Nginx
freemium
High-performance web server, reverse proxy, and load balancer with a commercial Plus tier.
Free application server software worth evaluating in 2026
Not every application server software evaluation starts with budget approval. The products below offer free tiers, free plans, or community editions, which gives IT teams a real way to test capabilities before paying for a license. The full category follows for context.
1 of 8 products in this category match the free access filter and are highlighted below.
Back to all Application Server Software tools, or browse the full software directory. You can also run head-to-head comparisons or read about our review methodology.
For background on scoring, see how rankings work. Our editorial articles add deeper analysis, the glossary clarifies vendor terminology, and our calculators help estimate ROI before the shortlist narrows further.
Products with free access
Other application server software
The rest of the application server software category, listed because the free access filter above did not select them. Worth reading when the highlighted options do not fit.
Apache Tomcat
open-source
Open-source Java servlet container and web server for deploying Java-based web applications.
GlassFish
open-source
Open-source Jakarta EE-compliant application server for enterprise Java workloads.
Gunicorn
open-source
Python WSGI HTTP server for running Django and Flask applications in production.
Microsoft IIS
subscription
Windows-native web server for hosting ASP.NET, PHP, and static sites with deep Windows Server integration.
Puma
open-source
Concurrent Ruby HTTP server designed for speed and parallelism in Rails and Rack applications.
Uvicorn
open-source
Lightning-fast ASGI server for Python async frameworks like FastAPI and Starlette.
WildFly
open-source
Open-source Jakarta EE application server, the community upstream of Red Hat JBoss EAP.
Common questions about free application server software
Are free application server software good enough for production?
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Some free tiers are production-capable for small teams, but most limit features such as reporting, automation, or multi-tenancy. Evaluate the free version against your actual workflow before assuming it will scale.
What do free application server software typically limit?
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Common limits include endpoint or user caps, restricted integrations, basic reporting, no SLA-backed support, and missing enterprise features such as SSO, RBAC, or audit logging. Check what triggers the upgrade.
How do I compare free application server software options?
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Focus on the constraints that matter in your environment: device limits, OS coverage, automation depth, and what happens when you hit the free tier ceiling. A free product that forces a full migration at scale costs more than starting with affordable paid software.