bazel-remote vs Buildless

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.

Buildless is a remote build cache service for teams that want build tools to reuse compiled output rather than repeat compilations. It supports Gradle, Maven, Turborepo, Bazel, CCache, and SCCache, with the maker describing its main integrations as drop-in and requiring no changes to code, the build process, or cloud setup. The docs also list REST/gRPC, Redis (RESP), and GitHub Actions. Its described infrastructure combines Cloudflare edge routing with a Redis-compatible backend through Dragonfly Cloud, plus tunable replication and durable in-memory storage. The Team plan adds premium caching with replication, edge serving, and persistence. Individual / OSS is free, with one project, one user, 3GB of cache, and 100GB transfer. Team is free during the public beta, with five projects, up to 50 users, 10GB cache, and 1TB transfer. Builds are not halted when storage or transfer is exceeded, but overages are charged. Business pricing is TBD and lists private cloud or on-prem options.