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Legally sign documents online with yes®

You and your business partners can sign important contracts directly in sproof sign with an existing yes® identification.


yes® is an open banking ecosystem that was launched in Germany in 2019. yes® is a provider of certificates for electronic signatures. Within the yes® ecosystem, both advanced and qualified electronic signatures can be created in accordance with EU Regulation 910/2014 eIDAS.

Frequently asked questions

Are signatures created with yes legally valid?

How does the identification for a qualified signature work with yes

How to sign with yes in sproof sign?

Can signature recipients also choose other signature providers?

Use your existing qualified signature directly in sproof sign.

Digital Signature 2.0 - Qualified Signing without Borders throughout Europe

sproof has been working intensively on a newly developed interface for qualified signing throughout Europe over the past few weeks. Now the beta version has been officially transferred to the test phase with some important key accounts.
Why sproof sign?Highest security and compliance paired with an "all-in-one" functionality make sproof sign the top European alternative on the e-signature platform market. 100% developed and hosted in Europe.
sproof sign is the highest-rated provider in the e-signature category on the independent evaluation platform OMR Reviews for Q3 and Q4 2023, as well as Q1 2024.