Cookie Converter Pro Max

How to Use This Tool (Step-by-Step)

Converting cookies between JSON and Netscape formats is seamless. Follow this visual guide for accurate results:

1 Input Session Data

Copy your cookie data from your browser developer tools or extension. Paste the content directly into the Left Input Box.

Figure 1: Paste your raw cookie data here.

4 Export & Download

Your clean code is ready in the Right Output Box. Click Copy Result or use Download File to save it.

Figure 2: Successful conversion and download options.

Privacy & Security Architecture

Data privacy is critical when handling session tokens. Unlike many online converters that upload data to a backend server, Trusted Tools Web is engineered for privacy.

Client-Side Processing Technology:

• Zero Data Transfer: Your data never leaves your device. All conversions happen locally within your browser's JavaScript engine.
• Offline Capability: This tool functions 100% offline. You can disconnect your internet after loading the page to verify that no external requests are made.

Supported Formats

Use Cases for Developers

This utility is an essential part of a web developer's toolkit. Common scenarios include:

1. Cross-Browser Testing: Migrate session states between Chrome (JSON) and Firefox/Safari (Netscape) to test application behavior without re-authenticating.
2. API Debugging: Generate valid cookie files for cURL or Postman to test authenticated API endpoints directly from the terminal.
3. Automation Scripts: format cookies for use with Selenium WebDriver or Puppeteer to simulate user sessions in automated testing pipelines.

Integration with cURL & Wget

For DevOps engineers, the Netscape format is a requirement for many CLI tools. For example, wget uses the --load-cookies flag which requires a specifically formatted text file.

This tool bridges the gap between browser data (JSON) and terminal applications, allowing seamless session import for debugging server responses.

Selenium & Automation Support

Automation frameworks like **Selenium WebDriver** often require cookies in a specific JSON structure (array of dictionaries). Legacy data sources, however, might provide Netscape text files.

This converter transforms legacy Netscape files into JSON arrays compatible with `driver.add_cookie()`, streamlining the setup process for test automation suites.

Importance of Cleaning Expired Sessions

Importing expired cookies can cause authentication failures in scripts. Browsers handle this automatically, but raw text files do not.

Our Clean Expired algorithm parses timestamps and removes any entries that are no longer valid. This ensures your exported file contains only active session tokens, reducing debugging time.

Handling 'HttpOnly' & 'Secure' Attributes

The `HttpOnly` flag is a vital security feature protecting cookies from XSS attacks. Standard Netscape files do not have a dedicated column for this.

To maintain security integrity, we follow the convention of prepending #HttpOnly_ to the domain name. This ensures that tools respecting this convention will treat the cookie with the appropriate security level.

API Testing & Environment Migration

Developers often need to verify how their applications behave under different user sessions. Migrating a session from a mobile browser to a desktop environment allows for easier debugging.

By converting mobile session exports (JSON) to Netscape format, developers can import these sessions into desktop testing tools to analyze responsive design behavior and user-specific data rendering.

Troubleshooting Common Errors

If you encounter parsing errors, verify the input integrity. A common issue is "Line Wrapping" where long strings break into new lines.

Ensure your input does not contain raw HTTP headers (e.g., `Cookie: ...`). This tool expects raw JSON objects or standard tab-separated Netscape lines.

GDPR & Data Compliance

For developers operating under GDPR or CCPA regulations, data sovereignty is paramount. Since Trusted Tools Web processes data strictly Client-Side, no user data is transferred to external processors.

This architecture helps maintain compliance with data privacy standards while utilizing external productivity tools.

Frequently Asked Questions

Q: Why do I see an "Invalid Format" error?

Ensure your JSON array starts/ends with brackets []. For Netscape, ensure tabs are used as separators, not spaces.

Q: Does this preserve the 'Secure' flag?

Yes. The converter accurately maps the `secure` boolean between formats, ensuring HTTPS-only cookies remain restricted.

Q: Is this tool suitable for production data?

This tool is designed for development and debugging. We recommend sanitizing sensitive data before use in any third-party environment, even with client-side tools.

Legal Disclaimer

Trusted Tools Web provides this utility strictly for Development, Debugging, and Educational purposes (e.g., API Testing, Browser Automation, and Session Migration).

• Misuse of this tool for unauthorized access, session hijacking, or bypassing security controls is strictly prohibited.
• We do not condone the violation of any third-party Terms of Service.
• Privacy Note: This tool operates 100% Client-Side. No data is stored or transmitted by our servers. Users are solely responsible for their data usage.