;

    function checkForProduct() {
        // Extract item ID from URL
        const urlMatch = window.location.pathname.match(/-(\d{5,})\.html$/);
        if (!urlMatch) return;

        const itemId = urlMatch[1];
        const trackerUrl = `https://hfpricetracker.com/tools/${itemId}`;

        let attempts = 0;

        function addBox() {
            attempts++;
            if (attempts > 20) return;

            // Already added?
            if (document.querySelector('.hf-price-tracker-box')) return;

            // Find the right column (where price is)
            const rightColumn = document.querySelector('.product__topRightWrap--KiINIB');
            if (!rightColumn) {
                setTimeout(addBox, 500);
                return;
            }

            // Create the white box
            const box = document.createElement('div');
            box.className = 'hf-price-tracker-box';
            box.style.cssText = `
                background: white;
                padding: 0px;
            `;

            const link = document.createElement('a');
            link.href = trackerUrl;
            link.target = '_blank';
            link.style.cssText = `
                display: flex;
                align-items: center;
                gap: 10px;
                color: #CD2215;
                text-decoration: none;
                font-size: 16px;
                font-weight: 600;
                padding: 15px;
                border: 3px dashed;
            `;

            link.innerHTML = `
                <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5">
                    <path d="M3 3v18h18"/>
                    <path d="M18 17l-5-5-4 4-6-6"/>
                </svg>
                <span>View Price History & Coupons</span>
                <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                    <path d="M5 12h14M12 5l7 7-7 7"/>
                </svg>
            `;

            link.onmouseenter = () => {
                link.style.color = '#b61e13';
            };
            link.onmouseleave = () => {
                link.style.color = '#e21d38';
            };

            box.appendChild(link);

            // Insert at the very top of the right column
            rightColumn.insertBefore(box, rightColumn.firstChild);
            console.log('HF Tracker: Added for item', itemId);
        }

        setTimeout(addBox, 1000);
    }

    // Run on initial load
    checkForProduct();

    // Watch for URL changes (for SPA navigation)
    const observer = new MutationObserver(() => {
        if (location.href !== lastUrl) {
            lastUrl = location.href;
            console.log('HF Tracker: URL changed, checking for product page...');
            checkForProduct();
        }
    });

    observer.observe(document.body, {
        childList: true,
        subtree: true
    });

})();

How it all started…

I seen a video on YouTube (linked at very bottom) about a review for a $135 Snap-On toolbox, versus the $12 HF Mini Steel Toolbox.

One thing led to another and now we've got price tracking locked in, which is great because I've always been a fan of buying stuff on amazon when the price is right (using CamelCamelCamel).

1. Visit HF – https://www.harborfreight.com/mini-steel-toolbox-black-72431.html
2. Click Button above the price – https://hfpricetracker.com/tools/72431
3. Look at price / coupon history chart
4. Decide if you want to purchase OR
5. Create a price alert for this tool

Misc

• Randy created a great project for everyone to benefit! THANKS RANDY!!
• Video comparing disgraceful Snap-On – https://www.youtube.com/watch?v=Qn07sChkxOA
• Featured Coupons – https://hfqpdb.com/
  • https://sr.ht/~trs-80/hf-price-check/
• https://www.reddit.com/r/harborfreight/comments/5q73i1/hf_price_tracking_ive_added_a_script_that_keeps/
• CCC Alternative – https://keepa.com/

Share (Please Ignore)

• https://greasyfork.org/en/scripts/new
• https://irate4x4.com/threads/price-trackers.406401/
• https://www.garagejournal.com/forum/forums/hot-deals.36/
• https://www.ar15.com/forums/General/Do-It-Yourself/139/
• https://www.reddit.com/r/harborfreight/submit
• https://www.reddit.com/r/harborfreightdeals/submit
• https://www.reddit.com/r/Tampermonkey/submit
• https://www.reddit.com/r/userscripts/submit