S3 Viewer
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One viewer.
Every S3 workflow.

S3 Viewer is a developer-first dashboard for AWS S3, Cloudflare R2, MinIO, Backblaze B2, and Wasabi — built to replace the AWS console for the things you do every day. Pick the workflow that matches yours.

Multi-cloud

AWS S3, Cloudflare R2, MinIO, B2, and Wasabi — same sidebar, same search, cross-cloud copy when you need it.

Sharing without AWS

Email-invite clients and execs to a clean browser view of one bucket — revocable in one click, no IAM.

Team workspaces

Per-bucket roles, no per-person IAM, and one-click off-boarding without rotating any keys.

Better S3 browser

One-click rename, Tab-autocomplete bucket-wide search, and Cmd-K — focused on the daily browsing layer.

Cloudflare R2

Rename, search, multipart upload, and team sharing on top of Cloudflare R2's S3-compatible API.

Security

RSA-4096 encrypted credentials, zero object retention, MIT open source, fully self-hostable.

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S3 Viewer

A fast, open-source viewer for S3-compatible object storage. One interface for AWS S3, Cloudflare R2, MinIO, Backblaze B2, and any S3 API.

Built byMay IncMay Inc© 2026 S3 Viewer. Open source under MIT.

Use Cases

  • Multi-cloud
  • Sharing without AWS
  • Team workspaces
  • Better S3 browser
  • Cloudflare R2
  • Security & audit

How To

  • Rename an S3 file
  • Share an S3 file
  • Invite a teammate
  • View S3 + R2
  • Granular permissions
  • All guides

Company

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