Blockcerts vs CertSeal
Blockcerts
blockcerts.orgCertSeal
certseal.comSide by side
| Figure | Blockcerts | CertSeal |
|---|---|---|
| Price from | Free | $32.50/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 8 |
| Spec score · Credentialing Software | 9.0 (#2) | 9.0 (#4) |
| Privacy | The FAQ says the blockchain stores a one-way hash of certificate data, from which the original data cannot feasibly be recovered. | CertSeal says it can sign a DPA covering GDPR, UK GDPR, and Singapore's PDPA. |
| Revocation | The standard supports issuer revocation, including Open Badges-style HTTP revocation lists and other schema-dependent methods. | Revocation and re-issuance are available for correcting or invalidating previously sent credentials. |
| Self-hosting | Developers can run the verifier locally and build the cert-issuer Docker image for experimentation or deployment. | On-premises deployment is listed only as a Custom-plan option. |
| Support | The public community forum is presented as a place to ask technical questions, discuss topics, and share news. | Support is offered by email Monday to Friday, 9:00–18:00 Singapore time, with a stated first-response target of one business day. |
| System requirements | The iOS wallet requires iOS 13 or later; Apple lists macOS 11 or later with an Apple M1 chip for Mac compatibility. | The free generator runs in a browser without installation and recommends a screen at least 900 pixels wide. |
| Verification | The universal verifier checks records independently and can be built into existing software systems. | Each credential receives a permanent verification URL and dynamic QR code that can be scanned from printed copies. |
| What it does | Blockcerts is an open standard and software ecosystem for creating, issuing, viewing, holding, sharing and verifying blockchain-based certificates and official records. | CertSeal is a web platform for designing, issuing, managing and verifying digital certificates, badges and credentials. |
Plans
CertSeal
- FreeFree
- Starter$39 a month
- Plus$99 a month
- Professional$199 a month
- Starter$390 a year
- Plus$990 a year
- Professional$1,990 a year
- CustomPriced on request
In their own words
Blockcerts
Blockcerts is an open standard and open-source ecosystem for creating, issuing, receiving, and checking blockchain-based credentials and official records. Its intended settings include civic records, education, professional licensing, and workforce development. Recipients can use the Blockcerts app to receive, import, keep, and share credentials; a private passphrase supports ownership and recovery. A universal verifier checks records independently and can be incorporated into other software. Developer resources include Python tools for creating and issuing credentials, a JavaScript verification library for Node.js or browsers, and a standalone web verifier. The issuer library supports Bitcoin and Ethereum, while the standard is designed to work across blockchains. Verification checks issuer signatures and certificate data, including expiry and revocation. Issued certificates cannot be edited, though an issuer can revoke an incorrect one or issue a replacement batch. Blockchain data is a one-way hash of certificate information. Blockcerts is free; Bitcoin batch issuance may incur a variable network transaction fee.
CertSeal
CertSeal helps teams design, issue, deliver, and verify digital certificates, badges, and other credentials through web, API, and self-hosted options. Its editor offers drag-and-drop design, branding, dynamic fields, and 200+ templates. Teams can issue personalized credentials in bulk from CSV or Google Sheets data, or through the API. Each credential receives a unique verification URL and dynamic QR code, and recipients can check it from a printed copy. Teams can revoke and re-issue credentials, with status updated on verification pages. Recipients can share credentials to LinkedIn, X, and Facebook or add them to LinkedIn’s Licenses and Certifications section. Listed integrations include Zoom, Zapier, and a REST API with signed webhooks; CertSeal says Zapier connects to 5,000+ apps. The free plan includes 100 certificates per year and one batch; unused quota does not roll over, and deleting recipients does not restore it. Paid plans start at $39 a month. CertSeal says data is encrypted in transit and at rest, and it can sign a DPA covering GDPR, UK GDPR, and Singapore’s PDPA.