Privacy Policy
Last Updated: March 31, 2026
At StackFlow Tools, we take your privacy seriously. This Privacy Policy explains how we collect, use, and protect your information when you use our free online tools and services.
Information We Collect
When You Use Our Tools
We process files you upload — images, documents, and other files — temporarily to provide our conversion and processing services. These files are processed entirely in your browser and are never sent to our servers. We do not store, save, or review the content of your files.
Automatically Collected Information
When you visit StackFlow Tools, we automatically collect certain technical information to operate and improve the site. This includes:
- Browser type and version
- Operating system
- IP address (used for security and analytics purposes)
- Pages visited and time spent on the site
- Referring website addresses
- Device type and screen size
Cookies and Similar Technologies
We use cookies and similar tracking technologies to enhance your browsing experience and to understand how our site is being used. The types of cookies we use are explained in detail in the Cookie Policy section below.
Third-Party Services
We use the following third-party services on this site, each of which may collect certain information about your visit:
Used to understand how visitors use our site. Collects anonymised usage data.
Used to display advertisements. May use cookies to serve personalised ads.
Used for security, performance optimisation, and DDoS protection.
How We Use Your Information
We use the information we collect for the following purposes:
- Providing our tools — to operate and maintain our image, file, and other conversion tools
- Improving our services — to understand which tools are used most and how to improve them
- Analytics — to analyse site usage, traffic patterns, and trends
- Advertising — to display relevant advertisements through Google AdSense, which helps us keep all tools free
- Security — to detect and prevent fraud, abuse, and security threats
- Legal compliance — to comply with applicable laws and regulations
We do not sell your personal information to third parties. We do not use your data for any purpose beyond what is described in this policy.
File Processing & Storage
Browser-Based Processing
The most important thing to understand about StackFlow Tools is that all file processing happens entirely inside your browser. When you use our image compressor, background remover, format converter, or any other tool, your files are processed using JavaScript running locally on your device.
Your files are never uploaded to our servers. They never leave your device. Once you close the browser tab or navigate away, the files are gone — we have no access to them at any point.
Your file is loaded into browser memory, processed using JavaScript, and the result is made available for download — all on your device.
Your file is never sent to a server, never stored in a database, never reviewed by any person, and never accessible after you close the tab.
No Content Review
We do not access, review, or use the content of any files you process through our tools for any purpose other than providing the service you requested. We have no technical ability to access these files because they never reach our infrastructure.
Third-Party Advertising
Google AdSense
StackFlow Tools displays advertisements through Google AdSense. These advertisements help us cover our operating costs and keep all tools on this site completely free for users.
Google AdSense may use cookies and web beacons to serve advertisements based on your prior visits to this website and other websites on the internet. This is known as interest-based or personalised advertising.
Opting Out of Personalised Ads
You can opt out of Google's use of cookies for personalised advertising by visiting Google's Ads Settings. You can also opt out of third-party vendor cookies for personalised advertising by visiting aboutads.info.
For more information about how Google uses data when you use our site, visit: policies.google.com/technologies/partner-sites
Your Privacy Rights
You have the following rights with respect to your personal information:
- Right to access — You can request a copy of the personal information we hold about you
- Right to rectification — You can request correction of any inaccurate information
- Right to erasure — You can request deletion of your personal information
- Right to opt out — You can opt out of marketing communications at any time
- Right to manage cookies — You can disable cookies through your browser settings
If you are located in the European Union, you have additional rights under the General Data Protection Regulation (GDPR), including the right to data portability and the right to lodge a complaint with your local data protection supervisory authority.
If you are a California resident, you have the right to know what personal information is collected about you, the right to request deletion, and the right to opt out of the sale of personal information. We do not sell personal information.
To exercise any of these rights, please contact us using the information provided in the Contact section of this policy.
Children's Privacy
Our services are not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and you believe your child has provided us with personal information, please contact us immediately at support@stackflowtools.com and we will take steps to remove that information.
If you are between 13 and 18 years of age, please ensure you have your parent or guardian's permission before using our services.
Data Security
We implement appropriate technical and organisational security measures to protect the information we collect against unauthorised access, alteration, disclosure, or destruction. These measures include:
- HTTPS encryption for all data transmitted between your browser and our site
- Cloudflare security and DDoS protection
- Regular security monitoring and updates
- Minimal data collection — we only collect what is genuinely necessary
However, no method of transmission over the internet is 100% secure. While we use commercially reasonable means to protect your information, we cannot guarantee its absolute security.
Cookie Policy
Cookies are small text files placed on your device when you visit a website. We use the following types of cookies:
Managing Your Cookies
You can control and manage cookies through your browser settings. Instructions for the most common browsers:
- Chrome — Settings → Privacy and Security → Cookies and other site data
- Firefox — Settings → Privacy & Security → Cookies and Site Data
- Safari — Preferences → Privacy → Manage Website Data
- Edge — Settings → Site permissions → Cookies and site data
Please note that disabling certain cookies may affect the functionality of this website and some tools may not work correctly.
Google AdSense Disclosure
This site participates in Google AdSense, an advertising programme run by Google LLC. Google AdSense uses cookies to serve advertisements to visitors of this site.
Google's advertising partners, including Google itself, may use cookies to serve advertisements based on your prior visits to this website or other websites. This allows advertisers to show you ads that may be relevant to your interests.
Google's use of advertising cookies enables it and its partners to serve advertisements based on your visit to this site and other sites on the internet. To opt out of personalised advertising, visit Google Ads Settings.
For more information about how Google uses data collected from sites and apps that use Google services, please visit: How Google uses data from sites or apps that use our services.
Advertising revenue from Google AdSense is what allows us to keep all tools on StackFlow Tools completely free. We appreciate your understanding.
Changes to This Policy
We may update this Privacy Policy from time to time to reflect changes in our practices, technology, legal requirements, or other factors. When we make changes, we will update the "Last Updated" date at the top of this page.
We encourage you to review this Privacy Policy periodically to stay informed about how we protect your information. Your continued use of StackFlow Tools after any changes to this policy constitutes your acceptance of the updated policy.
For significant changes that materially affect your rights, we will make reasonable efforts to notify you — for example, by posting a prominent notice on our website.
Contact Us
If you have any questions, concerns, or requests regarding this Privacy Policy or how we handle your personal information, please do not hesitate to get in touch. We will respond to all enquiries within 5 business days.
This Privacy Policy is effective as of March 31, 2026.