Privacy Policy
Last updated: 8 May 2026
Overview
JSONFix.tech is a developer tool for repairing malformed JSON. We are committed to your privacy. This policy explains what little data we collect, why, and how it is used.
What we collect
- Nothing by default. The JSON repair engine runs entirely in your browser. Your JSON data never leaves your device during the repair process.
- AI analysis (optional). When you use the AI-powered tabs (Fixes, Explain, Schema, LLM Scan), the repaired JSON text is sent to our AI provider via an encrypted HTTPS request to generate explanations and insights. Your original broken JSON is never transmitted — only the fixed output.
- No account required. We do not collect names, email addresses, or any personally identifiable information during normal tool use.
How we use your data
- JSON sent to our AI provider is used solely to generate the AI explanation response for your session.
- We do not store, log, or re-use your JSON data for any other purpose.
- We do not sell or share your data with third parties beyond the AI provider listed below.
Third-party services
The AI analysis feature is powered by our AI provider (xAI). When you click an AI analysis tab, the fixed JSON text is transmitted to xAI's API to generate a response.
- Provider: xAI Inc. — x.ai/privacy
- Data transmitted: The repaired JSON text only (not the original broken input, not your IP address, not any account information).
- Purpose: Generate plain-English explanations and schema analysis of your JSON.
- Hosting infrastructure (Vercel): This site is served via Vercel's global CDN. Vercel logs standard HTTP request metadata (IP address, User-Agent, URL path) at the edge for up to 24 hours for security and abuse prevention. This is outside our control. See Vercel's Privacy Policy for details.
If you do not wish to use the AI features, the core repair tool works entirely offline in your browser — simply do not click the AI analysis tabs.
Cookies & local storage
JSONFix.tech uses no tracking cookies and no advertising cookies.
- Theme preference: We store your chosen colour scheme (dark / light) in
localStorageunder the keytheme. This never leaves your device. - No analytics cookies: We do not use Google Analytics or similar tracking services.
- No session cookies: There is no login system, so no session cookies are set.
Because we set no tracking or advertising cookies, no cookie consent banner is required under GDPR or ePrivacy rules.
Data retention
We do not retain your JSON data. Each AI request is stateless — once the response is returned to your browser, the data is not stored on our servers. Your localStorage preference is stored locally on your device and can be cleared at any time through your browser settings.
Your rights
Under GDPR and similar regulations, you have the right to:
- Know what personal data we hold about you (in practice: none).
- Request deletion of any personal data (we hold none).
- Opt out of AI processing by not using the AI analysis feature.
Changes to this policy
We may update this policy as the product evolves. The “Last updated” date at the top of this page will always reflect the most recent revision. Continued use of the service after changes constitutes acceptance of the updated policy.
Verify for yourself
Our client-side claim is verifiable. Open your browser's DevTools (F12 → Network tab), paste broken JSON, and click Auto-Fix — you will see zero outbound network requests during the repair step. Requests to /api/ai are made only when you open an AI analysis tab (Fixes, Explain, Schema, or LLM Scan).
You can also right-click → View Page Source on the tool page to inspect the JavaScript bundle served to your browser.
Contact
Questions or concerns? Email us at hello@synaptexai.com.