LaunchDarkly

LaunchDarkly exported Facebook's feature-flag tool to every SaaS

Facebook built an internal feature-flag system to roll features out to 1% of users, then ramp. Ex-Facebook people spun this out as LaunchDarkly and sold it to every small company that could never afford to build it themselves, raising over $50 million.

“And so LaunchDarkly was like, you know, a couple of ex-Facebook people spun out and they're like, hey, whatever— I forgot the internal name of that tool at Facebook. It's like, let's call it whatever, codename Medallion. It's like, oh, we're taking Medallion and we're making it available to every SaaS company that exists. And these guys have crushed it. They've raised over $50 million”