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Flutter database for fast Dart object persistence 💙

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ObjectBox Flutter database is a great option for storing data in your cross-platform apps. It uses minimal CPU, memory and battery, which makes it an ideal choice for mobile and IoT devices. It is made for efficient data access and is 10x faster than any alternative. See the performance benchmarks below. No need to learn SQL, as our NoSQL database uses pure Dart API that is easy to work with and can be integrated in minutes. Apart from that, we built a data synchronization solution that allows you to choose which objects to sync when and therefore keep your cloud costs low.

Features

🏁 High performance - improving response rates and enabling real-time applications.
🪂 ACID compliant - Atomic, Consistent, Isolated, Durable.
💻 Multiplatform - Android, iOS, macOS, Linux, Windows.
🌱 Scalable - grows with your app, handling millions of objects with ease.

🔗 Relations - object links / relationships are built-in.
💐 Queries - filter data as needed, even across relations.
🦮 Statically typed - compile time checks & optimizations.
📃 Schema migration - change your model with confidence.

Oh, and there is one more thing... 😮 Data Sync - keeps data in sync offline or online, between devices and servers.

Getting Started (in your App)

To start using ObjectBox in your Flutter/Dart app, head over to

the ObjectBox pub.dev page or
check out our Getting Started Guide.

Getting Started with this Repository

Do you want to check out the ObjectBox code itself? E.g. see in action, run tests, or even contribute code? Great! Clone/check out this repository and run this to generate code and get you started quickly:

./tool/init.sh

Also, make sure to have a look at the contribution guidelines - we are looking forward to your contribution.

Flutter Database Performance Benchmarks

We tested across the four main database operations, CRUD (create, read, update, delete). Each test was run multiple times and executed manually outside of the measured time. Data preparation and evaluation were also done outside of the measured time.

Here are the benchmarks for ObjectBox vs sqflite vs Hive 👇

You can run these yourself using our objectbox-dart-performance Flutter benchmark app.

Do you 💙 ObjectBox?

We strive to bring joy to Flutter developers and appreciate all kind of feedback, both positive and negative. What do you love? What's amiss? Where do you struggle in everyday app development?

We're looking forward to receiving your comments and requests:

Add GitHub issues
Upvote issues you find important by hitting the 👍/+1 reaction button
Fill in the feedback form to help us improve our products
Drop us a line on Twitter via @ObjectBox_io
⭐ us, if you like what you see

Thank you! 🙏

Keep in touch: For general news on ObjectBox, check our blog!

Packages

This repository holds all ObjectBox Dart/Flutter packages as separate directories:

objectbox - main library code
objectbox_generator - code generator
objectbox_flutter_libs - core binary library dependency for Flutter (Android/iOS) - no dart/flutter code
objectbox_sync_flutter_libs - core binary library dependency with ObjectBox Sync enabled
benchmark - used internally to microbenchmark and compare various implementations during development of objectbox-dart

There's also a separate repository benchmarking objectbox (and other databases) in Flutter: objectbox-dart-performance. And another one testing and comparing the performance of our FlatBuffers fork vs the upstream version: flatbuffers-benchmark.

Other languages/bindings

ObjectBox supports multiple platforms and languages:

ObjectBox Java / Kotlin: runs on Android, desktop, and servers.
ObjectBox Swift: build fast mobile apps for iOS and macOS
ObjectBox Go: great for data-driven tools and embedded server applications
ObjectBox C and C++: native speed with zero copy access to FlatBuffer objects

License

Copyright 2019-2022 ObjectBox Ltd. All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

chi-w-ng / objectbox-dart