# Nextdoor Tech Stack

Nextdoor uses 72 tools and technologies to build, market, and sell its products.

Source: https://himalayas.app/companies/nextdoor/tech-stack

## Languages & Frameworks

| Technology | What it is |
| --- | --- |
| Django | The Web framework for perfectionists with deadlines |
| Bootstrap | Simple and flexible HTML, CSS, and JS for popular UI components and interactions |
| Backbone.js | Give your JS App some Backbone with Models, Views, Collections, and Events |
| JavaScript | Lightweight, interpreted, object-oriented language with first-class functions |
| Python | A clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java. |
| HTML5 | 5th major revision of the core language of the World Wide Web |
| Java | A concurrent, class-based, object-oriented, language specifically designed to have as few implementati... |
| CSS 3 | The latest evolution of the Cascading Style Sheets language |
| Kotlin | Statically typed Programming Language targeting JVM and JavaScript |
| Swift | An innovative new programming language for Cocoa and Cocoa Touch. |
| Go | An open source programming language that makes it easy to build simple, reliable, and efficient software |
| Objective-C | The primary programming language you use when writing software for OS X and iOS |
| GraphQL | A data query language and runtime |
| fancybox | JavaScript lightbox library for presenting various types of media. |

## Development

| Technology | What it is |
| --- | --- |
| Xcode | The complete toolset for building great apps |
| Webpack | A bundler for javascript and friends |
| Istio | Open platform to connect, manage, and secure microservices, by Google, IBM, and Lyft |
| Envoy | Originally built at Lyft, Envoy is a high performance C++ distributed proxy designed for single services and applications, as well as a communication bus and “universal data plane” designed for large microservice “service mesh” architectures. |

## Libraries

| Technology | What it is |
| --- | --- |
| Emotion | The Next Generation of CSS in JS |
| React | A JavaScript library for building user interfaces |
| jQuery | The Write Less, Do More, JavaScript Library. |
| Moment.js | A JavaScript date library for parsing, validating, manipulating, and formatting dates |
| Lodash | A JavaScript utility library |
| Underscore | JavaScript's utility _ belt |
| MobX | MobX is a battle tested library that makes state management simple and scalable by transparently applying functional reactive programming (TFRP). React and MobX together are a powerful combination. React renders the application state by providing mechanisms to translate it into a tree of renderable components. MobX provides the mechanism to store and update the application state that React then uses. |

## Application Hosting

| Technology | What it is |
| --- | --- |
| Amazon EC2 | Scalable, pay-as-you-go compute capacity in the cloud |
| Socket.IO | Realtime application framework (Node.JS server) |
| NGINX | A high performance free open source web server powering busiest sites on the Internet. |
| Amazon Web Services (AWS) | Amazon Web Services is a subsidiary of Amazon providing on-demand cloud computing platforms and APIs to individuals, companies, and governments, on a metered pay-as-you-go basis. |

## Data Stores

| Technology | What it is |
| --- | --- |
| Amazon S3 | Store and retrieve any amount of data, at any time, from anywhere on the web |
| PostgreSQL | A powerful, open source object-relational database system |
| Redis | An in-memory database that persists on disk |
| Kafka | Distributed, fault tolerant, high throughput pub-sub messaging system |
| TimescaleDB | TimescaleDB is a time-series SQL database providing fast analytics, scalability, with automated data management on a proven storage engine |

## Application Utilities

| Technology | What it is |
| --- | --- |
| Stream | Build scalable feeds, activity streams & chat in a few hours instead of months. |
| HackerOne | The Vulnerability Management & Bug Bounty Platform |
| OneTrust | Privacy, security and governance technology platform |
| Amazon Route 53 | A highly available and scalable Domain Name System (DNS) web service. |
| Google Maps | Build highly customisable maps with your own content and imagery |
| Mapbox | Design and publish beautiful maps |
| Google reCaptcha | A free service that protects your website from spam and abuse |

## Analytics

| Technology | What it is |
| --- | --- |
| Google Tag Manager | Quickly and easily update tags and code snippets on your website or mobile app |
| Segment | A single hub to collect, translate and send your data with the flip of a switch. |
| Looker | Pioneering the next generation of BI, data discovery & data analytics |
| Google Analytics | Enterprise-class web analytics. |
| Facebook Pixel | A piece of code for your website that lets you measure, optimise and build audiences for your advertis... |

## Monitoring

| Technology | What it is |
| --- | --- |
| Sentry | See performance issues, fix errors faster, and optimize code health. |
| Datadog | Unify logs, metrics, and traces from across your distributed infrastructure. |

## Assets and Media

| Technology | What it is |
| --- | --- |
| Cloudflare | The Web Performance & Security Company. |
| Amazon CloudFront | Content delivery with low latency and high data transfer speeds |
| Vimeo | Vimeo is a video hosting, sharing, and services platform provider. |

## Design

| Technology | What it is |
| --- | --- |
| Figma | The collaborative interface design tool. |

## Collaboration

| Technology | What it is |
| --- | --- |
| DocuSign | The fastest, most secure way to sign, send, and store documents in the cloud. |
| Slack | Bring all your communication together in one place |
| Jira | The #1 software development tool used by agile teams to plan, track, and release great software. |
| Google Workspace | Collaboration and productivity apps for Business. |
| Confluence | One place to share, find, and collaborate on information |

## Communications

| Technology | What it is |
| --- | --- |
| SendGrid | Email Delivery. Simplified. |
| Mailgun | The Email Service for Developers. |
| Amazon SES | Bulk and transactional email-sending service. |

## Back Office

| Technology | What it is |
| --- | --- |
| Workday | HR and finance apps built for the future |
| Greenhouse | Greenhouse's applicant tracking system and recruiting software is designed to help make companies great at hiring and hire for what's next. |
| NetSuite | NetSuite is the leading integrated cloud business software suite, including business accounting, ERP, CRM and ecommerce software. |

## Marketing and Sales Tools

| Technology | What it is |
| --- | --- |
| Facebook Ads | Social network advertising |
| Twitter Ads | It allows businesses and brands to connect with a relevant and engaged audience |
| Salesforce | Connect to your customers in a whole new way |
| HubSpot | All the software you need to do inbound marketing. |
| Google Ads | An online advertising solution that businesses use to promote their products and services on Google Search, YouTube and other sites across the web. It also allows advertisers to choose specific goals for their ads, like driving phone calls or website visits. |
| 6sense | Identify accounts looking for your solution. Prioritize efforts. Engage the right way. Measure what matters. |
| LinkedIn Ads | Drive website traffic, build awareness & generate higher quality leads with LinkedIn ads. Maximise B2B growth with personalised ads on the #1 platform for B2B lead generation. |

## Payments

| Technology | What it is |
| --- | --- |
| Stripe | Payments for developers |

## Company profile

[Nextdoor](https://himalayas.app/companies/nextdoor.md)