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Collaborate in real time

Collaborate on your documents in real time, with full sovereignty

Every additional account with an American cloud giant means more data out of your control: that is often the hidden cost of simple co-editing on consumer-grade suites. Voltn (formerly NetExplorer) allows you to create, edit, and co-author documents with others in real time, on infrastructure hosted 100% in France.

"With Voltn, we share and collaborate simply in a completely secure environment, easily adapting permissions, confidentiality, and traceability for each of our missions."
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Frédéric Lamagdelaine
Project Manager, Sustainable IT Department - Samu Social de Paris
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Certification HDS, Hébergeur de Données de Santé
HDS certification
ISO 27001 & ISO 9001 certified
Conformité au RGPD
GDPR-native
100% French hosting

Real-time collaboration:what are we really talking about?

Collaborating in real time means allowing multiple people to create, edit, and enhance the same document simultaneously, without duplicating files or losing versions.
Unlike sending attachments or sharing a standalone link, a collaborative suite keeps a complete record of every contribution and centralizes everything in one single space.

What this means in practice:
Edit and co-edit a document with others, simultaneously
Comment, annotate, and suggest changes without overwriting others' work
Maintain a version history and revert to previous versions at any time
Assign differentiated rights based on individuals or teams
Receive a notification for every important update
Keep a record of every action in an event log

What Voltn offers your teams

Seamless co-editing
History and versioning
Differentiated team permissions
Data sovereignty
Full traceability
Multiple team members can edit the same Word, Excel, or PowerPoint document simultaneously, without creating duplicate files or losing track of changes.
Example
A marketing team finalizes a sales proposal together via video call, without ever exchanging a single attachment.
Every change is recorded. You can revert to a previous version with a single click, without worrying about human error.
Example
A project manager restores the previous day's version of a specification document after an accidental change.
Seven permission levels allow you to configure who can read, edit, or manage access on a folder-by-folder basis.
Example
A legal department opens a read-only folder for sales teams, while restricting edit access to its own legal staff.
Your documents are hosted in France on sovereign infrastructure, beyond the reach of extraterritorial laws.
Example
A local authority centralizes its internal deliberations and reports without them ever passing through a foreign cloud.
Every edit, comment, or approval is recorded in an exportable event log.
Example
A quality department can prove, with a complete history, that a protocol was reviewed and approved by the right people before distribution.
Man in office holding a large stack of file folders, hiding part of his face behind them.

A secure, certified cloud, hosted in France

Voltn holds the most demanding certifications on the market for uncompromising security in a trusted, sovereign cloud.

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100% sovereign hosting

Voltn manages its own servers, hosted in France in Tier 3+ and Tier 4 compliant data centers. Your data never leaves French 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

Even more use cases

Every team has its own way of using company files: centralizing, co-editing, transmitting, or proving compliance. Voltn meets each of these needs in a single, secure environment hosted in Europe.
1

Share files

Send your documents securely, both internally and externally, with full traceability for every exchange.
Discover the Sharing use case
2

Store your documents

Centralize all your files in a single, structured, and protected space, accessible at any time.
Discover the Storage use case
3

Compliance requirements

Meet the regulatory requirements of your industry with sovereign hosting and recognized certifications.
Discover the Compliance use case
Discover all our use cases
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Situations where Voltn makes the difference

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Collaborative writing across departments

Scenario
Reports, tenders, or presentations need to be co-authored by multiple teams, sometimes across different locations, without wasting time merging versions.
Benefit
A single document, edited simultaneously by all contributors, with a complete history of every contribution.

Remote work and multi-site teams

Scenario
Collaborators spread across multiple offices or working remotely need to access the same files at the same time, without relying on foreign cloud services.
Benefit
A single workspace, accessible from anywhere, hosted in France and available even with offline synchronization.

Document approval before distribution

Scenario
Sensitive documents (contracts, protocols, reports) must be reviewed and approved by multiple people before being distributed, whether internally or externally.
Benefit
An integrated approval workflow with full traceability for every review and sign-off.

Integrated eIDAS signature

Scenario
Documents co-authored and approved by multiple collaborators need to be signed, either internally or by an external party, without switching to email or a third-party platform.
Benefit
eIDAS-compliant electronic signature, integrated directly into the Voltn workspace: documents are signed exactly where they were co-edited and approved, with no break in the workflow.

FAQ

Can I recover a previous version of a document after making changes?

Yes. Every document keeps a version history. You can view, compare, and restore a previous version at any time.

Is there a French alternative to the major American collaborative suites?

Yes. Voltn offers a complete collaborative suite (editing, co-editing, approval, sharing) hosted exclusively in France, GDPR compliant, and ISO 27001 certified.

How do you manage access rights across multiple teams?

Voltn offers seven independent permission levels, adjustable by folder, team, or user, with a full access audit trail.

Do our data remain in France during the collaboration?

Yes. All documents and their versions remain hosted in France on infrastructure operated by Voltn, beyond the reach of the Cloud Act.

What happens if two people edit the same document at the same time?

Everyone's changes appear in real time without overwriting anyone else's work. A version history allows you to revert to previous versions if needed.

Can you really co-edit a Word or Excel document in real time with Voltn?

Yes. Multiple users can create, edit, and co-author Word, Excel, or PowerPoint files simultaneously, directly from your Voltn workspace.

You could keep all your documents on a floppy disk.
Vintage office chair with a pile of folders and a beige corded telephone, handset off the hook on red carpet.

But let's be honest, our cloud-based file storage and sharing solution is just easier.

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