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TCG Hacker – One Piece & TCG Deals, Prices & ROI

By Intangible Assets, LLC.

Instantly see market prices, graded values, and investment scores for One Piece TCG cards while browsing eBay

View Chrome Web Store

Time on the storeUnder a yearA rough range, not an exact date

Store users112As shown on the Chrome Web Store

Chrome Web Store rating5.0 / 511 ratings on the Chrome Web Store

Last store update4 Sep 2026Version 2.2.19, 36 days ago

Inside the extension

TCG Hacker – One Piece & TCG Deals, Prices & ROI developer product preview 1

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Reviews

Aleyda Rodriguez2 months ago
My husband loves this tool. Says he's been able to grade his TCG before sending to PSA/BGS and happy with the resulting grades.
Jon Tavarez2 months ago
One Piece TCG is hard to keep up with and this makes it so much easier to compare pricing when looking at an ebay listing.
Maria De Moya2 months ago
Works great for researching good deals on One Piece TCG. Better than other tools I have tried.
Philips Abraham7 months ago
This extension is incredibly useful if you collect One Piece TCG cards. I often browse eBay looking for good deals, and TCG Hacker instantly shows the market value right on the listing page. The One Piece card detection works surprisingly well and helps me avoid overpaying. The deal rating feature is also great because it quickly tells you whether a listing is worth buying or not.
Duke Grayson7 months ago
Really handy! I enjoy the deal rating system and how it picks up different card variants (like SP and alt arts) directly in my browser. If the next update could add filters for certain rarity levels or languages, this would be even more powerful for collectors. Still a solid tool overall
Grace Campbell7 months ago
As someone who buys a lot of singles off eBay, I was tired of switching tabs and searching historical prices. With this extension installed, I immediately see the fair market price and deal rating without extra effort. It’s helped me catch listings that were way overpriced, and the graded value info gives extra clarity on worth. Highly recommend for serious buyers!
Aisha Lordy8 months ago
I love how TCG Hacker overlays real-time pricing and deal scores right on the page while I shop. The graded card values are especially useful for seeing what PSA or BGS cards are worth. Saves me so much time looking up prices manually.
Benjamin Hutch8 months ago
I’ve been collecting One Piece TCG cards for a while and this extension is a huge time-saver. It shows fair market prices and deal ratings directly on eBay listings without me having to open other tabs or apps. It’s simple but really effective for avoiding overpaying