Product features
Proof people can trust — without asking them to sign up.
Seal any file, share one link, and let recipients confirm the file is unaltered in seconds. Start free. Add confidential delivery, invoicing, and teams when you’re ready.
We’re not DocuSign. Opcilo proves a file is unaltered and traceable to its issuer — it doesn’t collect wet or electronic signatures.
- SHA-256 sealed fingerprints
- AES-256 encryption at rest
- Workspace-isolated document storage
X7F-G2K-9PX
What you get
Sixteen shipped capabilities in four groups — trust, receive, workflows, and scale. Jump to any section or scroll the full story.
Trust and verification
Receive and manage
Business Inbox vs Recipient Wallet
Same platform — different jobs. Organizations manage work in the authenticated inbox; individuals keep seals they received on their device.
Who it’s for
Business Inbox
Organizations receiving and managing business documents
Recipient Wallet
Individuals keeping documents they received
Focus
Business Inbox
Work queues, tags, archive, and needs-action in your workspace
Recipient Wallet
Personal access and verification info for saved seals
Storage
Business Inbox
Your authenticated workspace / tenant in the Opcilo app
Recipient Wallet
On this device; optional sync when you create a free account — not a shared org inbox
| Capability | Business Inbox | Recipient Wallet |
|---|---|---|
| Who it’s for | Organizations receiving and managing business documents | Individuals keeping documents they received |
| Focus | Work queues, tags, archive, and needs-action in your workspace | Personal access and verification info for saved seals |
| Storage | Your authenticated workspace / tenant in the Opcilo app | On this device; optional sync when you create a free account — not a shared org inbox |
Business workflows
Business and developer scale
Send a signed contract without hoping email didn’t alter it.
Seal once
Upload a PDF, contract, drawing, or zip. Opcilo seals it with a cryptographic fingerprint and gives you a short code anyone can open. You stop chasing attachments — recipients get a Document integrity check, not a guarantee that every statement is true.
- Works with PDFs, Office, images, CAD, video, ZIP, and more
- Short code + URL ready for email, WhatsApp, or a portal
- Fingerprint stays tied to the exact bytes you uploaded
Contract_Q2.pdf
opcilo.com/verify/X7F-G2K-9PX
X7F-G2K-9PX
Sealed by: Acme Trading Co.
Sealed: 24 Jun 2026
Without Opcilo
Scattered attachments, “please resend,” and no way to prove the file is original.
With Opcilo
One verification link. Instant integrity check. No login required for the recipient.
A client opens your link on mobile and checks Document integrity before downloading.
Verify without an account
The verify page is the product for your recipient. Document integrity, issuer signals, and seal date appear without signup. Optional Issuer Verified shows only after business verification (Know Your Business, or KYB) — Identity Verified is not checked today.
- No recipient account or app install
- Document integrity status, issuer, and seal date
- Works anywhere a link opens — desktop or phone
Teams that need an audit trail of what they sealed and shared.
Verification records
ProOn Pro, see seal history and engagement signals such as sent, opened, and downloaded for documents you issued. This is a Verification Record for your workspace — we do not claim a public history of every anonymous verify visit.
- Seal history tied to your workspace
- Engagement trail on shares you control
- Pro capability — distinct from public verify
Verification records
Pro- • Sealed · X7F-G2K-9PX
- • opcilo.com/verify/X7F-G2K-9PX
- • Paid
Verified document
X7F-G2K-9PX
Acme Trading Co.
Vendors and partners who need a recognizable issuer signal.
Trust Badge & Issuer Verified
After business verification — Know Your Business (KYB) — your workspace can show Issuer Verified and a Trust Badge on public verify and your profile. Email-verified accounts are not Issuer Verified. Identity Verified on signers is not checked today.
- Issuer Verified after Know Your Business (KYB) — not inbox email alone
- Public profile and badge on verify pages
- Does not prove document contents are true
Ops and finance teams tired of attachments scattered across email.
Business Inbox
Business Inbox is where teams organize sealed shares, search and tag, archive, and act on needs-action items — distinct from a recipient’s device wallet. Storage lives in your workspace tenant, not on a personal phone tray.
- Workspace inbox at /app/inbox
- Search, tags, archive, and needs-action queues
- Not the same as Recipient Wallet on /wallet
Who it’s for
Business Inbox
Organizations receiving and managing business documents
Recipient Wallet
Individuals keeping documents they received
Focus
Business Inbox
Work queues, tags, archive, and needs-action in your workspace
Recipient Wallet
Personal access and verification info for saved seals
Storage
Business Inbox
Your authenticated workspace / tenant in the Opcilo app
Recipient Wallet
On this device; optional sync when you create a free account — not a shared org inbox
| Capability | Business Inbox | Recipient Wallet |
|---|---|---|
| Who it’s for | Organizations receiving and managing business documents | Individuals keeping documents they received |
| Focus | Work queues, tags, archive, and needs-action in your workspace | Personal access and verification info for saved seals |
| Storage | Your authenticated workspace / tenant in the Opcilo app | On this device; optional sync when you create a free account — not a shared org inbox |
- Lease_Addendum.pdf · Sealed
- Vendor_Pack · Bundle
- Invoice_Q1 · Awaiting review
Individuals who receive contracts, invoices, or packs and want quick re-verify.
Recipient Wallet
Recipient Wallet on opcilo.com/wallet stores documents you received locally on this device. Create a free account for optional sync across your devices — we do not promise org-wide cloud storage or a Business Inbox experience.
- Local-first storage on this device
- Optional sync when you create an account
- Distinct from authenticated Business Inbox
Who it’s for
Business Inbox
Organizations receiving and managing business documents
Recipient Wallet
Individuals keeping documents they received
Focus
Business Inbox
Work queues, tags, archive, and needs-action in your workspace
Recipient Wallet
Personal access and verification info for saved seals
Storage
Business Inbox
Your authenticated workspace / tenant in the Opcilo app
Recipient Wallet
On this device; optional sync when you create a free account — not a shared org inbox
| Capability | Business Inbox | Recipient Wallet |
|---|---|---|
| Who it’s for | Organizations receiving and managing business documents | Individuals keeping documents they received |
| Focus | Work queues, tags, archive, and needs-action in your workspace | Personal access and verification info for saved seals |
| Storage | Your authenticated workspace / tenant in the Opcilo app | On this device; optional sync when you create a free account — not a shared org inbox |
In-person handoffs, events, and teams that exchange documents often.
Opcilo ID for fast recipient capture
Every Opcilo user can share an Opcilo ID — a scan-friendly receive handle. Open the link or scan the code in the app to add that person as a document recipient quickly, without chasing emails or phone numbers first.
- QR / handle that opens a receive landing page
- Add the person as a recipient in the Opcilo app
- Available on Free, Pro, and Team — no recipient signup required to receive seals
Opcilo ID for fast recipient capture
- Selected · ready
- Channel · Email / SMS / WhatsApp
- Group · AP Contacts
REQ-K7M2
- 1. Create a checklist request
- 2. Share a secure link — no account required
- 3. Review each item — Verified or Rejected with a reason
- 4. Send response — recipients resubmit rejected items only
- 5. Final confirmation when required items are accepted
- Signed engagement letterVerified
Download form
- Bank statements (last 3 months)Needs resubmit
- ID / passport copyRejected
Download form
Tax season intakes, onboarding packs, and recurring client collections.
Request documents from clients
ProBuild a checklist, attach blank forms when needed, and share one secure link. Recipients upload without an account. You mark items Verified or Rejected, send a review response, they resubmit only rejected files, and you reach final confirmation — without equating request review with seal Document integrity.
- 1.Create a checklist request
- 2.Share a secure link — no account required
- 3.Review each item — Verified or Rejected with a reason
- 4.Send response — recipients resubmit rejected items only
- 5.Final confirmation when required items are accepted
Marking a checklist item Verified is requester review — not seal Document integrity and not person identity verification on the uploader.
- Checklist with optional blank forms per item
- Review, send response, and resubmit rejected items only
- Pro capability for accountants and client-facing teams
Freelancers and AP teams tired of “which PDF was final?”
Get paid on invoices people can verify
ProPro invoices support hierarchical lines, share-for-review, and structured client feedback (confirm, request changes, reject) before you Issue and seal. Amount due and Pay Now live on the same verification page with Document integrity — so clients can check which invoice was issued. Integrity evidence does not, by itself, end every commercial dispute.
- Share for review with confirm vs issue (seal when ready)
- Client comments notify you in-app — not lost in email
- Pay Now + Trust Badge after KYC on the verify page
Amount due
$2,480.00
Seal X7F-G2K-9PX · verified
X7F-G2K-9PX
Share Agreement · Jul 2026
Enter the one-time code
Optional security question before unlock
Without Opcilo
Sensitive contracts forwarded by accident. Attachments sitting in the wrong inbox for weeks.
With Opcilo
Only named recipients unlock the file — with a one-time code, and a security question when you need a second gate.
Share a private agreement that must not land in the wrong inbox.
Confidential delivery
ProMark a seal confidential and name who may open it. Recipients unlock with a one-time code sent to their email or phone — that confirms channel access, not person Identity Verified. Add a security question when you need an extra step before the file appears.
- One-time passcode to the recipient’s email or phone
- Optional security question for higher-stakes shares
- Content stays locked until the right person unlocks it
Monthly client packs or formal tender submissions.
One link, many documents
ProSeal Bundles group multiple documents under a single shareable URL. Recipients open one experience instead of juggling attachments. Built for Pro users who ship complete sets.
- One notification, one link for the whole set
- Each document stays individually sealed
- Ideal for tenders, handovers, and recurring packs
BND-K7M-2X4
- Technical_Proposal.pdf✓
- Financial_Bid.pdf✓
- Company_Registration.pdf✓
Notify on Email, SMS, and WhatsApp
- Selected · ready
- Channel · Email / SMS / WhatsApp
- Group · AP Contacts
MENA and global teams that cannot rely on email alone.
Notify on Email, SMS, and WhatsApp
Opcilo can notify recipients by Email, SMS, and WhatsApp when you share seals, send document requests, or need an unlock code. Telegram and additional channels are on the roadmap — labeled coming soon until they ship.
- Email, SMS, and WhatsApp as Opcilo notification channels
- Separate from pasting a verification link into WhatsApp yourself
- Telegram and more channels planned — coming soon
Firms that send the same sealed packs to the same people every month.
Recipient groups for repeat sharing
TeamTeam workspaces organize the address book into recipient groups — partners, AP contacts, or project stakeholders — so you stop retyping the same list. Pair groups with Email, SMS, or WhatsApp notifications when you send.
- Build named groups from saved recipients
- Reuse groups on seals, shares, and document requests
- Team capability built on the Pro address book
Recipient groups for repeat sharing
Team- Selected · ready
- Channel · Email / SMS / WhatsApp
- Group · AP Contacts
Bulk seal many documents at once
Team- Selected · ready
- Channel · Email / SMS / WhatsApp
- Group · AP Contacts
Month-end packets, onboarding dumps, and high-volume seal days.
Bulk seal many documents at once
TeamWhen volume spikes, Bulk Seal lets Team workspaces seal many documents in one action. Each file still gets its own fingerprint and verification code — this is not the same as a Seal Bundle (one shared link for a pack).
- Seal many selected documents in one workflow
- Each file keeps its own seal and verification code
- Team capability — distinct from Seal Bundles on Pro
A firm inviting partners to share monthly seal capacity.
Work as a team
TeamWhen solo Pro capacity isn’t enough, Team and Business workspaces pool monthly seals, invite members with Admin roles, and keep delivery consistent. Pro already includes an address book for saved recipients.
- Pooled monthly seals for the workspace
- Invite members and assign Admin roles
- Requires Team or Business — not included on Pro
Acme Workspace
Pooled seals this month
465 / 750 seals used
- AHA. HassanAdmin
- MKM. KhalilMember
- SNS. NasserMember
API & automation
POST /api/seals
GET /api/verify/{code}
// keys in app developer areaProduct teams wiring Opcilo into issuance or verification flows.
API & automation
Eligible workspaces can use API keys in the Opcilo app developer area for sealing and verification. A standalone public OpenAPI marketing site is not part of this release — explore in-app or contact us for access requirements and limits.
- Developer area inside the authenticated app
- Seal and verify endpoints for entitled plans
- No standalone public docs marketing page yet — start in-app
How trust is built
Security claims you can take literally
No vanity metrics. Opcilo seals documents with SHA-256 fingerprints, encrypts storage at rest with AES-256, and runs on Microsoft Azure.
- SHA-256 sealed fingerprints
- AES-256 encryption at rest
- Workspace-isolated document storage
Ready to send documents no one can question?
Start free with 5 seals per month. Seal your first document and share a verification link today.