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Head-to-Head NPM Comparison

sassvsless

Detailed package comparison for bundle size, weekly downloads, supply chain security, and license obligations.

Weekly Downloads Leader
sass17.1M/wk
Security Grade Leader
Equal Rating100/100
TypeScript Ready
sass
Specification
sassv1.106.1
lessv4.9.1
Weekly Downloads17.1MWinner6.0M
Unpacked Size5.80 MB3.11 MB
Security Grade
A+(100/100)
A+(100/100)
Lifecycle Scripts Clean (No scripts) Clean (No scripts)
TypeScript Support Built-in Types (.d.ts)Community @types
License TypeMITPERMISSIVEApache-2.0PERMISSIVE
Direct Dependencies32
Active Maintainers25
Last ReleaseOct 21, 2026Sep 2, 2026
Install Commandnpm i sassnpm i less
Full Security ReportView sass AuditView less Audit
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Frequently Asked Questions

Which package is more popular, sass or less?
sass is currently more popular with higher weekly downloads (17.1M/week) compared to less (6.0M/week).
Which has better supply chain security, sass or less?
sass has a security score of 100/100 (Grade A+), while less holds 100/100 (Grade A+). Both packages have equal security standings.
Do sass and less provide TypeScript definitions?
sass includes built-in TypeScript types, while less may require community @types definitions.
What licenses do sass and less use?
sass is published under the MIT license (PERMISSIVE), and less is licensed under Apache-2.0 (PERMISSIVE).