Cargo Features

[dependencies]
form_urlencoded = { version = "1.2.1", default-features = false, features = ["std", "alloc"] }
default = std

The std feature is set by default whenever form_urlencoded is added without default-features = false somewhere in the dependency tree.

std default = alloc

Enables std of percent-encoding

alloc std

Enables alloc of percent-encoding

form_urlencoded has 3 features without comments.