goimports handles imports as well as gofmt-style formatting: it can add imports needed by referenced names and remove imports the file no longer uses. gofumpt applies stricter formatting rules while remaining compatible with gofmt; it is not an import manager. Use them together when you want both behaviors, with import organization and formatting configured as separate tasks.
goimports vs gofumpt: what each tool does
| Area | goimports | gofumpt |
|---|---|---|
| Main job | Formats Go source in gofmt style and manages imports. | Applies stricter formatting rules in the gofmt family. |
| Imports | Adds missing imports, removes unused imports, and can group imports by local prefixes. | Does not provide goimports-style import management; use an editor or language-server action, or run goimports separately. |
| Formatting | Uses gofmt-style formatting. | Accepts a subset of the formats gofmt accepts; running gofmt after gofumpt should not change the file. |
| Typical use | Standalone command or import-organization workflow. | Drop-in gofmt replacement or alternative formatter in gopls. |
| Trade-off | Convenient import cleanup, but import suggestions depend on project and workspace context. | More opinionated consistency, which can rewrite existing code to match its rules. |
In short, goimports answers which imports belong in a file; gofumpt checks whether its formatting follows a stricter style. See the goimports command documentation and the gofumpt project README.
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What stricter formatting changes look like
gofumpt tightens selected conventions rather than inventing a wholly separate formatting style. Its examples include removing redundant parentheses such as f((3)), combining adjacent parameters with the same type (for example, func Foo(bar, baz string)), and avoiding naked returns in functions with named return values. In multiline calls, it also requires a trailing comma and puts the closing parenthesis on its own line. These are tool-enforced conventions; whether a project wants them is a style choice.
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How gopls separates formatting and import organization
With gopls, formatting and import organization are separate operations. Formatting uses gofmt by default; its gofumpt setting selects gofumpt as the formatter. Import cleanup and additions are exposed as the source.organizeImports code action. That action sorts imports, removes duplicates and unused imports, and can add imports for undefined names. The gopls transformation documentation notes that import additions use workspace and GOMODCACHE heuristics, so suggestions can sometimes be surprising.
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How to use gofumpt if you already use goimports
Keep import management and formatting as two steps. The gofumpt project recommends letting the editor or gopls manage imports, then enabling gofumpt for formatting. For a direct command-line workflow, run:
goimports file.go && gofumpt file.goThis runs import organization and gofmt-style formatting first, then applies gofumpt’s stricter rules. Running goimports from scratch on every save can add overhead, so editor-based organize-imports actions may suit save-time use better.
Which workflow should you choose?
- Choose goimports alone when you want one command or save hook to format in gofmt style and keep imports aligned with the file’s references.
- Choose gofumpt alone when your project has adopted stricter formatting and handles imports separately.
- Combine them when you want stricter formatting plus automatic import maintenance. Configure organization and formatting separately in the editor, or run goimports before gofumpt.
- Pin versions in CI and developer tooling when reproducible formatting matters; check the selected release’s Go requirement during upgrades.
Version and Go compatibility
Version details change. As checked on October 4, 2026, pkg.go.dev listed golang.org/x/tools v0.51.0, published October 2, 2026; that package listing is not a recommendation to install @latest without considering project pinning. The gofumpt README identified Go 1.27.0 as its current fork base and said the current tool requires Go 1.26 or later. Check the exact release requirements before adopting gofumpt in a project on an older Go toolchain. The project recommends pinning versions for stable behavior. Sources: goimports package page and gofumpt README.
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