Search DevTools

Jump to any tool or page

HAR Analyzer

Analyze HTTP Archive (HAR) files to visualize API performance and identify bottlenecks.

Upload HAR File

Drag and drop your HAR file here, or click to browse.
(Open DevTools -> Network -> Export HAR)

Data Transformation

About HAR Analyzer

Upload HTTP Archive files to inspect request timing, status codes, domains, transfer sizes, and web performance bottlenecks. DevTools provides focused browser-based developer utilities so you can validate inputs, inspect payloads, copy results, and move between related utilities without installing local dependencies or configuring heavy toolchains.

Related Data Transformation tools

JSON FormatterImage to JSONPII RedactorSheet to JSONJSON to CSV/XLSX

Frequently asked questions

What is HAR Analyzer?
HAR Analyzer is a free online data transformation tool. Upload HTTP Archive files to inspect request timing, status codes, domains, transfer sizes, and web performance bottlenecks.
Is HAR Analyzer free to use?
Yes. HAR Analyzer is 100% free in your browser with no required sign-up, rate limits, or paywalls.
Who is HAR Analyzer useful for?
HAR Analyzer is built for developers, testers, technical writers, product engineers, students, and DevOps teams who need reliable, fast browser utilities for everyday development work.
Is data processed securely in the browser?
Yes. All core formatting, encoding, generation, and inspection operations happen locally in your browser client sandbox without sending confidential payloads to external servers.