Firma.dev vs DocuSeal: Which Pricing Model Fits Your Workflow?
One charges per envelope. One charges per month. See exactly what you'll pay at 100, 500, and 1,000 documents per month, and why the math changes everything.
Firma.dev vs DocuSeal: Feature & Price Comparison
What you get at the entry level and how costs scale with volume.
Pricing and features as of May 2026. Firma.dev: €0.029 approx $0.03 USD. DocuSeal with Opsily managed hosting.
cheaper at 100 documents per month
Firma.dev costs $2.90 vs DocuSeal's $40. But at 2,000+ documents, the subscription breaks even and DocuSeal's API becomes cost-competitive.
See the full cost breakdownWhen You Choose Firma.dev
Firma.dev is pure pay-as-you-go. No monthly bill, no setup fee, no seats. You pay €0.029 (about $0.03) per completed document.
This works best if you:
- Embed signing into a SaaS product (unpredictable monthly volumes)
- Handle under 500 documents per month
- Want zero upfront cost and no vendor overhead
- Build for multiple customer workspaces (no extra cost per workspace)
At scale: 10,000 documents a month costs you $300 (flat). No surprise bills.
When You Choose DocuSeal
DocuSeal on Opsily's managed hosting starts at $20/month, then adds $0.20 per completed document.
This works best if you:
- Need a pre-built dashboard your team uses daily
- Send 2,000+ documents per month (breakeven point)
- Want German data center options for strict EU compliance
- Prefer managed infrastructure (Opsily handles updates, backups, security)
- Require AI field detection ($100/month add-on)
At scale: 10,000 documents a month costs you $2,020 ($20 base + $2,000 in processing).
The Real Difference
Firma.dev assumes you're building a workflow into your product. DocuSeal assumes you're running a workflow for your customers or team. The pricing models reflect this: one says "pay only for what your users send," the other says "pay to keep the service running plus what you process."
Neither is cheaper universally. It depends on your volume and whether you need the dashboard.
Why Host DocuSeal With Opsily?
If you choose DocuSeal, managed hosting solves the operational headaches.
No DevOps overhead
DocuSeal is free to self-host, but you manage database, SSL, backups, scaling. Opsily handles it. You pay for DocuSeal's API + a fixed hosting fee. That's it.
EU data centers (GDPR built-in)
German data residency out of the box. No compliance questionnaires, no data processing agreements to negotiate. Your documents never leave the EU.
One invoice, predictable costs
No surprise overages. You know your base cost upfront. DocuSeal's per-document fees are stable and transparent. Scale without fear.
Built for teams who need reliability
Getting Started With DocuSeal on Opsily
From decision to first signed document in three steps.
Choose Your App
Select an app to get started.
Pick your plan
Start with free (10 docs/month) or go straight to Pro ($20/month). No credit card for free tier.
Build or integrate
Use DocuSeal's dashboard to send documents, or call the REST API to embed signing into your app.
Scale without limits
As volume grows, costs scale predictably. Your data stays in the EU. Infrastructure scales automatically.
Pricing & Setup Questions
Everything you need to know about costs, migration, and compliance.
Around 2,000 documents per month. Below that, Firma.dev's pay-per-envelope model ($0.03/doc) beats DocuSeal's $20 base + $0.20 processing. At 2,000 docs, both cost roughly $420. Above that, DocuSeal stays competitive because the $20 base gets amortized. For 10,000 docs/month, Firma.dev costs $300; DocuSeal costs $2,020. Choose Firma.dev for low volume, DocuSeal for high-volume with a dashboard.
Stop Overpaying for E-Signature APIs
Firma.dev is cheap for low volume. DocuSeal is cheaper at scale. Neither locks you in. See which fits your numbers.