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Best S3-Compatible Object Storage Specialists (Independent Clouds)

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Independent S3-compatible object storage specialist clouds

Some clouds sell only S3-compatible object storage, priced and tuned for it. Compare these specialists if you want predictable storage costs without the surprise egress bills of the hyperscalers.

These specialists are one category of our complete list of S3-compatible storage providers. Several are built into Blober as their own providers, and the rest connect through the generic S3-Compatible provider. Regions change over time, so confirm the endpoint in the provider's dashboard. The endpoint formats come from each provider's documentation and rclone's S3 reference[1].

Each entry also gives the addressing style. Virtual-hosted puts the bucket in the subdomain (https://my-bucket.s3.example.com), and path-style puts it in the URL path (https://s3.example.com/my-bucket). Most providers here use virtual-hosted. Blober picks the style from the endpoint field you fill in, and although the formats below are bare hostnames, the field needs https:// in front. The endpoint setup notes have the full explanation.

Wasabi Hot Cloud Storage

Wasabi is flat-rate object storage, popular for backups and media archives. Its published pricing does not bill egress or API requests separately. A 1 TB minimum and a 90-day minimum storage duration apply[2]. Blober has Wasabi built in.

  • Endpoint format: s3.<region>.wasabisys.com (for example s3.wasabisys.com for US East 1, s3.eu-central-1.wasabisys.com).
  • Regions: Virginia (US East 1 and 2), Texas, Oregon, San Jose, Toronto, Amsterdam, Frankfurt, London (two regions), Paris, Milan, Tokyo, Osaka, Singapore, and Sydney[3].
  • Addressing: virtual-hosted.

Backblaze B2 Cloud Storage

Backblaze B2 has some of the lowest per-GB object storage prices, and an S3-compatible API alongside its native one. Egress is free up to 3x your average monthly stored data, and egress above that is billed per GB[4]. Blober has Backblaze B2 built in, and How to Switch Wasabi to Backblaze B2 covers moving between the two.

  • Endpoint format: s3.<region>.backblazeb2.com (for example s3.us-west-004.backblazeb2.com).
  • Regions: US West, US East, and EU Central account regions. Backblaze says an account is associated with a single region and S3 endpoints use s3.<region>.backblazeb2.com, so copy the exact endpoint from the bucket's Endpoint field[5].
  • Addressing: virtual-hosted.

Cloudflare R2

Cloudflare R2 is object storage served from Cloudflare's global edge network. It has no egress bandwidth charges, though operation and Infrequent Access retrieval charges can still apply[6]. Blober has Cloudflare R2 built in; for an example migration, see How to Move Azure Blob to Cloudflare R2.

  • Endpoint format: <account-id>.r2.cloudflarestorage.com.
  • Regions: buckets are distributed automatically, and the region is auto. Cloudflare documents auto as the S3 API bucket region and accepts empty and us-east-1 as aliases for compatibility[7].
  • Addressing: virtual-hosted.

Rabata

Rabata is S3-compatible cloud storage with two flat-priced tiers and no API request fees. Hot Storage (us-east-1) is $0.01/GB and Backup (eu-west-2) is $49 per 10 TB block. Ingress is free, and Backup has no egress fees, with egress capped at 2x your stored volume[8]. Rabata is built into Blober as well.

  • Endpoint format: s3.<region>.rabata.io (for example s3.eu-west-2.rabata.io).
  • Regions: US East (us-east-1, N. Virginia) and EU West (eu-west-2, London). Rabata's quickstart examples use s3.us-east-1.rabata.io, and its billing page maps Hot Storage to us-east-1 and Backup to eu-west-2[9].
  • Addressing: virtual-hosted.

Storj

Storj is decentralized cloud storage with an S3-compatible hosted gateway. Data is encrypted and erasure-coded across a global network of nodes, and S3 credentials come from an access grant. Storj's S3 compatibility table lists partial support for some listing and multipart-copy behavior, so verify any workflow that depends on exact listing order, ListMultipartUploads, or UploadPartCopy[10]. Storj also appears on our decentralized storage page.

  • Endpoint format: gateway.storjshare.io (plus regional gateways gateway.eu1.storjshare.io, gateway.us1.storjshare.io, gateway.ap1.storjshare.io).
  • Regions: global. Set S3-compatible tools to global when they require a region[11].
  • Addressing: virtual-hosted.

IDrive e2

IDrive e2 is low-cost S3-compatible object storage with free egress allowances, aimed at backup and archive. The endpoint host is specific to your account and region, so copy it from the IDrive e2 dashboard.

  • Endpoint format: <region>.idrivee2-XX.com, where the host is shown in your console (for example q9d9.la12.idrivee2-5.com).
  • Regions: many across the US, Europe, and Asia-Pacific[12].
  • Addressing: virtual-hosted.

STRG

STRG is S3-compatible object storage from Stack Holdings in Vienna, Austria. Storage is $6.80 per TB a month, with all egress and standard API requests included and the first 10 GB free[13]. Which S3-Compatible Storage Has No Egress Fees? compares it with the other zero-egress providers. Blober has STRG built in: you enter only an access key ID and a secret access key.

  • Endpoint format: s3.<region>.strg.com (for example s3.eu-central-1.strg.com).
  • Regions: US East (us-east-1, Virginia) and EU Central (eu-central-1, Amsterdam)[14].
  • Addressing: path-style and virtual-hosted. Use path-style for a bucket name that contains a dot[15].

Cubbit DS3

Cubbit DS3 is a geo-distributed, S3-compatible object storage platform with European data residency. If you use a custom tenant, connect to the tenant-specific host, because the generic endpoint will not work for it[16].

  • Endpoint format: s3.cubbit.eu, or s3.<tenant>.cubbit.eu for a custom tenant.
  • Regions: geo-distributed. Cubbit describes DS3 as an S3-compatible object-storage platform that fragments data across its distributed network, so confirm the current region and tenant endpoint in your Cubbit console[17].
  • Addressing: virtual-hosted.

Impossible Cloud

Impossible Cloud is a European S3-compatible object storage provider with regions in Europe and the US. Its public limitations page documents bucket and object limits and the rules for conflicting object names. Ordinary transfers (browse, upload, download, copy) should work; test any workflow that depends on AWS-only edge behavior or on folder and object keys that conflict[18].

  • Endpoint format: <region>.storage.impossibleapi.net (for example eu-central-2.storage.impossibleapi.net).
  • Regions: Frankfurt (eu-central-2), Amsterdam (eu-west-1), London (eu-west-2), Paris (eu-west-3), Poznan (eu-east-1), Copenhagen (eu-north-1), and New York (us-east-1)[19].
  • Addressing: virtual-hosted.

Seagate Lyve Cloud

Seagate Lyve Cloud is enterprise-grade S3-compatible storage from Seagate. Copy the S3 endpoint for your account and region from Lyve Cloud. Don't use lyve.seagate.com as a generic endpoint[20].

  • Endpoint format: s3.<region>.<account>.lyve.seagate.com, where the account name is part of the host (for example s3.us-west-1.global.lyve.seagate.com).
  • Regions: US West (California), EU West (Ireland), and more.
  • Addressing: virtual-hosted.

Synology C2 Object Storage

Synology C2 is S3-compatible object storage from the NAS maker, with no deletion penalties. Under C2 OneStorage pricing, C2 Object Storage lists no charge for egress or API requests[21]. It is a natural fit for Synology NAS owners who want an off-site S3 copy.

  • Endpoint format: <region>.s3.synologyc2.net (for example eu-001.s3.synologyc2.net, us-001.s3.synologyc2.net).
  • Regions: Europe and the US. Synology documents these data centers on its object-storage overview and sells C2 Object Storage under C2 OneStorage pricing[22].
  • Addressing: virtual-hosted.

MEGA S4 Object Storage

MEGA S4 is an S3-compatible object store with regional endpoints and a published free-egress allowance. MEGA says buckets are not restricted to one region, so pick the endpoint closest to your users or workloads. Its object-storage page describes free egress of up to 5x average monthly stored data; check the current plan terms before using it for high-volume delivery[23].

  • Endpoint format: s3.<region>.megas4.com (for example s3.eu-amsterdam.megas4.com).
  • Regions: Amsterdam, Luxembourg, Paris, Barcelona, Montreal, Vancouver, Tokyo[24].
  • Addressing: virtual-hosted.

Tebi

Tebi is a geo-distributed S3-compatible object store with a global endpoint and optional regional endpoints. Its storage classes control where data is physically stored and how many copies are kept; set placement and performance in the console[25].

  • Endpoint format: s3.tebi.io.
  • Regions: global endpoint via GeoDNS, plus Germany, US East, US West, and Singapore regional S3 endpoints[26].
  • Addressing: virtual-hosted.

Storadera

Storadera is a European S3-compatible object storage provider with flat pricing. It publishes no upload charges, and no download charges under fair use, which allows monthly downloads up to the amount you store[27].

  • Endpoint format: <region>.s3.storadera.com (for example eu-east-1.s3.storadera.com).
  • Regions: Europe; confirm the current regional endpoint in the console.
  • Addressing: virtual-hosted.

Telnyx Cloud Storage

Telnyx Cloud Storage is S3-compatible object storage from the communications platform Telnyx. Billing is based on stored bytes and API operation counts, with separate US and EU prices for storage and operations[28].

  • Endpoint format: <region>.telnyxcloudstorage.com (for example us-central-1.telnyxcloudstorage.com).
  • Regions: US Central, US East, US West, and EU Central[29].
  • Addressing: virtual-hosted.

Tigris

Tigris is a globally distributed S3-compatible object store (built with Fly.io) that routes through a single endpoint. Buckets can be global, multi-region, dual-region, or single-region, and that one endpoint handles the routing for all of them.

  • Endpoint format: t3.storage.dev.
  • Regions: San Jose, Chicago, Ashburn, Amsterdam, Frankfurt, London, Singapore, Tokyo. Set the region to auto. The same page lists more Fly.io locations, so check the docs for the current list[30].
  • Addressing: virtual-hosted.

FileLu S5

FileLu S5 is an S3-compatible object store with a single global endpoint and regional options. Its pricing has no separate transfer or API charges.

  • Endpoint format: s5lu.com (global), with us.s5lu.com, eu.s5lu.com, ap.s5lu.com, and me.s5lu.com for regions.
  • Regions: Global, US East, EU Central, AP Southeast, ME Central[31].
  • Addressing: not explicitly documented. Start with path-style in the generic S3-Compatible provider unless your FileLu client configuration confirms virtual-hosted support.

Petabox

Petabox is S3-compatible object storage with regions across several continents and free ingress. Confirm the regional endpoint in the Petabox console[32].

  • Endpoint format: s3.<region>.petabox.io (for example s3.us-east-1.petabox.io), or s3.petabox.io for US East.
  • Regions: Virginia, Frankfurt, Singapore, Bahrain, Sao Paulo.
  • Addressing: virtual-hosted.

Zata

Zata is an S3-compatible object storage gateway focused on South Asia. Its console shows the endpoint to use[33].

  • Endpoint format: idr01.zata.ai.
  • Regions: Indore, India (South Asia endpoint).
  • Addressing: virtual-hosted.

Filebase

Filebase is an S3-compatible gateway that stores objects on decentralized networks (IPFS and others) behind a familiar S3 API. Public-bucket reads should use the virtual-hosted URL. Filebase also appears on our decentralized storage page.

  • Endpoint format: s3.filebase.io.
  • Regions: single global endpoint; Filebase uses region auto for SigV4 signing.
  • Addressing: both path-style (https://s3.filebase.io/<bucket>/<key>) and virtual-hosted (https://<bucket>.s3.filebase.io/<key>) are supported[34].

Frequently asked questions

Which S3-compatible specialist has no egress fees? Several remove or limit separate egress charges, on different terms. Cloudflare R2, Wasabi, STRG, Synology C2, Impossible Cloud, and Telnyx advertise zero egress or no separate egress charge. Backblaze B2 includes free egress up to 3x average monthly stored data and MEGA S4 up to 5x, while Rabata Backup and Storadera use fair-use caps. Cloud Storage Ingress vs Egress Fees explains how the two kinds of transfer are billed, and Which S3-Compatible Storage Has No Egress Fees? compares the zero-egress providers.

Are these as reliable as AWS S3? S3 compatibility describes the API only. Durability and availability depend on each provider's own design, and many publish strong durability figures, so check the provider's SLA for your use case.

Can I migrate from AWS S3 to one of these specialists? Yes. They share the core S3 API, so you set AWS S3 as the source and the specialist's endpoint as the destination, and Blober copies the files across through your computer. Validate provider-specific behavior if you rely on advanced S3 features.

Which S3 providers are built into Blober? For this category, Wasabi, Backblaze B2, Cloudflare R2, Rabata, and STRG. Every other provider here connects through the generic S3-Compatible provider.