Relistly.io VS Cert Decoder

Relistly.io's answer

Relistly was built by a European reseller frustrated that every crosslisting tool was US-first — none reached Vinted, Vestiaire or the local EU classifieds where Europeans actually sell. So we built it Europe-first: list once, post across 18 marketplaces, in euros, with auto-delisting so nothing sells twice.

Cert Decoder's answer:

I built certdecoder.com over the weekend for my own needs. Sometimes in my work, I need to verify and check certificate details.

Relistly.io's answer

A Node.js/Express application with a PostgreSQL database, hosted in the EU. Crosslisting runs through the "Relistly Bridge" — a Manifest V3 browser extension that posts through the seller's own logged-in marketplace sessions — using official marketplace APIs where available (eBay, Etsy, Shopify) and session-based automation for the rest.

Cert Decoder's answer:

certdecoder.com was built using just JavaScript and HTML—simple, fast, and with all processing happening locally in your browser, so no certificate data is sent to any server

Relistly.io's answer

European online resellers — from side-hustle sellers to high-volume power sellers — who list fashion and second-hand goods across Vinted, Vestiaire, Depop, Grailed, eBay and the local EU classifieds and need one workflow to manage them all. Built for sellers in 24 European countries.

Cert Decoder's answer:

certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.

Relistly.io's answer

For a European reseller, Relistly reaches marketplaces the others can't — the local EU classifieds plus Vinted, Vestiaire and Grailed — priced in euros from €14/mo. Unlike Crosslist it accepts EU-resident sellers; unlike Vendoo it still crosslists to Vinted. It works through a browser extension using your own logged-in marketplace sessions (never your passwords), and auto-delists sold items so you never double-sell.

Cert Decoder's answer:

Simple, fast, and reliable. Some similar tools can’t even decode basic certificates. I rigorously tested my tool with many real-world certificates and covered several edge cases where competitors fall short.

Cert Decoder's answer:

certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.

Relistly.io's answer

Relistly is the only mainstream crosslister built Europe-first. It's the one tool that posts a single listing across the local EU classifieds — Marktplaats, Leboncoin, Kleinanzeigen, 2dehands and Vendora — alongside Vinted, Vestiaire Collective and Grailed, for 18 marketplaces in total, with auto-delisting, euro pricing and listing translation across 19 languages. Most crosslisters are US-first and skip the European marketplaces where our sellers actually list.