Life & fun · alternatives · 2026
24 alternatives to CyberBluePDF
CEH PDFs, Notes & Tools for Beginners
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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BreezePDF lets you edit, sign, merge, compress, redact, OCR, fill forms, extract tables, and use 30+ more PDF tools — all in the browser, no sign-up. Files never leave your computer. I built it because when people search Google for common PDF tasks, many of the tools they find upload documents to a server. I wanted an option that keeps files local instead. I posted an earlier version on HN last spring: https://news.ycombinator.com/item?id=43880962 At the time it only supported a small set of features. Over the last 10 months I rebuilt large parts of it and expanded it to…
2025 · breezepdf.com · its alternatives →
- 2TC
Looking to get some feedback from the Hacker News community. I wrote the book with a focus on penetration testers and red teamers, but there are great examples for network admins, developers, and blue team defenders as well. You can pick up a copy for free here through May 19, 2019: https://gumroad.com/l/the_cyber_plumbers_handbook/hackernews... Please note, because it's hosted on Gumroad, it does require an email. If you don't want to give out your actual email, check out an anonymous email service. I give it away to students for free, so if you know of one that…
2019 · its alternatives →
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CTFGuide▲79CTFGuide provides tools to teach and learn cybersecurity
2021 · ctfguide.com · its alternatives →
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- 6HC
2022 · hnpdf.com · its alternatives →
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Pentest List▲61Discover the best penetration testing tools, security resources, and ethical hacking content. Community-driven platform for cybersecurity professionals.
2024 · pentestlist.com · its alternatives →
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Master cybersecurity with hands-on courses by industry experts. Learn pentesting, ethical hacking, and SOC operations through real challenges.
Jan 2026 · academy.subverted.io · its alternatives →
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ToolPDFs▲2557 private document tools that run in your browser
Aug 2026 · toolpdfs.com · its alternatives →
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ByteCTF▲6A Begginer Friendly CTF Platform For Hackers
2025 · bytectf.netlify.app · its alternatives →
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11 free PDF tools that run 100% locally
Jul 2026 · securepdfsuite.com · its alternatives →
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I created this tool to make it quick and easy to sign PDF contracts, without having to deal with installing additional software and without worrying that my PDFs will get uploaded to a third party. It supports the bare minimum for my most common usecases. It is not intended to be a full-featured PDF editor. Features include filling PDF forms, inserting images and text, and rotating PDFs. Check it out by either picking a PDF of your own - https://photown.github.io/private-pdf/, or with a preloaded sample PDF -…
2023 · github.com · its alternatives →
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A free, fun platform to learn about cryptography through solving challenges and cracking insecure code. Can you reach the top of the leaderboard?
2020 · cryptohack.org · its alternatives →
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Free educational site with CC0 cybersecurity materials
May 2026 · blackcat568.github.io · its alternatives →
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Learn Cyber Security Easily from the cloud! How to Hack.
2018 · tryhackme.com · its alternatives →
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Cybersecurity learning platform (Completely Free)
2025 · masterhacking.netlify.app · its alternatives →
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- 22BS
2015 · backdoor.sdslabs.co · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →