Nepal's all-in-one digital signature platform.
Sign, seal and verify documents on any device — desktop, mobile or through your own systems. Built on the same EU DSS and ETSI standards used by Europe's national e-signing stacks, and made for recognition under the Electronic Transactions Act, 2063.
Every digital signature service, in one platform.
Whether you sign one document with a USB token or a million through an API, iSigner has a service for it.
Built for everyone who signs.
From a ministry approving budgets to a citizen signing a form at home — one platform, tailored to each.
Ministries & local bodies
Document approvals across eBPS, eDMS and e-services with full audit trails.
- Bulk & form signing
- USB token + server signing
- On-prem or managed hosting
Corporates & SMEs
Sign contracts, invoices and HR documents on web, desktop or mobile.
- Workflow & bulk signing
- Organisation e-Seals
- API & system integration
Banks & fintechs
High-assurance signing and timestamping for agreements, KYC and statements at scale.
- Cloud HSM key custody
- High-volume APIs
- Long-term archival (LTA)
Law & notarial
Tamper-evident signatures with verifiable timestamps and validation reports.
- Certificate-based signatures
- Validation reports
- Transparency-log evidence
Individuals
Sign government and business forms from your own phone or computer — no office visit.
- Mobile-ID & remote signing
- NFC national ID card
- Free public verification
Software teams
Add compliant signing to your product with a clean API and ready-made SDKs.
- 6 SDKs + JS widget
- OpenAPI 3.1 spec
- Sandbox & webhooks
One platform for every standard and channel.
iSigner next to a legacy desktop client, a commercial product, an open-source library, and Estonia's national stack — the benchmark for government e-signing.
| Capability | iSignerour platform | DSignerlegacy · Nepal | emSignereMudhra · commercial | endesiveopen-source library | DigiDocEstonia · national |
|---|---|---|---|---|---|
| Offering | Full platform: apps · server · mobile · APIs | Desktop client | Commercial platform | Developer library | National stack + clients |
| Platforms | Windows · macOS · Linux · Android · iOS | Windows | Web + Windows | Any (Python) | Windows · macOS · Linux · mobile |
| Signature standards | PAdES · XAdES · CAdES · ASiC-E · BDOC | PDF signing | PAdES / PDF + workflow | PAdES · CAdES · XAdES | ASiC-E · BDOC · XAdES |
| Long-term (LT / LTA) | ✓ B / T / LT / LTA | — | partial | limited | ✓ |
| Hardware token (PKCS#11) | ✓ 24 drivers | ✓ | ✓ | ✓ | ✓ ID-card |
| Cloud HSM / KMS | ✓ AWS · Azure · GCP | — | partial | — | national service |
| Mobile-ID / Smart-ID / remote | ✓ | — | partial | — | ✓ |
| Validation service | ✓ ETSI reports | — | partial | verify-only | ✓ |
| Bulk / high-volume signing | ✓ | limited | ✓ | DIY | — |
| APIs & SDKs | ✓ 6 SDKs + widget | — | limited | library only | libraries |
| Post-quantum ready | ✓ ML-DSA hybrid | — | — | — | — |
| Transparency log | ✓ | — | — | — | — |
| Deployment | Managed · self-host · on-prem | Proprietary, licensed | SaaS / on-prem | Open source (MIT) | Open source · national |
Comparison reflects publicly documented capabilities and typical deployments as of 2026. Estonia's DigiDoc is the gold-standard national stack iSigner is engineered to match; endesive is an excellent open-source library — a building block rather than a turnkey platform; emSigner is a commercial product from eMudhra; DSigner is the legacy Windows client iSigner replaces. “Partial / limited” denotes capability that depends on edition, add-ons, or custom integration.
Secure by design — only the hash leaves your server.
iSigner uses a deferred-signing model: the document stays server-side and only its hash travels to the signer's token or phone.
Prepare
The server computes the document hash and builds the signature placeholder — the file is never uploaded to the signer's device.
Sign
The signer approves with a USB token, Mobile-ID or biometric. The private key stays on the device; only the signature returns.
Seal & verify
iSigner embeds the signature, adds a trusted timestamp and revocation data, logs it to a transparency log, and issues a QR to verify.
Add signing with a few API calls.
A clean REST API, an OpenAPI 3.1 spec, signed webhooks and official SDKs. Prepare a signature, sign with any device channel, then embed and verify.
Pick the way you want to deploy.
From public-service use to fully self-hosted enterprise. Verifying a signed document is always free.
Government
- eBPS / eDMS integration
- USB token & server signing
- Bulk & form signing
- Validation & verify portal
- Managed or on-prem
Business
- Web, desktop & mobile signing
- Organisation e-Seals
- API access & webhooks
- Remote & Mobile-ID
- Audit logs & reports
Enterprise
- On-prem or private cloud
- Cloud HSM / KMS key custody
- High-volume bulk APIs
- Long-term archival (LTA)
- Priority support & SLA
Download iSigner
latestThe client app for signing with a USB token, or the server agent for your e-service backend.
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Ready to go paperless?
Tell us about your signing needs and we'll set up a tailored demo — government, enterprise or developer sandbox.