Svelte vs React: source lines of code compared

This page compares the source lines of code (SLOC) of sveltejs/svelte and facebook/react using cached OctoCounts reports. Code size is not code quality: a larger count only means more source material, not a better or worse project.

As of 2026-09-06, sveltejs/svelte contains 100,451 total lines (58,803 code) across 509 files, while facebook/react contains 332,301 total lines (254,981 code) across 1,911 files as of 2026-09-06. facebook/react is about 4.3x the size of sveltejs/svelte by code lines. Code size is not code quality: a larger count only means more source material, not a better or worse project.

Metricsveltejs/sveltefacebook/react
Files5091,911
Total lines100,451332,301
Code lines58,803254,981
Comment lines25,13249,174
Blank lines16,51628,146
Languages counted812

Top languages in sveltejs/svelte: JavaScript (78.0% of code), TypeScript (14.1% of code), YAML (6.1% of code). Top languages in facebook/react: JavaScript (77.0% of code), TypeScript (19.5% of code), JSON (1.3% of code). JavaScript, TypeScript, JSON appear in both top language lists; YAML, HTML appear only in sveltejs/svelte's top languages; CSS, TSX appear only in facebook/react's top languages.

Methodology: both counts come from cached OctoCounts reports generated with tokei. sveltejs/svelte was counted at ref main (commit 5895c637b04d) on 2026-09-06; facebook/react was counted at ref 6c7b1a1d9898025bb087a3b97d875091e4f67cf3 (commit 6c7b1a1d9898) on 2026-09-06. See the counting methodology for ignored directories and analysis options.

Evidence and next steps:

Note: code size is not code quality. OctoCounts only reports reproducible line counts and makes no claim that either project is better.

Compare FAQ

Which has more lines of code, sveltejs/svelte or facebook/react?

facebook/react has more code: 254,981 code lines versus 58,803 for sveltejs/svelte, about 4.3x as much, based on cached OctoCounts reports as of 2026-09-06.

Does more source lines of code mean more complexity?

Not necessarily. SLOC measures size, not complexity, quality, or maintainability. A larger codebase can mean more features, more generated or vendored code, more verbose language idioms, or more tests — none of which imply the code is harder to work with. Use SLOC to gauge the scale of what you'd be reading or maintaining, not as a quality signal for sveltejs/svelte, facebook/react, or any repository.

How is this comparison calculated?

Methodology: both counts come from cached OctoCounts reports generated with tokei. sveltejs/svelte was counted at ref main (commit 5895c637b04d) on 2026-09-06; facebook/react was counted at ref 6c7b1a1d9898025bb087a3b97d875091e4f67cf3 (commit 6c7b1a1d9898) on 2026-09-06. See the counting methodology for ignored directories and analysis options.

Can I compare a different branch, tag, or commit?

Yes. This page shows the default branch for each repository. Use the interactive comparison tool to pick any public GitHub repository, branch, tag, or commit SHA for both sides and get a fresh side-by-side report.