Qualified eIDAS · Valid across the EU

Sign contracts in 30 seconds. Goodbye paper.

Your customer signs from their phone — no app, no signup. You receive the full legal evidence instantly. Biometric, OTP, digital certificate or qualified: all with eIDAS validity.

No credit card Qualified eIDAS No apps or downloads
4.2M
signatures/year
96%
first-attempt completion
<30s
average mobile signing time
Used by CaixaBank, Sant Pau, Garrigues and 500+ more

Trusted for digital signature

CaixaBank Banco Sabadell Hospital Sant Pau Garrigues
4.2M
Signatures processed per year
Banking, healthcare and legal sectors
<30s
Average signing time
From mobile, no downloads
eIDAS
Qualified · across the EU
Valid before notaries, judges and public authorities
How it works

From signed contract to filed record in 3 clicks

No paper, no email, no waiting.

1

Sign up free

Create your account in 30 seconds. Upload your first contract and set up the signers.

2

Send and sign

The signer receives a link and signs from their mobile in seconds. With biometric, OTP or certificate.

3

Archive and forget

Signed contract with complete legal evidence, filed automatically. Ready for any audit.

Create free account · 30 seconds

4 signature methods, all legal

Pick the right level for each situation. All fully legally valid in Spain and the EU.

Biometric signature

The customer signs with their finger on a tablet or phone, just like with a pen, but with encrypted graphometric evidence.

SMS OTP

Send a one-time code to the signer's mobile. Fast, simple and fully verified signing.

Digital certificate

Compatible with DNIe, FNMT and Cl@ve. Ideal for transactions with the public administration.

Legal validity across the EU

Advanced and qualified eIDAS signature. Valid before notaries, judges and official bodies across Europe.

Certified time-stamping

Precisely records when and from where the signature was made. Tamper-proof and verifiable at any time.

Full evidence in case of dispute

Each signature generates a PDF/A audit report with XAdES. Ready to present in any claim.

"From 2 weeks to 15 minutes to close a contract. And not a single dispute in 3 years."
JG
Javier García
Sales Director · Financial institution
Frequently asked questions

What we hear most often

What signature types does Dokuflex support?

Graphometric biometric, SMS OTP, digital certificate (DNIe, FNMT, Cl@ve) and qualified eIDAS signature with trust service providers. Each use case matched to the right legal level.

Is it legally valid in court?

Yes. It complies with eIDAS and Spanish legislation. Each signature generates a PDF/A audit report with XAdES, time-stamping and encrypted graphometric evidence.

Does the signer need to install anything?

No. They sign from any browser on mobile, tablet or PC. No app, no signup, no downloads. In under 30 seconds.

How much does it cost?

Start free, no credit card. Plans from EUR 0.50 per signature or flat rate by volume. Cancel anytime.

What if the signer doesn't know how to use it?

Dokuflex guides the signer step by step with instructions in their language. Average completion rate of 96% on the first attempt, even with non-digital users.

Sign your first contract today

Your first signed document in under 10 minutes. No credit card, no apps, no waiting.

✓ No credit card ✓ Qualified eIDAS ✓ English and Spanish support ✓ Data hosted in the EU