SeaweedFS

Open-source distributed storage system with an S3-compatible API, built to store and serve very large numbers of files on your own servers.

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Where it fits

File Storage · Self-hosted object storageRunning your own S3-compatible storage for lots of files, from one server up to a cluster.Trade-off: Several components (master, volume, filer, S3 gateway) to learn; durability and backups are yours to get right.

Who uses it

No maker's live product on record yet, and 2 open-source projects that declare it in their code.

Declared in code 2How evidence is collected →

We haven't found a maker's live product that uses SeaweedFS yet — only the open-source projects below, which declare it in their code.

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PostHog Product analytics with session replay, feature flags, A/B tests and surveys in one open-…File StorageIn its code · source ↗

vibe God's chosen objectively true vibecoding template 🛕File StorageIn its code · source ↗

Open source: a project that declares SeaweedFS as a dependency in its public code — verifiable, but not necessarily a live product.

Alternatives to SeaweedFS

All alternatives by situation →

Amazon S3Apps already on AWS, or ones that need lifecycle rules, storage tiers and event triggers.

Cloudflare R2Files that get downloaded often — the S3 API without egress fees.Free tier4 makers · file storage

UploadThingTypeScript apps that want typed upload endpoints and drop-in upload components instead of wiring presigned URLs.Free tier

Vercel BlobNext.js apps hosted on Vercel that need simple uploads with no extra account.Free tier

SupabaseApps already on Supabase — storage access follows the same row-level security policies as your data.Open sourceFree tier3 makers · file storage

UppyAn open-source upload widget with drag-and-drop, progress, resumable uploads and direct-to-S3, in front of whatever bucket you choose.Open sourceFree tier2 makers · file storage

MinIOThe long-standing S3-compatible server for self-hosting, with many existing guides, Docker setups and client SDKs.Open sourceFree tier1 makers · file storage

GarageA small, single-binary S3-compatible store for a few self-hosted machines, even in different locations.Open sourceFree tier

Questions makers ask about SeaweedFS

Is SeaweedFS free?

Yes — there is a free tier a small product can run on; paid use starts at $2/TB/mo. source ↗

Is SeaweedFS open source or self-hostable?

Open source, and you can self-host it. source ↗

Can AI coding agents work with SeaweedFS?

No llms.txt, official MCP server or CLI found yet.

Who uses SeaweedFS?

No maker's live product we track yet; 2 open-source projects declare it in their code. source ↗