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RxDB VS Reflect.net

Compare RxDB VS Reflect.net and see what are their differences

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RxDB logo RxDB

A fast, offline-first, reactive Database for JavaScript Applications

Reflect.net logo Reflect.net

High-performance sync for multiplayer web apps. Up to 120 FPS sync, automatic persistence, server authority, fine-grained auth, and more...
  • RxDB Landing page
    Landing page //
    2023-07-20

RxDB, which stands for Reactive Database, is a JavaScript-based NoSQL database designed for a wide range of applications such as websites, hybrid apps, Electron apps, progressive web apps, and Node.js. The "reactive" aspect of RxDB allows you not only to retrieve the current state of the database but also to subscribe to all changes in the state, including query results or specific fields within a document. This feature is particularly advantageous for real-time user interface applications, as it facilitates development and offers notable performance benefits. Additionally, RxDB can be utilized to build efficient backends in Node.js.

Not present

RxDB features and specs

  • Offline-First Architecture
    RxDB is designed with an offline-first approach, allowing applications to function seamlessly without a constant internet connection by utilizing local storage and synchronizing with the server when online.
  • Reactive Data Stores
    The library offers real-time data synchronization and reactive data stores, enabling automatic updates to the UI when the underlying database changes.
  • Cross-Platform Compatibility
    RxDB works across various platforms, including web browsers, Node.js, and mobile devices, providing flexibility for developers in building cross-platform applications.
  • Flexible Schema Management
    RxDB supports JSON Schema for defining data models, allowing developers to enforce data consistency and validation effectively.
  • Replication and Sync
    Comes with built-in replication features that ensure easy data synchronization between client and server databases, helping maintain data consistency across different devices and users.

Possible disadvantages of RxDB

  • Complex Initial Setup
    Setting up RxDB can be complex for newcomers, as it requires an understanding of its architecture and setup process, including replication and schema management.
  • Limited Community and Resources
    Compared to more established databases, RxDB has a smaller community, which can lead to fewer resources, tutorials, and third-party integrations available for developers.
  • Performance Overheads
    Due to its reactive nature and rich feature set, RxDB might introduce performance overheads, particularly in large-scale applications with extensive data operations.
  • Dependency on Third-Party Libraries
    RxDB depends on several third-party libraries, like PouchDB for local storage, which may lead to challenges in keeping dependencies updated and managing compatibility issues.
  • Browser Storage Limitations
    Since its offline capabilities rely on local storage, RxDB is subject to the inherent limitations of browser storage, which may affect data-heavy applications.

Reflect.net features and specs

No features have been listed yet.

RxDB videos

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Reflect.net videos

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#2 – Aaron Boodman: From Google Gears to Replicache & Reflect.net

Category Popularity

0-100% (relative to RxDB and Reflect.net)

RxDB

Reflect.net

Databases
100 100%
Databases
0% 0
Developer Tools
78 78%
Developer Tools
22% 22
NoSQL Databases
100 100%
NoSQL Databases
0% 0
Identity And Access Management
0 0%
Identity And Access Management
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare RxDB and Reflect.net

RxDB Reviews

10 Best Open Source Firebase Alternatives
Reactive Database or RxDB is a real-time NoSQL database for JavaScript apps such as progressive web apps, electron apps, PWAs, hybrid apps, and websites. Reactive means that you get to query the current state while subscribing to all state changes like the result of a single field of a document or query.
Source: rigorousthemes.com

Reflect.net Reviews

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Social recommendations and mentions

Based on our record, RxDB should be more popular than Reflect.net. It has been mentiond 14 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

RxDB mentions (14)

  • Offline-First Landscape – 2025
    I’m doing offline-first apps at work and want to emphasize that you’re constraining yourself a lot trying to do this. As mentioned, everything fast(ish) is using SQLite under the hood. If you don’t already know, SQLite has a limited set of types, and some funky defaults. How are you going to take this loosey-goosey typed data and store it in a backend database when you sync? What about foreign key... - Source: Hacker News / about 1 month ago
  • Stop Syncing Everything
    > I'm thinking to give it a try in one of my React Native apps that face very uncertain connectivity. Some similar stuff you may want to investigate (no real opinion, just sharing since I've investigated this space a bit): - https://rxdb.info. - Source: Hacker News / 6 months ago
  • Show HN: Triplit – Open-source syncing database that runs on server and client
    Looks like it could be a more batteries-included/opinionated alternative to RxDB (https://rxdb.info). The relational queries might help some people who tend to think in SQL as opposed to documents (as in CouchDB or MongoDB) and the WebSockets for synchronization will help people get started more quickly. (RxDB provides interfaces for those who want to implement their own storage engine and/or synchronization... - Source: Hacker News / over 1 year ago
  • HackNote
    Some years ago "offline-first" was a thing: https://web.archive.org/web/20170720174332/http://hood.ie/initiatives/#offline-first Primarily based on PouchDB/CouchDB. Now the site redirects to RxDB. https://rxdb.info/ There's still a site by that name but I don't quite understand what's the intention https://offlinefirst.org/. - Source: Hacker News / over 1 year ago
  • Ask HN: How Can I Make My Front End React to Database Changes in Real-Time?
    I'm interested in this problem also! I think there is a large overlap with projects that market/focus on offline-first experiences. AFAIK this problem can be solved by: 1) Considering a client-side copy of the database that gets synced with the remote DB. This is an approach [PowerSync](https://www.powersync.com/) and [ElectricSql](https://electric-sql.com/) and [rxdb](https://rxdb.info/) take! - Source: Hacker News / over 1 year ago
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Reflect.net mentions (3)

  • Automerge: A library of data structures for building collaborative applications
    In a recent (abandoned) project, I used Reflect: https://reflect.net/ It was by far the most developer-friendly experience I've had trying to implement collaborative editing. The one thing it didn't have that YJS did was built-in undo/redo. - Source: Hacker News / about 1 year ago
  • Are Sync Engines The Future of Web Applications?
    Crazy plot twist (last minute edit): As I was about to publish this post I discovered that Replicache is going to be opened sourced in the near future and that its parent company is planning to launch a new sync-engine called "Zero". Here is the official announcement. It reads: "We will be open sourcing Replicache and Reflect. Once Zero is ready, we will encourage users to move." Ironically, Zero seems to be yet... - Source: dev.to / over 1 year ago
  • How I built a Multiplayer App in 3 days
    As the Monday began I started reading documentation and looking into the tech I wanted to use. For most of the stack I went with things I know. But for the multiplayer part I had to read up and understand the core concepts behind Replicache. While reading I came across their hosted service Reflect. This was a perfect fit as time was of the essence and I would not have to build my own Replicache backend! It's... - Source: dev.to / over 1 year ago

What are some alternatives?

When comparing RxDB and Reflect.net, you can also consider the following products

Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.

Dock.io - Web3 auth that puts user privacy first - and it’s free!

MySQL - The world's most popular open source database

Automerge - A JSON-like data structure (a CRDT) that can be modified concurrently by different users, and merged again automatically.

Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.

Yjs - A CRDT framework with a powerful abstraction of shared data, Shared data types for building collaborative software

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