Anvil: Developer Tools

Anvil is a pocket-sized toolbox of 17 everyday developer utilities. Every tool processes its input on your device. No account, no ads, no tracking, and no app backend. FORMAT & DECODE • JSON Formatter — beautify, minify, validate • Base64 — encode / decode text • URL — percent-encode / decode • JWT Decoder — inspect header & payload (local only) GENERATE • UUID — batch v4 identifiers • Hash — MD5 / SHA-1 / SHA-256 / SHA-512 • Random String — passwords & tokens • QR Code — share or save CONVERT • Number Base — bin / oct / dec / hex • Unix Time — epoch ↔ human date • Cron — explain expressions • Unicode — text ↔ \u escapes TEXT • Regex Tester — live matches & groups • Text Diff — compare two snippets • Case Converter — camel / snake / kebab … • Text Analyzer — characters, words, lines • List Comparer — intersection, union & diff SMART PASTE Copy something, open Anvil, and it points you to the right tool with your content already filled in. PRIVACY FIRST Tool inputs are processed on-device and are never uploaded. Anvil has no account, ads, analytics, or app backend. Optional Pro purchase and restore use Apple StoreKit. ANVIL PRO — one-time unlock, no subscription • Share Extension — run tools on text shared from any app • Shortcuts & Siri • Clipboard History • Optional Smart Paste auto-open (off by default) One-time purchase, no subscription.