Open-source alternatives to Fontfaceobserver

Typeset is an HTML pre-processor for web typography which provides typographic features used traditionally in fine printing which remain unavailable to browser layout engines. Typeset's processing brings the following to your webpages:

LIVE DEMO Typr.js is a Javascript parser and utility for working with fonts (TTF, OTF, TTC, WOFF). It is an alternative to opentype.js. It is the main text engine for Photopea image editor.

ImageSharp is a .NET image processing library and manipulation framework used for decoding, encoding, and modifying digital images. It functions as a comprehensive toolkit for resizing, cropping, and applying pixel-level filters while managing color profiles and pixel data across various file formats. The project integrates a 2D vector graphics engine and a typography rendering engine to draw geometric shapes, paths, and complex stylized text onto images. It also includes a geometry boolean operation library for calculating intersections, unions, and differences between complex polygons and c

minegrub-theme is a visual skin for the GRUB bootloader that mimics a game main menu. It provides a collection of backgrounds and layout configurations to style the Linux kernel boot selection screen. The project implements a dynamic boot interface that cycles through different background images and splash text phrases on every startup. It also includes a system information display that calculates and renders the number of installed system packages directly within the boot menu. The tool manages interface layouts using vertical offset calculations to prevent element overlap across different

HTextView is an animated text rendering library and UI motion design framework used to create dynamic text effects such as typing and fading. It serves as a text motion engine and typography tool for applying visual transitions and movement to text elements on a screen. The library integrates custom typography support, allowing the loading of external typeface files to apply specific branding and styles to animated presentations. It utilizes a motion engine to animate the scale and opacity of text, facilitating fluid visual transitions. The system manages these effects through a frame-based

pdf-lib is a JavaScript PDF manipulation library used for creating, modifying, and editing PDF documents programmatically. It functions as a cross-runtime tool compatible with Node, Browser, Deno, and mobile JavaScript environments. The library provides a programmatic interface for document editing and form generation. It supports building interactive PDF forms, populating existing fields with custom data, and flattening forms into static content. Its broader capabilities include generating new documents from scratch, rearranging or copying pages between files, and managing document metadata

loadCSS is an asynchronous CSS loader and non-blocking stylesheet injector. It provides a technical implementation for loading stylesheets without blocking the browser rendering process to maintain a responsive user interface. The project implements a specific CSS loading pattern to detect when asynchronous stylesheets have finished loading across different web browsers. This allows for the execution of callback functions only after a stylesheet has fully loaded to ensure consistent visual behavior. The tool covers programmatic stylesheet insertion, dynamic injection based on application log

android-iconify is a multi-provider icon framework and library for Android applications. It enables the integration and management of vector graphics and font icons from various external providers within a single system. The framework allows for custom icon font integration by registering font files and character maps to expand the available library of graphics. It includes a vector graphic drawable renderer to display scalable icons across different screen densities. The system supports rendering vector icons as drawable objects and embedding scalable graphics directly into text spans so th

QuestPDF is a C# PDF generation library and layout engine used to create structured documents, reports, and invoices. It utilizes a fluent API and a component-based layout approach to convert code into high-fidelity PDF and XPS files. The library distinguishes itself with a dedicated layout debugger that provides real-time previews, hot-reload capabilities, and visual boundary tools to map rendered elements back to source code. It also functions as an accessibility tool, providing semantic tagging and navigational aids to ensure documents comply with international accessibility and archival s

Lettering.js is a JavaScript typography library that divides text strings into granular HTML elements. It wraps individual characters, words, and lines in tags to enable precise CSS control and advanced visual styling. The library includes an accessible text wrapper system that maintains screen reader compatibility. It manages text accessibility by mirroring the original content into ARIA labels on containers and hiding fragmented elements from assistive technologies. The tool provides capabilities for granular text manipulation and DOM-based decomposition. These mechanisms facilitate web ty

This project is a comprehensive guide and collection of best practices for testing Node.js backend applications. It provides a curated set of patterns and reference examples for writing reliable unit, integration, and component tests. The project distinguishes itself through specific strategies for backend integration, including detailed methods for API contract testing against OpenAPI specifications and shared schemas. It offers specialized guidance on managing message queue testing, focusing on idempotency, resilience, and asynchronous event synchronization. The guide covers a broad range

Adds OpenType features—ligatures, kerning, and more—to Normalize.css.

Convert opentype to geometry. Based on the opentype-layout module.

From a ttf or otf, generate the required ttf, eot, woff, svg and css for the font to be used in browsers.

Open-source webfont service

A small and fast JavaScript hyphenation engine. Can be used in Node.js and as a jQuery plugin.

This is an implementation of the Knuth and Plass line breaking algorithm using JavaScript. The goal of this project is to optimally set justified text in the browser, and ultimately provide a library for various line breaking algorithms in JavaScript.

See documentation on pluminjs.com.

Fontkit is an advanced font engine for Node and the browser, used by PDFKit. It supports many font formats, advanced glyph substitution and layout features, glyph path extraction, color emoji glyphs, font subsetting, and more.

Your web font utility belt. It can subset web fonts. It can show you what unicode-ranges are used on a web site (optionally per font-family). It can also subset web fonts automatically using the unicode-ranges it found. It makes julienne fries.

Fontello is a custom font package builder and icon font generator designed to combine selected icons from multiple libraries into a single minimized font file. It functions as a service for converting SVG vector graphics into font glyphs through automated path merging and transformations. The project provides a programmatic interface for automating icon workflows, allowing the management of configurations and the triggering of font generation via network requests for build pipelines. This enables the integration of custom font production into external automation workflows and command line too

An extremely easy way to use custom fonts in emails without having to use art software.

A tool to chop off useless fonts glyphs and convert TTF/OTF into WOFF & WOFF2

Experimental word-wrapping and layout for Opentype.js.

keep font-size in proportion with its containers size