shareBySquare
Current license Free license. Gold and Platinum activate on this device; the annual layer can activate the same license on 3 devices.
Secure QR file sharing

Share files quickly and safely with a QR code

Upload File, choose clear access rules, and send one temporary QR download link. The recipient scans it and downloads the file safely without unnecessary risk.

A QR-based bridge between people, documents, devices, businesses and AI-agent workflows.

Upload file Set the rules Share the QR
Upload File Wireless transfer For AI agents → QR reader FAQ
Create secure sharing

Generate a protected QR link

Free: upload files up to 1 GB. Gold: upload files up to 3 GB and links up to 7 days. Platinum: upload files or folder ZIP archives up to 10 GB with cloud retention while the subscription is active.

Upload File

Transfer protection Temporary transfer with access rules, current limits and deletion settings.
Access rules active Temporary access Deletion rules Security model
Checking temporary storage... Temporary storage follows current server limits.
Free: upload files up to 1 GB. Gold: upload files up to 3 GB and links up to 7 days. Platinum: upload files or folder ZIP archives up to 10 GB with cloud retention while the subscription is active. Platinum can send a whole folder as a ZIP archive.
Content encryption
Waiting for file selection.
0%
AES-256-GCM Access rules active Temporary access
How it works

shareBySquare in three steps

Upload file

Choose any document, photo, archive, or media file from your device.

Set the rules

Limit downloads, add a password, and choose how long the link stays active.

Share the QR

Send the QR code or link. The receiver scans it and downloads the file.

Document handoff

For AI agents and document handoff

Use shareBySquare not only for quick QR file sharing, but also as a simple handoff point between physical documents, digital files and future AI-agent workflows.

Physical document to digital workflow

Place a QR code on contracts, invoices or service reports to connect paper context with temporary digital access.

Human to agent handoff

Give a person, business workflow or browser agent a bounded QR handoff instead of a permanent public link.

Agent-readable direction

The current product handles QR handoff today; structured agent-readable manifests remain a future direction.

For AI agents →
Security and rules

Clear protection, deletion and limits

Protected links

Temporary tokens, optional password, expiry and download limits keep every share bounded.

Deletion

Files can be deleted manually, after the first successful download, or when the selected validity expires.

Plan limits

Free: upload files up to 1 GB. Gold: upload files up to 3 GB and links up to 7 days. Platinum: upload files or folder ZIP archives up to 10 GB with cloud retention while the subscription is active.

Complaints and reports

Prohibited content, complaints and abuse reports are handled through the legal rules and contact channels.