Any token, API error, JWT, certificate, log line, or webhook payload — Sift identifies it, decodes every layer, and explains what it means and what to do next.
No cloud. No API key. Nothing ever leaves your Mac.
macOS 26 (Tahoe) · native (~1 MB) · 7-day trial, no card · on-device AI, local-first by design
Most tools make you guess what the thing is and pick the right converter. Sift recognizes it automatically, peels every layer into a visible decode chain, and — because the deterministic core nails the facts first — adds a short, on-device AI explanation on top.
19 detectors compete by confidence — base64, JWT, gzip, PEM/X.509, plist, hashes, YAML/XML and more. No menus, no guessing.
Double-URL-encoded JSON? gzip-in-base64? Sift recursively unwraps it and shows the full path: url → url → json.
What it means and what to check next — alg:none auth-bypass, expired certs, weak password hashes — facts from the core, prose from on-device AI.
The more code AI writes, the more opaque fragments you have to make sense of.
Decode header/payload, humanize exp, flag expired
tokens and unsigned alg:none.
URL-encoded → base64 → JSON, unwrapped automatically with the chain shown.
invalid_grant & friends —
meaning, common causes, and a debug checklist.
Subject, issuer, validity, SAN, expiry — from a hand-written ASN.1 parser, no Keychain.
bcrypt / argon2 / sha-crypt with work factor, plus bare-digest cracking warnings.
Scan a blob and Sift extracts every embedded artifact, decoding each on its own.
The things you paste — tokens, secrets, production logs — are exactly what cloud tools can't be trusted with. Sift is structurally incapable of leaking them.
Decoding is local. The AI explanation runs on Apple Foundation Models, on-device — no network call, ever.
A deterministic core owns correctness; the model only writes the summary. If it declines, you still get the verified answer.
No account required for inspection. No inspected content is logged, tracked, or sent anywhere. License verification sends only your key — never the content you inspect.
No subscription. No cloud cost. Sift runs locally on your Mac — with a 7-day Pro trial, no card required.
Launch price for early users. Includes all 1.x updates. License verification sends only your license key — never the content you inspect.