JetBrains/kotlin
JetBrains/kotlin has 2,554,676 source lines of code out of 5,863,475 total lines across 86,195 files, counted from the master ref at commit f63b9f344c0a by the OctoCounts tokei engine on 2026-10-22. The report is cached by commit, tokei version, and analysis options, so recounting the same revision returns exactly these numbers.
As of 2026-10-22 (commit f63b9f344c0a), JetBrains/kotlin contains 5,863,475 total lines: 2,554,676 code, 2,534,798 comments, 774,001 blank, across 86,195 files in 34 languages (top: Kotlin 76.4%). Custom configuration (tests excluded, docs excluded, generated excluded). Counted with tokei via OctoCounts.
OctoCounts produced this report by resolving JetBrains/kotlin to commit f63b9f344c0a, downloading the repository source archive, and counting every source file with tokei, the open-source line counter written in Rust. The table below breaks the count down by programming language into files, total lines, code lines, comment lines, and blank lines, so the figures can be compared across languages and projects. Results are cached by commit, tokei version, and analysis options, so counting the same revision again reproduces exactly these numbers.
Repository size insights
This is a very large codebase by counted code lines. Code represents 43.6% of all lines, comments represent 43.2%, and the repository averages 30 code lines per file. Kotlin accounts for 76.4% of counted code.
| Language | Files | Lines | Code | Comments | Blanks |
|---|---|---|---|---|---|
| Kotlin | 53329 | 2785893 | 1951162 | 402506 | 432225 |
| Java | 3583 | 482614 | 351852 | 61425 | 69337 |
| JSON | 253 | 58905 | 58905 | 0 | 0 |
| Swift | 370 | 59881 | 55453 | 1040 | 3388 |
| C++ | 208 | 36444 | 28350 | 2206 | 5888 |
| C Header | 473 | 35452 | 22793 | 3785 | 8874 |
| XML | 251 | 21907 | 21015 | 155 | 737 |
| TypeScript | 261 | 18920 | 17133 | 950 | 837 |
| C++ Header | 139 | 14976 | 10149 | 1788 | 3039 |
| C | 38 | 13129 | 9668 | 1648 | 1813 |
| Module-Definition | 725 | 7202 | 6199 | 0 | 1003 |
| JavaScript | 335 | 7090 | 5955 | 223 | 912 |
Top language (Kotlin 76.4%). Generated at .
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Report FAQ
How many lines of code does JetBrains/kotlin have?
JetBrains/kotlin has 5,863,475 total lines, including 2,554,676 code lines, 2,534,798 comment lines, and 774,001 blank lines.
How was the JetBrains/kotlin line count measured?
OctoCounts resolved the public GitHub repository to commit f63b9f344c0a, downloaded the source archive, counted it with tokei, and cached the report by commit, tokei version, and analysis options.
What commit was counted for JetBrains/kotlin?
This OctoCounts report was generated from master at commit f63b9f344c0a on 2026-10-22T05:19:21.474003326+00:00.
Similar repository reports
Other public repositories with an OctoCounts report, ranked by top language and code size similarity:
- vayun-mathur/Modern-Apps — Kotlin, 1,056,758 code lines
- umerov1999/Fenrir-for-VK — Kotlin, 924,038 code lines
- simplex-chat/simplex-chat — Kotlin, 361,347 code lines
- keiyoushi/extensions-source — Kotlin, 339,834 code lines
- dqev/reicon — Kotlin, 332,786 code lines
- element-hq/element-x-android — Kotlin, 283,968 code lines
Play the growth animation for JetBrains/kotlin on this page — 2,554,676 code lines across 12 languages, counted by tokei.