Everyday tools

Convert documents, data, spreadsheets and images. Files are processed for the request and not kept.

Turn brokerage, bank and crypto exports into a reconciled review queue for your preparer.

FeedCheck compares two supplier price and stock CSV files, with a field guide. The site also carries Proscenium's release notes and the extension privacy and license terms.

Cookieless website analytics: traffic, sources, goals and realtime visitors across your sites.

A command-line validator and conservative fixer for Google Merchant Center product feeds.

A local webhook reliability lab: response sequences, synthetic events, redacted payloads and loopback replay.

Maintenance notice, 9 October 2026: version 0.1.1 includes a TLS dependency affected by a published advisory. A rebuilt release is pending; no patched binary is currently available. Security notice