Steam blocks browsers from calling its API directly, so nothing here can log into your account, which also means nothing here can leak it. Fetch the JSON yourself and paste it in:
1. Get a key at steamcommunity.com/dev/apikey 2. Open: api.steampowered.com/IPlayerService/GetOwnedGames/v1/?key=YOURKEY&steamid=YOURID&include_appinfo=1&include_played_free_games=1 3. Copy the whole page, paste below.
Or paste plain lines instead: Title, 2y, 0.4 (title, owned, hours played), one per line, and it works for any platform.
Unplayed and barely-played Steam titles are kept; anything over 20 hours is treated as played and left out of the pile. Steam's list does not say when you bought anything, so the owned column comes in as unknown and you can fill it in. Your key is never typed into this page and nothing is uploaded anywhere.