npm
es-shims/String.prototype.matchAll
Spec-compliant polyfill for String.prototype.matchAll, in ES2020
MITOct 20, 2026 · metrics 2.10.0
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Catalogue tag
#polyfill
Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.
141 records
npm
thednp/dommatrix
A Typescript sourced DOMMatrix shim for Node.js apps and legacy browsers.
MITOct 9, 2026 · metrics 2.10.0
npm
Sec-ant/readable-stream
A tiny, zero-dependency yet spec-compliant asynchronous iterator polyfill/ponyfill for ReadableStreams.
MITOct 20, 2026 · metrics 2.10.0
NuGet
Tyrrrz/PolyShim
Collection of polyfills for projects targeting older versions of .NET
MITSep 11, 2026 · metrics 2.10.0
npm
macalinao/temporal-utils
A collection of TypeScript utilities for the TC39 Temporal proposal.
Apache-2.0Sep 15, 2026 · metrics 2.10.0
Packagist
PHPCompatibility/PHPCompatibilityPasswordCompat
PHPCompatibility ruleset which can be included in projects using @ircmaxell's PasswordCompat polyfill library
LGPL-3.0Sep 12, 2026 · metrics 2.10.0
npm
es-shims/Object.hasOwn
Official ES spec-compliant polyfill for Object.hasOwn
MITSep 23, 2026 · metrics 2.10.0
npm
hildjj/node-inspect-extracted
Node's util.inspect, extracted for use on the Web
Custom licenseSep 14, 2026 · metrics 2.10.0
npm
sanity-io/eventsource
No repository description published.
MITAug 27, 2026 · metrics 2.10.0
Packagist
nanasess/bcmath-polyfill
PHP 8.4 bcmath functions polyfill with fallback compatibility for environments without bcmath extension. Based on phpseclib/bcmath_compat with additional support for new PHP 8.4 bcmath functions.
MITSep 9, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-mbstring
Symfony polyfill for the Mbstring extension
MITOct 20, 2026 · metrics 2.10.0
Packagist
WyriHaximus/php-msgpack
ext-msgpack polyfill using rybakit/msgpack
MITOct 21, 2026 · metrics 2.10.0
npm
es-shims/Function.prototype.name
ES6 spec-compliant Function.prototype.name sham.
MITSep 16, 2026 · metrics 2.10.0
npm
es-shims/Promise.try
ES Proposal spec-compliant shim for Promise.try
MITOct 19, 2026 · metrics 2.10.0
npm
es-shims/String.prototype.trim
ES5 spec-compliant shim for String.prototype.trim
MITSep 16, 2026 · metrics 2.10.0
npm
lennondotw/layout-zoom
React component that scales content up or down and has it actually affect layout — CSS zoom semantics from transform: scale() in an explicitly sized wrapper, without WebKit's zoom font-metric bugs.
MITOct 21, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-intl-grapheme
Symfony polyfill for intl's grapheme_* functions
MITOct 20, 2026 · metrics 2.10.0
npm
zen-fs/streams
A modern polyfill for node:stream
LGPL-3.0Oct 22, 2026 · metrics 2.10.0
npm
Borewit/text-codec
Lightweight, dependency-free TextEncoder/TextDecoder polyfill supporting UTF-8, UTF-16LE, ASCII, Latin-1, and Windows-1252 for engines like Hermes.
MITSep 23, 2026 · metrics 2.10.0
npm
es-shims/Array.prototype.at
An ES-spec-compliant (proposed) `Array.prototype.at`shim/polyfill/replacement that works as far down as ES3.
MITOct 19, 2026 · metrics 2.10.0
npm
es-shims/Object.getOwnPropertyDescriptors
Spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.
MITSep 23, 2026 · metrics 2.10.0
npm
es-shims/String.prototype.trimEnd
ES2019 spec-compliant String.prototype.trimEnd shim
MITSep 16, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-php85
Symfony polyfill backporting some PHP 8.5+ features to lower PHP versions
MITOct 20, 2026 · metrics 2.10.0
npm
ljharb/object.assign
ES6 spec-compliant Object.assign shim. From https://github.com/es-shims/es6-shim
MITSep 16, 2026 · metrics 2.10.0
Packagist
paragonie/random_compat
PHP 5.x support for random_bytes() and random_int()
MITAug 27, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-intl-idn
Symfony polyfill for intl's idn_to_ascii and idn_to_utf8 functions
MITOct 20, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-php84
Symfony polyfill backporting some PHP 8.4+ features to lower PHP versions
MITOct 20, 2026 · metrics 2.10.0
npm
inspect-js/has-symbols
Determine if the JS environment has Symbol support. Supports spec, or shams.
MITSep 16, 2026 · metrics 2.10.0
npm
nolanlawson/marky
High-resolution JavaScript timer based on performance.mark/measure (491 bytes min+gz)
Apache-2.0Sep 17, 2026 · metrics 2.10.0
Packagist
symfony/polyfill-deepclone
Symfony polyfill for the deepclone extension
MITAug 27, 2026 · metrics 2.10.0