LiteVault
Web wallet made by Someguy123 (a real dev) but the code itself has not been updated in 6 years (github link below).
Never used the service, have always been wary of web wallets, so would add this to the list. That said someguy123 has been and continues to do amazing dev work for LTC and I trust the intention was right at the time of releasing this service.
Would be awesome if we could give some feedback from @someguy123 as I am curious as to the state of the service and the website https://www.litevault.net/
Github code repository: GitHub - Someguy123/LiteVault: LiteVault - Secure Online Litecoin Wallet https://www.litevault.net
Edit: two typos