Groups supplied billable time by client and project, calculates charges from each entry rate, and rounds each entry before totaling. Excludes nonbillable entries, tax and expenses. Produces a draft worksheet without sending an invoice. Uses explicitly supplied structured inputs. Server computations are transient; the standalone website computes locally in your browser. Review the output before exporting it. No persistent account records, external source retrieval, sending, transactions or paid model calls. CSV/JSON review and export are available on the standalone website. MCP requests are capped at 128 KiB and computed responses at 256 KiB; individual field and record limits also apply.