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Technology Glossary

CAPTCHA

Alyssa Towns
AT
by Alyssa Towns
Websites use CAPTCHA tests to distinguish between humans and robots. Understand the types of CAPTCHAs and critical considerations when using them.
DefinitionCAPTCHA Software

In this post

In this post

What is CAPTCHA?

A captcha is a security measure used in online forms or websites to distinguish between human users and automated bots. It typically involves presenting users with a challenge, such as typing distorted characters or selecting images, to verify their identity. Captchas help prevent spam, fraud, and unauthorized access to online services by ensuring that only genuine users can proceed.

Related Glossary Terms

CAPTCHA Software
Software that mention captcha as a feature or term.
WPForms
WPForms
UiPath Agentic Automation
UiPath Agentic Automation
Jotform
Jotform
Arkose Labs
Arkose Labs
HUMAN Sightline Cyberfraud Defense
HUMAN Sightline Cyberfraud Defense
DataDome
DataDome
Alyssa Towns
AT

Alyssa Towns

Alyssa Towns works in communications and change management and is a freelance writer for G2. She mainly writes SaaS, productivity, and career-adjacent content. In her spare time, Alyssa is either enjoying a new restaurant with her husband, playing with her Bengal cats Yeti and Yowie, adventuring outdoors, or reading a book from her TBR list.

CAPTCHA Software

This list shows the top software that mention captcha most on G2.

WPForms

WPForms is the WordPress forms plugin with drag & drop online form builder that allows users to create powerful WordPress forms.

UiPath Agentic Automation

UiPath enables business users with no coding skills to design and run robotic process automation

Jotform

Trusted by over 30 million users, Jotform's form builder is the easy way to create and publish online forms from any device. Jotform offers 10,000+ ready-made form templates, 200+ integrations to 3rd party apps, and advanced design features making it the leading online form builder for organizations all over the world. It's popularly used to create payment forms, lead generation forms, registration forms, contact forms, application forms, and more.

Arkose Labs

Arkose Labs solve multimillion-dollar fraud problems for the world's most targeted businesses with zero friction to users.

HUMAN Sightline Cyberfraud Defense

Strengthen security. Stop fraud. Build trust. Humans, bots, and AI agents increasingly act on behalf of legitimate consumers and fraudsters alike. The challenge isn’t just blocking certain traffic types; it’s distinguishing between malicious and legitimate activity, regardless of the source, and responding appropriately in each case. HUMAN Sightline combines advanced detection, customizable mitigation, and investigative intelligence to provide that clarity. The solution protects users and accounts from fraud, abuse, and misuse by humans, bots, and AI agents — and seamlessly enables trusted interactions across the customer journey. By providing direct visibility into key business metrics, HUMAN Sightline allows you to understand and showcase the impact of anti-fraud measures on your bottom line, so you can optimize accordingly.

DataDome

Real-Time Bot Protection The #1 bot protection solution for e-commerce and classified ads businesses - Deploys in minutes on any web infrastructure - Unmatched bot detection speed and accuracy - Dedicated threat research and SOC teams

ManageEngine ADSelfService Plus

A secure, web-based, end-user password reset management program

Automation Anywhere

Automation Anywhere Enterprise is an RPA platform architected for the digital enterprise.

ActiveCampaign

ActiveCampaign offers effortless email and marketing automation. Grow your business with AI-powered automations that suggest, personalize, and validate your marketing campaigns. With hundreds of automation triggers and actions, conditional routing, and an AI-powered drag-and-drop builder, you can create deeper automations than the competition, faster.

Netpeak Checker

Netpeak Checker is a multifunctional research tool for bulk SEO analysis that helps you audit URLs by a wide range of parameters.

Selenium

Oxbotica was founded in 2014 by Oxford professors, Paul Newman and Ingmar Posner. Since then, we have grown from a start-up through to one of the world’s leading autonomous driving software companies. We build software for real-world application, drawing on principles of physics, robotics, maths, AI and a dedicated team to perfect our technology.

Google Workspace

Google Workspace enables teams of all sizes to connect, create and collaborate. It includes productivity and collaboration tools for all the ways that we work: Gmail for custom business email, Drive for cloud storage, Docs for word processing, Meet for video and voice conferencing, Chat for team messaging, Slides for presentation building, shared Calendars, and many more.

All In One WP Security & Firewall

WordPress itself is a very secure platform. However, it helps to add some extra security and firewall to your site by using a security plugin that enforces a lot of good security practices. The All In One WordPress Security plugin will take your website security to a whole new level. This plugin is designed and written by experts and is easy to use and understand. It reduces security risk by checking for vulnerabilities, and by implementing and enforcing the latest recommended WordPress security practices and techniques.

Rocketbot

Rocketbot is the most impressive RPA platform, it is the friendliest and does not require developer knowledge to use it. The practicality of running the robot breaks the barrier of fear of learning on this platform.

Selenium WebDriver

Selenium is an umbrella project encapsulating a variety of tools and libraries enabling web browser automation. Selenium specifically provides infrastructure for the W3C WebDriver specification - a platform an

Contact Form 7

Contact Form 7 is a tool to manage multiple contact forms.

QuestionPro

QuestionPro is a leading provider of online survey software that allows our users to generate the insights they need to make better business decisions. Our software includes not only tools for creation, distribution, and analysis of surveys, but also provides a platform for polling, tablet-based mobile research, and data visualization.

Gravity Forms

Gravity Forms is the Easiest Tool to Create Advanced Forms for Your WordPressPowered Website.