Kotlin/ktfmt

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A program that reformats Kotlin source code to comply with the common community standard for Kotlin code conventions.

Stars: 1.3k
Forks: 116
Open beginner issues: 0
Indexed issues: 31
Avg merge: 4d 10h
Merged PRs (30d): 15

Dominant language: Kotlin
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 18, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue help wanted

Beginner friendly Everything

Open All

31 open issues indexed

When formatting Open

kotlinlang-style

Difficulty 5/5 Over a week Newbie friendliness 45/100

Kotlin/ktfmt#702 · Opened Sep 15, 2026
[Meta] KotlinLang 1.0 style changes Open

kotlinlang-style

Difficulty 5/5 Over a week Newbie friendliness 25/100

Kotlin/ktfmt#697 · Opened Sep 10, 2026
Correctly handle indent for if/when conditions with line comments before them Open

bug

Kotlin/ktfmt#692 · 1 assignee · Opened Sep 4, 2026
Add ability to disable ktfmt for specific files via .editorconfig Open

enhancement

Kotlin/ktfmt#686 · 1 comment · 1 assignee · Opened Aug 31, 2026
Suggest using .git-blame-ignore-revs when adopting ktfmt Open

documentation

Difficulty 1/5 Under an hour Newbie friendliness 85/100

Kotlin/ktfmt#651 · 1 comment · Opened Jul 30, 2026
Preserving user-authored line breaks produces non-deterministic output for equivalent syntax trees Open

formatting-discussions

Difficulty 5/5 Over a week Newbie friendliness 35/100

Kotlin/ktfmt#638 · 1 comment · Opened Jun 30, 2026
Non-matching indent on method call followed by chained call Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

Kotlin/ktfmt#633 · 3 comments · 1 reaction · Opened Jun 24, 2026
Brackets are formatted in a weird way when followed by chained calls Open

Kotlin/ktfmt#631 · 4 comments · 1 assignee · Opened Jun 23, 2026
Low-hanging fruits in ktfmt performance Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Kotlin/ktfmt#619 · 3 comments · Opened May 30, 2026
ktfmt migration roadmap Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

Kotlin/ktfmt#616 · 4 comments · 59 reactions · Opened May 19, 2026
Consider allowing short argument list to stay on same line in single expression body Open

formatting-discussions

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Kotlin/ktfmt#590 · 2 comments · 4 reactions · Opened Jan 23, 2026
Strange formatting for lambda with chained function call Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

Kotlin/ktfmt#589 · 14 comments · 3 reactions · Opened Jan 23, 2026
Reformat before commit and partial reformat is not supported from IntelliJ plugin Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

Kotlin/ktfmt#573 · 2 comments · 5 reactions · Opened Nov 24, 2025
FR: Publish snapshots Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 52/100

Kotlin/ktfmt#542 · 3 comments · Opened May 18, 2025
Add support for tabs as indent Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Kotlin/ktfmt#540 · 3 comments · 3 reactions · Opened May 13, 2025
ktfmt invocation is not strictly idempotent (running it a second time gives a different result) Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Kotlin/ktfmt#521 · 1 comment · 5 reactions · Opened Nov 14, 2024
Adding a space before a comment makes method chaining appear as multi-line in Gradle Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

Kotlin/ktfmt#517 · Opened Sep 23, 2024
Managed Trailing Commas & Enums Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Kotlin/ktfmt#514 · 2 comments · 5 reactions · Opened Sep 5, 2024
Google style with trailing comma does not use maxWidth correctly Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Kotlin/ktfmt#472 · 8 comments · 1 reaction · Opened Jun 4, 2024
Weird lambda formatting when wrapping long line Open

formatting-discussions

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Kotlin/ktfmt#454 · 3 comments · Opened Apr 9, 2024
Annotation location on properties Open

formatting-discussions

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Kotlin/ktfmt#409 · 1 comment · 5 reactions · Opened Jul 7, 2023
Formatting of field annotations is inconsistent with GJF Open

formatting-discussions

Difficulty 5/5 Over a week Newbie friendliness 35/100

Kotlin/ktfmt#316 · 2 comments · 4 reactions · Opened May 2, 2022
ktfmt rearranges comments on top of imports statements Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Kotlin/ktfmt#300 · 13 comments · 1 reaction · Opened Mar 17, 2022
Sort modifiers based on Kotlin conventions Open

enhancement good first issue

Difficulty 3/5 1-2 days Newbie friendliness 48/100

Kotlin/ktfmt#293 · 2 comments · 1 reaction · Opened Feb 23, 2022
Does not break at higher syntactic level Open

enhancement help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Kotlin/ktfmt#257 · 1 comment · Opened Nov 16, 2021
Short implementations of functional interfaces could be on a single line Open

enhancement good first issue

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Kotlin/ktfmt#253 · 2 comments · 2 reactions · Opened Oct 13, 2021
>1 annotation is kept on same line, contrary to style guide Open

enhancement formatting-discussions

Difficulty 3/5 1-2 days Newbie friendliness 42/100

Kotlin/ktfmt#226 · 13 comments · 28 reactions · Opened May 3, 2021
Not breaking at highest syntactic level Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 38/100

Kotlin/ktfmt#220 · 2 comments · 2 reactions · Opened Apr 29, 2021
Feature request: Automatic breaking of very long strings Open

enhancement formatting-discussions

Difficulty 5/5 Over a week Newbie friendliness 45/100

Kotlin/ktfmt#219 · 2 comments · 2 reactions · Opened Apr 29, 2021
Line break in chevrons when it can be in a dot Open

enhancement help wanted

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Kotlin/ktfmt#207 · Opened Apr 9, 2021
Kotlin DSL formatting looks messy Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

Kotlin/ktfmt#206 · 8 comments · 2 reactions · Opened Apr 8, 2021

Kotlin/ktfmt

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