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mozilla/pdf.js

Establishedrank #157

PDF Reader in JavaScript

54k+104 · 7d 10.7k 399est. Apache-2.0JavaScriptpushed 7m ago
Compare View on GitHub

Composite

69

conf 65%

Momentum

55

conf 60%

Vitality (PVI)

73

conf 67%

Community

63

conf 60%

Security & maint.

94

conf 85%

Ecosystem influence

68

conf 60%

Opportunity

55

conf 60%

Breakout · 7d

63%

conf 71%

Executive summary

pdf.js is currently classified as established with a composite score of 69/100. Momentum (55) and vitality (73) are aligned — growth is backed by sustained maintenance. Estimated 7-day gain of 104 stars against a 54k-star base. Risk is assessed as low; the interpretable model puts its probability of entering the top trend cohort within 7 days at 63%.

90-day trajectory

+373 · 30d
2026-07-272026-10-24

Score breakdown

Every input, weight and normalized value — nothing hidden. Inputs marked est. are estimated until the full ingestion pipeline lands.

Momentum

Star velocityest.25%56
Star accelerationest.15%60
Fork velocityest.10%44
Contributor growthest.10%67
Issue activity growthest.10%80
PR activity growthest.10%73
External mention velocityest.10%2
Release event impactest.5%66
Trending-rank persistenceest.5%50

Model tn-interpretable-1.0.0 · confidence 60% · coverage 100%

Project Vitality Index

Commit consistency20%100
Release cadenceest.15%68
PR responsivenessest.15%45
Issue responsivenessest.15%51
Contributor diversityest.10%96
Maintainer continuityest.10%80
Documentation qualityest.5%57
Dependency freshnessest.5%81
Security hygieneest.5%75

Model tn-interpretable-1.0.0 · confidence 67% · coverage 100%

Security & maintenance

Release recency25%100
License clarity20%92
Maintenance status25%100
Dependency stalenessest.15%69
Bus factorest.15%100

Model tn-interpretable-1.0.0 · confidence 85% · coverage 100%

Ecosystem influence

Dependent repositoriesest.30%97
Quality-weighted dependentsest.20%89
Documentation citationsest.15%67
Contributor overlapest.15%51
Registry adoptionest.10%29
Topic centralityest.10%4

Model tn-interpretable-1.0.0 · confidence 60% · coverage 92% · missing: packageRegistryAdoption