H2

Best H2O Alternatives in 2026

Based on real usage data from 0 websites analyzed by StackSee

We analyzed real website data to find the most popular alternatives to H2O. H2O is h2O is a fast and secure HTTP/2 server written in C by Kazuho Oku. See which tools teams actually use instead, backed by real-time detection data.

Top Alternatives to H2O

Technologies in the Web servers category that teams use instead of H2O, ranked by adoption.

1

CA

CactiveCloud CactiveCloud is a freemium based cloud provider and web server for static deployments of websites with HTML builds and serverless functions.

Web servers

2

CA

Caddy Caddy is a Go-based web server known for its simplicity and automatic HTTPS features.

Web servers

3

CE

Centminmod

Web servers

4

CH

Cherokee

Web servers

5

CH

CherryPy CherryPy is an object-oriented web application framework using the Python programming language.

Web servers

6

CO

CouchDB

Web servers

7

CO

Cowboy Cowboy is a small, fast, modular HTTP server written in Erlang.

Web servers

8

AO

AOLserver

Web servers

9

AK

Akka HTTP

Web frameworksWeb servers

10

AM

Amazon EC2 Amazon Elastic Compute Cloud is a part of Amazon.com's cloud-computing platform, Amazon Web Services, that allows users to rent virtual computers on which to run their own computer applications.

Web servers

11

AM

Amber Amber is a web application framework written in Crystal inspired by Kemal, Rails, Phoenix and other popular application frameworks.

Web frameworksWeb servers

12

AN

Angie Angie is a drop-in replacement for the Nginx web server aiming to extend the functionality of the original version.

Web servers

13

AP

Apache APISIX Apache APISIX is an open-source, cloud-native API gateway developed by the Apache Software Foundation. It provides a scalable and high-performance solution for managing and securing API traffic.

Web servers

14

AP

Apache HTTP Server Apache is a free and open-source cross-platform web server software.

Web servers

15

AP

Apache Tomcat Apache Tomcat is an open-source implementation of the Java Servlet, JavaServer Pages, Java Expression Language and WebSocket technologies.

Web servers

16

AP

Apache Traffic Server Apache Traffic Server is an open-source caching and proxying server that serves as an HTTP/1.1 and HTTP/2 reverse proxy with caching capabilities, load balancing, request routing, SSL termination, and support for advanced HTTP features.

Web servers

17

AR

Artifactory Web Server

Web servers

18

AC

actionhero.js

Web frameworksWeb servers

19

BL

Blade

Web frameworksWeb servers

20

DA

Daphne

Web servers

21

DE

Deno A modern runtime for JavaScript and TypeScript.

Web servers

22

EL

ELOG HTTP

Web servers

23

EZ

EZproxy EZproxy is a web server and a reverse proxy that is usually used by libraries as a reverse proxy in front of electronic educational resources databases (e.g.: Scopus, PubMed, or Web of Science) in order to provide authentication and protect privacy.

Web serversReverse proxies

24

EM

EmbedThis Appweb

Web servers

25

EX

Express Express is a web application framework for Node.js, released as free and open-source software under the MIT License. It is designed for building web applications and APIs.

Web frameworksWeb servers

26

FL

Flask Flask is a Python micro web framework ideal for rapidly constructing web applications, offering minimalism, flexibility, and modularity.

Web frameworksWeb servers

27

FR

Fresh Fresh is a full stack modern web framework for JavaScript and TypeScript developers, designed to make it trivial to create high-quality, performant, and personalized web applications.

Web frameworksWeb servers

28

HC

HCL Domino HCL Domino, formerly called IBM Domino (1995) and Lotus Domino (1989), is an enterprise server application development platform.

Web servers

29

HH

HHVM

Web servers

30

HP

HP Compact Server

Web servers

31

HP

HP iLO HP iLO is a tool that provides multiple ways to configure, update, monitor, and run servers remotely.

Web serversRemote access

32

HI

Hiawatha Hiawatha is a secure, lightweight web server developed by Hugo Leisink, designed for ease of use and advanced security features such as protection against SQL injections, XSS, and CSRF attacks.

Web servers

33

HY

Hypercorn Hypercorn is an ASGI web server that supports HTTP/1, HTTP/2, WebSockets, ASGI/2, and ASGI/3 specifications, and can utilize asyncio, uvloop, or trio for asynchronous operations.

Web servers

34

GL

GlassFish

Web servers

35

GO

GoAhead

Web servers

36

GO

Google Web Server

Web servers

37

GU

gunicorn

Web servers

38

IB

IBM HTTP Server

Web servers

39

II

IIS Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.

Web servers

40

IN

Indy

Web servers

41

IN

Intel Active Management Technology Intel Active Management Technology (AMT) is a proprietary remote management and control system for personal computers with Intel CPUs.

Web serversRemote access

42

JB

JBoss Application Server

Web servers

43

JB

JBoss Web

Web servers

44

JE

Jetty Jetty is an open-source web server and servlet container known for its scalability and efficiency, supporting protocols like HTTP and WebSocket for various applications from development tools to cloud services.

Web servers

45

KA

Kangle Kangle is an open-source web server and reverse proxy software widely used in Chinese hosting environments for HTTP caching and virtual hosting.

Web serversReverse proxies

46

KE

Kemal Kemal is a fast and efficient web framework for the Crystal programming language.

Web frameworksWeb servers

47

KE

Kestrel

Web servers

48

KO

Koa

Web frameworksWeb servers

49

LI

LiteSpeed LiteSpeed is a high-scalability web server.

Web servers