English-like syntax
Write code that reads naturally. Commands such as
Set, Say, If,
and While are immediately understandable.
Engli 1.0.0 · Python 3.12+
Programming,
in plain English.
Engli is a serious, general-purpose, Turing-complete programming language designed to read like English — without sacrificing real programming power.
Set name to "World".
Say "Hello, {name}.".The language
English-like.
Actually powerful.
Engli keeps the syntax readable while providing the building blocks you'd expect from a real programming language.
Turing-complete
This isn't a toy syntax. Engli supports the control flow, data structures, functions, and runtime features needed for general-purpose programming.
Functions
Define reusable functions with readable declarations, arguments, return values, and normal program structure.
Rich data structures
Work with lists, maps, objects, custom types, and enumerations directly in the language.
Real-world I/O
Engli can work with files, terminal commands, HTTP, JSON, and imported modules.
Concurrency
Start tasks and wait for them to finish using readable concurrency primitives.
Readable by design
Code that explains itself.
Engli uses a deterministic grammar while keeping its programs approachable. You shouldn't need to decode punctuation before understanding what the program does.
example.engli
Set name to "AB".
Set age to 20.
If age is greater than or equal to 18:
Say "Hello, {name}.".A tiny taste
It looks like English.
But underneath, Engli has a lexer, parser, semantic analyzer, interpreter, runtime, and standard library.
program.engli
Set x to 10.
Add 5 to x.
Say x.output
15Beyond hello world
Built for actual programs.
Engli's syntax may be friendly, but its feature set goes far beyond basic examples.
Imports & modules
Split programs into multiple files and import functionality where you need it.
JSON
Parse HTTP responses and other JSON data directly from Engli programs.
HTTP
Send HTTP requests and work with their responses from within the language.
Filesystem
Read files and interact with data stored on disk.
Terminal commands
Execute terminal commands and store their results in Engli variables.
Error handling
Use structured try/error handling for programs that need to deal with failures.
Under the hood
A real interpreter.
Engli follows a traditional language implementation pipeline, from source code all the way to execution.
Source
.engli
Loader
reads code
Lexer
tokens
Parser
AST
Semantic
validation
Interpreter
execution
Command line
One command to run it.
Install Engli, write a program, and run it directly.
terminal
$ python3 -m venv .venv
$ source .venv/bin/activate
$ pip install -e .
$ engli hello.engli
Hello, World.
$ engli repl
Engli REPL 1.0.0
> Set x to 10.
> Add 5 to x.
> Say x.
15
Give English
a compiler.
Explore the source, read the documentation, or start writing Engli programs.