The system would use a digital coin similar to bitcoin, but different in that Facebook would aim to keep the coin’s value stable, The Associated Press reported.
Bitcoin and similar cryptocurrencies have been susceptible to wild fluctuations in value.
It could reportedly undermine credit cards by sidestepping the processing fees that generate much of their revenue.
The Journal report cited unidentified people familiar with the matter. It said Facebook is recruiting dozens of financial firms and online merchants to launch the network. Facebook’s plans may include ways to financially reward users who interact with ads or other features.
Facebook said only that it is exploring many different applications for cryptocurrency technology.