JSPM

Download, install, and manage a local Neo4j database instance

OpenCode plugin that gives coding agents persistent memory using local vector database

LavaStore is a flexible and scalable local database for the web.

A file-based local vector database with ANN indexing for Electron apps

Local username and password authentication strategy for Passport.

Fast document oriented NodeJS database for node and browser. Allow adapters for in-memory, fs (JSON based or optimized), localStorage.

Database using local file stream.

Local database with json.

a JSON/YAML/LocalStorage database module

Check if a filename is safe to use in a path join operation

A JS library to introduce a schema layer to a No-SQL local database

Loads environment variables from `.env.[development|test|production][.local]` files

Run DynamoDB local for development and testing

Binary wrapper that makes your programs seamlessly available as local dependencies

✍ Easy to use local JSON database

JSON file database.

Binary wrapper that makes your programs seamlessly available as local dependencies

Local JSON database with overlays to be used as fixtures

<div align="center"> <img src="../../assets/images/atosPNG.png" width="456" alt="@atosjs/database"></img>

Kolay Kullanımlı JsonDB/YamlDB Database Modülü

Commandline tool and API to run Lambda functions on your local machine.

A Simple local JSON database

Run AI models locally on your machine with node.js bindings for llama.cpp. Enforce a JSON schema on the model output on the generation level

Get installation path where the given package is installed. Works for globally and locally installed packages

Resolves a given package if it is installed locally, then tries to resolve it from global registry, using battle-tested [global-modules][] package. Better approach than internal `require.resolve`, so you can trust. You just get absolute filepath to some p

A localStorage and sessionStorage adapter for Backbone. It's a drop-in replacement for Backbone.Sync() to handle saving to the browser's browserStorage or sessionStorage database.

A module for creating a local JSON-based database

a JSON/YAML/LocalStorage database module

Make bluebird work with the continuation-local-storage module.

A light-weight module to interact with your local JSON database.

Flat JSON file database with promise

Nodejs bindings for LambdaTest Tunnel

Reduce up to 40% your Cypress suite execution time parallelizing the test run on the same machine.

Replace port numbers with stable, named .localhost URLs. For humans and agents.

detect global and local lexical identifiers from javascript source code

High-performance, secure, and robust local database

JS Search is an efficient, client-side search library for JavaScript and JSON objects

A Firebase REST API on a local in-memory database.

Retrieve formatted URL addresses for local and LAN access.

To avoid style conflicts (CSS collisions/interference side effects) when using Tailwind CSS with other UI libraries like Antd, Vuetify etc.

Tiny local JSON database for Node, Electron and the browser

local project access database

Core utilities for Localflare - config parsing and binding discovery

PouchDB database storage bit - replaces @ha-bits/bit-database with local persistence

Local development dashboard for Cloudflare Workers

Checks that given package is installed globally or locally.

a simple database engine for prototyping

Asynchronous key-value pair local storage with indexed-db.

Lightweight, MongoDB-like JSON database for Node.js

An Angular module that gives you access to the browsers local storage

A leightweight easy to use local json database

Easily persist and load config data. No dependencies.

Full Text-Search for Cloud Firestore, using the Realtime Database

PASETO for Node.js with no dependencies

File-based MongoDB drop-in replacement for TypeScript/Node.js. SQLite is to SQL as MangoDB is to MongoDB.

Implements a local reverse geocoder based on GeoNames.

AngelDB is a json database for nodejs

Local database connector agent for DBInsight. Securely connects your local PostgreSQL database to DBInsight cloud.

blob store that stores blobs on the local file system

Small JSON database for Node, Electron and the browser. Powered by Lodash.

Tiny local JSON database for Node, Electron and the browser

A local-first CLI coding agent that brings the power of agentic coding tools like Claude Code and Gemini CLI to local models or controlled APIs like OpenRouter

A simple http server to serve static resource files from a local directory.

Local database module for twitch-irc.

A simple json database for small projects

> ✍ Easy to use local JSON database for [Nest.js](https://nestjs.com)

Install an npm package

CommonJS version of lowdb 3.0.0. See https://github.com/mifi/commonify

Local storage data provider for react-admin

in memory localStorage polyfill for node.js utilizing ES6 proxies

A react-native package built on top of AsyncStorage to easily us localstorage as database like firebase/firestore.

Local / Offline Search for Docusaurus

A micro database

A simple and lightweight JSON file database

Semantic codebase search with zero cloud dependencies

A local JSON database using standard MySQL queries. The fastest way to get a database into your project.

hint local connector

Angular service wrappers for the webstorage API

A very simple local json file database for Node.js that can be used for prototyping and small projects.

A database library stores JSON file for Node.js.

a browserify server for rapid prototyping

Automatically installs project's peerDependencies (as devDependencies)

An easy to use local json database.

a really fast and cool local database that saves data in JSON format

Allows you to import local variables, functions and classes from other modules

find a free tcp port to listen locally

Serverless JSON database using COS(Cloud Object Storage)

Process execution for humans. This is a fork of sindresorhus/execa, but with CommonJS support.

Dynamodb local plugin for devops

> Run AWS SQS locally without dependency. > Supports both AWS Query and JSON (x-amz-json-1.0) protocols.

Tired of pushing to test your .gitlab-ci.yml?

Realtime JSON DB

Blazing fast, crash-proof embedded JSON database for Node.js with batch operations, TTL, indexes, and segmented checkpointing.

AWS Application Load Balancer and API Gateway - Lambda dev tool for Serverless. Allows Express synthax in handlers. Supports packaging, local invoking and offline ALB, APG, S3, SNS, SQS, DynamoDB Stream server mocking.

package for building simple nosql databases using json files

A solution to use the `simple-dynamo` interface with a MySQL database. So you can create a offline version of a AWS-DynamoDB project.

A local-only version of '@changesets/changelog-github' that doesn't rely on GitHub's API.

Access remote CouchDB databases like you would access your local PouchDB ones.

Commandline tool to run Lambda functions on your local machine.

Speech-to-text, text-to-speech, speaker diarization, and speech enhancement using Next-gen Kaldi without internet connection

A better way to import NodeJS modules

The local database that should have existed. JSON-native, analytics built-in, vector search included.

A wrapper around both a Firebase REST API and a local in-memory database.

MongoDB API compliant database that runs in the browser and Node.js using OPFS for storage.

OpenCode plugin that gives coding agents persistent memory using local vector database

PASETO v4 (encrypt, decrypt, sign & verify) in TypeScript

Simple & intuitive way to manage collections of data.

Cross domain local storage

Speech-to-text, text-to-speech, speaker diarization, and speech enhancement using Next-gen Kaldi without internet connection

CLI tools for local Supabase schema/data workflows

CLI to install project's peerDependencies, without side effects.

unix local sockets with descriptor passing

JSON Server data provider for react-admin

load fetch convert and save local and remote files and images to base64 in js

A way to interact to a folder of json files like it was a document database.

A lightweight, non-schema, local database simulator

Authentication token strategy for Passport.

A webpack plugin that allows you to securely use environment variables within your javascript web application, loading them using dotenv-flow's `.env*` files loading strategy.

Wrapper for running Amazon Lambda modules locally

`asyncforge` allows you to remove singletons from your codebase with the use of [`AsyncLocalStorage`](https://nodejs.org/api/async_context.html#class-asynclocalstorage).

Local database for javascript's projects

💪 Try as hard as possible to detect the client's language tag ('locale') in node or the browser. Browserify and Webpack friendly!

Tiny local JSON database for Node, Electron and the browser

A wrapper for AWS's [Step Functions Local](https://docs.aws.amazon.com/step-functions/latest/dg/welcome.html).

Run AWS step functions offline with Serverless

LMCP — connect Claude Desktop, Cursor, Windsurf to Mail, Calendar, Contacts, Teams, OneDrive on macOS. Privacy-first: all data stays on your Mac.

Get the local npmrc with fallback to the global one that's in your home directory

Return an array of resolved filepaths for require-able local or named npm modules. Wildcard (glob) patterns may be used.

A more usable typed storage API for Web Extensions

This plugin allows your application to retrieve the local wifi address and http proxy information.

Node.js bindings for OpenAI's Whisper. Runs local on CPU.

A 'wee' and simple embedded JSON database built on `lowdb` with some traditional query benefits/syntax

Fast web server allowing to browse, search and edit project documentation written in Markdown

Reverse geocoding to determine the location where it is contained (continent, country, region and state) from the latitude and longitude specified. This module also has tools to get lists of continents, country groupings, countries, regions and states in

Dev CLI for Prisma

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Font loader optimized for maximum performance. Removes render-blocking font resources and loads them asynchronusly. Handle FOUT & FOUC with font loading status watcher. Supports both local-hosted fonts and web fonts.

SNS/SQS/S3 emulator

MoonlightDB is a lightweight local database with no dependencies and easy to use.

[](https://travis-ci.org/jeromegn/Backbone.localStorage) [](

A lightweight, 0 dependency, easy-to-use local database using JSON to store data

Local OpenTelemetry backend for testing instrumentation - no Docker, no config, just npx

Private, local-first AI chatbot with persistent working memory. One command install via npx.

a JSON/YAML/LocalStorage database module

Tiny local JSON database for Node, Electron and the browser

Get the machine IP on the local network.

OpenCode plugin that gives coding agents persistent memory using local vector database

Local storage localstorage package provides a simple API

Another Local JSON Database

javascript function to transform timestamp or date to local relative-time

A small module for installing local packages. Works for both npm >= 5 and older versions.

HTTP/HTTPS testing server for your tests.

Speech-to-text, text-to-speech, speaker diarization, and speech enhancement using Next-gen Kaldi without internet connection

Run AI models locally on your machine with node.js bindings for llama.cpp. Enforce a JSON schema on the model output on the generation level

a lightweight module to sync JS objects in realtime across tabs / windows of a browser.

SQLite storage adapter for Engram — zero-config local memory with vector search and FTS5

Speech-to-text, text-to-speech, speaker diarization, and speech enhancement using Next-gen Kaldi without internet connection

Creates a temporary folder inside cwd, cds inside the folder, runs a function, and removes the folder. Especially useful for testing.

Uma simples Database em JSON para Node.js. (Brasileira)

A NodeJS CLI to generate a Non-Relational Database blank project with helper functions to Create, Read, Update, Delete and more

Get your internal IP address

Find devices connected to the current local network.

A changelog generator for Github projects that only uses the Git history

Simulates server and database behaviour without need for them. Makes prototyping client side applications easier.

Database based on columns and tables created to be simple but useful and efficient in testing, development and production environments.

cache dependency manager installs to local machine

a lightweight module to sync JS objects in realtime across tabs / windows of a browser.

Lightweight file based NoSQL DB

a lightweight server-side module to sync JS objects in realtime across tabs / windows of a browser.

pandadb is a local document-oriented JSON database, ready to be implemented in an application in a simple way

Simple and fast TypeScript in-memory caching. Modern TypeScript port of node-cache.

A simple and smart tunneling solution. Expose your localhost to the world.

a lightweight module to sync JS objects in realtime across tabs / windows of a browser (local storage version).

Core utils / types library for localsync monorepo.

Get all possible javascript (npm/yarn/pnpm) global or local, binaries or packages paths, e.g. node_modules and node_modules/.bin. Also works for those using NVM or such

Local-first AI agent memory system. No account needed.

Light Weight DataBase - A node:fs wrapper for easy file and data management

typescript lambda local development server

Speech-to-text, text-to-speech, speaker diarization, and speech enhancement using Next-gen Kaldi without internet connection

Binary mirror download link replacement for mainland China

Speech-to-text, text-to-speech, speaker diarization, and speech enhancement using Next-gen Kaldi without internet connection

PathDB is a small database created upon the JSON structure.

Utility for creating HTTP and WebSocket servers for testing

Adds project level node_modules/.bin to your PATH

[![npm package][npm-badge]][npm] ![npm-bundle-size] ![Module formats][module-formats] ![npm-download-count]

Thin layer on top of `execa` that allows executing multiple commands in parallel or in sequence with control for concurrency

Growthub Local is a control plane for forked worker kits. The CLI is the executor, the hosted app is the identity authority, the worker kit is the unit of portable agent infrastructure, and the fork is the operator's personal branch of that infrastructure

Speech-to-text, text-to-speech, speaker diarization, and speech enhancement using Next-gen Kaldi without internet connection

Universal build plugin to generate despia/local.json manifest for offline caching in Despia web-native apps. Supports Vite, Webpack, Rollup, Nuxt, SvelteKit, Astro, Remix, esbuild, Parcel, and more.

Fast HTML to Markdown converter optimized for LLM consumption

Spectyra Local Companion — local-first LLM optimization runtime for OpenClaw and other tools

MatsushibaDB - Next-Generation SQL Database with Local Support, Caching, and Async/Await

Local database for storing @trylocal/local.notes.

localForage bindings for Angular

Dynamodb migrations for devops

Use Google Fonts while you're offline or in development.

A plugin for Taqueria providing local sandbox capabilities built on Flextesa

A simple local JSON-based database that loads data into RAM for fast access.

AI-native CI/CD that runs on your machine. Zero config, zero cost. Works inside AI agent sandboxes (Claude, Cursor, Windsurf). 33 languages, 40+ frameworks, 20 deploy targets, 25 installable skills, Tailscale mesh, blast radius analysis.

Default to the locally installed version of your CLI, use the global one if not found.

Local-first knowledge packs for small LLMs.

CJS version: Tiny local JSON database for Node, Electron and the browser

Kolay Kullanımlı Türkçe JsonDB/YamlDB Database Modülü

Type safe IndexedDB access.

A drop in replacement for localStorage to add type safety and improved serialization.

A Gatsby plugin to download and prefetch [Google Fonts](https://fonts.google.com/). Can increase performance as opposed to loading webfonts from Google's external stylesheet.

**QVAC SDK** is the canonical entry point to develop AI applications with QVAC.

Liveblocks command line interface

Another simple JSON database

Let a globally installed package use a locally installed version of itself if available

A simple local database using FS

Sequelize plugin that simplifies building username and password login with Passport

Tiny local JSON database for Node, Electron and the browser; build for ESM and CommonJS and UMD

Wrapper to run lambda on express. Works great for running lambdas as an express server during development but is production ready. Developed to work in conjunction with matthewkeil/full-stack-pattern cdk construct.

emulate the `npm run-script` using stdio

Customize Your Own Local Mock Server

List of 1250+ generic, admin, mailer-daemon, and no-reply usernames reserved for security concerns. Made for Forward Email <https//forwardemail.net>.

Core apps for AI agents — database, storage, KV, and more. All local, zero external dependencies.

Vite plugin that wires a local domain via Caddy for your dev server.

A simple library to add HTTPS support to your HTTP NestJS application for local develoment, debugging, and testing.

Autonomous local development agent for Node.js. Zero cloud. Zero API keys required.

Local-first HTTP backend and runtime surface for codex-channels.

Serverless MongoDB local plugin

Local username and password with sessionId authentication strategy for Passport.

A lightweight local project management tool. Create, categorize, and prioritize tickets with a fast bullet-list interface, then export an Up Next worklist for AI tools.

Data source wrapper for local and remote files. Works on browsers, node.js and deno.

A simple local database for your Discord bot.

Storage service with TTL

Local and Cloud data storage module. (JSON, BSON, YAML, Mongodb)

Replace port numbers with stable, named .localhost URLs. For humans and agents.

Atomist Software Delivery Machine - Local

A simple & configurable abstraction for local/session storage in angular projects

Clear your local modules so you can reinstall them

Local agent package runner for AI agents

Unofficial iRobot Roomba 980 and wifi other enabled series library sdk

Recopy injected dependencies whenever a project is rebuilt in your PNPM workspace

MemTensor Local memory plugin for Hermes Agent

Process execution for humans

Check that a given ip address is private.

ES 2015 way of making private properties in class-based programming

Determine cross-browser if an event or anchor element should be handled locally.

AI-agnostic local memory layer for codebases. Index once, remember forever, switch AI freely.

Add a local Piiano Vault for testing purposes using testcontainers

Synapse - A Multi Agent Orchestrator

Local web app for browsing, searching, and editing AI conversation history and memory files

統一 AI 提供者路由器 - 自由切換本地 CLI、本地模型與線上 API

SQLite local vector store plugin for ragpipe

🪼 AI-powered CLI assistant for terminal productivity

Develop locally, proxy to prod, browser-sync, inject Portal Chrome.

A simple on-disk cache, supporting local and remote filesystem targets, with time based expiration policies.