HAR File Parser
Parse HTTP Archive files to inspect network requests, responses, and timings.
What Is a HAR File?
A HAR (HTTP Archive) file is a JSON-formatted log of all network requests made by a web browser during a session. You can export one from Chrome DevTools by opening the Network tab, right-clicking any request, and choosing "Save all as HAR with content". Firefox and Safari have equivalent export options. HAR files are invaluable for debugging API calls, measuring page load performance, diagnosing authentication failures, and sharing network traces with teammates without needing to reproduce issues live. This parser lets you inspect all requests, filter by URL, method, and status code, and expand any entry to see full request/response headers and body content. Everything runs in your browser — HAR files often contain authentication tokens and sensitive data, so nothing is uploaded to any server.
Private & free — this tool runs entirely in your browser.