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XcellVault|Secure File Transfer & Storage

Send, store and share files that only the right people can open.

XcellVault encrypts every file and secret on your device before it leaves. We store only ciphertext, in our Tier IV data centre in Mumbai, and we never hold your keys. Links expire, count downloads and ask for a password. Every action is logged.

  • Client-side AES-256 encryption
  • Zero-knowledge: we can't read files
  • Expiring, password-protected links
  • Password and secrets vault
  • Audit trail for every action
  • Data stays in Mumbai, India
✦Ask AI about XcellVaultChatGPTClaudePerplexityGoogle AICopilot
Key created on deviceAES-256 · never uploaded
01/05 Encrypted on your device E2EE
Illustrative
AES-256 on the device Mumbai Tier IV data centre DPDP Act ready controls ISO 27001 hosting 24×7 NOC & SOC From ₹199* a month
How zero-knowledge works

We store your files. We can't open them.

Encryption happens in your browser or app, with a key made on your device. What reaches our servers is ciphertext. Only people you share with get a way to decrypt it.

1 · Key on your device

A random AES-256 key is created for each file. It is wrapped with your own key, which never leaves the device in readable form.

2 · Encrypt, then upload

The file is encrypted and split into chunks before upload. File names and folder names are encrypted too.

3 · Ciphertext in Mumbai

Encrypted chunks are stored in XcellHost's Tier IV data centre in Mumbai, also encrypted at rest and over TLS in transit.

4 · Decrypt at the recipient

The recipient's browser fetches the chunks and decrypts them locally, after any password or verification you set.

What XcellHost can see

  • Account e-mail, plan and billing details
  • Encrypted chunk sizes and total storage used
  • Timestamps and IP addresses in the audit trail
  • That a link exists, its expiry and download count

What XcellHost cannot see

  • File contents, file names and folder names
  • Your passwords, API keys and vault notes
  • The text of your secure messages
  • Your encryption keys or recovery phrase

The trade-off, stated plainly

Because we never hold your keys, we cannot recover files if every admin loses their key and recovery phrase. Business plans add admin-held recovery keys so the company, not XcellHost, can restore access when someone leaves.

Chunk distribution across several storage zones is available on request*.

Six modules, one account

Transfer, store, share and talk. All encrypted the same way.

Every module uses the same client-side encryption and the same admin console, so one policy covers files, secrets and messages.

Send large files without an account on the other side

Drop files, add recipients or copy a link. The recipient opens it in any modern browser. You choose how long the link lives, how many downloads it allows, and whether it needs a password or a one-time code sent to their e-mail.

  • Large-file transfers, resumable if the connection drops (limits per plan*)
  • Expiry from 1 hour to 90 days*
  • Download limits, from one download upward
  • Recipient verification by e-mail code
Transfer · tender-drawings.zip2.4 GB 612 encrypted chunks7 days Link expiry3 Downloads allowedCode Sent to recipient's e-mailSample transfer

An encrypted drive for files you keep

Folders, versions and search, with every file encrypted before upload. Work from the browser, or use desktop and mobile apps where available*. Storage grows in 1 TB blocks.

  • Folders with encrypted names and version history
  • Restore deleted files within the retention window*
  • Search runs on your device, over decrypted names
  • Extra storage at ₹1,999 per TB a month
Drive · Legalv14 MSA-final.docxShared 2 partners · view onlyEncrypted Name and contents1.8 TB of 3 TB usedSample drive

Collect files from clients, encrypted on their side

Send a request link. Clients upload KYC papers, reports or drawings without creating an account. Their browser encrypts the files with your public key, so only your team can open them.

  • Upload-only links with a deadline
  • Optional e-mail verification of the sender
  • Limits on file types and total size
  • Alert to the owner on each upload
Request · FY26 audit documentsDue 30 Nov 20269 of 12 Clients uploadedPDF, XLSX Allowed typesVerified Sender e-mail checkedSample request

A vault for passwords, keys and the things in sticky notes

Store logins, API keys, licence keys, Wi-Fi passwords and secure notes. Share an item with a person or a group, change their access, or revoke it in one click. A generator creates strong passwords; a browser extension fills them in where supported*.

  • Logins, API keys, notes and card details
  • Shared folders by team with view or edit rights
  • Password generator and strength check
  • Instant revoke when someone leaves
Vault · FinanceLogin Bank corporate portalAPI key Payment gateway · liveShared GST portal · 3 peopleRevoked Ex-employee accessSample vault

Messages that stay between sender and reader

Send a secure note or a file thread to a colleague or a client. Messages use the same end-to-end encryption, can expire after reading, and stay out of ordinary inboxes. For encrypted e-mail inside Outlook or Gmail, pair XcellVault with our e-mail encryption service.

  • Encrypted one-to-one and group threads
  • Burn-after-reading notes
  • Outlook add-in on request*
  • Mail encryption: Email Encryption →
Thread · Board pack Q34 Participants1 file board-pack-q3.pdfRead by all, expires in 24 hE2EE Not in any inboxSample thread

Workspaces for teams, with admin control

Create a workspace per department, client or project. Admins add people, set roles, enforce sharing rules and see usage. Recovery keys held by your own admins mean files survive staff changes.

  • Roles: Owner, Admin, Editor, Viewer
  • Org-wide rules: maximum expiry, forced passwords
  • SSO with Microsoft Entra ID on request*
  • Usage and storage reports
Workspace · ProjectsOwner IT headAdmin 2 project leadsEditor 18 engineersRule No link longer than 14 daysSample workspace
Sharing controls & audit trail

Decide how a file can be opened. Then prove what happened.

These controls are set per link, or enforced for everyone from the admin console.

Link expiry

Links stop working at a date and time you set. Admins can cap the maximum.

Download limits

Allow one download or ten. The link closes when the count is reached.

Password links

The password is part of the decryption, not just a gate. Send it on a different channel.

Recipient check

A one-time code goes to the recipient's e-mail before the file opens.

Revoke any time

Kill a link after sending. Files already downloaded stay with the recipient, so set limits early.

View-only previews

Let people read a document in the browser without a download button*.

Audit trail

Logins, uploads, shares, downloads, deletions and setting changes, with time and IP.

Export & SIEM

CSV export of the trail; syslog feed to your SIEM on request*.

Audit trail · sampleTimes in IST
10:02:14Upload

tender-drawings.zip · 2.4 GB · by a.shah

103.21.x.x
10:03:40Share

Link created · 7 days · 3 downloads · password

103.21.x.x
11:18:05Download

1 of 3 · recipient verified by e-mail code

49.36.x.x
11:20:51Blocked

Wrong password, 3 attempts · link paused

185.220.x.x
11:25:09Admin

Link revoked by owner

103.21.x.x
Client-side encryption demo · runs in your browser

See what our servers would receive. Nothing leaves this page.

Type a short message and a passphrase. Your browser's Web Crypto API derives a key with PBKDF2 and encrypts with AES-256-GCM. This page makes no network request with your text.

Each click uses a fresh random salt and IV, so the same text never gives the same ciphertext twice.

Ciphertext · what the server stores0 bytes sent
Press Encrypt.
AlgorithmAES-256-GCM
Key derivationPBKDF2 · SHA-256 · 250k
Salt (16 B)—
IV (12 B)—
Size—
Time—
Decrypted text will appear here.

Demo only. XcellVault apps use random per-file keys wrapped by your account key, not a typed passphrase. Copy the ciphertext anywhere; without the passphrase it is unreadable.

Transfer-time estimator

How long will this file take? And which plan carries it?

Size divided by your real upload speed, with an allowance for encryption and network overhead. Change the inputs; the result updates as you go.

Encryption overhead is under 0.1% of size; the bigger factor is your line. Efficiency covers Wi-Fi, TCP and shared office bandwidth.

Estimated upload time
0 min
at 80 Mbps effective
Illustrative. Per-transfer limits per plan are placeholders* to confirm with XcellHost. E-mail limit assumes a typical 25 MB attachment cap.
Two-minute check

How secure is your file sharing today?

Eight questions about how your team shares files now. You get a score and the three fixes that matter most for you.

Your score
0
Answer the questions Pick one answer per question. Unanswered questions count as unknown.
    Compared with what most teams use

    Attachments, consumer links or XcellVault. Where the risk sits.

    A qualitative comparison of common defaults. Business editions of popular cloud drives add some controls; we cover those on the Zoho WorkDrive and Purview DLP pages.

    What mattersE-mail attachmentConsumer cloud linkXcellVault
    Where it is encryptedIn transit only, then readable in each mailboxOn the provider's servers, with provider-held keysOn your device, before upload
    Who can read it on the serverEvery mail server that stores a copyThe provider, if compelled or breachedNo one without your key
    Stops working after a dateNever; copies live foreverSometimes, often a paid featureAlways, with an admin cap
    Limits downloadsNoRarelyYes, per link
    Revoke after sendingNot possibleDelete or unshare the linkOne click, logged
    Proof of who opened itNoneBasic view counts on some tiersFull trail with time and IP
    Large filesAbout 20–25 MB per messageLarge, with personal storage capsLarge transfers per plan*
    Data locationWherever each mail server isProvider's choice of regionMumbai, India
    Company controlLeaves with the sender's mailboxTied to a personal accountOwned by your workspace
    Compliance & data residency

    Built for Indian rules. Ready for overseas ones.

    Encryption and logs do not make you compliant on their own, but they cover the safeguards regulators ask about first.

    India

    DPDP Act, 2023 & Rules, 2025

    The Act asks data fiduciaries to take reasonable security safeguards, including encryption, access control and logs, to prevent personal data breaches. XcellVault gives you all three for shared files, plus an audit trail to support breach investigation and reporting.

    DPDP Compliance Platform →
    EU

    GDPR

    Article 32 names encryption as an appropriate security measure. For EU clients or staff data, client-side encryption limits what a processor, including us, can access. A data processing agreement is available on request*.

    Hosting

    ISO 27001 operations

    XcellVault runs on infrastructure operated by XcellHost under our ISO 27001, 27017, 27018 and 20000-1 certifications and SOC 2 Type I and II reports, monitored by our 24×7 NOC and SOC.

    Residency

    Data stays in India

    Encrypted files, vault items and logs are stored in XcellHost's Tier IV data centre in Mumbai. XcellHost is MeitY empanelled. A second Indian site for replicas is available on request*.

    Microsoft Entra ID SSO* Active Directory / LDAP sync* Outlook add-in* SIEM via syslog* REST API & SDK* Desktop & mobile apps* S3-compatible storage back end Any modern browser

    * Integrations and apps marked with an asterisk are available on request and confirmed during scoping.

    Plans · INR · excl. 18% GST

    Pick by people and file size. Same encryption on every plan.

    Every plan includes client-side encryption, expiring links, the vault and India hosting. Higher plans add teams, admin control and bigger transfers.

    Personal
    ₹199*/ month
    Indicative — confirm with XcellHost
    • 1 user
    • 200 GB encrypted storage*
    • Up to 5 GB per transfer*
    • Expiry, password and download limits
    • Personal vault
    Pro
    ₹299*/ user / month
    Indicative — confirm with XcellHost
    • 2 to 25 users*
    • 500 GB per user, pooled*
    • Up to 50 GB per transfer*
    • File requests from clients
    • Secure messages
    For companies
    Business
    ₹499/ user / month
    XcellDrive per-user rate, CA Cloud page · excl. 18% GST
    • 1 TB per user, pooled*
    • Up to 250 GB per transfer*
    • Workspaces, roles, team vault
    • Audit trail export, org-wide rules
    • Admin recovery keys
    Enterprise
    On quote
    Price on quote
    • Dedicated tenant in Mumbai*
    • 1 TB+ transfers*
    • SSO, AD sync, SIEM feed*
    • Named account manager
    • Custom DPA and SLA*
    Add-onPriceBasis
    Extra encrypted storage₹1,999per TB / month · India storage rate from our Cloud Object Storage page
    Onboarding & sharing-policy setup₹14,999*one-time · workspaces, roles, link rules, recovery keys
    SSO with Microsoft Entra ID₹19,999*one-time · SAML set-up, group mapping, pilot users
    Training session₹9,999*per session · admins or end users, online
    SIEM feed, Outlook add-in, AD syncOn quote*confirmed during scoping

    * Indicative — confirm with XcellHost. Storage allowances, transfer limits and prices marked * are placeholders. Business uses the ₹499 per-user rate listed for XcellDrive on our CA Cloud page; storage add-on uses the ₹1,999 per TB rate on our Cloud Object Storage page. All prices excl. 18% GST.

    Configure

    Build your XcellVault plan. See the bill in rupees.

    Pick a plan, the number of users and any extras. Enterprise is quoted separately and not added here.

    Business: 1 TB per user pooled*, so 25 users get 25 TB before any extra storage.

    Your estimate · Business, 25 users
    ₹0
    first month incl. 18% GST
    Business ₹499 per user from the XcellDrive listing on our CA Cloud page; storage ₹1,999 per TB from our Cloud Object Storage page. Items marked * are indicative — confirm with XcellHost. All prices excl. 18% GST.
    Where teams use it

    Files that should never sit in an inbox.

    Common starting points for Indian companies. Most begin with one team and one painful file flow.

    Legal & CA firms

    Collect client KYC and financials through request links; send opinions and returns with expiry and a password.

    CA Cloud →

    Healthcare

    Share scans and reports with patients and referring doctors without e-mailing health data in the clear.

    Manufacturing & design

    Send multi-gigabyte drawings and CAD files to vendors, with download limits and a record of who opened them.

    BFSI & boards

    Board packs, audit files and investor documents, with view-only previews and expiry after the meeting.

    HR & payroll

    Salary files, offer letters and ID proofs, plus a shared vault for payroll and statutory portal logins.

    Media & agencies

    Rough cuts and campaign assets before release, shared with clients on links that expire.

    IT & DevOps

    API keys, certificates and server credentials in a team vault, revoked the day someone leaves.

    SECURITY & COMPLIANCE

    Controlled Sharing For Sensitive Files

    Combine the encryption and residency options described above with your team's access policies. Confirm the deployment, integration and retention requirements in your quotation.

    Encryption And Key Ownership

    Review client-side encryption and key recovery arrangements before moving sensitive files.

    Sharing Controls

    Set link expiry, passwords and download limits to suit each recipient and document.

    Audit And Access Reviews

    Use activity records and access reviews to manage sharing and remove access when people leave.

    WHY XCELLHOST

    Why Choose XcellHost For Secure File Transfer?

    India Hosting Options

    Discuss Mumbai hosting and the residency requirements for your organisation.

    Team-Sized Plans

    Compare personal, professional, business and enterprise requirements in one configurator.

    Clear INR Estimates

    See licence, storage and service estimates with applicable GST before requesting a quote.

    Policy Setup

    Add onboarding and sharing-policy setup to your rollout when needed.

    Identity Integration

    Scope Microsoft Entra ID SSO and other integrations with your existing environment.

    User Training

    Include training sessions to help your team adopt secure file-sharing habits.

    FAQ

    XcellVault, answered.

    Files, file names, vault items and messages are encrypted on your device before they are uploaded. XcellHost stores only the encrypted data and never receives the keys needed to decrypt it, so our staff cannot read your content.

    Content is encrypted with AES-256 in GCM mode using a random key per file. Those keys are wrapped by your account key. Data is also protected with TLS in transit and encrypted at rest on our storage. The demo on this page shows the same AES-GCM primitive running in your browser.

    No. Recipients open the link in a modern browser, which decrypts the file locally. You can require a password, a one-time code sent to their e-mail, or both.

    In XcellHost's Tier IV data centre in Mumbai, India. Encrypted files, vault items and audit logs stay in India. A replica at a second Indian site is available on request.

    Per-transfer limits depend on the plan: indicatively 5 GB on Personal, 50 GB on Pro, 250 GB on Business and 1 TB or more on Enterprise. These are placeholders to confirm with XcellHost. Uploads are chunked and resume if the connection drops.

    On Personal and Pro, the user's recovery phrase restores access; XcellHost cannot reset it for them. On Business and Enterprise, your own admins hold recovery keys and can restore access to company files. We never hold a key that can decrypt your data.

    It covers security safeguards the Act expects, such as encryption, access control and logging, for files you share and store. Consent, notices, retention and grievance handling are separate obligations; our DPDP Compliance Platform covers those.

    Single sign-on with Microsoft Entra ID, Active Directory sync, an Outlook add-in and a syslog feed to your SIEM are available on request. We confirm each one during scoping and quote set-up separately.

    Indicatively ₹199 a month for Personal and ₹299 per user a month for Pro. Business is ₹499 per user a month, the same rate we list for XcellDrive. Extra storage is ₹1,999 per TB a month. Enterprise is quoted. All prices exclude 18% GST.

    Our NOC and SOC run 24×7 from Mumbai. Call +91 22 6711 1555, WhatsApp +91 86570 32540 or e-mail [email protected]. Sales questions go to [email protected].