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Maintained libraries for JavaScript and TypeScript projects, published under the @stackline npm namespace. Search the complete public portfolio, check current npm activity, and go directly to docs or source.

Weekly downloads
15,766
official npm data
Published packages
44
installable now
Most installed
@stackline/xlsx
12,445 this week

npm period . Snapshot refreshed .

Public source Typed APIs Compatibility tested Published on npm

Complete inventory

All packages

44 packages
Data & formats v1.0.6

@stackline/xlsx

SheetJS-compatible spreadsheet parser and writer with Stackline security hardening

12,445downloads in the latest week
npm i @stackline/xlsx
AI & streaming v1.0.1

@stackline/tool-router

Zero-dependency AI tool discovery and routing for MCP, OpenAI, Anthropic, and Gemini catalogs

277downloads in the latest week
npm i @stackline/tool-router
Data & formats v1.0.1

@stackline/deepmerge

Secure, immutable, zero-dependency deep merge with a deepmerge-compatible API for ESM, CommonJS, TypeScript, and browsers

199downloads in the latest week
npm i @stackline/deepmerge
AI & streaming v1.0.1

@stackline/sse

Universal, spec-correct and memory-safe Server-Sent Events toolkit for AI streaming, browsers, servers and edge runtimes

190downloads in the latest week
npm i @stackline/sse
Data & formats v1.0.2

@stackline/stable-stringify

Deterministic, cycle-aware JSON serialization with a fast-json-stable-stringify-compatible API and RFC 8785 canonicalization

181downloads in the latest week
npm i @stackline/stable-stringify
UI frameworks v22.1.0

@stackline/angular-multiselect-dropdown

Angular multiselect dropdown for Angular 22 with maintained release lines, accessibility-focused and keyboard/ARIA tested interactions, dialog-safe body overlays, Stackline skins, search, grouping, templates, headless helpers, and forms support.

171downloads in the latest week
npm i @stackline/angular-multiselect-dropdown
Node tooling v1.0.1

@stackline/redeyed

Source-preserving JavaScript token transforms with immutable configs and parser adapters

153downloads in the latest week
npm i @stackline/redeyed
Node tooling v1.0.0

@stackline/update-section

Compatibility-first text section replacement with corrected marker metadata and first-party types

124downloads in the latest week
npm i @stackline/update-section
Data & formats v1.0.1

@stackline/deep-is

Stack-safe deep equality with the proven deep-is 0.1.4 semantics

119downloads in the latest week
npm i @stackline/deep-is
Source maps v1.0.1

@stackline/convert-source-map

Maintained convert-source-map-compatible parser with linear-time discovery and defensive property handling

115downloads in the latest week
npm i @stackline/convert-source-map
Node tooling v1.0.0

@stackline/proxyquire

Compatibility-first CommonJS dependency injection with bounded cache cleanup, caller anchoring, and first-party types

115downloads in the latest week
npm i @stackline/proxyquire
Source maps v1.0.1

@stackline/inline-source-map

Maintained inline-source-map-compatible generator for Node.js, TypeScript, CommonJS, ESM, and browser bundles

108downloads in the latest week
npm i @stackline/inline-source-map
Node tooling v1.0.1

@stackline/ansicolors

Zero-dependency ANSI color wrappers with exact ansicolors compatibility and first-party types

107downloads in the latest week
npm i @stackline/ansicolors
Node tooling v1.0.0

@stackline/cardinal

Compatible JavaScript and JSON terminal highlighting with reliable streams, themes, ESM, and types

98downloads in the latest week
npm i @stackline/cardinal
UI frameworks v22.1.0

@stackline/angular-data-table-component

An Angular 22 data table with sorting, filtering, pagination, selection, grouping, pinning, virtualization, templates, and a headless controller.

97downloads in the latest week
npm i @stackline/angular-data-table-component
Node tooling v1.0.0

@stackline/dev-null

Zero-dependency Node.js writable sink with exact dev-null compatibility and first-party types

84downloads in the latest week
npm i @stackline/dev-null
Source maps v1.0.1

@stackline/combine-source-map

Maintained combine-source-map-compatible combiner with synchronous APIs, modern mappings, and defensive parsing

81downloads in the latest week
npm i @stackline/combine-source-map
Node tooling v1.0.0

@stackline/find-parent-dir

Find the nearest parent containing a file or directory with callback, sync, and Promise APIs

71downloads in the latest week
npm i @stackline/find-parent-dir
UI frameworks v1.1.3

@stackline/multiselect

Framework-agnostic vanilla JavaScript multiselect dropdown with headless state APIs, skins, object data, body overlays, and accessibility-focused keyboard/ARIA tested behavior.

70downloads in the latest week
npm i @stackline/multiselect
UI frameworks v19.1.5

@stackline/react-multiselect-dropdown

Maintained React 19 multiselect dropdown with accessibility-focused and keyboard/ARIA tested support, controlled state, slots, headless/state hooks, Stackline skins, body overlays, live docs, search, grouping, lazy loading, and custom renderers.

69downloads in the latest week
npm i @stackline/react-multiselect-dropdown
Browser tools v1.0.0

@stackline/brace

Compatibility-first Browserify build of the modern Ace editor with inline workers

68downloads in the latest week
npm i @stackline/brace
Node tooling v1.0.0

@stackline/dynamic-dedupe

Compatibility-first CommonJS module deduplication for linked and copied dependency trees

65downloads in the latest week
npm i @stackline/dynamic-dedupe
Source maps v1.0.0

@stackline/source-map-resolve

Compatibility-first source map and source resolver with maintained packaging, browser builds, and first-party types

61downloads in the latest week
npm i @stackline/source-map-resolve
AI & streaming v0.0.3

@stackline/ai-server

Fetch-compatible HTTP backend handler for Stackline AI.

59downloads in the latest week
npm i @stackline/ai-server
AI & streaming v0.0.3

@stackline/ai-ollama

Ollama provider adapter for Stackline AI.

58downloads in the latest week
npm i @stackline/ai-ollama
Browser tools v1.0.1

@stackline/loading-core

Framework-agnostic TypeScript loading toolkit with spinners, overlays, skeletons, shimmer loaders, and smart anti-flicker behavior.

58downloads in the latest week
npm i @stackline/loading-core
UI frameworks v22.1.1

@stackline/angular-highcharts

Angular wrapper components for Highcharts, Highstock, Highmaps, zAxis, and colorAxis integrations

57downloads in the latest week
npm i @stackline/angular-highcharts
UI frameworks v3.1.5

@stackline/vue-multiselect-dropdown

Maintained Vue multiselect dropdown with Vue 2 and Vue 3 release lines, accessibility-focused keyboard/ARIA tested behavior, Stackline skins, body overlays, object data, scoped slots, and renderless composables.

56downloads in the latest week
npm i @stackline/vue-multiselect-dropdown
AI & streaming v0.0.3

@stackline/ai

Provider-neutral Stackline AI contracts, server core, RAG, memory, and adapter interfaces.

46downloads in the latest week
npm i @stackline/ai
AI & streaming v0.0.5

@stackline/ai-ui

Framework-neutral Stackline AI Studio web component.

44downloads in the latest week
npm i @stackline/ai-ui
AI & streaming v0.0.3

@stackline/ai-rag-postgres

PostgreSQL read-only RAG retriever for Stackline AI.

41downloads in the latest week
npm i @stackline/ai-rag-postgres
UI frameworks v19.1.0

@stackline/react-highcharts

A maintained React 19 wrapper for Highcharts, Highstock, and Highmaps with native options, constructor switching, module helpers, refs, and realtime update modes.

41downloads in the latest week
npm i @stackline/react-highcharts
Browser tools v1.0.1

@stackline/color

A tiny, framework-agnostic color picker foundation for modern web applications.

38downloads in the latest week
npm i @stackline/color
AI & streaming v0.0.3

@stackline/ai-memory-sqlite

SQLite conversation memory store for Stackline AI development and tests.

37downloads in the latest week
npm i @stackline/ai-memory-sqlite
Browser tools v1.0.1

@stackline/resize-observer

Polyfills the ResizeObserver API and supports box size options from the latest spec

35downloads in the latest week
npm i @stackline/resize-observer
Data & formats v1.0.1

@stackline/moment-core

Maintained Moment.js API package for parsing, validating, manipulating, and formatting dates.

28downloads in the latest week
npm i @stackline/moment-core
Browser tools v1.0.1

@stackline/client-errors

A lightweight frontend error reporting SDK for browser applications, with normalized payloads, sanitization, and transport to any developer-defined endpoint.

24downloads in the latest week
npm i @stackline/client-errors
Node tooling v1.0.0

@stackline/fs-write-stream-atomic

Compatibility-first atomic filesystem Writable streams with maintained lifecycle handling and first-party types

Newfirst complete npm period pending
npm i @stackline/fs-write-stream-atomic
Node tooling v1.0.0

@stackline/fstream

Compatibility-first filesystem object streams with maintained packaging and first-party types

Newfirst complete npm period pending
npm i @stackline/fstream
Data & formats v1.0.0

@stackline/har-validator

Compatibility-first HAR 1.2 validator with maintained packaging, browser builds, and first-party types

Newfirst complete npm period pending
npm i @stackline/har-validator
Node tooling v1.0.0

@stackline/once

Compatibility-first one-shot function wrappers with safe callback decorations and the restored prototype API

Newfirst complete npm period pending
npm i @stackline/once
Source maps v1.0.0

@stackline/resolve-url-loader

Compatibility-first webpack Sass URL rebasing loader with maintained packaging and first-party types

Newfirst complete npm period pending
npm i @stackline/resolve-url-loader
Source maps v1.0.0

@stackline/source-map-support

Compatibility-first source-map stack traces for VM, browser, and custom loader integrations

Newfirst complete npm period pending
npm i @stackline/source-map-support

Engineering notes

Read before you install

Implementation details, security boundaries, and migration tradeoffs from the package maintainers.

Nested object structures joining through a controlled merge Security Deep merge untrusted objects safely

Unsafe keys, array semantics, compatibility aliases, and regression tests.

 Object keys arranged into deterministic JSON order Data integrity Stable and canonical JSON are different tools

Choose the right serializer for cache keys, signatures, and logs.

 A continuous event stream across browser and server runtimes Streaming Build a bounded SSE client for AI streams

Parsing, cancellation, reconnects, limits, and provider event shapes.

 A large tool catalog narrowed to a relevant working set AI systems Route tool catalogs before model inference

Reduce context without losing native MCP or provider definitions.

Release discipline

Maintained in public.

Each package owns its API contract, documentation, test matrix, license, and release history.

Compatibility
Public APIs and migration paths are tested across supported runtimes.
Required
Security
Known advisories, input boundaries, and dependency risks are documented.
Required
Inspection
Source, changelog, packed contents, and CI results remain public.
Required
Licensing
Original notices and third-party obligations stay with every maintained fork.
Required