HAR Evidence Desk
Inspect HAR requests, compare two captures and build a reviewed support package with selected requests, redaction evidence and real HAR output.
How we build a check
This workbench processes supported inputs locally. We test calculations, file structure and generated artifacts using independent readers or known fixtures where available. The example runs the same processing path as a supplied input; it does not stand in for checking your own result.
Editorial responsibility
KitForma maintains this tool and its guides. The source notes on the tool page link to the supporting documentation. We do not claim affiliation with the referenced hardware manufacturers or platforms. Review date: 2026-10-18.
Limits and updates
Two UTF-8 HAR 1.2 files, each at most 20 MiB and 5,000 requests · 32 JSON nesting levels · 250,000 JSON values · 2,000 fields per header/query/cookie list · 60-second worker limit. JSON-shape body preview is limited to 1 MiB, 10,000 values and 20 levels; other body content is removed. If a specification changes or a result appears incorrect, send the relevant source URL and a non-sensitive reproduction to kitforma@outlook.com.
Open-source components
The tools use self-hosted open-source components appropriate to each format, including PDF.js, pdf-lib, fflate, SheetJS, MediaInfo by MediaArea.net SARL and others. Component versions and licenses. MediaInfo license · fflate license.