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Descriptions and status summaries are generated by an AI from publicly available data. They may not reflect the current state of a project. More on AI-extracted content. Project owners can request a correction or removal by emailing info@devupdate.io.
fflate is a pure JavaScript library for high performance compression and decompression, designed to be very small (about an 8 kB package). It supports DEFLATE, GZIP, and Zlib, and also includes ZIP file archiving plus streaming and multi-threaded asynchronous compression.
Actively maintained: the upstream shows a recent push on 2026-05-16, and the latest recorded update (v0.8.3 on 2026-05-16) includes multiple correctness and streaming-related improvements plus TypeScript typing fixes.
Last release:
fast-levenshtein is an efficient JavaScript implementation of the Levenshtein distance algorithm, usable in Node.js and in the browser. It supports locale-sensitive string comparisons via Intl.Collator (with an option to enable this), and it uses fastest-levenshtein internally for performance.
Actively maintained: No. The last upstream push was 2021-10-03, and the most recent tagged update shown here is 3.0.0 (2020-07-22), so the project appears quiet/dormant as of 2026-06-09.
Last release:
fast-json-stable-stringify provides a deterministic, faster alternative to JSON.stringify(), producing consistent JSON string output for the same object. It supports custom key comparison (opts.cmp) and can optionally handle circular references (opts.cycles) with a __cycle__ marker.
The repository appears to be in maintenance mode or effectively dormant, with the last upstream push on 2023-07-03 and the most recent documented update (v2.1.0) dating to 2019-12-14.
Last release:
fast-glob is a fast glob library for Node.js, useful for traversing the filesystem and returning pathnames that match Unix Bash-style wildcard patterns (with some simplifications). It provides async (Promise), synchronous, and stream APIs, and can apply multiple and negative patterns. Results are returned in arbitrary order.
Maintenance status: Not clearly actively maintained in 2026, the most recent reported update is 3.3.3 on 2025-01-05, and the upstream push was 2025-09-01, so there has been a long gap relative to today (2026-06-09).
Last release:
fast-deep-equal is a JavaScript library for fast deep equality checks, including value-based comparison for Date and RegExp. It also provides ES6 variants that support Map, Set, and typed arrays, and includes options aimed at comparing React elements.
The repo shows the last upstream push on 2023-10-05, but the most recent documented updates in the provided summaries are from 2020-06 (v3.1.x), suggesting the project is quiet or in maintenance mode rather than actively evolving as of today (2026-06-09).
Last release:
extend-shallow is a Node.js/JavaScript utility that extends object A with the properties of object B and additional objects. It is useful for merging plain objects, including cloning into an empty object with shallow property copying.
Maintenance status: The most recent published updates in the provided history are from 2017-12-19 (v3.0.2), and the upstream push shown is 2021-08-07, so the project appears quiet/dormant rather than actively maintained as of 2026-06-09.
Last release:
estree-walker is a small JavaScript utility for traversing an ESTree-compliant AST, such as one generated by acorn. It provides enter and leave visitor hooks for inspecting, skipping child traversal, replacing nodes, or removing nodes. The package is deprecated, with zimmerframe recommended as the alternative.
Maintenance status: The repo shows an upstream push on 2025-09-07, but the latest published updates listed here were v3.0.3 (2023-01-20), suggesting development may be ongoing while tagged releases are infrequent.
Last release:
estree-util-visit is an esast and estree utility that helps you walk a JavaScript AST, using a depth-first traversal with access to ancestor information. It’s useful for processing or transforming JavaScript AST nodes, with visitor hooks for entering and leaving nodes and actions to continue, skip children, or exit traversal.
Maintenance status: Appears quiet/dormant, last upstream push was 2023-07-19, and no updates are listed after that date (as of 2026-06-09).
Last release:
estree-util-to-js is a utility that serializes an estree syntax tree into a string of JavaScript, optionally returning source maps. It is useful when you need to generate JavaScript output from a syntax tree, including cases where you integrate with tools that do not support syntax trees.
The source appears to be dormant or in maintenance mode, with its last known upstream update on 2023-07-31, which is over 2 years ago relative to today (2026-06-09).
Last release:
estree-util-scope is an ESM-only JavaScript utility for walking an ESTree AST and tracking what identifiers are defined in each scope. It’s useful if you want to inspect scope definitions while traversing code, returning scope info like which scope is currently active and which names are defined.
The source appears actively maintained, with a very recent update on 2026-08-25 (1.0.1), just 2 days before today (2026-08-27).
Last release:
estree-util-is-identifier-name is a small JavaScript utility that checks whether a value can be used as an ECMAScript identifier name. It also provides helpers to test whether a code point can start an identifier or continue one, useful when generating IDs from strings or validating identifier text.
Active maintenance status: No upstream updates since 2023-07-19, so as of 2026-06-09 the project appears quiet or in maintenance mode rather than actively maintained.
Last release:
estree-util-build-jsx transforms JSX nodes embedded in an estree (JavaScript) syntax tree into function calls, for example converting `<x />` into `h('x')`. It is useful when you already have a syntax tree and only need to compile JSX away (supporting runtimes for React, preact, and hyperscript-style interfaces).
The source appears to be in a quiet maintenance state. The last known upstream push is 2024-08-23, and the most recent published update in the provided history is 3.0.1 on 2023-10-22. With today being 2026-06-09, there is a long gap without new published updates.
Last release:
estree-util-attach-comments is a utility for attaching comment nodes to the correct nodes in an ESTree syntax tree. It takes a tree plus an array of comments (with leading and trailing fields) and mutates the tree so tools like recast or Babel can print or process comments that would otherwise be separate.
Maintenance status: Not actively maintained as of 2026-06-09. The last upstream update was in 2023-07-31, with no evidence of ongoing updates after 3.0.0.
Last release:
Estraverse provides ECMAScript JavaScript AST traversal functions, letting you walk and optionally modify an AST (including replacing nodes during traversal). It is useful for tasks like collecting information from specific node types and customizing traversal behavior for known and unknown nodes.
Maintenance status: Appears largely in maintenance or slow-evolution mode, with the last known upstream push in 2022-04-04 and the most recent documented package updates in 2021-10-25 (v5.3.0).
Last release:
Esrecurse provides ECMAScript AST recursive traversing functionality, based on an AST recursive visitor. It’s useful for walking an ESTree-style syntax tree and running custom visitor logic for specific node types, including options to customize child traversal and handle unknown nodes via fallback behavior.
Maintenance status: Appears quiet or in maintenance mode in 2026, with the most recent published updates shown in the evidence from 2020-08-31 (v4.3.0), and the last GitHub upstream push on 2023-03-30.
Last release:
ESQuery is a JavaScript library for querying an Esprima-generated ECMAScript AST using a CSS-style selector syntax. It is useful for finding AST nodes that match patterns, such as node types, nested fields, and selector-based relationships like parent-child and sibling combinators.
Maintenance status: Evidence suggests some ongoing maintenance (last upstream push on 2025-12-31), but the most recent tagged updates available here are v1.6.0 (2024-07-08), which is about 23 months before today (2026-06-09), indicating a long documentation/tagging quiet period.
Last release:
ESLint JS is a monorepo for JavaScript language tools, containing packages like espree, eslint-scope, and eslint-visitor-keys. It is useful when you need underlying JS parsing and analysis components that support ESLint-related tooling.
The eslint/js monorepo appears actively maintained, with an upstream push on 2026-06-01 and multiple package updates across espree, eslint-scope, and eslint-visitor-keys in early 2026.
Last release:
`eslint-plugin-react` provides React-specific linting rules for ESLint, helping developers catch common issues and enforce React best practices in JavaScript and JSX code. It includes recommended and other shareable configurations that can be enabled in an ESLint setup.
Actively maintained, but with evidence limited to tags up to v7.37.5 (2025-04-03) and a more recent upstream push on 2026-05-13, so ongoing work exists but the provided changelog does not show corresponding tagged updates after April 2025.
Last release: