Programming language: Java
License: GNU General Public License v3.0 or later
Tags: Projects     Job Scheduling    
Latest version: v1.2.2

JobRunr alternatives and similar libraries

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The ultimate library to perform background processing on the JVM. Dead simple API. Extensible. Reliable. Distributed and backed by persistent storage. Open and free for commercial use.



BackgroundJob.enqueue(() -> System.out.println("This is all you need for distributed jobs!"));

Incredibly easy way to perform fire-and-forget, delayed, scheduled and recurring jobs inside Java applications using only Java 8 lambda's. CPU and I/O intensive, long-running and short-running jobs are supported. Persistent storage is done via either RDBMS (e.g. Postgres, MariaDB/MySQL, Oracle, SQL Server, DB2 and SQLite) or NoSQL (ElasticSearch, MongoDB and Redis).

JobRunr provides a unified programming model to handle background tasks in a reliable way and runs them on shared hosting, dedicated hosting or in the cloud (hello Kubernetes) within a JVM instance.


Thanks for building JobRunr, I like it a lot! Before that I used similar libraries in Ruby and Golang and JobRunr so far is the most pleasant one to use. I especially like the dashboard, it’s awesome! Alex Denisov

View more feedback on jobrunr.io.


  • Simple: just use Java 8 lambda's to create a background job.
  • Distributed & cluster-friendly: guarantees execution by single scheduler instance using optimistic locking.
  • Persistent jobs: using either a RDMBS (four tables and a view) or a noSQL data store.
  • Embeddable: built to be embedded in existing applications.
  • Minimal dependencies: (ASM, slf4j and either jackson and jackson-datatype-jsr310, gson or a JSON-B compliant library).

Usage scenarios

Some scenarios where it may be a good fit:

  • within a REST api return response to client immediately and perform long-running job in the background
  • mass notifications/newsletters
  • calculations of wages and the creation of the resulting documents
  • batch import from xml, csv or json
  • creation of archives
  • firing off web hooks
  • image/video processing
  • purging temporary files
  • recurring automated reports
  • database maintenance
  • updating elasticsearch/solr after data changes
  • …and so on

You can start small and process jobs within your web app or scale horizontally and add as many background job servers as you want to handle a peak of jobs. JobRunr will distribute the load over all the servers for you. JobRunr is also fault-tolerant - is an external web service down? No worries, the job is automatically retried 10-times with a smart back-off policy.

JobRunr is a Java alternative to HangFire, Resque, Sidekiq, delayed_job, Celery and is similar to Quartz and Spring Task Scheduler.




Fire-and-forget tasks

Dedicated worker pool threads execute queued background jobs as soon as possible, shortening your request's processing time.

BackgroundJob.enqueue(() -> System.out.println("Simple!"));

Delayed tasks

Scheduled background jobs are executed only after a given amount of time.

BackgroundJob.schedule(Instant.now().plusHours(5), () -> System.out.println("Reliable!"));

Recurring tasks

Recurring jobs have never been simpler; just call the following method to perform any kind of recurring task using the CRON expressions.

BackgroundJob.scheduleRecurringly("my-recurring-job", Cron.daily(), () -> service.doWork());

Process background tasks inside a web application…

You can process background tasks in any web application and we have thorough support for Spring - JobRunr is reliable to process your background jobs within a web application.

… or anywhere else

Like a Spring Console Application, wrapped in a docker container, that keeps running forever and polls for new background jobs.

See https://www.jobrunr.io for more info.


#### Using Maven?

JobRunr is available in Maven Central - all you need to do is add the following dependency:


#### Using Gradle?

Just add the dependency to JobRunr:

implementation 'org.jobrunr:jobrunr:5.1.0'


Do you like to work Spring based?

Add the jobrunr-spring-boot-starter to your dependencies and you're almost ready to go! Just set up your application.properties:

# the job-scheduler is enabled by default
# the background-job-server and dashboard are disabled by default

Or do you prefer a fluent API?

Define a javax.sql.DataSource and put the following code on startup:

public class JobRunrApplication {

    public static void main(String[] args) {
        SpringApplication.run(JobRunrApplication.class, args);

    public JobScheduler initJobRunr(DataSource dataSource, JobActivator jobActivator) {
        return JobRunr.configure()


See CONTRIBUTING for details on submitting patches and the contribution workflow.

How can I contribute?

How to build?

  • git clone https://github.com/jobrunr/jobrunr.git
  • cd jobrunr
  • cd core/src/main/resources/org/jobrunr/dashboard/frontend
  • npm i
  • npm run build
  • cd -
  • ./gradlew publishToMavenLocal

Then, in your own project you can depend on org.jobrunr:jobrunr:1.0.0-SNAPSHOT.

*Note that all licence references and agreements mentioned in the JobRunr README section above are relevant to that project's source code only.