bazel-remote vs Depot

bazel-remote is free, Apache-2.0-licensed open-source software that runs as a self-hosted HTTP/1.1 and gRPC server for Bazel remote caching and other REAPI clients. Cache data can stay on disk with a configured maximum size; least recently used files are removed when that limit is reached. Storage backends include S3, Google Cloud Storage, and an experimental Azure Blob Storage proxy. The server exposes HTTP REST endpoints and REAPI v2 ActionCache, ContentAddressableStorage, Capabilities, and Byte Stream services over gRPC. Zstandard-compressed CAS blobs can reduce network use and increase effective cache capacity. Prometheus metrics are available for HTTP and gRPC endpoints. Deployment options include Docker images, Docker Compose, Kubernetes examples, or a standalone Linux binary, including ARM64 Docker deployments such as Raspberry Pi. Authentication supports .htpasswd-style credentials or mutual TLS; LDAP is experimental, and only one mechanism can be active. TLS settings are configurable. The default permits unauthenticated access, so operators must configure protection.

Depot provides software delivery tools spanning source control, builds, CI runners, sandboxes, caches, and registries. Its container build service is a drop-in replacement for Docker builds, with persistent caching and native x86 and Arm support. Depot CI runs existing GitHub Actions workflows as a programmable, debuggable CI service, while Depot Registry is an OCI-compliant registry for builds, pull-through caching, and other artifacts. Integrations include GitHub Actions, CircleCI, GitLab CI, Google Cloud Build, Travis CI, Bitbucket Pipelines, Buildkite, Jenkins, and AWS CodeBuild. Cache integrations cover Bazel, Go, Gradle, Maven, Pants, sccache, Nx, and Turborepo. Each build and CI run is isolated in a dedicated virtual machine. Depot says communications use TLS and storage is encrypted at rest; it also identifies SOC 2 Type 2 compliance and time-bound, permission-based debugging access. Plans start at $20 a month, billed monthly, with a 7-day trial and no free plan. Developer includes community support; Business includes Slack Connect support.