Blobwise

Paste any opaque technical fragment — a JWT, a base64 blob, multi-layer URL-encoded JSON, an OAuth error, a certificate, a messy log — and Blobwise identifies it, walks the full decode chain, and explains what it actually means. Entirely on your Mac. Nothing ever leaves your machine. DETERMINISTIC CORE — FREE FOREVER • Auto-detects JWTs, base64, URL encoding, hex, JSON, PEM certificates, UUIDs, timestamps and more • Recursive decode chain peels nested encodings layer by layer • Full single-blob decoding stays free, forever PRO — ONE-TIME PURCHASE • On-device AI explanations: every token, claim, error and certificate explained in plain English • Scan whole logs: find and decode every embedded artifact in a messy log or agent dump at once • Deep history, save & export • Global shortcut: summon Blobwise from anywhere with one key PRIVATE BY ARCHITECTURE • 100% offline — no network calls, no account, no telemetry • Your tokens and logs never leave your Mac • One-time purchase, free updates, no subscription