four offline toolsfull corpusno network calls from the toolsCase studyPortfolio
Four screening tools built on a single dated OpenSanctions snapshot. Each one opens as a
self-contained page, runs entirely in your browser, and answers a real question with real data — no server,
no API call, nothing typed here ever leaves the machine (the site loads analytics only with your consent). That is the point rather than a constraint:
screening work is often done where the network is unavailable, untrusted, or where the query itself is the
sensitive part, and a tool that has to phone an API is no tool at all in those conditions.
These are the working tools, not demonstrations. They carry the complete
corpus — all 308,597 sanctions and crime entities (73,026 of them sanctions-listed, the
rest criminal, warrant and debarment records), all 12,113 relationship records and all
2,347 vessels and aircraft from the 2 August 2026 snapshot. Sentinel Screen downloads a 19 MB compressed
core pack (58 MB once unpacked in the browser, so allow 20–40 seconds) and a further 2.7 MB of listing
detail in the background; the other three carry their own smaller packs — 2.2 MB, 0.24 MB and
0.05 MB — about 25 MB compressed for the suite. Once a tool and its pack have
loaded, the machine can go off the network and that tool keeps answering. The only component held back
is the 771,755-record PEP overlay, which is a 141 MB pack that cannot be published here; it runs in the
local build and every tool says so rather than hiding it.