hi ArtifexDominus.8675,
This little tool may fit your needs: https://etblue.github.io/gw2inventory/
Submit your API key (with account, inventories, characters, wallet, builds, guilds permissions) and then bookmark the page, then you will be able to access your characters anytime you want.
But beware, if you share the bookmarked url with your friends, you are sharing your API key with them, too.