LoopBack makes it easy to build modern API applications that require complex integrations.
5,107
stars
8,653
commits
TypeScript
primary language
Sep 9, 2026
updated
README
LoopBack makes it easy to build modern applications that require complex integrations.
- Fast, small, powerful, extensible core
- Generate real APIs with a single command
- Define your data and endpoints with OpenAPI
- No maintenance of generated code
Status: General Availability
LoopBack 4 GA (General Availability) has been released in October 2018, read more in the announcement post.
The documentation website is https://loopback.io/doc/en/lb4/.
Learn about the latest and greatest features and technologies in LoopBack 4 by using it for your next project. Start by having a look at Getting Started.
Check the API documentation for all the API usages in each package.
Long Term Support
We don't provide any LTS version for LoopBack 4 yet. Please join the discussion in loopback-next#4398 if you are interested in a version that's less frequently changed.
| Version | Status | Published | EOL |
|---|---|---|---|
| LoopBack 4 | Current | Oct 2018 | Apr 2028 (minimum) |
| LoopBack 3 | End-of-Life | Dec 2016 | Dec 2020 |
| LoopBack 2 | End-of-Life | Jul 2014 | Apr 2019 |
Please refer to our Long Term Support Policy for more details.
Installation
Make sure you have the following installed:
| Package | Version/-s | Link | Note |
|---|---|---|---|
| Node.js | Maintenance LTS (v20) Active LTS (v22) Current (v24) | https://nodejs.org/en/about/releases/ | The use of the current version for production is not recommended. |
You can generate a project with our generator or with the CLI as follows:
npm create loopback
npx -p @loopback/cli lb app
To create your first LoopBack 4 application, see Getting Started.
Documentation
Contributing
See the following resources to get you started:
You can join the team by posting a comment to issue #110.
Security
If you think you have discovered a new security issue with any LoopBack package, please do not report it on GitHub. Instead, send an email to security@loopback.io with a full description and steps to reproduce.
See SECURITY.md for more details.
Team
Project Architect
| Raymond Feng |
|---|
 |
Technical Steering Committee
| Raymond Feng | Diana Lau | Mario Estrada | Rifa Achrinza | Francisco Buceta | Samarpan Bhattacharya |
|---|---|---|---|---|---|
|  |  |  |  |  |
Other Project Maintainers
| Nora Abdelgadir | Matthew Schnee | Hage Yaapa |
|---|---|---|
 |  |  |
| Agnes Lin | Madaky | Hugo Da Roit |
 |  |  |
| Nico Flaig | Denny Bartelt | Douglas McConnachie |
 |  |  |
| Samarpan Bhattacharya | Muhammad Aaqil | |
|  |
See all contributors.
Alumni
- @ritch
- @superkhau
- @rashmihunt
- @kjdelisle
- @virkt25
- @shimks
- @b-admike
- @deepakrkris
- @bajtos
- @jannyhou
- @emonddr
License
Contributors
(top 30 of 220)
Similar repos
Languages
TypeScript
76.3%
JavaScript
21.8%
EJS
1.1%
LoopBack makes it easy to build modern API applications that require complex integrations.
5,107
stars
8,653
commits
TypeScript
primary language
Sep 9, 2026
updated
README
LoopBack makes it easy to build modern applications that require complex integrations.
- Fast, small, powerful, extensible core
- Generate real APIs with a single command
- Define your data and endpoints with OpenAPI
- No maintenance of generated code
Status: General Availability
LoopBack 4 GA (General Availability) has been released in October 2018, read more in the announcement post.
The documentation website is https://loopback.io/doc/en/lb4/.
Learn about the latest and greatest features and technologies in LoopBack 4 by using it for your next project. Start by having a look at Getting Started.
Check the API documentation for all the API usages in each package.
Long Term Support
We don't provide any LTS version for LoopBack 4 yet. Please join the discussion in loopback-next#4398 if you are interested in a version that's less frequently changed.
| Version | Status | Published | EOL |
|---|---|---|---|
| LoopBack 4 | Current | Oct 2018 | Apr 2028 (minimum) |
| LoopBack 3 | End-of-Life | Dec 2016 | Dec 2020 |
| LoopBack 2 | End-of-Life | Jul 2014 | Apr 2019 |
Please refer to our Long Term Support Policy for more details.
Installation
Make sure you have the following installed:
| Package | Version/-s | Link | Note |
|---|---|---|---|
| Node.js | Maintenance LTS (v20) Active LTS (v22) Current (v24) | https://nodejs.org/en/about/releases/ | The use of the current version for production is not recommended. |
You can generate a project with our generator or with the CLI as follows:
npm create loopback
npx -p @loopback/cli lb app
To create your first LoopBack 4 application, see Getting Started.
Documentation
Contributing
See the following resources to get you started:
You can join the team by posting a comment to issue #110.
Security
If you think you have discovered a new security issue with any LoopBack package, please do not report it on GitHub. Instead, send an email to security@loopback.io with a full description and steps to reproduce.
See SECURITY.md for more details.
Team
Project Architect
| Raymond Feng |
|---|
|
Technical Steering Committee
| Raymond Feng | Diana Lau | Mario Estrada | Rifa Achrinza | Francisco Buceta | Samarpan Bhattacharya |
|---|---|---|---|---|---|
| | | | | |
Other Project Maintainers
| Nora Abdelgadir | Matthew Schnee | Hage Yaapa |
|---|---|---|
| | |
| Agnes Lin | Madaky | Hugo Da Roit |
| | |
| Nico Flaig | Denny Bartelt | Douglas McConnachie |
| | |
| Samarpan Bhattacharya | Muhammad Aaqil | |
| |
See all contributors.
Alumni
- @ritch
- @superkhau
- @rashmihunt
- @kjdelisle
- @virkt25
- @shimks
- @b-admike
- @deepakrkris
- @bajtos
- @jannyhou
- @emonddr
License
Similar repos
Contributors
(top 30 of 220)
Languages
TypeScript
76.3%
JavaScript
21.8%
EJS
1.1%