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CentralOps collection of DNS, WHOIS, traceroute, email, and network lookup tools.
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ai6.net
A free URL shortener that converts long links into shorter ones for sharing in social and online marketing. Links pass through the ai6.net domain, with QR codes and beta shrunken link statistics noted as new. The free version is family friendly only, excludes adult sites and redirection sites, and has a 30 day no hit limit.
pretendo.network
Pretendo Network is a free and open source replacement for Nintendo's servers for the 3DS and Wii U, built through clean-room reverse engineering. It aims to preserve online functionality for those consoles, and Cemu 2.1 officially supports it under network account options. Connecting on consoles requires hacks such as Aroma for Wii U and Luma3DS for 3DS, though Wii U also has a limited hackless SSSL method.
letsenhance.io
Let's Enhance is an AI-powered platform offering online and API-accessible tools for image and video enhancement, upscaling, restoration, and generation. Users upload JPG, PNG, or WebP files, select an enhancement mode, and download processed outputs. The service supports use cases including ecommerce product photography, print preparation, and AI art refinement, with free and paid credit-based subscription plans available.
portchecker.co
Port Checker is a free online tool for checking open ports on a computer or device and verifying port forwarding setup on a router. It can help diagnose connection errors and problems with firewall setup, and supports entering a custom target IP address.
fontgeneratoronline.com
A browser-based tool that converts ordinary text into lookalike Unicode characters for copying and pasting into social media posts and profiles. It offers a variety of font styles, works without downloads or installation, and is described as free. The site notes that screen readers cannot read the special characters and that some networks filter certain symbols.
aware-online.com
Aware-Online provides a free collection of custom Open Source Intelligence (OSINT) scripts and links to third-party OSINT tools, alongside tutorials, to support effective internet and social media investigations. The provider does not actively monitor information entered into its scripts.
isp.tools
Is a free platform offering network diagnostic tools (ping, traceroute, MTR, DNS, WHOIS, HTTP, etc.) tailored for ISPs and infrastructure professional
2qr.info
2QR is a free online QR code generator that creates QR codes for URLs, Wi-Fi networks, vCards, text, and other data types. The tool operates entirely in the user's browser with no tracking, and provides a bookmarklet for one-click URL QR code generation.
db-ip.com
DB-IP provides an IP geolocation API and database covering IPv4 and IPv6 address spaces, with data on locations and network intelligence. It lists uses including location-aware content, traffic surveys and risk analysis. A free download is offered.
ipvoid.com
IPVoid is a free service from NoVirusThanks Company Srl offering online IP address, network and DNS tools. It began in 2010 as an IP blacklist checker and later added more tools, now numbering more than 80, usable from a web browser without registration.
portcheckers.com
PortChecker is a free online tool for checking whether the ports of an internet-connected device are open or closed. It can also ping a remote server and test port forwarding settings. The tool attempts a TCP connection and reports success or a port open signal. Checking requires the computer to be reachable via a public IP address or have a port forwarded.
projectcsv.github.io
Project CSV is a free, open-source web application for viewing and editing .csv files in a browser or offline. It processes file data locally on the user's device without sending it over the network or collecting other data. The application allows selecting .csv files, adjusting settings, generating editable tables, and downloading the edited table.
qrcodly.de
QRcodly is a free online QR code generator and URL shortener. It creates unlimited static and dynamic QR codes without watermarks for URLs, WiFi networks, vCards and other content types, with custom designs, logos and templates. It also provides short links, scan analytics, tags, custom domains and bulk import and export.
textstudio.com
TextStudio is a free online font style generator for creating text style effects, including 3D text, fonts, colors, and animation. It offers makers for classic text, 3D animation, buttons, and text warping, and provides font styles for business and social network use.
kriztalz.sh
TracerouteVisualizer is a free browser tool that visualizes traceroute output with geographic maps. Users paste standard traceroute, tracert, flyingroutes, or MTR output, and the tool shows hop addresses, hostnames, locations, ISP and AS information, packet loss, response times and IXP detection. It is aimed at network administrators and security researchers for troubleshooting and security research.
aws.amazon.com
An AWS program offering students and educators no-cost access to cloud computing skills training developed by AWS experts, plus career pathways for students. It provides a library of free, self-paced online training and hands-on labs covering storage, compute, networking, databases and cloud operations. Learners as young as 13 can register with an email address, and learners 18 and older can access a job board.