Blockcerts vs Credostar

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.

Credostar is a digital credentialing platform for organizations issuing certificates, badges and professional credentials. Users can design branded credentials in a visual editor or upload HTML/CSS templates, then issue them in bulk from CSV files, LMS connections or the API with automated email delivery. Credentials are cryptographically signed W3C Verifiable Credentials and have public verification pages. Standard credentials provide a limited download window without a QR code; Premium adds a QR code, unique ID, lifetime availability and public verification; Blockchain credentials anchor proof to a public chain. Credostar lists Google Drive, Razorpay, Zoho and LMS/CRM connectors, plus REST API, webhooks and CSV imports. Analytics track views, referral sources, shares and clicks. Exports are available in open formats, and enterprise plans can run a self-hosted verifier. A free plan includes 1,000 credits for one month; pay-as-you-go costs 500.00 INR once for at least 500 credits.