One storage bucket.
Unlimited team members.
Connect your own AWS S3, Cloudflare R2, or Google Cloud bucket. Invite your entire team without paying per-seat storage fees. Every transfer is encrypted on-device and logged for your admin.
Monitor team sharing.
Know where every file went.
Every internal and external transfer is logged with timestamps, recipient details, and download events. Need to pull back a document? Revoke the link with one click.

Recent Activity
Live SyncWhy pay per user for storage they rarely touch?
Traditional platforms like Google Workspace and Dropbox charge $15–$25 for every employee in your organization. Arcanum replaces per-seat pricing with a flat platform fee on your own bucket.
Per-seat license fees
Average annual cost for 20 seats on business cloud storage, even for employees who only open a file occasionally.
Shadow file sharing
When team members use personal emails or messaging apps to share files, IT admins have zero record of downloads or leaks.
Arcanum flat model
Add as many team members as you need. Everyone accesses the same storage bucket with full admin audit logging.
Up and running in 3 minutes.
No files to migrate. Keep your existing cloud accounts and start sharing immediately.
Connect your cloud bucket
Provide your S3, Cloudflare R2, or Google Cloud credentials. Arcanum connects using client-side encryption keys.
Invite your teammates
Add your entire company without per-seat charges. Set permissions, user roles, and storage quotas.
Share and track transfers
Every transfer is logged. Add recipient watermarks to sensitive PDFs and revoke access anytime with one click.
Bring your own storage bucket.
Arcanum connects to any S3-compatible cloud provider. Your files stay in your own bucket under your credentials — we never markup storage or charge egress fees.

Cloudflare R2
S3-compatible object storage with zero egress bandwidth fees.
{
"Bucket": "my-company-storage",
"Endpoint": "https://<account_id>.r2.cloudflarestorage.com",
"AccessKeyId": "CLOUDFLARE_R2_KEY",
"SecretAccessKey": "••••••••••••••••••••"
}How Arcanum compares to traditional cloud storage.
Google Drive / Dropbox / Box
- ✕Requires a license for every employee in your organization ($15–$25/mo/user)
- ✕Vendor hosts and processes your unencrypted files on their servers
- ✕High migration overhead and locked-in proprietary workflows
- ✕No way to trace who leaked a downloaded document
- ✕Limited visibility beyond aggregate storage quota
Flat Platform on Your Cloud Bucket
- ✓One flat monthly fee covers unlimited team members
- ✓Files are encrypted on your device and stream directly into your bucket
- ✓Switch between AWS S3, Cloudflare R2, or MinIO anytime with zero lock-in
- ✓Forensic watermarking identifies the recipient if documents are leaked
- ✓Full admin audit trail of all shares, opens, and downloads
Encrypted on your device.
Keys never reach our servers.
Files are encrypted locally in your browser using AES-256-GCM. The decryption key is carried in the URL hash fragment (#key), which browsers never send over HTTP requests.
Client-side AES-256-GCM
Unencrypted files never touch the network. All encryption happens locally in the browser before bytes are sent.
URL fragment key delivery
Decryption keys live in the URL #fragment, making them invisible to servers, proxies, and intermediaries.
Forensic leak watermarking
Embed recipient email and timestamps into PDFs so any leaked screenshot or document is traceable.
Predictable flat pricing.
No per-seat storage markup.
Arcanum charges a flat fee for the platform. Connect your own storage bucket and invite your entire team without paying an extra $15–$25 for each user.
Instead of paying each month for unused storage quotas, you keep storage in your own cloud bucket and eliminate per-seat licensing.
Free
For individuals and small teams getting started.
- 1 connected storage bucket
- Up to 3 team members
- Client-side AES-256 encryption
- 7-day transfer activity log
- 5 GB file transfer limit
- Forensic watermarking
- One-click link revocation
- Custom domain
Pro
For boutique firms needing leak protection and audit logs.
- 3 connected storage buckets
- Up to 25 team members
- Unlimited file sizes
- 1-year audit log history
- Forensic recipient watermarking
- Remote link revocation
- Tamper-proof transfer receipts
- Custom domain
- SAML SSO
Team
Most PopularUnlimited team members. Replace all per-seat storage fees.
- Unlimited team members (no per-seat fees)
- Unlimited storage buckets
- Unlimited transfer bandwidth
- Permanent audit log retention
- Org admin console & user management
- Forensic watermarking & verification
- Custom company domain
- Priority support
Enterprise
For organizations with compliance, self-hosted, or SSO needs.
- Self-hosted MinIO or air-gapped deployment
- Customer-managed encryption keys (BYOK)
- SAML SSO & SCIM directory sync
- SIEM log streaming (Splunk, Datadog)
- Custom DPA and compliance documentation
- Dedicated account manager & 99.9% SLA
Stop paying per seat for cloud storage.
Connect your AWS S3, Cloudflare R2, or Google Cloud bucket. Add your team. Average setup takes under 3 minutes.
No credit card required · SOC 2 Ready · GDPR ready · Cancel anytime