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Category: Security

Network Security

15 Best Free and Open Source CLI Data Hashing Tools

August 16, 2025 Steve Emms CLI, Roundup, Security

Hashing is the process of passing data through a formula that produces a condensed fixed-value representation, called a hash value.

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Security

NetPeek – discover devices on your local network

August 14, 2025 Steve Emms GUI, Security

NetPeek is a simple network scanner that helps you discover active devices on your local network.

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Network Security

7 Best Free and Open Source Graphical Data Hashing Tools

August 11, 2025 Steve Emms Roundup, Security

Hashing is the process of passing data through a formula to produce a condensed fixed-value representation, called a hash value.

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Security

11 Best Free and Open Source Linux Digital Forensics Tools

August 8, 2025 Steve Emms Roundup, Security, System Software

Digital forensics is a specialist art. It allows investigations to be undertaken without modifying the media.

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Security

Fizz – TLS 1.3 implementation

July 30, 2025 Steve Emms Security

Fizz currently supports TLS 1.3 drafts 28, 26 (both wire-compatible with the final specification), and 23.

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Security

PurrCrypt – secure encryption tool

July 30, 2025 Steve Emms CLI, Security

PurrCrypt is a fur-ociously secure encryption tool that encodes your secrets as adorable cat and dog sounds.

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Wifi

10 Best Free and Open Source Wireless Security Tools

July 29, 2025 Steve Emms Internet, Roundup, Security

Wireless security is the prevention of unauthorized access or damage to computers or data using wireless networks, which include Wi-Fi networks.

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Security

TruffleHog – discovery, classification, validation, and analysis tool

July 21, 2025 Steve Emms CLI, Security

TruffleHog is a secret scanning engine that detects and helps resolve exposed secrets across your entire tech stack.

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Encrypted Files

v02enc – symmetric encryption for multiple recipients

July 19, 2025 Steve Emms CLI, Security

v02enc is a password-based encryption application that supports several recipients and has the option to update an encrypted file.

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Selection of utilities

Sysdig – dig deeper

July 15, 2025 Steve Emms Security, System Software

Sysdig is a universal system visibility tool with native support for containers.

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QCalcFileHash – hash calculator

July 9, 2025 Steve Emms CLI, GUI, Security

QCalcFileHash is a calculator hash: SHA1, SHA-224, SHA-256, SHA-384, SHA-512, MD5, CRC32, CRC8, and others.

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Network Security

md5 – generate / check MD5 message digest

July 9, 2025 Steve Emms CLI, Security

md5 is a command line utility which generates and verifies message digests (digital signatures) using the MD5 algorithm.

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Network Security

dano – hashdeep/md5tree for media files

July 8, 2025 Steve Emms CLI, Security

dano is a CLI tool for generating checksums of media bitstreams.

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b3sum – implementation of the BLAKE3 hash function

July 7, 2025 Steve Emms CLI, Security

The b3sum Rust crate, which provides a command line interface. It uses multithreading by default

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Hashrat – hashing tool

July 5, 2025 Steve Emms CLI, Security

Hashrat is a hash-generation utility that supports the md5, sha1, sha256, sha512, whirlpool, jh-22, and more.

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Network Security

hashdir – checksum directories and files

July 4, 2025 Steve Emms CLI, Security

hashdir aims to be the easiest way to hash a file/directory. This is useful when transferring files, archiving data, or detecting duplicates.

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Hash Calculator – calculates around 50 cryptographic hashes of strings and files

July 3, 2025 Steve Emms CLI, Security

Hash Calculator is a console tool that can calculate about 50 cryptographic hashes of strings and files.

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Anti-Malware Tools

Kapitano – modern, user-friendly malware scanner

June 27, 2025 Steve Emms Security

Kapitano is a modern, user-friendly malware scanner for Linux. It’s a frontend to ClamAV.

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Security

diceware is a passphrase generator

June 19, 2025 Steve Emms CLI, Security

diceware is a passphrase generator. It generates passphrases by concatenating words randomly picked from wordlists.

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Security

OTI is a modern web application designed for secure, one-time information sharing

June 17, 2025 Steve Emms Security

OTI (One Time Information) is a modern web application designed for secure, one-time information sharing.

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