Keep your forms spam-free with CAPTCHA

Keep your forms spam-free with CAPTCHA

Is your online form getting loads of unwanted responses? Tired of spam ruining your valuable form data? CAPTCHA is the solution you are looking for.

CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a simple yet effective security measure that helps protect your online form from spam and automated submissions. Bots disrupt the data collection process by flooding the form with multiple spam responses. Placing an CAPTCHA prevents these unwanted responses by using simple tests to distinguish between humans and bots. Zoho Forms offers three different types of captcha to keep spam responses at bay. They are:

  • Zoho Forms CAPTCHA

  • Google reCAPTCHA v2 (I'm not a robot)

  • Google reCAPTCHA v2 (invisible reCAPTCHA badge)

 

Zoho Forms CAPTCHA - Contains distorted numbers and letters that the user must type correctly to submit the form.

Google reCAPTCHA v2 (I'm not a robot) - Users are presented with a checkbox labeled "I'm not a robot". It validates by analyzing the underlying mouse movement, browser history, and typing pattern to determine the likelihood of a bot. If the system suspects a bot, additional challenges like image verification might be presented.

Google reCAPTCHA v2 (Invisible reCAPTCHA badge) - Similar to Google reCAPTCHA v2, but without any explicit checkbox. It validates the user using mouse movements and cookies stored by the browser. If still unable to determine whether the user is a human, it provides tests like image recognition to prevent spam responses.


How to add CAPTCHA?

To add a CAPTCHA to your form,

  1. In your form builder, navigate to Settings.

  2. Under Spam Control, select CAPTCHA.

  3. From the dropdown, select the CAPTCHA version you want to add to your form and configure it.

 Configuring CAPTCHA


When to use CAPTCHA?

High spam volume: If your form is receiving a significant amount of spam, CAPTCHA can be a valuable tool to filter out automated submissions.

Sensitive data: For forms collecting sensitive information (e.g., contact details, financial information), adding CAPTCHA can provide an extra layer of security.

Embedded Forms: Forms placed directly on websites are more vulnerable to spam and require CAPTCHA for added security.


Which CAPTCHA to choose?

  • If you are looking for a straightforward solution that provides security while maintaining a familiar user experience, then opt for Zoho Forms CAPTCHA.

  • If user experience is top priority and you have a low bot traffic risk, the invisible badge can be a smooth option.

  • If clear user feedback and strong bot protection are crucial, the "I'm not a robot" checkbox might be the better choice.

  • Few CAPTCHA can present challenges for users with disabilities. Prioritize accessible CAPTCHA options or explore alternative verification methods to ensure inclusivity.


While CAPTCHA is a valuable tool for combating spam, it's essential to recognize its limitations. No CAPTCHA is entirely foolproof, but they can significantly deter bots.  Carefully consider your form's needs and audience to effectively implement CAPTCHA to protect your data without compromising user satisfaction. For optimal protection, use CAPTCHA with other security measures. 


    • Sticky Posts

    • Easily track referrals with Zoho Forms

      Referral tracking can be a powerful way for businesses to understand where their leads are coming from. With Zoho Forms, tracking the referral sources of your leads is an easy and straightforward process. Here are some tips to help you make the most of
    • 9 Ways to use Zoho Forms this Navratri

      Hello form builders!Navratri is almost here! It is a time for celebration and culture in the Indian community, and organizing such a grand event can be overwhelming. But with the right tools, you can streamline the process and focus on creating unforgettable
    • The secret to collecting data from valid users

      Collecting accurate data is crucial for making informed decisions. Zoho Forms offers two efficient ways to validate user data and ensure that you collect entries exclusively from valid users. Double Opt-in: Double Opt-in is a privacy feature that ensures
    • Storage space in Zoho Forms: The ultimate guide to efficiently managing your data

      Are you using Zoho Forms for data collection? As with any data-intensive application, understanding how storage space is calculated is essential. That's why we've created this guide— to show you everything you need to know about managing storage space
    • Linking primary form submissions to a second form submission

      Let's imagine you have a form that you use to request a minimal amount of data from your users. To collect additional information, you redirect them to another form either automatically or based on a condition. During the course of redirection, you can
    • Recent Topics

    • Merge Tickets Directly from Contact Page in Zoho Desk

      Dear Zoho Desk Support Team, We are writing to request a new feature that would allow users to easily merge tickets directly from the contact page in Zoho Desk. Currently, the only option to merge tickets is from the Tickets list view page, which can
    • Full Hebrew Language Support for Client-Side Zoho Assist Interface

      Dear Zoho Assist Team, We would like to request an enhancement to Zoho Assist's client-side interface to support full Hebrew language customization, including all popups, notifications, and session-related messages. Current Limitation The Join page allows
    • Ability to Set Text Direction for Individual Cells in Zoho Sheet

      Dear Zoho Sheet Team, We hope you are doing well. We would like to request an enhancement in Zoho Sheet that allows users to set the text direction (right-to-left or left-to-right) for individual cells, similar to what is available in Google Sheets. Use
    • Add RTL (Right-to-Left) Text Direction Support Across All Zoho Learn Editing Interfaces

      Hi Zoho Learn Team, Hope you're doing well. We would like to request an important enhancement to Zoho Learn regarding support for right-to-left (RTL) languages such as Hebrew and Arabic. 🔹 Current Issue While the Knowledge Base Article editor provides
    • Add Hebrew Support for Meeting Transcripts Provided by ZIA in Zoho Cliq

      Hi Zoho Cliq Team, Hope you're doing well. We would like to request the addition of Hebrew language support for the Meeting Transcript and Summary feature in Zoho Cliq. Currently the transcript and summary feature is available for recorded meetings and
    • Remote Control Functionality During Screen Sharing in Zoho Cliq

      Hello Zoho Cliq Team, We would like to request the addition of remote control functionality during screen sharing sessions in Zoho Cliq. Currently, while screen sharing in Cliq is very useful, it lacks the ability for another participant to take control
    • Real-Time Screen Annotation During Zoho Cliq Screen Sharing

      Hi Zoho Support Team, Hope you're doing well. We’d like to request the addition of real-time screen annotation tools during screen sharing sessions in Zoho Cliq video calls. 🔍 What We're Looking For: The ability for the presenter—and optionally, other
    • Centralized Organization Information Management in Zoho One

      Dear Zoho One Support, I'm writing to propose a feature that would significantly improve the user experience and streamline data management within Zoho One. Current Challenge: Currently, managing organization information across various Zoho One apps requires
    • Enhance Zoho One Conditional Assignment to Fully Reassign App Settings When Changing Departments

      Hi Zoho Team, We’d like to submit a feature request regarding the current behavior of Zoho One’s conditional assignment logic when moving a user between departments. 🔧 Current Limitation As it stands, Zoho One’s conditional assignment does not remove
    • Add RTL and Hebrew Support for Candidate Portal (and Other Zoho Recruit Portals)

      Dear Zoho Recruit Team, I hope you're doing well. We would like to request the ability to set the Candidate Portal to be Right-to-Left (RTL) and in Hebrew, similar to the existing functionality for the Career Site. Currently, when we set the Career Site
    • Support for Custom Fonts in Zoho Recruit Career Site and Candidate Portal

      Dear Zoho Recruit Team, I hope you're doing well. We would like to request the ability to use custom fonts in the Zoho Recruit Career Site and Candidate Portal. Currently only the default fonts (Roboto, Lato, and Montserrat) are available. While these
    • Add Hebrew & RTL Support to Feedback Widget

      Hello Zoho Desk Team, How are you? We are using Zoho Desk and would like to utilize the Feedback Widget. While Zoho Desk itself supports Hebrew and RTL, the Feedback Widget unfortunately does not. We kindly request that Hebrew and full RTL support be
    • Ability to Filter Alias Mailboxes in Zoho Recruit

      Dear Zoho Recruit Team, I hope you are doing well. We would like to request a feature enhancement regarding the handling of alias mailboxes in Zoho Recruit. Currently, when we connect an alias mailbox (e.g., jobs@domain.com) from our Zoho One account
    • Automatic Department and Employee Sync Between Zoho One and Zoho People

      Dear Zoho Support, I'm writing to propose a valuable feature request that would streamline data management and improve user experience within the Zoho ecosystem: automatic synchronization between departments and employees in Zoho One and Zoho People.
    • Add Attachment Support to Zoho Flow Mailhook / Email Trigger Module

      Dear Zoho Support Team, We hope you are well. We would like to kindly request a feature enhancement for the Mailhook module in Zoho Flow. Currently, the email trigger in Zoho Flow provides access to the message body, subject, from address, and to address,
    • Prefered Bin Missing in android APP

      Andoroid app dosent show preferred bin in the picklist. The workaround support reccomend is to use the computre to create the picklist. it shuld be information to be shown aas basic for the pciker.
    • Open Sans Font in Zoho Books is not Open Sans.

      Font choice in customising PDF Templates is very limited, we cannot upload custom fonts, and to make things worse, the font names are not accurate. I selected Open Sans, and thought the system was bugging, but no, Open Sans is not Open Sans. The real
    • Function #1: Convert an accepted Estimate to Sales Order automatically in Zoho Books

      As you’re aware, Zoho Books provides a default option to have the estimates automatically converted to invoices once your customer accepts them. Many of you wanted a similar option for sales orders, so here’s a workflow that converts accepted estimates
    • Write-Off multiple invoices and tax calculation

      Good evening, I have many invoices which are long overdue and I do not expect them to be paid. I believe I should write them off. I did some tests and I have some questions:  - I cannot find a way to write off several invoices together. How can I do that,
    • Reusable Jira Connection for Multiple Zoho Projects Imports

      Hello Zoho Projects Team, We would like to raise a concern and submit a feature request regarding the Jira → Zoho Projects migration process, specifically around how Jira connections are handled. Current Behavior: When setting up a Jira connection for
    • Zoho invoice doesn't support Arabic language

      I added a clause in the terms & conditions section in Arabic but it doesn't appear when I sent or print it.
    • Recurring Invoice Placeholder Not Updating Billing Period

      Hi, I’m using Zoho Invoice Free and want the billing period to update automatically in recurring invoices. In Item Description I tried: Billing Period: %(m-6)% %(y)% to %(m-1)% %(y)% but even if the invoice date is in 2026, it still shows the period based
    • Work Type - Limitation

      Hello, I'm setting up work types and have noticed, a limitation on the parts area to 10 lines. Can this be increased to 20 or greater? In addition to this, when I attempt to add the work type to a work order, the correct labour hours doesn't flow through.
    • Related list Mobile Device

      Hello, We use an the Zoho creator application to make reports linked to Accounts. On the computer: it's easy to go the Account and see all the created reports in the related list below On iPad/Phone ZOHO CRM APP: we cannot see the reports on those accounts
    • Can't update the company address in zoho invoice

      Dear Sir/Madam, I want to update the company address in Zoho Invoice but failed. It popped out a sentence "Invalid value passed for Website". Please advice how to solve this problem. Thank you.
    • Ensure Consistent Service Delivery with Comprehensive Job Sheets

      We are elated to announce that one of the most requested features is now live: Job Sheets. They are customizable, reusable forms that serve as a checklist for the services that technicians need to carry out and as a tool for data collection. While on
    • Is there a plan to allow for the hierarchical organization of Customers / Companies in Zoho Billing?

      We have a few customers who have organizational structures that we haven't quite found a way to deal with in Zoho Billing. In CRM, these sub-companies (or subsidiaries or whatever you want to call them) all have another CRM account as the parent account.
    • 【Zoho CRM】作業リスト機能リリースのお知らせ

      ユーザーの皆さま、こんにちは。コミュニティチームの藤澤です。 今回は「Zoho CRM アップデート情報」の中から、作業リスト機能リリースのお知らせ情報をご紹介します。 目次 作業リスト機能 概要 機能① 自分の未完了の活動 機能② 処理待ち 機能③ 自分の作業リスト 作業リスト機能 概要 営業チームでは、CRM内に業務やデータが分散しているため、管理が煩雑になりがちです。この断片化は、機会の見逃しや生産性の低下につながります。 作業リスト機能は、タブを横断する業務項目をひとつのカスタマイズ可能なダッシュボードに集約し、業務を効率的に管理できるようにします。
    • Pipeline.Company Name field shows up as numbers! [Bigin Developer Console > Component > URL]

      Hi there, I am setting up to invoke URL to send infromation zoho bigin > zoho forms with company name pre-fill in the form. however when I use : ${Pipelines.Company Name} field it shows up as a string of number instead of words. Help.
    • SalesIQとPageSenseの利用について

      初めての投稿で場違いだったらすいません。 弊社ではSalesIQを運用しているのですが、追加でPageSenseの導入もしたいと現場からの声があります。 両サービスともクッキー同意バナーが必要なサービスなのですが 弊社では同意無しに情報はとりませんという方針なので 2つ入れると2つバナーを出す必要がでてきます・・・ 両サービスを運用されてる方があれば運用状況とか教えてほしいです。 PageSenseについては詳細まで機能を理解してないなかでの質問です。
    • Emails sent through Bigin are not posting in IMAP Sent folder

      I have set up my email to work from within Bigin using IMAP.  I am using IMAP so I can sync my email across multiple devices - phone / laptop / desktop / iPad / etc.  I want all my emails to populate my email client (outlook & iphone email) whether or
    • Parent-Child Tickets using API or Deluge

      Hi Everyone, We are looking at the parent-child ticketing features in Zoho Desk. We want to be able to create a parent ticket at customer level and nest child tickets underneath. The issue we are facing is to be able to automate this. I'm checking the
    • Customer ticket creation via Microsoft Teams

      Hi all, I'm looking to see if someone could point me in the right direction. I'd love to make it so my customers/ end users can make tickets, see responses and respond within microsoft teams. As Admin and an Agent i've installed the zoho assist app within
    • Closing connected ticket after closing WA conversation

      Hi, At the moment, once someone sends a message to our WA number, a corresponding ticket is automatically created. After the question is answered, our support department closes the chat/conversation. However, after that, the connected ticket is still
    • Note sync turn off

      Hi, Is it possible to turn off notes sync between task notes and the parent module? (Account/Deal)
    • Basic Plan Active but Survey Creation Still Limited to 3 Surveys

      I have an active Basic (Monthly) subscription (valid period: Dec 24, 2025 – Jan 24, 2026), but the system still limits survey creation to only 3 surveys, which matches Free plan behavior. The subscription appears active in Portal Information, however
    • Manage control over Microsoft Office 365 integrations with profile-based sync permissions

      Greetings all, Previously, all users in Zoho CRM had access to enable Microsoft integrations (Calendar, Contacts, and Tasks) in their accounts, regardless of their profile type. Users with administrator profiles can now manage profile-based permissions
    • Territory Assignment Issues (Lead to Account + Contact)

      1. Lead → Account & Contact Territory Assignment on Conversion A Lead is automatically assigned one or more territories using a workflow and Lead Assignment Rules. This works as expected, and we are able to assign multiple territories to a Lead automatically.
    • 2025 in Review: Powering Field Services Forward—One Feature at a Time

      As 2025 draws to a close, it’s time to pause and reflect on a year of meaningful progress at Zoho FSM. This year was all about listening closely to our customers and partners, building with purpose, and continuously improving the way field service teams
    • Syncing with Google calendar, Tasks and Events

      Is it possible to sync Zoho CRM calendar, task and events with Google Calendar's tasks and events. With the increasing adoption by many major tool suppliers to sync seamlessly with Google's offerings (for instance I use the excellent Any.do task planning
    • Next Page