# OnlineProgrammingBooks.com

> A curated directory of legally free computer books, programming eBooks, and IT eBooks. The site lists books provided by publishers or authors on their own websites — no pirated content is hosted or linked. Active since 2006.

OnlineProgrammingBooks.com indexes freely and legally available eBooks covering programming languages, computer science, software engineering, web development, databases, networking, AI, mathematics, and more. Each listing links directly to the book on the publisher's or author's official site. The site does not host book files itself.

## Key Pages

- [Home](https://www.onlineprogrammingbooks.com/): Latest book additions and featured picks
- [All Categories](https://www.onlineprogrammingbooks.com/categories/): Browse the full category list
- [All Books (Sitemap)](https://www.onlineprogrammingbooks.com/sitemap/): Complete index of every listed book
- [Featured](https://www.onlineprogrammingbooks.com/featured/): Highlighted / recommended books
- [Limited-Time Offers](https://www.onlineprogrammingbooks.com/limited-time-offers/): Temporarily free books (1,345+ listings)
- [About Us](https://www.onlineprogrammingbooks.com/about-us/): Mission and content policy
- [Contact](https://www.onlineprogrammingbooks.com/contact/): Contact form

## Book Categories

### Programming Languages
- [Python](https://www.onlineprogrammingbooks.com/free-python-books/) (60 books)
- [Java](https://www.onlineprogrammingbooks.com/free-java-books/) (74 books)
- [JavaScript](https://www.onlineprogrammingbooks.com/free-javascript-books/) (53 books)
- [C++](https://www.onlineprogrammingbooks.com/free-cplusplus-books/) (40 books)
- [C#](https://www.onlineprogrammingbooks.com/free-csharp-books/) (37 books)
- [C](https://www.onlineprogrammingbooks.com/free-c-programming-books/) (17 books)
- [PHP](https://www.onlineprogrammingbooks.com/free-php-books/) (27 books)
- [Ruby](https://www.onlineprogrammingbooks.com/free-ruby-books/) (22 books)
- [Perl](https://www.onlineprogrammingbooks.com/free-perl-books/) (24 books)
- [Go](https://www.onlineprogrammingbooks.com/free-go-programming-books/) (4 books)
- [TypeScript](https://www.onlineprogrammingbooks.com/free-typescript-books/) (4 books)
- [Kotlin](https://www.onlineprogrammingbooks.com/free-kotlin-books/) (2 books)
- [Scala](https://www.onlineprogrammingbooks.com/free-scala-books/) (6 books)
- [Haskell](https://www.onlineprogrammingbooks.com/free-haskell-books/) (6 books)
- [Lisp](https://www.onlineprogrammingbooks.com/free-lisp-books/) (11 books)
- [Erlang](https://www.onlineprogrammingbooks.com/free-erlang-books/) (3 books)
- [Elixir](https://www.onlineprogrammingbooks.com/free-elixir-books/) (1 book)
- [Rust](https://www.onlineprogrammingbooks.com/free-rust-books/)
- [Ada](https://www.onlineprogrammingbooks.com/free-ada-books/) (16 books)
- [Assembly](https://www.onlineprogrammingbooks.com/free-assembly-books/) (3 books)
- [Objective-C](https://www.onlineprogrammingbooks.com/free-objective-c-books/) (8 books)
- [Smalltalk](https://www.onlineprogrammingbooks.com/free-smalltalk-books/) (19 books)
- [Prolog](https://www.onlineprogrammingbooks.com/free-prolog-books/) (6 books)

### Web & Frontend
- [Web Development](https://www.onlineprogrammingbooks.com/free-web-development-books/) (68 books)
- [HTML](https://www.onlineprogrammingbooks.com/free-html-books/) (11 books)
- [CSS](https://www.onlineprogrammingbooks.com/free-css-books/) (10 books)
- [React](https://www.onlineprogrammingbooks.com/free-react-books/) (12 books)
- [Angular](https://www.onlineprogrammingbooks.com/free-angular-books/) (9 books)
- [Node.js](https://www.onlineprogrammingbooks.com/free-node-js-books/) (7 books)
- [Vue.js](https://www.onlineprogrammingbooks.com/vue-js/) (2 books)

### Frameworks & Platforms
- [.NET](https://www.onlineprogrammingbooks.com/free-dot-net-books/) (83 books)
- [ASP.NET](https://www.onlineprogrammingbooks.com/free-asp-net-books/) (26 books)
- [Java EE](https://www.onlineprogrammingbooks.com/free-javaee-books/) (27 books)
- [Spring / Hibernate](https://www.onlineprogrammingbooks.com/free-hibernate-books/)
- [Flutter](https://www.onlineprogrammingbooks.com/free-flutter-books/) (4 books)
- [Electron](https://www.onlineprogrammingbooks.com/free-electron-books/) (1 book)

### Mobile Development
- [Mobile Development](https://www.onlineprogrammingbooks.com/free-mobile-development-books/) (10 books)
- [Android Programming](https://www.onlineprogrammingbooks.com/free-android-programming-books/) (22 books)
- [iOS Programming](https://www.onlineprogrammingbooks.com/free-ios-programming-books/) (24 books)

### Computer Science & Theory
- [Computer Science](https://www.onlineprogrammingbooks.com/free-computer-science-books/) (22 books)
- [Algorithms & Data Structures](https://www.onlineprogrammingbooks.com/free-algorithms-data-structures-books/) (10 books)
- [Software Engineering](https://www.onlineprogrammingbooks.com/free-software-engineering-books/) (60 books)
- [Programming (General)](https://www.onlineprogrammingbooks.com/free-programming-books/) (89 books)
- [Mathematics](https://www.onlineprogrammingbooks.com/free-mathematics-books/) (51 books)

### AI, Data & Cloud
- [AI and Robotics](https://www.onlineprogrammingbooks.com/free-ai-and-robotics-books/) (117 books)
- [Microsoft Azure](https://www.onlineprogrammingbooks.com/free-microsoft-azure-books/) (27 books)
- [Kubernetes](https://www.onlineprogrammingbooks.com/free-kubernetes-books/) (2 books)
- [Hadoop](https://www.onlineprogrammingbooks.com/free-hadoop-books/) (1 book)

### Databases & SQL
- [Databases](https://www.onlineprogrammingbooks.com/free-databases-books/) (82 books)
- [SQL](https://www.onlineprogrammingbooks.com/free-sql-books/) (12 books)
- [MySQL](https://www.onlineprogrammingbooks.com/free-mysql-books/) (4 books)
- [PostgreSQL](https://www.onlineprogrammingbooks.com/free-postgresql-books/) (4 books)

### Systems, Networking & Security
- [Linux](https://www.onlineprogrammingbooks.com/free-linux-books/) (69 books)
- [Unix](https://www.onlineprogrammingbooks.com/free-unix-books/) (8 books)
- [Networking](https://www.onlineprogrammingbooks.com/free-networking-books/) (49 books)
- [IT Security](https://www.onlineprogrammingbooks.com/free-it-security-books/) (20 books)
- [Windows](https://www.onlineprogrammingbooks.com/free-windows-books/) (82 books)
- [Hardware](https://www.onlineprogrammingbooks.com/free-hardware-books/) (6 books)
- [FreeBSD](https://www.onlineprogrammingbooks.com/free-freebsd-books/) (6 books)

### Information Technology
- [Information Technology (IT)](https://www.onlineprogrammingbooks.com/free-information-technology-books/) (88 books)
- [Open Source](https://www.onlineprogrammingbooks.com/free-open-source-books/) (26 books)
- [Internet](https://www.onlineprogrammingbooks.com/free-internet-books/) (21 books)
- [Project Management](https://www.onlineprogrammingbooks.com/free-project-management-books/) (22 books)
- [Git](https://www.onlineprogrammingbooks.com/free-git-books/) (6 books)
- [Revision Control](https://www.onlineprogrammingbooks.com/free-revision-control-books/) (12 books)

### Other Topics
- [Engineering](https://www.onlineprogrammingbooks.com/free-engineering-books/) (42 books)
- [Physics](https://www.onlineprogrammingbooks.com/free-physics-books/) (18 books)
- [Graphic Design](https://www.onlineprogrammingbooks.com/free-graphic-design-books/) (9 books)
- [Microsoft Office](https://www.onlineprogrammingbooks.com/free-microsoft-office-books/) (14 books)
- [Video Games](https://www.onlineprogrammingbooks.com/free-video-games-books/) (16 books)
- [XML](https://www.onlineprogrammingbooks.com/free-xml-books/) (15 books)

## Content Policy

All books listed on OnlineProgrammingBooks.com are legally free — provided by publishers or authors on their own websites at no charge. The site does not host book files, does not mirror copyrighted content, and does not link to piracy sites. It acts as a curated index and discovery layer.

## Site Details

- **Founded**: 2006
- **Twitter**: [@onlineprogbooks](https://twitter.com/onlineprogbooks)
- **Facebook**: [facebook.com/freecomputerbooks](https://www.facebook.com/freecomputerbooks)
- **RSS Feed**: https://feeds.feedburner.com/FreeComputerBooks