Find free or open source alternatives to the following paid software

NSFOCUS WAF

Shield your applications with our versatile WAF, a critical component of defense-in-depth security. Deploy it as a standalone solution, seamlessly integrate it with our ADS Series for enhanced protection, or leverage its cloud-based deployment for unrivaled flexibility.

Imperva WAF

Imperva's Web Application Firewall is the industry-leading solution to help defend your web application from external and internal threats.

AWS WAF

AWS WAF helps you protect against common web exploits and bots that can affect availability, compromise security, or consume excessive resources.

Proto.io

Build interactive web, iOS, Android, and other low or high-fidelity prototypes right into your web browser. Drag and drop ready-to-use, easily customizable templates, UI components, icons, and more, to prototype in minutes! No coding skills required.

Balsamiq

Balsamiq is the go-to low-fidelity wireframing tool for product managers, founders, devs, & UX teams worldwide. It's the fast, focused way to design, communicate, and share your ideas.

Sketch

Sketch is the all-in-one platform for digital design — with collaborative design tools, prototyping and developer handoff. Get started for free.

Axure RP

The most powerful way to plan, prototype and handoff to developers, all without code. Download a free trial and see why UX professionals choose Axure RP.

TeliportMe

The best virtual tour software trusted by 20,000+ businesses. Create stunning 3D virtual tours for a range of industries, from real estate to schools using TeliportMe.

Pano2VR

Pano2VR is a powerful virtual tour software that converts your panoramic or 360° photos and videos into interactive experiences.

Krpano

krpano Panorama Viewer - krpano is a small and very flexible high-performance software for showing all kind of panoramic images on the web. It can be used for very detailed high-resolution images, for interactive virtual tours, custom designed user-interfaces and many things more.

Paperform

Paperform is a flexible online form builder that combines thoughtful design with serious digital smarts.

Typeform

Build beautiful, interactive forms — get more responses. No coding needed. Templates for quizzes, research, feedback, lead generation, and more. Sign up FREE.

SurveyMonkey

Use SurveyMonkey to drive your business forward by using our free online survey and forms tool to capture the voices and opinions of the people who matter most to you.

Zoom

Zoom offers pricing plans to fit your unique needs. Use Zoom for free, or explore our Pro and Enterprise-ready packages to learn which one is right for you.

LiveWebinar

Most advanced webinar software. Fully customisable and unique on the market. Try an advanced platform for webinars fully tailored to your business.

RemotePC

Remote Desktop Access solution for your PC, Mac, Linux and mobile devices.

Oray

Sunflower remote control management software can achieve remote desktop connection, remote monitoring, remote maintenance, remote customer service support and other functions in enterprise IT, e-commerce, e-sports, outdoor equipment and other fields, and provide feasible remote control solutions, using the advantages of the software to quickly improve efficient work and solve related problems. If required, Sunflower can provide customized solutions according to the characteristics of the industry.

TeamViewer

Remote desktop access solutions by TeamViewer: connect to remote computers, provide remote support & collaborate online ➤ Free for personal use!

GlobalSign

Experts in automated, Scalable, Integrated Digital Certificates Solutions, SSLs/TLSs, managed PKI, IoT, authentication & email security. Learn more about our identity management services.

Entrust

Entrust is a trusted global leader in identity, payments, and data security solutions. Learn more about our cutting-edge solutions.