Phusion Passenger

phusionpassenger.com · checked 7 Oct 2026

#6 · Application Servers #21 · Web Server Software

Visit phusionpassenger.com ↗ Alternatives Phusion Passenger vs Gunicorn

How it plugs in

—Public API

NoOpen source

YesFree tier

Signal on Application Servers6.1#6 of 28

Passenger is an application server that runs and automatically manages web applications.

Pricing

Passenger Enterprise Bronze support1 support ticket per year · Max 5 day response time · Community, email, and chat supportFree
Passenger Enterprise Silver supportper GB/year · 6 support tickets per year · Max 3 day response time · 1 year support for older versions$23.52/yr
Passenger Enterprise Gold supportper GB/year · 18 support tickets per year · 1 day response time · 3 year support for older versions · Full stack consultancy max 4 hours/year$89.11/yr
Passenger Enterprise Diamond supportper GB/year · Unlimited support tickets · 2 hour response time · 5 year support for older versions · Full stack consultancy max 8 hours/year$308/yr
Passenger EnterpriseCustom pricing based on production and non-production cluster RAM and selected support plan · Pricing page says production starts at $23.52 p/m and non-production starts at $11.14 p/m · Contact sales for a quoteOn request

As phusionpassenger.com lists them, checked 7 Oct 2026.

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Runs on

Web
Windows
Mac
Linux
iOS
Android

Facts

Website: phusionpassenger.com
Price: Free tier · from $23.52/yr
Free trial: Yes
Deployment: Passenger can run locally or on a remote cloud server, and its features page also describes Docker integration.
Enterprise features: Enterprise premium features include mass deployment, rolling restarts, live debugging tools, and dedicated engineering support.
Feature limits: Passenger lists multithreading and its live debugger as Ruby-only premium features.
Headquarters: Amsterdam, Netherlands
Languages: Passenger 6 supports generic language support and the product site describes deploying apps regardless of language.
Open source: The open-source version is free and community supported, and includes arbitrary app hosting, web server integration, request and response buffering, and privilege separation.
Performance: Passenger says it supports evented I/O and multiple concurrency models, and includes Turbocaching.
Privacy: Phusion states that it complies with the European General Data Protection Regulation (GDPR).
Process management: Passenger restarts apps that crash, hang, or leak memory and can limit application memory use and response times.
Security: Passenger says it defends against slow client attacks and common HTTP parser exploits and uses privilege separation.
Security reporting: Phusion directs users to report possible security problems by email to [email protected] and says it works to resolve vulnerabilities and communicate fixes.
Support: Support tiers offer between one ticket per year and unlimited tickets, with stated response times ranging from five days to two hours.

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