The only free production ready esign api with no document limits.
Stop paying the DocuSign tax. Deploy DocuSeal in 3 minutes to get a professional, white-labeled e-signature API that scales without bill shock.
Why developers switch to self-hosted DocuSeal
A side-by-side look at the cost of scaling your e-signature workflow with our free production ready esign api alternative.
Pricing based on standard DocuSign and Dropbox Sign developer tiers as of 2024.
Why 'Free' eSign APIs are usually traps
Most e-signature providers offer a free tier. It looks good on paper: 3 documents a month or a sandbox environment for testing.
But the moment you move to production, the costs explode. You aren't just paying for the software: you are paying a tax on every signature your customers provide. If your app grows from 10 to 1,000 documents, your bill jumps from $15 to $500 overnight.
Enter DocuSeal: The Open Source Alternative
DocuSeal provides a full REST API, PDF form builder, and mobile-ready signing UI as an open-source package. Because you own the instance on Opsily, you don't pay per document. Whether you send 10 or 10,000 envelopes, your server cost stays exactly the same.
- No Sandbox Restrictions: Test and go live on the same infrastructure.
- True API First: Automate document generation and signing flows via SDKs for Ruby, Python, Node, and Go.
- Database Control: Your documents stay in your database, not on a third-party server.
A free production ready esign api with elite hosting
We handle the server so you can focus on the documents.
Email Deliverability Included
Setting up SMTP for signature requests is a pain. Opsily managed instances come with pre-configured mail settings to ensure your envelopes actually reach the inbox.
Data Residency in Germany
Keep your legal documents compliant. Every Opsily server is located in Frankfurt, ensuring 100% GDPR compliance without complex Data Processing Agreements.
Automatic Backups
Never lose a signed contract. We take daily, encrypted snapshots of your entire DocuSeal environment, including the database and the PDF storage.
Built for teams who need reliability
Go live in minutes
Select DocuSeal
Choose DocuSeal from our app catalog and select your server size.
Automated Deploy
Our system provisions your microVM, configures SSL, and installs the API.
Point Your SDK
Grab your API key from the DocuSeal dashboard and start signing in production.
Common Questions
Yes. The open-source version of DocuSeal includes the full REST API. When you host it on Opsily, you are using the true production engine. Unlike SaaS companies that restrict API access to their $50/mo+ tiers, we give you full access from Day 1 on any paid server plan.
Ready to launch your own eSign API?
Start with a 7-day free trial on our Starter plan. No credit card required.