JWT Lens vs Schemely

JWT Lens is a fast, private JSON Web Token decoder and verifier for developers — a Safari extension that works entirely on your device. Tap the toolbar icon, paste a token (or grab the text you've selected on the page), and instantly see: • Pretty-printed, color-coded Header and Payload • Human-readable timestamps — exp, iat and nbf shown in your local time with relative phrasing ("expires in 59 minutes") • An at-a-glance expiry badge: valid, expired, or not yet valid • Plain-English descriptions of standard claims (iss, sub, aud, and more) Need to check a signature? JWT Lens verifies HS256/384/512, RS256/384/512, PS256/384/512 and ES256/384/512 using a secret or PEM public key you provide — all computed locally with the system's WebCrypto, never sent anywhere. Privacy by design: • No network requests — ever • No analytics, no tracking, no accounts • Nothing is stored: tokens and keys live only in the popup while you use it Whether you're debugging OAuth / OIDC flows, inspecting a bearer token, or learning how JWTs work, JWT Lens keeps it quick, clear, and completely on-device. Universal app: works in Safari on macOS, iOS and iPadOS.

Schemely is a link tester for iOS developers and QA. Take any URL, generate a tappable link, and actually tap it to see how a URL scheme or Universal Link behaves — the reliable way to reproduce real-world taps. Why tapping matters Universal Links behave differently depending on how they are opened. Schemely reproduces the real paths: • External — hands the URL to the system (opens the target app, or Safari). • Web tap — renders a real anchor in a web page and taps it, the most reliable way to trigger a Universal Link. Features • AASA Inspector — fetch a domain's apple-app-site-association and check whether a URL is a Universal Link, and which applinks rule it matches. • Result diagnostics — when a link doesn't open, see why and what to check next. • Instant URL kind detection: web URL, custom scheme, or malformed. Unsafe schemes (javascript/data) are blocked. • Clear result feedback: opened, no handler, opened from an anchor tap, or not a Universal Link. • A QR code for every link — scan to open and verify on another device. • History and favorites, stored entirely on your device. • Share from any app — send a URL to Schemely via the share sheet to verify it. • Copy as a rich link or a plain URL. • English and Japanese. Privacy Schemely collects no data. Everything stays on your device.