Atom

If you’re using Atom you have a bunch of options to integrate Flow into your code base.

Nuclide

apm install nuclide

Nuclide is a full IDE created by people at Facebook that has support for Flow built-in. It provides a linter, autocomplete and type coverage support, click-to-definition and type description on hover.

However, it currently lacks support for on-the-fly type-checking (showing your type errors before you save your file).

Nuclide also comes with many other features including support for remote projects, hack, mercurial etc.

Flow-IDE

apm install flow-ide

Flow-IDE is a smaller package that only provides you with a linter and autocomplete functionality. It, too, currently lacks support for on-the-fly linting.

Linter-Flow

apm install linter-flow

In case you’re looking for something even more minimal, linter-flow may be worth your attention. It only lints your code and provides no other features, but it does support on-the-fly linting.

Autocomplete-Flow

apm install autocomplete-flow

autocomplete-flow is another purpose-built tool that only does one thing. This package, as the name suggests, will give your flow enabled code autocomplete suggestions and nothing else.