A collective list of free APIs

Magnificent app which corrects your previous console command.

The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.

A little bit about a linux kernel

The OWASP Cheat Sheet Series was created to provide a concise collection of high value information on specific application security topics.

Recovers passwords from pixelized screenshots

⛅ The right way to check the weather

🗃 Open source self-hosted web archiving. Takes URLs/browser history/bookmarks/Pocket/Pinboard/etc., saves HTML, JS, PDFs, media, and more...

A community-supported supercharged version of paperless: scan, index and archive all your physical documents

Download your Spotify playlists and songs along with album art and metadata (from YouTube if a match is found).

Privacy-respecting metasearch engine

Apprise - Push Notifications that work with just about every platform!

OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch.

A keyboard-driven, vim-like browser based on Python and Qt.

Easy & Flexible Alerting With ElasticSearch

Open-source cron job and background task monitoring service, written in Python & Django

Free and Open Source Machine Translation API. Self-hosted, offline capable and easy to setup.

Collect your thoughts and notes without leaving the command line.

🔍 Google from the terminal

A supercharged version of paperless: scan, index and archive all your physical documents

a Disqus alternative

The SimpleLogin back-end and web app

A terminal-based presentation tool with colors and effects.

IntelOwl: manage your Threat Intelligence at scale

Command line interface to the freedesktop.org trashcan.

SSH server & client security auditing (banner, key exchange, encryption, mac, compression, compatibility, security, etc)

Fast and powerful SSL/TLS scanning library.

Archivy is a self-hostable knowledge repository that allows you to learn and retain information in your own personal and extensible wiki.

Modern, privacy-friendly, and detailed web analytics that works without cookies or JS.

Watch (parts of) webpages and get notified when something changes via e-mail, on your phone or via other means. Highly configurable.