# Blob0

A Mac S3 client that treats R2, S3, MinIO, B2, and OSS buckets like local folders, with a CLI and agent skill.

HTML: https://softbests.com/software/blob0
Markdown: https://softbests.com/software/blob0.md
Website: https://blob0.com/

- Category: [Developer utilities](https://softbests.com/category/developer-tools)
- Pricing: Freemium
- Platforms: macOS, CLI
- Underrated

## Best for

Developers and writers who move files between a Mac and S3-compatible storage without opening a web console.

## Why it deserves attention

Blob0 browses, uploads, downloads, renames, moves, previews, and shares objects across S3-compatible storage while keeping access keys in the macOS Keychain. It has presets for Cloudflare R2, Amazon S3, Backblaze B2, Wasabi, MinIO, Alibaba OSS, Tencent COS, and custom endpoints, generates presigned links, and can upload images pasted into Obsidian or Typora. A bundled CLI and official Agent Skill let Claude Code, Codex, or Cursor work with the same saved connections. The free plan includes every feature for one bucket with no account; a $16.90 one-time Personal licence adds unlimited connections across three devices, and team codes are $12.90 each. The trade-off is Mac-only and S3-only: it is a focused object-storage client, not a general FTP or cloud-drive mount.

## Can replace

- [Cyberduck](https://softbests.com/software/cyberduck)

## Related and alternatives

- [Transmit](https://softbests.com/software/transmit)
- [BucketMate](https://softbests.com/software/bucketmate)