Based on our record, Keepa seems to be a lot more popular than Chart.js. While we know about 80 links to Keepa, we've tracked only 1 mention of Chart.js. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Https://chartjs.org works well, but you have to call the update function yourself if you want to do some reactive updates. Source: about 3 years ago
I also recommend checking amazon.co.jp out as you'll have the option for certain products to ship to a konbini closest to your lodgings for pick up (they e-mail you a QR/barcode and you show it to the attendant; if you miss the pick up, they automatically return and refund you). This is especially useful if you're short on time and will help you streamline your itinerary so you're not going super far out of your... Source: 7 months ago
When buying off Amazon, always use https://keepa.com/ to track the price and get the best deal. Always read the seller reviews (product reviews are usually fake and useless). Source: 7 months ago
PSA: You can use a tool like Keepa to view historic prices of items on Amazon. It's a browser extension that injects into Amazon's website underneath the initial product listing. Will show you normal prices, the used prices, if the price was a lightning deal (a la Prime Day etc). Source: 12 months ago
Keepa.com is actually better. I have been using camelcamelcamel for years, but it started to NOT show the correct historic for a few items. But the keepa extension solved it. Source: 12 months ago
Keepa.com is my go to site for price history. Source: 12 months ago
D3.js - D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
Highcharts - A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application
Savelist - Found products you want but not ready to buy?
Plotly - Low-Code Data Apps
PriceSpy - PriceSpy helps you save money when shopping online.