# PrismKit — Offline developer toolbox

> Offline developer toolbox (iPhone/iPad app by JUAN DE DIOS FRAUSTO RAMIREZ.)

- Source: https://appshunter.io/ios/app/prismkit/id6786781100 (this page in markdown: same URL + `.md`)
- Developer: [JUAN DE DIOS FRAUSTO RAMIREZ](https://appshunter.io/developer/1851837556)
- Category: Developer Tools, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 6 MB
- Languages: American English, European Spanish
- Released: 2026-07-10
- Data updated: 2026-07-24
- User reviews in markdown: https://appshunter.io/ios/app/prismkit/id6786781100/reviews.md

## What is PrismKit?

PrismKit is a developer's Swiss Army knife: a collection of fast tools that run entirely on your iPhone and iPad — offline, with nothing ever sent to a server.

Paste a production token, a private config, or any sensitive data with confidence. Everything is processed locally on your device.

TOOLS INCLUDED

• JSON ↔ YAML — Convert between both formats in either direction.
• JSON ↔ TOON — Convert to and from TOON, the compact format that saves tokens when working with AI models.
• JSON Format — Format, validate, and minify with error detection.
• Base64 — Encode and decode text.
• URL Encode — Encode and decode URL strings.
• JWT Decoder — Inspect the header and payload, see the expiry, and verify the HMAC signature (HS256, HS384, and HS512).
• Hash — Generate SHA-256, SHA-512, and MD5.
• QR Code — Generate and customize QR codes with colors, a logo, and PNG export.
• UUID — Generate unique identifiers in batches.
• Regex Tester — Test regular expressions and see matches and their groups.
• Diff — Compare two versions of text line by line and spot the differences.

BUILT TO BE FAST

• Command palette (⌘K) to jump to any tool in seconds.
• Mark your favorite tools to keep them within reach.
• Copy any result with a tap.
• Optimized for iPhone and iPad, with a two-column layout on larger screens.
• Light, dark, and automatic themes.

PRIVACY FIRST

• 100% offline: no tool needs an internet connection.
• No accounts, no analytics, no ads, no tracking.
• We collect absolutely no data.

Made by developers, for developers.


## Version history (last 1 release)

### 1.0 — 2026-07-10

No release notes.

## More apps by JUAN DE DIOS FRAUSTO RAMIREZ

- [BiteBits](https://appshunter.io/ios/app/bitebits/id6755086684)
- [Hop — SSH Client](https://appshunter.io/ios/app/hop-ssh-client/id6782134608)
- [GlassCode - Code Editor](https://appshunter.io/ios/app/glasscode-code-editor/id6784796142)

All apps by JUAN DE DIOS FRAUSTO RAMIREZ: https://appshunter.io/developer/1851837556

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-24.*