Installation

Starting with Jint 5.0, install the global tool with the .NET 10 SDK or later:

dotnet tool install -g Jint.Browser.Tool

The SDK selects a Native AOT executable for Linux, macOS or Windows on x64 or arm64. No .NET runtime is needed to run it. The browser libraries still target .NET 8 and .NET 10; the SDK requirement is for the native tool package format.

Without .NET

Download a binary from GitHub Releases:

Platform	x64	arm64
Linux (glibc)	jint-browser-linux-x64	jint-browser-linux-arm64
macOS	jint-browser-osx-x64	jint-browser-osx-arm64
Windows	jint-browser-win-x64.exe	jint-browser-win-arm64.exe

Compare its SHA-256 hash with SHA256SUMS on the same release. On Linux/macOS, mark it executable with chmod +x, rename it to jint-browser, and put it on your PATH. On Windows, rename it to jint-browser.exe and put it on your PATH. No Apple notarization or Windows Authenticode signature is provided.

Linux binaries target Ubuntu 22.04 (x64) and Ubuntu 24.04 (arm64) or compatible newer glibc systems. They still need OS libraries such as ICU, OpenSSL and zlib. Alpine/musl is not included. See Native AOT and trimming for the distinction between this executable and using the browser libraries in another native application.

Updating and running

Update it later with:

dotnet tool update -g Jint.Browser.Tool

Show help or the installed version:

jint-browser --help
jint-browser version

The commands are:

Command	Purpose
fetch <url|file>	Load one page and write HTML, text, markdown, or an accessibility outline
eval <url|file> <expression>	Load one page and write an expression result as JSON
serve	Publish a persistent browser over Chrome DevTools Protocol
mcp	Publish one agent browsing session over standard input/output
version	Print the package version

fetch and eval accept HTTP(S) URLs or local files. Local files are loaded as content with their own file: URL as the base, so relative references resolve from the file location.

Durations accept forms such as 30s, 500ms, 5m, or a number of seconds. Sizes accept forms such as 256mb, 512kb, or a byte count.

Unknown options and options missing a required value are usage errors. Use -- to end option parsing when an eval expression begins with -.