The Best APK Editor Studio Alternatives in 2026

Generate two-factor authentication codes with Proton Authenticator across supported devices, including phones and computers.

Ndiff compares Nmap scan results from two XML files, showing changes such as hosts and ports appearing or disappearing.

The action firewall for AI agents. Enforce policy and human approval before risky tool calls, shell commands, workflows, and production changes, with auditable evidence.

This converter changes infix expressions into postfix or prefix notation and shows the steps.

Malware investigation and reverse engineering are the focus of REMnux, a Linux toolkit that bundles analysis tools.

Binary Ninja supports software reverse engineering and can be tried in a browser or installed as a desktop application.

Windows program inspection is supported by x64dbg, an open source debugger for both x64 and x32 applications.

Observe and reprogram running programs with Frida’s dynamic instrumentation toolkit.

Browse community-maintained materials and plugins for the Ghidra reverse engineering framework.

Kismet monitors and captures Wi-Fi network traffic, with wireless intrusion detection and wardriving features.

Inspect iOS and macOS applications with Malimite, a decompiler project hosted on GitHub.

Intercept, inspect, and edit HTTP(S) traffic with HTTP Toolkit for debugging and testing.

git-hound searches public GitHub repositories for exposed secrets and credentials.

Build authentication into applications with Better Auth, an authentication framework.

Use reference sheets for reverse engineering, binary analysis, and assembly programming tools.

Discover hosts and map networks with Nmap, a network exploration and security scanning tool.

Inspect HTTPS traffic interactively with mitmproxy, an open-source proxy tool.

Obtain a certificate for a website with Certbot, which helps configure HTTPS.

dnSpyEx continues the dnSpy project as a debugger and assembly editor for .NET.

Manage two-factor authentication codes with OTP Auth, an iOS app listed on the App Store.

CrowdSec provides open-source intrusion prevention, web application firewall, and bot detection tools.

The Snyk Security Database provides vulnerability details and remediation guidance for packages and cloud configurations.

Scan IP addresses and ports concurrently with rang3r, a multithreaded scanner.

OpenCVE tracks vulnerabilities, vendors, products, and weaknesses through searchable security records.