As a freelancer, your files are your proof. Certify your work with secure, timestamped ownership to build trust, avoid disputes, and protect your portfolio.
Timestamp your final delivery files to prove you sent them first. Ideal for client disputes, invoices, and contracts.
Designs, documents, code, and creative drafts — all protected with tamper-proof hashing and authorship records.
Download a certificate PDF or share a public link to show clients your certified files and build instant credibility.
Certifications are valid worldwide — perfect for remote freelancers working with international clients.
CertifyRights supports the most common file types used in freelance work:
Yes. Your certificate includes a cryptographic timestamp that shows exactly when you submitted your file — ideal for proof of delivery.
Designs, writing, source code, proposals, and more. If you can upload it, you can certify it.
Yes — our SHA256-based timestamps are accepted as digital evidence globally. You can include them in invoices or contracts.
Certify your designs, documents, or code before you send them. It's fast, secure, and free to start.
Certify My Freelance Files →