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Analyze browser HAR files — sizes, timings, and slowest requests.
Upload a .har file exported from your browser DevTools Network tab and instantly see a breakdown of every request: status, type, size, and timing. Get summary stats — total requests, transferred bytes, load time — spot the slowest calls, and see third-party domains at a glance. Everything is analyzed locally in your browser; nothing is uploaded.
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Send HTTP requests with custom headers, body, and auth — like Postman, in your browser.
Encode and decode Base64 strings instantly.
Load and compare multiple URLs side by side in resizable iframes.