Privacy policy

Last updated: September 19, 2019

Streamlit doesn’t — and never will — see or store any of the information that you put into your Streamlit app. That’s all yours. We do look at summary statistics about Streamlit feature usage, in order to improve Streamlit. You can easily turn off summary statistics by changing your config file to set browser.gatherUsageStats = false.

The data we are talking about below is either data you provided directly to us (for example by posting on the Streamlit forum), information about usage of our Streamlit software (the “Software”), or analytics collected when you visited one of our forums or sites. This Policy explains our information practices, how we collect, use, share, and protect your Personal Information, and the choices you have.

Capitalized words used throughout this Privacy Policy but not defined, will have meanings ascribed to those terms in the Definitions section below or in our Terms of Use (the “Terms”).

1. Scope

This Privacy Policy applies to Personal Information Processed (each, as defined in definitions section below) by Streamlit, Inc. and its operating divisions, subsidiaries, and affiliates (“Streamlit”, “we” or “us”) in our business, including on our websites (each a “Site”), forums, blogs, and other online or offline offerings (collectively, the “Support Services”) and in connection with use of our Software. All persons Processing Personal Information for us are expected to comply with this Privacy Policy.

2. What personal information do we collect?

2.1. Account creation

If you create an account by registering with the Support Services (“Account”), we’ll collect certain Personal Information about you, such as your name and email address.

2.2. Communications with us

We may collect Personal Information from you such as email address, phone number, or mailing address when you request information about or show interest in our Support Services, register for our newsletter, request customer or technical support, or otherwise communicate with us. For example, when you show interest in accessing our Support Services, we will collect your Personal Information such as your name and email, so that we can send you a code and invite you to use the Services. When you log into the Service, we will ask you to enter the code that we had sent you via email, to verify your identity and for fraud prevention purposes.

2.3. Data collected via our support services

We will collect any and all information and data files (including any Personal Information that you choose to include when using our Support Services), provided by you to the Support Services.

2.4. Security credentials data

We may collect user IDs, passwords, password hints, and similar security information required for authentication and access to our users’ accounts.

2.5. Surveys

We may contact you to participate in surveys. If you decide to participate, we may ask you for certain information which may include Personal Information.

2.6. Posting

We may offer forums, blogs, or social media pages. Any content you provide on these channels will be considered “public” and is not subject to privacy protections. So please use discretion when posting anything on such platforms.

2.7. Location Information

When you use our Support Services, we may collect and store information about your location by converting your IP address into a rough geo-location We may use location information to improve and personalize our Support Services for you.

2.8. Automatic Data Collection

We may collect certain information automatically when you use the Support Services. This information may include your Internet protocol (IP) address, user settings, IMEI, cookie identifiers, mobile carrier, mobile advertising and other unique identifiers, details about your browser, operating system or device, location information, Internet service provider, pages that you visit before, during and after using the Support Services, information about the links you click, and other information about how you use the Support Services. Information we collect may be associated with accounts and other devices. We also automatically collect some information regarding your use of the Support Services by placing cookies and other technologies on our Site. For more information on Cookies, please see Section 5

2.9. Usage Data Collection

We may monitor your use of the Software and usage data (including linking you to your usage data), and compile information related to such use, including to compile statistical and performance information related to the operation and use of the Software (”Usage Data”). As between Streamlit and you, all right, title and interest in the Usage Data and all intellectual property rights therein, belong to and are retained solely by us, and we may use such Usage Data as we deem fit, including as required by applicable law or regulation and for the purposes of data gathering, analysis, Software and Support Services enhancement and improvement, and marketing.

3. How do we use your information?

In connection with your use of the Support Services, you agree not to do any of the following:

3.1. To provide services, and other information requested including to:

  • provide Support Services and communicate with you;
  • manage your information and Accounts;
  • respond to questions, comments, and other requests and provide personalized support;
  • implement features, changes, bug fixes, and other purposes to improve the Support Services
  • provide access to certain areas, functionalities, and features of our Support Services;
  • answer requests for customer or technical support, and troubleshoot problems.

3.2. For administrative purposes including to:

  • measure interest and engagement in our Site and Support Services;
  • conduct research and development;
  • create Usage Data to improve our Support Services and other uses set forth in Section 2.9 above;
  • improve our products and Support Services;
  • develop new products and Support Services;
  • ensure internal quality control;
  • verify Individual identity and for fraud prevention;
  • communicate with you about your Account, activities on our Site and Support Services and policy changes;
  • process your financial information and other payment methods for products or Support Services purchased (including through our third party payment processor);
  • prevent potentially prohibited or illegal activities;
  • enforce our Terms, and send you notices and alerts;
  • network and information security;
  • comply with the law;
  • any other legitimate purpose.

3.3. To market our products and services

We may use Personal Information to provide you with materials about offers, products, and Support Services that may be of interest to you, including:

  • To tailor content, advertisements, and offers;
  • To notify you about offers, products, and services that may be of interest to you;
  • For direct marketing and research (including marketing research);
  • Other purposes disclosed to you, or that you consent to, when you provide Personal Information.

You may contact us at any time to opt out of the use of your Personal Information for marketing purposes as described below.

3.4. De-identified and aggregated information use

We may use Personal Information and other information about you to create de-identified and aggregated information, such as de-identified demographic information, de-identified location information, information about the computer or device from which you access our Site and Support Services, or other analyses we create. De-identified or aggregated information is not Personal Information, and we may use such information in a number of ways, including research, internal analysis, analytics, marketing, and any other legally permissible purposes.

4. With whom do we share your information?

4.1. We use vendors and service providers

We may share your information with our vendors and service providers. For example, we may share your information with providers of IT, web hosting, and related services, or with our third party payment processors, and other service providers that help us with the provision of the Site and Support Services. However, we will share your Personal Information with such vendors and service providers only for the purpose of receiving services from them in connection with the Support Services.

4.2. Business partners

We may provide Personal Information to our business partners with whom we jointly offer products or services. In such cases, our business partner’s name will appear along with ours.

4.3. Sharing content with friends or colleagues

We may allow you to forward or share certain content with a friend or colleague, such as an email inviting your friend and/or colleague to use our Support Services or view the report created by our Support Services. Email addresses that you may provide for a friend or colleague will be used to send your friend or colleague the content or link you request, but will not be collected or otherwise used by Streamlit or any other third parties for any other purpose.

4.4. Disclosures to protect us or others

We may access, preserve, and disclose your Personal Information and other Account information, and content if we believe doing so is required or appropriate to: (i) comply with law enforcement or national security requests and legal process, such as a court order or subpoena; (ii) respond to your requests; (iii) protect your, our or others’ rights, property, or safety; (iv) to enforce our policies or contracts; (v) when we believe disclosure is necessary or appropriate to prevent physical harm or financial loss or in connection with an investigation or prosecution of suspected or actual illegal activity; or (vi) if we, in good faith, believe that disclosure is otherwise necessary or advisable.

4.5. Merger, sale, or other asset transfers

If we are involved in a merger, acquisition, financing due diligence, reorganization, bankruptcy, receivership, purchase or sale of assets, or transition of service to another provider, then your information may be sold or transferred as part of such a transaction as permitted by law and/or contract.

5. Cookies, pixel tags/web beacons, and analytics information

We, as well as third parties that provide content, advertising, or other functionality on the Support Services, may use cookies, pixel tags, local storage, and other technologies (“Technologies”) to automatically collect information through the Support Services. Technologies are essentially small data files placed on your computer, tablet, mobile phone, or other devices that allow us to record certain pieces of information whenever you visit or interact with our Site and Support Services.

5.1. Cookies

Cookies are small text files placed in visitors’ computer browsers to store their preferences. Most browsers allow you to block and delete cookies. However, if you do that, the Support Services may not work properly.

5.2. Pixel tags/Web beacons

A pixel tag (also known as a web beacon) is a piece of code embedded on the Site that collects information about users’ engagement on that web page. The use of a pixel allows us to record, for example, that a user has visited a particular web page or clicked on a particular advertisement.

5.3. Analytics

We may also use various analytics service providers including, Google  to collect information regarding visitor behavior and visitor demographics on our Site and Support Services. For more information about Google Analytics, please visit

You can opt out of collection and Processing of data by these individual analytics services by accessing the following links: (i) for opting out of collection by Google, you can use the following link: In addition, you can opt out of such collection by any of these services, by accessing a common link provided under Section 8 (Your Choices- Cookies and Interest-Based Advertising).

We use such Technologies for these purposes:

Operationally necessary.
This includes Technologies that allow you access to our Site, Support Services, and tools that are required to identify irregular site behavior, prevent fraudulent activity and improve security or that allow you to make use of our functions such as saved search, or similar functions;

Performance related.
We may use Technologies to assess the performance of our Support Services, including as part of our analytic practices to help us understand how our visitors use the Support Services, and so we can improve our Support Services;

Functionality related.
We may use Technologies that allow us to offer you enhanced functionality when accessing or using our Site and Support Services. This may include identifying you when you sign into our Site or Support Services or keeping track of your specified preferences, interests, or past items viewed;

6. Third party websites, social media platforms and software development kits

The Support Services may contain links to other websites and other websites may reference or link to our Site or other Support Services. We do not control such third party websites or resources. So please read the privacy policies of each such website before you provide any information on it. We may use third party APIs and software development kits (“SDKs”) as part of the functionality of our Services. APIs and SDKs may allow third parties including advertising partners to collect your Personal Information to provide content that is more relevant to you. For more information about our use of APIs and SDKs, please contact us as set forth below.

7. International data transfers

All information Processed by us may be transferred, Processed, and stored anywhere in the world- such as, the United States or other countries. Personal Information may be stored in the cloud, on our servers, on the servers of our affiliates or the servers of our service providers. Accordingly, Your Personal Information may be transferred to, and maintained on, computers located outside of your state, province, country or other governmental jurisdiction where the privacy laws may not be as protective as those in your jurisdiction.

8. Your choices

8.1. General

You may opt out of certain uses of your Personal Information, or even withdraw your previously provided consent at any time and prevent further Processing by contacting us as described below. Please note, however, that the opt out does not apply to, and we may still collect and use, any non-Personal Information regarding your activities on our Site, Support Services and/or information from the advertisements on third party websites for other legal purposes as described above.

8.2. Email communications

We may periodically send you free newsletters and e-mails that directly promote our Support Services. When you receive such promotional communications from us, you will have the opportunity to use the unsubscribe link found at the bottom of the email to opt out of receiving future emails. Note that you will continue to receive transaction-related emails regarding Services you have requested, and you will not be able to opt out of those communications (e.g., communications regarding the Services, your Account, or updates to our Terms or this Privacy Policy).

8.3. “Do Not Track”

Do Not Track (“DNT”) is a privacy preference that users can set in certain web browsers. Sorry- we do not respond to or honor DNT signals or similar mechanisms transmitted by web browsers.

8.4. Cookies and Interest-Based Advertising

You may stop or restrict the placement of Technologies on your device or remove them by adjusting your preferences as your browser or device permits. You may opt out of receiving targeted ads from data partners and other advertising partners that participate in self-regulatory programs via the following links:,,, and Please note you must separately opt out in each browser and on each device. Advertisements on third party websites that contain the AdChoices link may have been directed to you based on information collected by advertising partners over time and across websites. These advertisements provide a mechanism to opt out of the advertising partners’ use of this information for interest-based advertising purposes.

9. Rights of access, rectification, erasure and restriction

In accordance with applicable law, you may have the right to: (i) request confirmation of whether we are processing your Personal Information; (ii) obtain access to or a copy of your Personal Information; (iii) receive an electronic copy of Personal Information that you have provided to us, or ask us to send that information to another entity (the “right of data portability”); (iv) restrict our uses of your Personal Information; (v) seek correction or amendment of inaccurate, untrue, incomplete, or improperly Processed Personal Information; and (vi) request erasure of Personal Information held about you by Streamlit, subject to certain exceptions prescribed by law. If you would like to exercise any of these rights, please contact us as set forth below.

We will process such requests in accordance with applicable laws. To protect your privacy, Streamlit will take steps to verify your identity before fulfilling your request.

10. Data retention

Streamlit retains the Personal Information we receive as described in this Privacy Policy for as long as you use our Support Services or as necessary to fulfill the purpose(s) for which it was collected.

11. Security of your information

We take steps to ensure that your information is treated securely and in accordance with this Privacy Policy. Unfortunately, the Internet cannot be guaranteed to be 100% secure, and we cannot ensure or warrant the security of any information you provide to us. To the fullest extent permitted by applicable law, we disclaim liability for unintentional disclosure. We may communicate with you electronically regarding security, privacy, and administrative issues relating to your use of the Support Services. If we learn of a security system’s breach, we’ll attempt to notify you electronically by posting a notice on the Support Services, by mail or e-mail.

12. Children’s information

The Site and Support Services are not directed to children under 13 (or other age as required by local law), and we do not knowingly collect Personal Information from children. If you learn that your child has provided us with Personal Information without your consent, you may contact us as set forth below, and we’ll promptly take steps to delete such information and terminate the child’s account.

13. California privacy rights

California law permits users who are California residents to request and obtain from us once a year, free of charge, a list of the third parties to whom we have disclosed their Personal Information (if any) for their direct marketing purposes in the prior calendar year, as well as the type of Personal Information disclosed to those parties. Except as otherwise provided in this Privacy Policy, Streamlit does not share Personal Information with third parties for their own marketing purposes.

14. Supervisory authority

If you are located in the European Economic Area, you have the right to lodge a complaint with a supervisory authority if you believe our Processing of your Personal Information violates applicable law.

15. Changes to our privacy policy

We may revise this Privacy Policy from time to time in our sole discretion. If there are any material changes to this Privacy Policy, we will notify you as required by applicable law, by posting the updated Privacy Policy on our Support Services or other communication to you, and updating the “Effective Date” above. You understand that the new Privacy Policy will apply to you if you continue to use the Support Services.

16. Contact us

If you have any questions about our privacy practices or this Privacy Policy, please contact us at:

17. Definitions

17.1. “Personal Information” any information relating to an identified or identifiable natural person.

17.2. “Process” or “Processing”

...means any operation which is performed upon Personal Information, whether or not by automatic means, such as collection, recording, organization, structuring, storage, adaptation or alteration, retrieval, consultation, use, disclosure by transmission, dissemination or otherwise making available, alignment or combination, restriction, erasure, or destruction.