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HipHop Virtual Machine (HHVM)

HipHop Virtual Machine (HHVM) is a free, open-source virtual machine for executing programs written in Hack.

Place
#21 of 24
Score
5.9
HipHop Virtual Machine (HHVM)'s website

What HipHop Virtual Machine (HHVM) is

HipHop Virtual Machine (HHVM) is a free, open-source virtual machine for executing programs written in Hack. It compiles Hack into intermediate bytecode and uses just-in-time compilation to produce x64 machine code at runtime. HHVM runs on Linux hosts and targets the x86_64 architecture, with the Hack Typechecker included in both prebuilt and source installations. Official packages cover several Debian and Ubuntu versions, including supported LTS releases, while source builds use code checked into GitHub. HHVM includes Proxygen as a built-in web server and offers FastCGI mode for use with a compatible front-end server. Documentation describes FastCGI connections with Apache 2.4 through mod_proxy_fcgi and with nginx, along with supported built-in and dynamic extensions. The project releases often and directs regression reports to GitHub issues. Community links include Hack and HHVM repositories, a Facebook Group, and social accounts.

Good

  • Open-source and free
  • Includes the Hack Typechecker
  • Supports Debian and Ubuntu packages
  • Provides Proxygen and FastCGI modes
  • Can build directly from GitHub source

Watch out

  • Linux host platform only
  • Targets x86_64 architecture
  • FastCGI needs a front-end web server
  • Supports Hack rather than general languages

Who it suits

HHVM suits developers running Hack applications on Linux systems, whether installing Debian or Ubuntu packages or compiling from source. It also fits deployments using Proxygen or FastCGI with Apache or nginx.

Verdict

HHVM combines Hack execution, typechecking, JIT compilation, and web-serving options in a Linux-focused package. Its package and source-build choices support different deployment approaches, while FastCGI deployments require additional server software.

Plans and prices

From HipHop Virtual Machine (HHVM)'s own pricing page, checked 8 Oct 2026.

All about pricing
PlanPriceWhat it gives you
HHVMFreeOpen-source virtual machine for Hack programs

The facts

Each one read from HipHop Virtual Machine (HHVM)'s own pages, with the date it was checked.

What it does

Community support
The documentation links to the Hack and HHVM GitHub repositories, a Facebook Group, and project social accounts as community resources.checked 8 Oct 2026
Extensions
HHVM documentation covers built-in and dynamic extensions that it currently supports.checked 8 Oct 2026
Guest architecture
x86_64checked 24 Sep 2026
Integrations
The documentation describes using FastCGI with Apache 2.4 through mod_proxy_fcgi and with nginx.checked 8 Oct 2026
Language support
HHVM supports the Hack programming language.checked 8 Oct 2026
Maintainer
The documentation footer identifies Meta Platforms, Inc. as its publisher.checked 8 Oct 2026
Purpose
HHVM is an open-source virtual machine designed to execute programs written in Hack.checked 8 Oct 2026
Runtime
HHVM compiles Hack to intermediate bytecode and uses a just-in-time compiler to translate it into x64 machine code at runtime.checked 8 Oct 2026
Source builds
HHVM can be compiled from source to use code as it is checked into GitHub.checked 8 Oct 2026
Support cadence
The project says it makes changes daily and releases often, and asks users to open GitHub issues for regressions in the typechecker or runtime.checked 8 Oct 2026
Supported installs
Official prebuilt packages are available for several versions of Debian and Ubuntu, and supported LTS releases are offered for those distributions.checked 8 Oct 2026
Typechecker
The Hack Typechecker is included whether HHVM is installed from a prebuilt package or compiled from source.checked 8 Oct 2026
Web serving
HHVM has built-in Proxygen and FastCGI server modes; Proxygen is a web server built into HHVM, while FastCGI requires a compatible front-end web server.checked 8 Oct 2026

Money

Free plan
Yeschecked 24 Sep 2026

Where it runs

Host platforms
Linuxchecked 24 Sep 2026

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