Brahe Labs
Brahe Labs builds Vetra, a tool for comparing award flights and cash fares using the points you already have.
Vetra considers your balances, taxes and fees, eligible transfer paths, and the booking steps for one-way, round-trip and multi-city travel. It can combine points and cash across a whole trip.
Vetra is free during beta. An account is required to search, and you can enter balances manually.