LinuxLinks

20 Useful Free and Open Source PDF Tools

This article focuses on useful PDF tools which can help you create PDFs as well as small utilities/libraries that help you work with PDF.

ADIF Multitool is a command-line tool to validate, modify, and convert ham radio log files.

Our favorite free Linux tools which enable webcams to capture images and video, and to act as a video surveillance device.

chess22k is a chess engine that uses the UCI protocol to communicate with graphical interfaces.

Hash-o-matic generates, compares and verifies MD5, SHA-256 and SHA-1 hashes.

Cataclysm: Bright Nights is a roguelike with sci-fi elements set in a post-apocalyptic world.

lule is a bash(y) alternative to pywal by mostly using pastel to generate the full 255 colors from an image.

John the Ripper is a password security auditing and password recovery tool available for many operating systems.

This is a chess engine written in C.

Collision comes with a simple and clean UI to generate, compare and verify MD5, SHA-256, SHA-512, SHA-1, Blake3, CRC32 and Adler32 hashes.