What is Less?

Less is a dynamic stylesheet language that extends CSS with variables, mixins, functions, nesting, and mathematical operations, compiling to standard CSS for web projects.

Independently observed

Less pricing

We don't have Less's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.

Platform & deployment

Independently observed
Platforms
  • CLI
  • Web
Deployment
  • Self-hosted

Security & compliance

Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality

Less alternatives

Other javascript tooling we track, ranked by the same independent score.

All Less alternatives, ranked →

Compare Less

Side by side against other javascript tooling, attribute by attribute, with a source on every value.

Independent · unbought · dated

The Vioscale score: one lens on the evidence

Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Less, not the verdict.

Balanced composite 60 / 100
low · 21%updating
Signal contributions to the composite score
SignalScoreWeightContributionEvidence
Dependent projects1000.066.3
Release cadence770.054.0
Security score540.042.3
Stars800.032.1
Development activity220.092.1
Capabilities00.080.0-
Integrations00.070.0-
Security posture00.070.0-
Package downloads00.140.0-
Developer Q&A activity00.060.0-

Computed . Re-weight it by intent, or see the full method.

All data & sourcesshow ↓

Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.

Activity

AttributeValueEvidence
Commits last 30d4mediumsource · 2026-08-26 · 65%

Adoption

AttributeValueEvidence
Github stars17,029highsource · 2026-08-26 · 90%
Dependent repos951,165highsource · 2026-08-26 · 85%

Language

AttributeValueEvidence
PrimaryJavaScripthighsource · 2026-08-26 · 90%

License

AttributeValueEvidence
SpdxApache-2.0highsource · 2026-08-26 · 95%

Pricing

AttributeValueEvidence
Free tierYesmediumsource · 2026-08-22 · 60%
Modelopen_sourcemediumsource · 2026-08-22 · 60%
Price levelfreemediumsource · 2026-08-22 · 60%

Release

AttributeValueEvidence
Cadence days41mediumsource · 2026-08-26 · 70%
History20 itemsmediumsource · 2026-08-26 · 70%

Security

AttributeValueEvidence
Scorecard5.4highsource · 2026-08-26 · 90%
VulnerabilitiesCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=less&per_page=100 · Last 12m: 0highsource · 2026-08-26 · 90%