Vault important documents, verify authenticity instantly, and build permanent trust with secure digital proof.
Nanivolt gives individuals and organizations the tools to secure, verify and prove authenticity for every file.
Protect important files with encrypted digital vaults and permanent proof of ownership.
Instantly verify whether a document is authentic or has been altered. If tampering is detected, Nanivolt shows you exactly which words changed and on which page.
Maintain an immutable audit history for every protected document.
Share a unique verification link with anyone. Recipients can instantly confirm your file is authentic without an account.
AES-256-GCM encryption at rest for all document text. Server-side key management. SHA-256 fingerprinting. Built on encrypted cloud infrastructure.
When tampering is detected, Nanivolt's word-level diff engine highlights every changed word in red and green, identifies which page was modified, and shows the exact original vs modified text side by side.
Secure your files in just three simple steps.
Upload your important document into your secure Nanivolt Vault.
Nanivolt generates a unique digital fingerprint and securely stores the proof of authenticity.
Share or verify the document instantly using Nanivolt Verify.
From upload to verification, Nanivolt records every important step.
Your file is securely uploaded into Nanivolt.
A unique digital fingerprint is generated.
Your proof is permanently stored.
Anyone can verify authenticity instantly.
Monitor your vaults, verify documents, track activity and manage credits from one beautiful workspace.
✔ Contract.pdf Vaulted
✔ NDA Verified
✔ Certificate Protected
A straightforward look at what Nanivolt offers versus the alternatives.
| Feature | Nanivolt | Docusign | Adobe Sign | BlockCerts |
|---|---|---|---|---|
| Starting Price | $0 Free | $15/mo | $22.99/mo | $150+/mo |
| File Integrity (SHA-256) | ✅ | ❌ | ❌ | ✅ |
| Verify Without Account | ✅ | ❌ | ❌ | ❌ |
| Tamper Detection | ✅ | ⚠️ Signature only | ⚠️ Signature only | ✅ Hash only |
| Word-level Text Diff | ✅ | ❌ | ❌ | ❌ |
| Page-level Change Detection | ✅ | ❌ | ❌ | ❌ |
| Image Similarity (pHash) | ✅ | ❌ | ❌ | ❌ |
| Public Verification Link | ✅ | ✅ | ✅ | ❌ |
| Free Tier (not trial) | ✅ | ❌ | ❌ | ❌ |
| Premium Price | $21.99/mo | $65+/mo | $22.99/mo | $150+/mo |
Nanivolt is built for individuals, freelancers, and businesses that need reliable file integrity without enterprise pricing.
Start free and upgrade whenever your business grows.
Perfect for getting started with Nanivolt.
50 Vault Credits + 50 Verify Credits every month.
Built for teams, organisations and high-volume document workflows.
Get notified when Enterprise launches:
Seamlessly sync your entire Nanivolt vault across all your devices in real time.
Get notified when Cloud Sync launches:
Watch how easy it is to vault and verify a file — no editing, no tricks.
Two versions of the same file. Nanivolt instantly tells them apart.
Everything you need to know about Nanivolt.
Yes. Every account starts with our Freemium plan, including Vault and Verify credits.
Yes. Anyone can verify a document using its unique verification ID.
Yes. Extracted document text is encrypted at rest using AES-256-GCM — a military-grade symmetric encryption standard. Encryption happens server-side before anything is written to the database. Your document contents are never stored in plain text. SHA-256 fingerprints and verification are completely unaffected.
Nanivolt's text diff engine runs automatically. It compares the vaulted text against the uploaded file word by word, highlights every changed word in red and green, identifies which page was modified, and shows the exact original vs modified text side by side — for PDF, DOCX, and TXT files.
Yes. Enterprise customers can integrate directly through our APIs.
Join thousands of professionals protecting contracts, certificates, legal documents and digital assets.