Open-source alternatives to Pdfs

This repository serves as the technical documentation source for the .NET ecosystem. It consists of a collection of conceptual guides and technical references written in Markdown, acting as the static site content source for a public documentation portal. The project utilizes a Git-based content management system to handle technical writing through pull requests and automated build pipelines. It distinguishes itself through a specialized infrastructure that aggregates content and samples from multiple repositories and branches into a single unified output. The system covers a broad range of

pysheeet is a technical reference library providing a curated collection of code snippets and implementation patterns for advanced Python development, system integration, and high-performance computing. It serves as a comprehensive guide for implementing low-level network programming, native C extensions, and asynchronous and concurrent programming. The project provides specialized frameworks for the development and deployment of large language models, including tools for distributed GPU inference and high-performance serving. It also includes detailed patterns for high-performance computing

OpenPDF is a Java library and document processor used for creating, editing, rendering, and encrypting PDF documents. It functions as a toolkit for generating new files from scratch, modifying existing document structures, and extracting text content. The project includes a dedicated engine for transforming HTML and CSS content into PDF documents by parsing markup and applying styles. It also provides a rendering engine to convert PDF pages into image formats for thumbnails and previews, alongside a security utility for protecting content via document encryption. The library supports the add

Outline is a full-stack server-side web application designed as a centralized platform for collaborative knowledge management. It provides teams with the infrastructure to create, organize, and share structured documentation through real-time editing tools, while supporting high availability and horizontal scalability in production environments. The platform distinguishes itself through a comprehensive suite of operational and development tools. It includes a command-line interface for managing database schema versioning and structural consistency across deployments, alongside an integrated t

Grav is a flat-file content management system that eliminates the need for a traditional database by storing site content and configuration in human-readable Markdown and YAML files. Built as a modular PHP web framework, it uses a hierarchical page routing system where the physical directory structure directly determines the site's URL paths. The platform is distinguished by its event-driven plugin architecture and a command-line interface that prioritizes system administration, deployment, and maintenance tasks. It utilizes a blueprint-driven system to generate administrative forms from stru

This project is an open-source, self-hosted helpdesk system designed to centralize customer support operations. It functions as an omnichannel platform that aggregates inquiries from email, social media, and messaging services into a unified dashboard, while providing a dedicated portal for customers to track requests and access self-service documentation. The system distinguishes itself through deep integration with e-commerce platforms, allowing agents to view customer order history and profile data directly within the ticketing interface. It features a modular architecture that supports cu

This project is an enterprise knowledge platform designed for teams to create, manage, and publish structured documentation. Built on a high-performance runtime, it provides a centralized environment where contributors can author content using markdown, HTML, or a visual editor. The system is engineered to handle collaborative workflows, ensuring that technical and non-technical users alike can maintain documentation with consistent rendering and version control. What distinguishes this platform is its focus on secure, scalable, and synchronized content management. It features granular path-b

Planning with files is an enterprise knowledge graph platform designed to transform unstructured organizational data into a searchable, interconnected network. By utilizing a graph-based retrieval-augmented generation engine, the system grounds language model outputs in verified internal data, ensuring that responses are explainable, traceable, and free from hallucinations. The platform distinguishes itself through a focus on data sovereignty and secure, private infrastructure deployment. It enables organizations to maintain full control over sensitive information by processing data locally o

BookStack is a self-hosted knowledge base platform designed for organizing, storing, and managing structured documentation. It utilizes a hierarchical content model that arranges information into nested trees of books, chapters, and pages, supported by a dedicated search index for rapid retrieval across the entire knowledge base. The platform distinguishes itself through deep integration with enterprise identity providers, allowing organizations to centralize authentication and access control via LDAP, SAML, or OIDC. It provides extensive administrative control over the content lifecycle, inc

This project is a static site forum archive and housing market dataset. It serves as a read-only repository of preserved community discussions focused on residential property pricing and real estate trends, stored as a collection of Markdown files to ensure long-term data preservation and portability. The system functions as a web content preservation tool that converts historical forum threads into pre-rendered HTML files for serverless access. This approach organizes forum content archiving and housing market analysis into a permanent digital format to prevent data loss. The archive is bui

mPDF is a PHP library that transforms UTF-8 encoded HTML and CSS into formatted PDF documents. It serves as a PDF generation engine and document architect capable of converting web pages and HTML forms into professional files. The project is distinguished by its multilingual rendering capabilities, providing comprehensive support for bidirectional text, right-to-left scripts, and CJK languages using Unicode font embedding and OpenType layout processing. It further enables professional print-ready design through advanced color modeling in CMYK, precise page dimensioning, and compliance with PD

Leantime is an open-source project management platform designed to track tasks, milestones, and workflows using Kanban boards and Gantt charts. It functions as a strategic planning tool that links daily operational tasks to high-level business goals and long-term objectives, while also serving as a time tracking and billing system for managing work hours and client estimations. The platform differentiates itself through an integrated AI-powered project assistant that decomposes complex tasks, generates status reports, and provides project insights. It further distinguishes its offering with a

PDF-Guru is an AI-powered document processor and study material converter designed to transform textbooks, research papers, and multimedia content into structured flashcards for spaced repetition systems like Anki. It functions as a content pipeline that uses language models to extract key concepts and facts from unstructured documents to generate question-and-answer pairs, cloze deletions, and multiple-choice cards. The system distinguishes itself through a comprehensive PDF management suite and multi-format parsing. It provides advanced document utilities including optical character recogni

This project is a public health dataset providing historical and real-time COVID-19 case and death counts across the United States. It consists of a collection of CSV files containing time-series pandemic data organized by date, state, and county. The dataset includes specialized records for institutional outbreaks, tracking infection and death rates within correctional facilities, colleges, and universities. It also provides statistics on excess mortality to estimate total pandemic impact and survey-based data on mask usage prevalence across different counties. To facilitate geographic anal

This project is a curated ebook repository and technical library containing professional software engineering guides and textbooks. It serves as a resource for computer science and system design, providing educational materials for self-paced learning and reference. The collection is stored in EPUB format to ensure consistent formatting across different reader applications. Content is organized through a directory-based asset system and library indexing to enable navigation by professional topic. The repository distributes materials via a static file structure for offline accessibility, offl

Taskwarrior is a command-line task manager that lets you create, modify, filter, and complete to-do items directly from the terminal. It stores all tasks in a single plain-text file for portability and manual editing, and includes a custom expression language for selecting tasks by status, priority, tags, and date ranges. The tool distinguishes itself through several integrated capabilities. It computes a numeric urgency score for each task based on weighted factors like age, tags, and due date to determine ordering. A recurrence template engine generates new task instances from a template af

This project is a Go language cheat sheet and technical reference designed for rapid lookup of syntax patterns and core language features. It serves as a concise programming guide to Go type systems, tokens, and standard programming constructs. The reference covers foundational areas of the language, including concurrency and parallelism through the use of channels and lightweight threads. It also details data modeling using structs and embedding, as well as the language's approach to explicit error handling via return values. Additional guidance is provided on Go application architecture an

EasyImages2.0 is a self-hosted, database-less image hosting platform. It stores files directly on the server and generates shareable links without requiring a relational database, utilizing flat-file metadata storage and filesystem-based content mapping. The platform includes a centralized web management interface for organizing uploaded media and monitoring site statistics. It features an integrated image processing gateway that automatically resizes, compresses, and converts image formats during the upload process, and can apply custom watermarks to protect ownership. Additional capabiliti

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

This project is a digital collection of academic material on deep learning provided as a machine learning educational resource. It delivers the complete textbook and individual chapters in portable document format for offline study and research. The repository includes electronic publication versions of the textbooks optimized for digital reading devices and e-book readers. It functions as a segmented document repository, providing the text both as a full volume and split into individual chapters to allow for targeted reading.

Leanote is a collaborative Markdown editor, hierarchical note manager, and self-hosted blogging platform. It functions as a knowledge base that uses a document store to organize structured notebooks and rich-text documents. The system enables real-time co-authoring, allowing multiple users to simultaneously edit documents and brainstorm ideas. It also includes a publishing engine that transforms private notes into public-facing blogs using customizable themes and multi-contributor management. The platform provides tools for knowledge management through notebooks and tags, supporting both ric

Fisher is a plugin manager and shell extension manager specifically for the Fish shell. It provides a system for installing, updating, and removing plugins, themes, functions, and completion scripts. The tool uses a flat-file state persistence method to track installed extensions in a plain text file, which enables the synchronization of shell environments across different systems using version control. It covers the full lifecycle of shell extensions, including the discovery of installed plugins, the installation of packages from remote repositories, and the development of distributable she

HowToHunt is a bug bounty hunting knowledge base and a structured guide for web application penetration testing. It provides a research methodology for organizing security testing procedures and validating application behaviors against known vulnerability patterns. The project features a curated library of security flaws and reconnaissance techniques. It organizes security testing into modular playbooks, checklists, and categorical vulnerability mappings to align specific exploitation techniques with target weaknesses. The repository covers a systematic sequence of information gathering task

Bolt is a flat-file content management system that stores site data in structured text files on disk instead of a relational database. It functions as a tool for creating and organizing digital content and site structures through a lightweight administrative interface. The system uses YAML-based data serialization to define content and configuration in human-readable files, facilitating version control and portable exports. It includes a digital asset manager for organizing files and directories, as well as a cryptographic utility for generating time-limited signed URLs to protect private fil

This project is a curated repository of technical learning materials and a personal knowledge base. It consists of version-controlled Markdown summaries covering software architecture, engineering literature, research papers, and professional talks. The collection functions as a digital garden, using bidirectional linking and cross-references to map relationships between technical concepts. Content is distilled from various sources, including technical books, conference talks, and foundational computer science papers, into concise summaries to facilitate recall and study. The system is organ

dbskill is a collection of specialized libraries comprising prompt specifications, diagnostic frameworks, content toolsets, and agent behavioral instructions. It provides a knowledge management system using a four-layer engineering approach to organize facts and patterns into a verifiable decision-making base, alongside a skill library of prompt templates for business diagnostics and content engineering. The project features a business diagnostic framework for analyzing organizational bottlenecks and optimizing business models through structured analysis. It includes a content engineering too

Embed PDF Viewer is a browser-based PDF rendering library that uses a WebAssembly port of the PDFium engine to display documents entirely on the client side, with no server-side processing required. It provides a framework-agnostic core engine layer that manages the PDF document lifecycle, memory allocation, and WebAssembly resource cleanup, with dedicated integration hooks for React and Vue 3 that handle initialization, document loading, and reactive state management. The library offers both a pre-built, embeddable viewer that can be inserted into any web page with a single initialization ca