OpenFaaS Pricing: How the Free Model Works
Everything that shapes what OpenFaaS actually costs: its Free model, billing factors, and cheaper alternatives in Serverless.
How much does OpenFaaS cost? This page explains the Free model used by OpenFaaS, what factors drive your final bill, and Serverless alternatives with different pricing models so you can compare before subscribing.
OpenFaaS is a serverless with a 4.2/5 user rating. Like most B2B tools, exact prices change with plans and time — that is why this article focuses on how the pricing model works rather than numbers that go stale.
How OpenFaaS Pricing Works
OpenFaaS uses a free model: the product can be used without a subscription fee. In practice, OpenFaaS bills based on the plan you choose, so your total cost scales with how the team uses it.
Is OpenFaaS Free?
Yes — OpenFaaS offers free usage, so you can try it without a credit card. Free plans typically limit users, storage volume, or advanced features.
- Always check the trial length and whether a credit card is required.
- Compare free-plan limits with your team's real needs.
- Visit OpenFaaS's official website for the latest price list.
Pricing Snapshot
OpenFaaS uses a free model: the product can be used without a subscription fee.
What Drives Your Final Cost
These four factors usually determine what you actually pay:
- Seat count: critical for per-user and tiered models.
- Usage volume: transactions, requests, or data processed.
- Billing cycle: annual is usually cheaper than monthly.
- Add-ons: extras like SSO, audit logs, or premium support.
OpenFaaS Alternatives with Different Pricing
If the Free model does not fit your business pattern, 8 same-category alternatives offer different models. Here is a quick comparison:
- Cloudflare Workers — Freemium, rating 4.6/5 (free plan available)
- Deno Deploy — Freemium, rating 4.5/5 (free plan available)
- Vercel Functions — Freemium, rating 4.5/5 (free plan available)
- AWS Lambda — Pay as you go, rating 4.4/5
- Firebase Functions — Pay as you go, rating 4.3/5
- Netlify Functions — Freemium, rating 4.3/5 (free plan available)
Tips for Choosing the Right Plan
Do these before you get your card out:
- Project seat needs 6 months out, not just today's headcount.
- Test your core workflow on the free/trial plan for at least a week.
- Ask support whether annual discounts or startup pricing exist.
- Plan your exit: make sure data can be exported at any time.
Price Alternatives to OpenFaaS
9 tools in the same category with their pricing models side by side.
| Tool | Pricing Model | Rating |
|---|---|---|
| Freemium | 4.6 / 5.0 | |
| Freemium | 4.5 / 5.0 | |
| Freemium | 4.5 / 5.0 | |
| Pay as you go | 4.4 / 5.0 | |
| Pay as you go | 4.3 / 5.0 | |
| Freemium | 4.3 / 5.0 | |
| Pay as you go | 4.2 / 5.0 | |
| Pay as you go | 4.1 / 5.0 | |
| Free | 4 / 5.0 |
Frequently Asked Questions
How much does OpenFaaS cost?
OpenFaaS uses a free model: the product can be used without a subscription fee. Exact figures vary by plan and time, so check OpenFaaS's official pricing page for current numbers.
Does OpenFaaS have a free plan?
Yes, OpenFaaS offers a free plan, so you can start at no cost, with feature limits on the free tier.
Are there hidden fees?
Commonly missed costs: extra seats, add-ons (SSO, premium support), usage overages, and the monthly-vs-annual gap. Always read the vendor's pricing FAQ before subscribing.
Which alternative is cheaper than OpenFaaS?
Cloudflare Workers, Deno Deploy, Vercel Functions use a free/freemium model, so the initial cost is zero — ideal if you want to cut spending.
Can pricing be negotiated?
For enterprise plans or large annual contracts, there is almost always room to negotiate. Talk to sales, compare offers from two vendors, and ask for free add-ons (onboarding, support) as part of the deal.
Conclusion
OpenFaaS's pricing follows a Free model — understand how it works, calculate your seat/usage needs, then compare against alternatives in the Serverless category before subscribing. The right decision is not the cheapest one, but the one that matches your team's usage pattern.