blocklists
nextdns
Ad and tracker blocklist definitions for NextDNS.
Protect systems, find vulnerabilities, and improve privacy.
nextdns
Ad and tracker blocklist definitions for NextDNS.
Nick-Gottschlich
nmatt0
IoT static scanner for secrets, SBOM, CVEs and more.
NodePassProject

A secure, efficient TCP/UDP tunneling solution that delivers fast, reliable access across network restrictions using pre-established TCP/QUIC/WebSocket or HTTP/2 connections.
noptrix
Async HTTP(S) scanner that greps response bodies and headers for strings or regex across hosts, ports, CIDR/ranges and TLS-cert vhosts.
norsehorse-dev
Kotlin implementation of the age encryption protocol for Android, with SSH key support. Encrypt and decrypt files locally — no servers, no accounts.
norsehorse-dev
OpenPGP for macOS, Linux and Windows — the desktop member of the PGPony family
NoWayJA
Convert Word docs to Markdown privately - 100% offline, no uploads. Perfect for processing sensitive documents with Ollama, LM Studio, GPT4All & other local AI tools. Just double-click the standalone/word-to-markdown.html file to use.
NubleX
Cross-platform identity spoofing toolkit - MAC randomization + wire-level Windows TCP/IP persona via NFQUEUE packet rewriting. For authorized pentesting.
ofri09bs
oke-py
GitHub Action to run `npm audit`
okhsunrog
olerast67
Suflyor (Суфлёр): free voice-following teleprompter app for Android. Scrolls as you speak, floats over Instagram, TikTok and the camera. Speech recognized on the phone in 13 languages, no internet permission. Телесуфлёр по голосу для Android.
OliverBrotchie
omerdduran
The most up-to-date list of Turkish ads to block ads on Turkish websites
ontola

Keyboard-first Android launcher with search and an ad-free browser
open-policy-agent
opencybersecurityalliance
This project consists of an open source library allowing software to connect to data repositories using STIX Patterning, and return results as STIX Observations.
opendp
Tools and service for differentially private processing of tabular and relational data
openguardrails
OpenGuardrailsBench (OGB): an open, reproducible benchmark for AI guardrails across safety, security, privacy and policy
openhackai
Open Source Agentic Security Scanner
openziti
Ziti SDK for JVM
Oppidi
Serverless Privacy-First Protective DNS Resolver
Orang-Studio