HAR File Analyzer & Privacy Cleaner Online — Redact Cookies & Tokens
Inspect HTTP Archive (.har) waterfall metrics and automatically redact sensitive Authorization headers, Session Cookies, and API keys before sharing with support teams.
Technical Comparison: Browser .HAR Capture vs Sanitized HAR + Performance Audit
File Utilities & Encodings| Specification | Browser .HAR Capture (Source) | Sanitized HAR + Performance Audit (Target) |
|---|---|---|
| Input Specification | Browser .HAR Capture | Sanitized HAR + Performance Audit |
| Execution Environment | Browser FileReader / UTF-8 Text Buffer | 100% Client-Side Vanilla JS Engine |
| Network / Cloud Calls | 0 Requests (Air-Gapped Ready) | 0 Requests (RAM-Only Output) |
| Maximum Privacy Level | Safe for API keys, JWTs, HAR captures & production code | Instant local clipboard or file download |
Browser .HAR Capture to Sanitized HAR + Performance Audit — Before & After Example
/* Input: Browser .HAR Capture */ // Processed 100% locally in your browser RAM // Click "Load Sample" above to inspect a live working example.
/* Output: Sanitized HAR + Performance Audit */ // Zero network calls · Instant execution · Copy or download with one click.
Frequently Asked Questions: Browser .HAR Capture to Sanitized HAR + Performance Audit
Is the HAR Analyzer & Cleaner tool completely client-side? ▾
Yes. All parsing, encoding, and code generation run in your browser tab using pure JavaScript. No payloads, tokens, or files are ever transmitted over the network.
Can I use HAR Analyzer & Cleaner on confidential work files or production secrets? ▾
Absolutely. Because ZeroUpload has no backend database or upload endpoint, confidential HAR captures, JWT tokens, SVG assets, and JSON configs never leave your machine.
Does HAR Analyzer & Cleaner work offline? ▾
Yes. Once the page is loaded in your browser, you can disconnect from the internet and continue converting and downloading files without interruption.
How do I download the result from HAR Analyzer & Cleaner? ▾
Click "Download Converted File" to save the output with the proper file extension, or click "Copy Output" to copy the result directly to your system clipboard.