无需上传即可分析 HAR
HAR Analyzer Online 可直接在浏览器中检查网络请求、HTTP 状态码、大小、时序、域名和请求详情。
What can you inspect in a HAR file?
A HAR file records browser network activity in a structured JSON format. This analyzer lets you inspect request methods, HTTP status codes, URLs, domains, MIME types, transfer sizes, TTFB, complete request timings, request and response headers, query strings, request bodies and embedded response content when it is present in the file.
Find slow and failed network requests
Use the built-in filters to isolate 4xx and 5xx responses, third-party calls, large resources or requests taking more than one second. The waterfall view helps reveal when requests started and how long they occupied the network timeline.
Private by design
Your HAR file is parsed with JavaScript on your own device. The analyzer does not need to upload the file to a server. HAR files may contain session cookies, authorization headers or private URL parameters, so review sensitive information before sharing a HAR with anyone. Our HAR Sanitizer can remove common sensitive fields.
常见问题
What is a HAR file?
HAR stands for HTTP Archive. It is a JSON-based format used by browsers and developer tools to store network request and response information.
Can I open a HAR file online?
Yes. Choose or drag a .har file into the analyzer above. Parsing happens locally in your browser.
Does this tool upload my HAR file?
No. The main analyzer processes the selected file in your browser and does not require a file upload.
How do I find slow requests?
Open the Performance tab or enable the slow-request filter. Request details include total duration and individual timing phases such as DNS, connect, SSL, wait and receive.