Markdown

Markdown document engine: parse, query, lint, build, render, and safely edit Markdown with minimal diffs.

composer require alto/markdown

RST

reStructuredText document engine: parse, query, lint, build, render, translate, and safely edit RST with minimal diffs.

composer require alto/rst

Front Matter

Fast front matter extraction and strict YAML-subset decoding for PHP.

composer require alto/frontmatter

CommonMark

A CommonMark and GitHub Flavored Markdown extensions collection.

composer require alto/commonmark

Code Highlight

Syntax highlighting for PHP applications.

composer require alto/code-highlight

Twig Code Highlight

Twig extension for Alto Code Highlight.

composer require alto/twig-code-highlight

Code Diff

Generate, render, and apply code diffs.

composer require alto/code-diff

Language

Programming language identification: extensions, aliases, markers.

composer require alto/language

JSON Patch

RFC 6902 JSON Patch: smart diffs, patching, audit and versioning.

composer require alto/json-patch

Image

Lazy image resizing, cropping and encoding with predictable geometry and efficient multi-output rendering.

composer require alto/image

Favicon

Generate a modern favicon set from a single SVG or PNG file.

composer require alto/favicon

Importmap

Manage, render, and resolve Import Maps.

composer require alto/importmap

Font

Font file reading and metadata: OpenType, TrueType, WOFF, WOFF2.

composer require alto/font

Bezier

Precision toolkit for Bezier curves: evaluate, split, and measure.

composer require alto/bezier

Scale

Compute and manipulate modular scales: typography, rhythm, grids.

composer require alto/scale

Tree

Build, parse, traverse, and print tree structures.

composer require alto/tree