Svelte 5+Node.js 12

Why?

Why is Svelte 5 incompatible with Node.js 12?

Requirement

Node.js >=18

Selected version

Node.js 12

Evaluation

12.22.12 does not satisfy >=18

Conclusion

INCOMPATIBLE

Evidence

CompatHub reports compatibility from upstream sources rather than making unsupported claims of its own.

• npm Registry

  Confidence: HIGH

  https://registry.npmjs.org/svelte/5.57.0

  Retrieved 30 August 2026

  Requirement: >=18

Node.js versions

Compatibility is derived from the project's declared Node.js requirement (>=18); it does not mean every version combination has been independently tested.

• 11❌
• 12❌
• 13❌
• 14❌
• 15❌
• 16❌
• 17❌
• 18✓
• 19✓
• 20✓
• 21✓
• 22✓
• 23✓
• 24✓
• 25✓
• 26✓
• 27—

Other Node.js versions satisfying this requirement

Svelte 5 — compatible Node.js lines tracked in CompatHub

• ✓Node.js 18version lineEOL
• ✓Node.js 19version lineEOL
• ✓Node.js 20version lineEOL
• ✓Node.js 21version lineEOL
• ✓Node.js 22version linesupported
• ✓Node.js 23version lineEOL
• ✓Node.js 24version linesupported
• ✓Node.js 25version lineEOL
• ✓Node.js 26version linesupported

Other Svelte versions

Only lines with relevant compatibility evidence are listed.

• Svelte 5
• Svelte 4
• Svelte 3

Lifecycle context

Lifecycle status is separate from compatibility. An EOL component can still satisfy a documented version requirement.