HelvetiKit

HelvetiKit is a clean, fast, on‑device toolbox for everyday development tasks. No web round‑trips, no clutter — just the utilities you reach for all the time, in one place.

What you can do

• QR Tools
– Generate high‑quality QR codes from any text or URL
– Scan with the camera or import photos to decode existing codes
– Save generated QR images to your Photos

• Color
– Convert between HEX ⇄ RGB ⇄ HSL
– Pick colors with the system color picker and copy code snippets (SwiftUI/UIColor)

• JSON
– Pretty‑print, minify, validate
– Sort keys, handle fragments, and even normalize curly quotes

• JWT Decode
– Safely decode header/payload (Base64URL)
– Pretty‑printed JSON when available

• Text Case
– camelCase, PascalCase, UPPERCASE, lowercase

• UUID
– Generate v4 UUIDs in bulk

• Hash
– MD5, SHA‑1/256/512 from any input

• Base64 / URL Encode
– Encode/Decode with sensible defaults

• Timestamp
– Convert Unix timestamps ⇄ Date (ms supported)

• Regex
– Test and replace with instant feedback

Designed for speed and privacy

• On‑device: Your input stays on your device; nothing is uploaded.
• Thoughtful UI: Compact layout, keyboard‑friendly editing, copy helpers.
• iPhone + iPad: Landscape support and adaptive layouts.
• Localization: English and Simplified Chinese.

Go Pro (optional)

Unlock unlimited runs when you need heavy use. HelvetiKit remains fully usable for quick tasks in the free tier.

We’re actively improving HelvetiKit — if there’s a converter or utility you’d love to see, let us know!