I built a simple tool to compare hard drive and SSD prices by price-per-terabyte.

I kept having to calculate $/TB manually when shopping for NAS drives, so I made this to save myself the trouble.

It pulls prices from Amazon (US, CA, AU, and EU stores), calculates $/TB, and lets you filter by drive type, interface, form factor, and capacity.

Nothing fancy — just a sortable table updated daily.

Any feedback is more than welcome, I hope someone will find it useful!

Comments

superkuh•1h ago

If only you had known about diskprices.com you could've saved yourself the trouble.

vektor888•1h ago

Oh well... nevertheless, it was a fun project to work on, and it still is!

I am planning to add some aggregated statistics (e.g. price trends by brand/category)

superkuh•1h ago

I guess you didn't read the amazon tos then. Price trends and history is not allowed.

vektor888•1h ago

Not for this specific use case.

Are platforms like Keepa violating Amazon's ToS then?

superkuh•45m ago

Ah, from the wording ("pull") I assumed you were using the API. You use your own user-agent to access the site(s) and collect prices then? Do you have any trouble getting blocked doing that? Is it some headless chrome controlled programatically?

vektor888•37m ago

I have another site that made some qualified sales, so I can use the APIs.

I also played a bit with scraping, and you can do that quite easily, but if you want to do it at some scale, you need lots of proxies, and quite soon it gets slow and overkill

dewey•1h ago

ToS are not enforceable if you don't use an official product feed from Amazon in this case. As shown by thousands of companies providing exactly this service for competitor analysis.

baal80spam•1h ago

Or just quickly pivot to RAM prices!

ZeWaka•18m ago

diskprices supports RAM as well :)

goda90•1h ago

The prices don't seem accurate on the ones I checked. Maybe they were a few months ago, but there's been a lot of stock shortages, especially for larger HDDs, and it's been driving up prices.

vektor888•1h ago

Thanks for the input!

This should be the price as shown in the product listings for the category. Perhaps, depending on product availability, you are shown different prices on the product page.

I will take a better look into this, but I can confirm that this data is very recent (about 4-5 hours ago), definitely not months old

BrandoElFollito•1h ago

At least for France prices are wildly innacurate. The actual ones are 150 to 200% the price on the table.

I checked 6 to 8 TB HDDs.

vektor888•1h ago

Thanks for the feedback!

These prices are 5-6 hours old. While working on this site, I noticed that Amazon pricing can be very dynamic.

Moreover, it could be that Amazon is returning the retail price, but because of current availability, once you land on the product page, you are shown prices from a different seller

thehias•1h ago

Every price i checked on Amazon.de was wrong on your website, this is totally useless! Often the real price is like 300% higher

vektor888•1h ago

Thanks for the input!

As I mentioned to other users, Amazon's pricing seems to be quite dynamic. This data is just 4-5 hours old, but it already seems quite stale.

Note taken that it should be updated more frequently!

alexfoo•51m ago

Feedback:

Interesting. Glad there was a drop down to pick a bunch of different sources. I was expecting it to be US central but was happy when I saw I could search for amazon.co.uk

An ability to search for NAS drives, even if it's just a substring search within the product name, would be great.

Also a search on drive speed. I'm not interested in 5400rpm drives, only 7200rpm+.

(I'm looking for a bunch of 7200rpm drives that are NAS rated, so I'm not interested in generic consumer grade 5400rpm drives right now.)

vektor888•36m ago

Thanks for your input!

Adding a filter on drive speed is definitely feasible. I will add it as soon as possible

ImPostingOnHN•32m ago

https://diskprices.com/ has always served me well

dcdc123•29m ago

https://pricepergig.com/ is another one. Found that on r/datahoarder

vektor888•23m ago

This also looks interesting, thanks!

vektor888•26m ago

Yes, I guess I should have done some more due diligence before reinventing the wheel...

Hopefully, I will find some ways to differentiate. Something I don't see there is a filter by brand or a text search across all fields. I was planning to add these in a next iteration

dfc•12m ago

Ways to differentiate: On your site I can click the column heading to change the sorting.

I'm a little surprised someone said disk prices was the best option. Changing the sort by column seems like bare minimum UI feature in 202X.

endgame•20m ago

The best-designed website on the internet.

zahlman•4m ago

I had heard that relatively high capacity tape storage was still a thing, but I didn't realize it was a thing to this extent.

ponytech•28m ago

How is it different from https://diskprices.com/ ?

vektor888•25m ago

Many users are pointing out that the concept is very similar.

The product listings are perhaps different?

Imustaskforhelp•25m ago

Anything like this for the Indian market as well? I tried diskprices,terabytedeals & pricepergig (currently the only 3 websites mentioned right now in comments/main post show hn itself) and none of them support Indian services.

If someone does support Indian markets, I have a minor suggestion to include both Amazon and flipkart.

I would honestly really appreciate a quick website I can point out to in my local community so vektor if possible, can you please add it?

What are your thoughts on it?

TacoCommander•23m ago

I haven't needed to buy a spinning hard drive in about 5 years. I have no idea how to choose one any more. There are so many variations. Red, Purple, Blue, Gaming, Enterprise, Business.

I just want to store some files.

pants2•5m ago

Easy. What color are your files? Get a hard drive with a matching color otherwise your files will turn brown

SuperKlaus•16m ago

I filtered for ssd only, minimum 2tb, top 5 prices are wrong or the product is not available on Amazon US

fp.

Show HN: TerabyteDeals – Compare storage prices by $/TB

Comments