In this list, we have compiled for you the tools for Price/Stock Tracking and Notification (Alarm) that you can access for free or as open-source in 2026. Price tracking, stock tracking, and notification (Alarm) tools are actually more advanced versions of change monitoring tools, which check for changes on a page and notify you when a change occurs. You mark and save the change you want to track on a page, and then you receive a notification when a change occurs. Price and Stock tracking / Alarm tools are customized for these needs.
Price changes seriously complicate the decision-making processes for consumers and businesses. According to a recent study, 60% of global consumers stated that price and stock alerts significantly improved their shopping experience. This is a clear indication that it has become a fundamental expectation of the digital age, rather than just a convenience. This expectation is not limited to individual buyers. More than 2 million businesses in the retail sector actively use digital stock and price tracking systems. A wide audience, from individual buyers who want to catch campaigns to small businesses that monitor competitor prices, and even health professionals who track the stock of medical products, needs proactive monitoring.
In this article, we will examine the best price and stock tracking tools of 2026, tailored to this very need. Our goal is to help you find the right solution to protect your budget and ensure you don't miss any opportunities, whether you are an individual buyer or an e-commerce seller.
RobotAlp – Web Monitoring and Stock Tracking Tool
RobotAlp is a comprehensive platform that can perform product-based monitoring on e-commerce sites all over the world, meeting the needs of both individual users and professionals.
- Scope: It can perform product-based monitoring on e-commerce sites all over the world.
- Features: It sends notifications for stock changes, price drops, and when a product comes back in stock.
- Working Principle: It controls the targeted area by monitoring web page changes or with special element selection.
- Notification: It offers support for email, Telegram, browser notifications, and webhooks.
- User Type: It is ideal for global deal hunters, dropshippers, collectors, and software developers.
Keepa (Amazon Price Tracker)
It is one of the most popular price tracking tools developed exclusively for Amazon. As a browser extension, it shows the entire price history of every product page with detailed graphs. This way, you can easily tell if a price is truly on sale. It sends you notifications via email or browser when the price drops below your set threshold, helping you shop at the most opportune time.
- What it does: It shows the entire price history of products on the Amazon marketplace with graphs. It notifies you via email and browser notification when it drops below your target price.
- Is it completely free?: Basic price tracking is free. A paid plan is required for advanced reporting, detailed price analysis, and some additional features.
- Pros: Very detailed price history, support for multiple Amazon countries, API, and app integration.
- Cons: May require a monthly fee for the full database and advanced analysis (around 19€).
CamelCamelCamel (Amazon Price History)
Just like Keepa, it tracks the price history of Amazon products and sends email notifications to users. In addition to price drops, it provides price history graphs that show the ideal time to buy the product at its lowest price.
- What it does: It turns the price history of Amazon products into simple graphs and instantly notifies you of price drops via email. It allows you to access the product's lowest price history.
- Is it completely free?: It is 100% free and funded by ads/affiliates.
- Pros: Very simple and fast to use, compatible with all Amazon sites, no fees.
- Cons: Limited to Amazon, no mobile app; the data is not as detailed as Keepa's.
Honey (Browser Extension)
Note: Honey is now fully integrated into the PayPal ecosystem, and in 2026 it has faced increased criticism around data privacy. While it remains free to use, it’s fair to treat it as a “free in exchange for your data” type of product.
This popular extension not only tracks prices but also automatically finds and applies available discount coupons for products in your shopping cart. Honey also alerts you when the price of a product you're following drops. This way, you find the best price and get extra savings.
- What it does: It automatically finds price drops and available discount coupons on many online retailers like Amazon, Walmart, and AliExpress ; it allows you to apply them to your cart.
- Is it completely free?: Yes, the browser extension and platform are completely free.
- Pros: Coupon and discount integration, community-based best price drop notifications, multi-store support ; shopping reward point system ("Honey Gold").
- Cons: No stock tracking; for some users, integration with the shopping cart can be complicated.
Flipshope (Browser Extension)
This tool, particularly popular in the Indian market, tracks price drops and stock status on many different e-commerce sites. It offers users features like price history graphs, stock alerts, and automatic coupon application to enhance the smart shopping experience.
- What it does: It tracks price and stock on global and India-specific sites like Amazon, Flipkart, and Myntra ; it provides price history, stock alarms, and coupon integration.
- Is it completely free?: The extension is free.
- Pros: Wide site support, stock alert features, bulk product tracking, automatic coupon finding.
- Cons: The most advanced features are for the Indian market; the interface may be complex for some users.
Open-Source and Technical Solutions
Open-source tools that offer full control and customization are also available for software developers or users with technical knowledge. These solutions require flexibility and coding skills.
Why Go Open-Source in 2026? "The primary advantage of open-source tools like Changedetection.io or urlwatch is privacy and frequency. Unlike cloud-based tools that may limit you to checking once an hour on a free plan, self-hosted tools can check as often as every minute, giving you a massive advantage in 'Flash Sales' or limited-stock drops.
Changedetection.io
In 2026, Changedetection.io has become the go-to self-hosted solution for tracking price and stock changes. It provides a clean web interface, supports visual selectors, and can even handle JavaScript-heavy sites using Playwright/Selenium. It integrates with over 70 notification services via Apprise (Telegram, Discord, Slack, etc.).
StreetMerchant (Best for Tech/Hardware Enthusiasts)
If you are looking for high-demand electronics like GPUs or gaming consoles, StreetMerchant is a powerful open-source 'bot' written in TypeScript. It doesn't just check pages; it simulates real user behavior to bypass bot protections on sites like Amazon, BestBuy, and Newegg. It's a command-line tool, but it's incredibly effective for high-frequency tracking.
Huginn (The 'Open-Source Yahoo Pipes')
For users who want to build complex automation, Huginn is a system for creating agents that perform online tasks for you. It can read the web, watch for events, and take actions. While it has a steeper learning curve, it offers the most customization for advanced users who want to build their own private monitoring empire.
URLWatcher (Open-Source)
It is a lightweight and powerful command-line tool written in Python. It uses a text file of URLs to automatically check for changes on different sites. Developers can integrate this tool into their own scripts to automate specific tasks like stock tracking.
Watchtower (Open-Source Web Monitoring Tool)
It is a web monitoring tool that stands out for its flexibility. Users can define rules to track specific HTML elements. It has Python or Node.js-based versions and can send notifications via email or webhook. It is ideal for developers who want full control by setting up their own server.
These were the price and stock tracking and notification (Alarm) tools we examined and compiled for the year 2026. If you also have tool suggestions in this category that you use and that are waiting to be discovered, you can contact me.
