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Voltn Share

Secure, traceable file sharing with no size limits

Voltn Share allows you to send and receive all your files, with no size or format limits, and complete traceability for every exchange. Developed by Voltn (formerly NetExplorer), the solution is 100% hosted in France and designed for businesses.

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Hosting in France or Luxembourg
SecNumCloud qualified infrastructure
HDS
ISO 27001
GDPR compliant
Trusted by
companies

We don't do everything. We do file sharing, 100%.

Portals
Customization
Restricted free version
Advertising
Non-EU servers
Protection
Sending
Receipt
Traceability

The hidden weakness of consumer transfer tools

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The 25 MB attachment limit

Scenario
The mail server blocks the file, so you compress it, split it into three separate emails, and clog up inboxes.
Result
Wasted time, multiplying versions, and no visibility into what was actually received.

Consumer tools, without governance

Scenario
Consumer tools are chosen for their simplicity, often via personal accounts that the company does not manage.
Result
Corporate files circulating without any framework—neither traceable, nor revocable, nor compliant with your requirements.

Sending without control

Scenario
Once the link is sent, the file is out of your control: no expiration, no download limits, and no proof of receipt.
Result
It is impossible to know who accessed what, let alone prove it in the event of a dispute or audit.

Controlled sharing: from sending to proof

Voltn Share manages every step of your file exchanges. Wherever your files are, whoever your recipient is.
1

Sending

2

Receiving

3

Portals

4

Access protection

5

Traceability

Sending

Send anything, to anyone, from one single place. Even files stored in your other clouds.
Send via encrypted link or secure email
No size or format limits
Share directly from SharePoint, Google Drive, Box, Dropbox, or your file server, without downloading anything
Verification screen before every send, so there's no risk of mistakes
Proof of sending generated as a PDF

Reception

Collect files from your contacts without requiring them to create an account. Every upload arrives clean and in the right place.
A single link is all your contacts need. You receive files that are already scanned and filed.
Automatic antivirus scanning for every file received
Receive complete folders, with no size limits
Automatic filing in the folder of your choice
Notification for every upload

Portals

A dedicated exchange space for every client, project, or business process. Branded to your look, under your control.
All files for a relationship centralized in a single space
Created by your users in seconds
Granular member permissions: view, upload, download
Customization with your logo and visuals
Interaction history and CSV export

Access protection

You decide who accesses each file, how, and for how long. Even after sending.
Password or SMS code protection
Automatic link expiration
Granular access control: read-only, download, or edit
Configurable single-download limit
Access can be revoked at any time

Traceability

Every link is unique and timestamped. You don't just assume the file arrived; you can prove it.
Notifications for every view or download
Unique, timestamped links
File watermarking: a unique identifier for every document (optional)
Enforceable proof for your audits and tenders

File sharing, enterprise-grade

WeTransfer
Smash
Why leave?
WeTransfer is fine for an occasional one-off transfer.
But your company files deserve better than a consumer-grade tool.
Public links can be forwarded to anyone.
No user management is possible.
No visibility for your IT department.
Comparison: Voltn vs. WeTransfer
Voltn benefits
The same ease of sending, but with everything others lack: protected access, full traceability, and personalized spaces.
Immediate adoption: as simple as a consumer-grade transfer service.
Native governance: accounts managed by your IT, with permissions and logs.
Controlled branding: portals customized to your brand.
Try for free
Why move away from it?
Smash was designed for one-off transfers, not for governing your professional exchanges.
Your files disappear automatically after a few days.
Limited visibility for IT regarding organization-wide transfers.
Your data may pass through servers outside of France, depending on the sender's proximity
Comparison: Voltn vs. Smash
Voltn benefits
Take back control of your external exchanges without touching your existing storage.
Zero migration: Voltn Share installs on top of your existing storage
Centralized control: permissions, expiration, and revocation managed by IT
Hosting in France or Luxembourg
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Connect Voltn to all your tools

Voltn builds its own connectors for Outlook, Teams, and Google Drive, and integrates with your IT system through APIs, Zapier, or your AI agents. Your teams can work with their files directly from the tools they use every day, without opening yet another tab.

View available connections

Voltn Share adapts to all your environments

Web application

Send and receive files from any browser, with no installation required.

Outlook Connector

Replace attachments with a secure link without leaving your email.

Teams Connector

Share files live during your conversations and meetings.

Google Connector

Send your files directly from your Google environment.

API

Integrate secure sharing into your business applications and IT systems.
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Employé traversant un open space en portant une haute pile de dossiers

A secure, certified cloud hosted in Europe

Voltn brings together the most rigorous industry certifications for uncompromising security in a trusted, sovereign cloud.

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100% sovereign hosting

Voltn manages its own servers, hosted in France and Luxembourg in Tier 3+ and Tier 4 compliant data centers. Your data never leaves European territory and remains outside the reach of the Cloud Act.

Advanced file protection

Every file is scanned and encrypted in real time. Integrated antivirus and ransomware detection protect your data at every step.

Certifications & compliance

Certification ISO 9001
Certification ISO 27001
Certification HDS, Hébergeur de Données de Santé
Label Numérique Responsable niveau 1
Conformité au règlement européen DORA
Conformité à la directive européenne NIS 2
Conformité au règlement européen eIDAS 2.0

The numbers don't lie

15+ years

of expertise

300,000

utilisateurs quotidiens

2,000

organizations

500M

files stored

Over 15 years perfecting one thing: files.
This is what makes us experts where others remain generic.

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96% of our clients recommend us

Thérèse Vally

Safety Adviser at Carbonne Conseil & Formation

“We are very happy with the Voltn solution. It lets us securely back up our data, our administrative documents, the safety adviser deliverables we produce for our clients and all of our training materials. Voltn is our internal communication network. It is an effective and secure collaboration tool.”

Arnaud Berthier

Chief Information Officer at Campus Academy

“Voltn delivered a high-quality deployment in record time — one built to last, bringing a new, high-quality French service to our students. And the solution remains compatible with our existing IT environment.”

Frédéric Lamagdelaine

IT Project Manager at Samu Social de Paris

“With Voltn we share and collaborate easily, in a fully secure, HDS-compliant environment, adapting the access rights, confidentiality and audit trail requirements of each of our assignments to their specific needs.”

Use cases

Solutions for every sector

See our customer success stories

Choose your Voltn Share plan

Share Pro

€9.90
excl. tax /month /user
Starting from 3 users
Unlimited transfers
100 GB portals (sharing spaces)
Unlimited external users
Utilisateurs externes illimités, sans surcoût
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Trial

Share Enterprise

starting at €490
excl. tax /month
Starting at 100 users
Unlimited transfers
100 GB portals (sharing spaces)
Unlimited external users
Authentification SSO et annuaire LDAP / Active Directory
Chargé de clientèle dédié
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See all pricing

FAQ

How much does Voltn Share cost?

Voltn Share Pro is available for €9.90 excl. tax per user per month, starting from 3 users, and includes unlimited transfers and unlimited external users. For organizations with more than 100 users, the Share Enterprise plan starts at €490 excl. tax per month.

How does Voltn Share protect shared files?

Files are encrypted in transit and at rest, and hosted exclusively in France in Tier 3+ and Tier 4 compliant data centers. Each share can be protected by a password or SMS code, limited by time or to a single download, and revoked at any time. SecNumCloud qualification is currently in progress.

What is a secure file-sharing portal?

A portal is a dedicated space for exchanging information with a client, managing a project, or streamlining a business process. It centralizes all files related to a relationship, featuring granular access permissions for each member, full white-label customization, and a complete interaction history that can be exported to CSV.

Can we receive files from external correspondents?

Yes. Voltn Share allows you to create secure upload links: your contacts can upload their files without needing to create an account. Every upload is scanned by an antivirus and automatically filed in the folder of your choice.

What is the maximum file size with Voltn Share?

There are none. Voltn Share imposes no limits on size or format: videos, blueprints, mockups, data exports, or entire folders can be sent via a simple, secure link, with no compression.

Is Voltn Share an alternative to WeTransfer?

Yes. Voltn Share is a professional solution hosted in France and GDPR compliant. It provides features that consumer-grade tools lack: user management by your IT department, access protected by passwords or SMS codes, full download tracking, and customization to match your company's branding.

What is Voltn Share?

Voltn Share is a French secure file-sharing solution designed for businesses. It allows you to send and receive files of any size or format, with protected access and full traceability for every transfer, all within an environment certified to ISO 27001, ISO 9001, and HDS standards.

Libre à vous d'envoyer un télégramme
Vintage office chair with a pile of folders and a beige corded telephone, handset off the hook on red carpet.

Mais il faut avouer que partager de fichiers avec Voltn Share sur le cloud, c'est quand même plus simple.

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