Is there another tool where I could resend the transaction with a higher fee?
Normally when I send a transaction with a fee that low, I flag it with opt-in replace-by-fee. So if it gets stuck like this, I can re-broadcast with a higher fee to get it immediately confirmed. It looks like you didn't do that here.
I think Peter Todd released a tool called doublespend.py (a Python script) that allows you to quickly double spend low-fee transactions. I think it should be somewhere in here:
https://github.com/petertodd/replace-by-fee-toolsAlternatively, you can try pushing your transactions here:
https://pool.viabtc.com/tools/txaccelerator/https://confirmtx.com/