Google Polymer 3.1.0

The Polymer library makes it easy to create your own web components. Give your element some markup and properties, and then use it on a site. Polymer provides features like dynamic templates and data binding to reduce the amount of boilerplate you need to

@polymer/polymer@3.1.0 was published on 2018-10-26. Its manifest declares 1 runtime dependency and 0 peer requirements. Bundled type declarations are not declared in the inspected metadata. No Node.js engine requirement is declared in this manifest.

All Google Polymer versions · Permanent reference to 3.1.0 · Latest release

Package specifications

Version3.1.0
License declarationBSD-3-Clause
Published2018-10-26T18:01:59.738Z
Node.js requirementNot declared
Type declarationsNot declared
Runtime dependency count1
Peer requirement count0
Optional dependency count0
Minified sizeMeasurement not available yet
Minified + gzipMeasurement not available yet
Unpacked distribution size1096.63 KiB
Published file count100
Package typeNot declared
ES module entryNot declared
Default entrypolymer-element.js
Side effects declarationNot declared
Direct advisories0
Resolved graph dependencies1
Repository stars22011
Repository forks1954

Install Google Polymer 3.1.0

npm install @polymer/polymer@3.1.0
pnpm add @polymer/polymer@3.1.0
yarn add @polymer/polymer@3.1.0

Runtime dependencies

Peer requirements

  • None declared

Optional dependencies

  • None declared

Resolved dependency graph

This deps.dev graph describes a generic 64-bit Linux environment, not your application lockfile.

How to interpret the specifications

Bundlephobia measurements use its standard package build and may exclude peer dependencies. Unpacked npm distribution size includes shipped files and is a different measurement. Module declarations do not prove tree-shaking or runtime compatibility.

Advisories apply to this package version directly; transitive dependencies need separate inspection. Repository signals describe the whole repository and are current observations, including on historical-version pages.

OpenSSF repository checks

Provider assessment: 2026-08-24T00:00:00Z. These are repository checks, not a jsL maintenance score.

Maintained0/10 — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Code-Review4/10 — Found 6/15 approved changesets -- score normalized to 4
Binary-Artifacts10/10 — no binaries found in the repo
CII-Best-Practices0/10 — no effort to earn an OpenSSF best practices badge detected
Fuzzing0/10 — project is not fuzzed
License10/10 — license file detected
Security-Policy0/10 — security policy file not detected
SAST0/10 — SAST tool is not run on all commits -- score normalized to 0

Evidence and freshness