DevFreeBooks – A collection of free books for developers
In plain words
DevFreeBooks is a collection of free books designed for software developers. Launched in 2016, the resource aggregates programming-related materials in one accessible location. It serves developers seeking learning materials without cost, covering various technical topics relevant to software development. The project is maintained as an open repository, making it a useful reference for those building technical skills or seeking specific programming knowledge.
written from the facts on this page · September 2026
More life & fun this month
the category →- TL
Life & fun · 10d ago · louisabraham.github.io

Photosynthesis fires two of your iPhone
Life & fun · 28d ago · photosynthesis.camera
SoloUno▲310Take control of hair pulling, nail biting & skin picking
Life & fun · 28d ago · solouno.io

Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
Life & fun · 26d ago · everycube.alen.is


Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
Life & fun · 27d ago · baselashraf81.github.io
Launched alongside, November 2016
the whole month →
- AV
Life & fun · 2016 · cssreference.io
Netflix Offline▲1,068Watch Netflix anytime without an internet connection
Life & fun · 2016 · help.netflix.com

- PF
Life & fun · 2016 · primitive.lol

Explore machine learning by playing w/ pics, music, and more
AI · 2016 · labs.google