Bref is an open-source framework that helps developers build and deploy PHP applications on AWS Lambda. It provides PHP runtimes and tools for running web applications, APIs, command-line tasks, scheduled jobs, and event-driven services without managing traditional servers. Applications are configured with a serverless.yml file and deployed to AWS, where Lambda scales resources automatically as demand changes.

Bref supports Laravel, Symfony, and other PHP frameworks, with options for HTTP handling, background jobs, file processing, WebSockets, and integrations with services such as SQS, EventBridge, and S3. Its documentation covers setup, deployment, local development, monitoring, performance, costs, and common use cases. Developers can also work with AWS CDK, Terraform, and CloudFormation-based infrastructure.

The project emphasizes simpler operations, automatic scaling, and paying for compute while code runs rather than maintaining idle servers. Bref is supported by a developer community, sponsors, and consulting and support offerings through Bref Cloud. It is used by teams to run production websites, APIs, and serverless workloads, including applications handling large volumes of requests and messages.