Any token, API error, JWT, certificate, log line, or webhook payload — Blobwise 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) · free to use · 7-day Pro trial · one-time purchase, no subscription
Most tools make you guess what the thing is and pick the right converter. Blobwise 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? Blobwise 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 Blobwise 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. Blobwise 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.
Free to use. Pro features unlock with a one-time purchase — no subscription, ever.
Try every Pro feature free for 7 days — no card required
Everything you need to know before downloading.
Yes — auto-detect, the full decode chain, and single-blob inspection are free forever. Pro features (AI explanations, history, batch scan, export, global shortcut) unlock with a one-time purchase. You can try every Pro feature free for 7 days, no card required.
Purchases go through Apple. If it's not for you, request a refund at reportaproblem.apple.com within 14 days. You can also email hello@blobwise.com and I'll help.
macOS 26 (Tahoe) or later. Blobwise uses Apple Foundation Models for on-device AI, which requires Tahoe.
Yes — everything runs on-device. Decoding, AI explanations, history, export. No internet connection needed, ever.
Blobwise uses Apple's Foundation Models, which run locally on your Mac — the same models powering Apple Intelligence. Nothing you paste is sent to any server.
Yes. A single purchase covers personal and commercial use. Paste production tokens, internal API errors, or anything else — all stays on your Mac.