How to create an Anonymous Survey?

Blocksurvey blog author
Written by Wilson Bright
Jul 15, 2025 · 5 mins read

Respondents often hold back honest feedback when they think their answers can be traced back to them. Anonymous surveys remove that concern by cutting the link between a person and their response.

BlockSurvey's Anonymous Survey feature keeps responses private, so people can answer openly. This article covers what anonymous surveys are, why they help, how to create one in BlockSurvey, and where they work best.

What is an Anonymous Survey?

An anonymous survey does not collect personally identifiable information (PII), and responses cannot be linked back to any individual. Even when you collect opinions, feedback, or sensitive data, there is no way to track who gave a specific answer.

What are the benefits of Anonymous Surveys?

  • Encourages Honesty: When people know their answers cannot be traced back to them, they feel safe sharing what they actually think.
  • Reduces Bias: Respondents don't have to worry about giving answers that sound "right" or "acceptable." They can say what they really think without pressure.
  • Increases Response Rates: More people are willing to take a survey when they know their identity won't be revealed.
  • Builds Trust: When organizations assure people that their responses are private, it helps create a sense of trust and comfort.
  • Encourages Open Feedback on Sensitive Topics: People may hesitate to talk about personal experiences, workplace issues, or health concerns if their identity is known. Anonymous surveys help them speak freely.
  • Removes Fear of Judgment or Retaliation: Employees, students, or customers can give honest feedback without worrying about how it might affect their job, grades, or relationship with a company.
  • Leads to More Accurate and Useful Insights: Honest answers mean organizations get real feedback, which helps them make better decisions based on what people truly think.

How to create an Anonymous Survey in BlockSurvey?

Creating an anonymous survey in BlockSurvey is straightforward. Follow these steps to keep your respondents private:

Step 1

Create a new survey and add your survey questions in the Design screen.

Step 2

Go to Settings → Make it Anonymous and toggle it on.

Step 3

The AI checks the question types, questions, and description text in the survey against the anonymity criteria. If any content could identify a respondent, you cannot enable Make it Anonymous until those questions are removed.

Step 4

Once anonymity is confirmed, publish the survey and share it with respondents.

What happens when you enable the Anonymous Mode?

  • No IP addresses, browser details, or device information are collected.
  • Custom data added to the survey URL is not tracked.
  • If respondents access the survey via Tor Browser, Onion Routing turns on automatically, adding an extra layer of encryption that keeps their IP addresses untraceable.

How Do Respondents Know the Survey is Anonymous?

An "Anonymous Seal" appears on the survey-taking screen, showing respondents that no personally identifiable information (PII) is being collected. It confirms that their responses stay private and cannot be traced back to them.

Use Cases for Anonymous Surveys

Anonymous surveys fit any situation where privacy leads to more honest feedback. Some common examples:

  • Mental Health or Health Assessments: People feel more comfortable sharing personal health concerns when they know their identity is protected.
  • Customer Feedback Surveys: Businesses can gather honest opinions about their products or services, which helps them improve without biased responses.
  • Employee Feedback Surveys: Employees can express workplace concerns, share suggestions, or report issues without fearing backlash.
  • School or University Feedback: Students can give genuine feedback on teachers, courses, or campus facilities without worrying about negative consequences.
  • Whistleblower or Ethics Reports: Employees or members of an organization can report unethical behavior, harassment, or policy violations safely and anonymously.
  • Political or Social Opinion Polls: People can express their views on political or social issues without concern for public scrutiny.
  • Market Research Surveys: Companies can get unfiltered consumer opinions, which helps them develop better products and marketing strategies.

Conclusion

Anonymous surveys help you gather honest, unbiased feedback by keeping respondents private. Whether you are collecting employee insights, customer opinions, or sensitive feedback, anonymity leads to more accurate responses and builds trust with your audience.

With BlockSurvey's Anonymous Survey feature, you can create secure, private surveys that encourage open and honest participation. Try anonymous surveys in BlockSurvey today and see how the responses change.

Learn more about our anonymous survey software, see how it compares in confidential vs anonymous surveys, or explore confidential surveys.

How to create an Anonymous Survey? FAQ

What is a truly anonymous survey?

A truly anonymous survey does not log IP addresses, browser details, or device information, avoids email or link-based tracking that could trace a response back to a person, strips metadata from submissions, and encrypts data end-to-end. Surveys that meet all four criteria ensure responses cannot be linked back to any individual.

Is there a free anonymous survey tool?

BlockSurvey offers a 14-day free trial that includes the anonymous survey feature, so you can create and test a fully anonymous survey before choosing a paid plan. During the trial, anonymous surveys still exclude IP addresses, browser data, and other identifying details from every response.

How do you make a completely anonymous survey?

To make a survey completely anonymous, remove any questions that could identify a respondent, avoid embedding tracking links or requiring email addresses, and use a platform that does not log IP addresses or metadata. In BlockSurvey, toggling "Make it Anonymous" in survey settings runs an AI check that flags identifiable questions before the survey can be published, and responses are encrypted end-to-end.

Should feedback surveys be anonymous?

Feedback surveys should be anonymous when the goal is honest, unfiltered input, especially on sensitive subjects like management performance, mental health, or workplace ethics. Anonymity removes the fear of judgment or retaliation, which increases participation rates and produces more candid, accurate responses.

Is SurveyMonkey or any survey tool 100% anonymous?

Whether any survey tool is 100% anonymous depends on specific technical criteria: no IP address logging, no email or link-based tracking, no hidden metadata in responses, and end-to-end encryption of the data. BlockSurvey's anonymous mode is built to meet all four criteria, excluding IP addresses, browser and device details, and personally identifiable information from every response.

Can anonymous surveys be used for sensitive topics?

Yes. Anonymous surveys are well suited to sensitive topics such as mental health assessments, workplace ethics reporting, and political polling, where respondents are more likely to give honest answers when their identity is protected.

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blog author description

Wilson Bright

Wilson Bright is the co-founder of BlockSurvey, an AI-native, privacy-first survey platform designed to help Institutional Researchers uncover deeper, more actionable insights. He believes the future of Institutional Research lies in combining ethical data collection with intelligent automation to make evidence-based decisions faster, fairer, and more transparent.

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