We respect your privacy
DevToolkit processes everything in your browser. No data leaves your device — ever.
Introduction
DevToolkit by trahoangdev ("we") is committed to protecting your privacy. This policy describes how we collect, use, and protect information when you use our website at trahoangdev.tech.
Data We Collect
2.1. Data you enter into tools
Not collected. All tools on DevToolkit run 100% in your browser (client-side). Data you enter — including JSON, JWT tokens, images, invoices, CVs — is never sent to our server.
2.2. Data stored in your browser
We use localStorage to store:
- Recently used tools list
- Favorite tools list
- Theme preferences (light/dark)
This data is stored only on your device and can be deleted at any time by clearing your browser data.
2.3. Analytics data
We may use analytics tools (such as Plausible or PostHog) to collect anonymous visit data, including: pages viewed, visit time, device type. This data does not contain personal information and IPs are anonymized.
How We Use Data
- Improve user experience
- Identify popular tools to prioritize development
- Detect and fix technical issues
Data Sharing
We do not sell, rent, or share any of your data with third parties, except when required by law.
Cookies
DevToolkit uses minimal cookies (only to save theme preferences). We do not use advertising tracking cookies.
Security
The website is protected with HTTPS. Since data is processed 100% in the browser, the risk of data leakage from the server side is virtually zero.
Your Rights
- Delete localStorage data at any time via browser settings
- Block cookies and analytics scripts via browser or extensions
- Contact us if you have privacy questions
Contact
If you have questions about this policy, please contact us via email: contact@trahoangdev.tech