MooseFS vs SeaweedFS

MooseFS is distributed storage software that combines data held across multiple servers into one resource. It can be mounted as a POSIX filesystem, used as a block device, or accessed through the C API. Reads and writes run across multiple chunkservers, so adding servers can increase both storage capacity and bandwidth. MooseFS replicates data chunks and restores missing copies after disk or node loss. The Community edition is open source under GPLv2, with one active master and single-parity erasure coding. Personal provides the full Pro feature set for non-commercial use, free up to 20 TiB of used raw space; beyond that, the listed price is €9 as a one-time purchase for each TiB. Pro adds synchronized master failover and support for clusters spanning locations. MooseFS 5 adds cluster-wide authentication. Official packages are offered for Linux distributions, FreeBSD, Raspberry Pi OS, and macOS; macOS requires macFUSE and macOS 12 or later. The native Windows client is included with Pro.

SeaweedFS is a distributed storage system that serves S3 objects, Iceberg tables, and POSIX files from one cluster. It supports S3, POSIX mounts, HDFS-compatible access, an Iceberg REST catalog, and WebDAV. Its built-in Iceberg catalog supports queries with Spark, Trino, Dremio, and DuckDB. The product describes scaling from gigabytes to petabytes and supporting billions of files. Development and testing under 25 TB are free, but production deployments require a paid license regardless of size. Monthly capacity licensing is $2 a month, based on used storage including replication or erasure-coding overhead; yearly licensing is $20 a year. Enterprise features include deleted-file recovery within a configurable retention window, point-in-time restoration, repair of missing or corrupted erasure-coding shards, and OIDC sign-in with role mapping. The free 25 TB trial limits deleted-file recovery retention to one hour. Enterprise support is optional and priced separately from capacity licensing. Community support is free and has no guaranteed response time. SeaweedFS is available for Linux, macOS, and Windows, with API access and self-hosted deployment.