---
title: "Dev Tool box - 개발자 도구 - Reviews, Revenue and Downloads in South Korea | Apple App Store"
description: "개발자 도구 10가지를 한 앱에 담았습니다. 노트북을 열지 않고도 JSON 을 정렬하고, URL 을 인코딩하고, JWT 를 뜯어볼 수 있습니다.  - JSON Formatter — JSON 을 보기 좋게 정렬하고 검증합니다. 트리 보기와 검색 지원 - URL Encode/Decode — RFC 3986 기준 인코딩 - Base64 Encode/Decode "
---

# Dev Tool box - 개발자 도구 — South Korea
> JSON, URL, Base64 외 10종

![Dev Tool box App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/c1/e5/6e/c1e56eee-58be-4961-f1af-ff3148c51606/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Seonggon Sim](https://apptail.io/developer/seonggon-sim-iSb)
**Category:** Developer Tools
**Rating:** 5.0/5 (3 ratings)
**Price:** Free
**Bundle ID:** com.gonigon.devtoolbox
**Store:** Apple App Store
**Country:** South Korea
**Version:** 1.0.9 (released 2026-09-15)
**Original Release:** 2025-08-11
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/kr/app/app/id6749840624)
**AppTail Page:** [https://apptail.io/app/dev-tool-box-cAxw/south-korea](https://apptail.io/app/dev-tool-box-cAxw/south-korea)

## Dev Tool box Description
개발자 도구 10가지를 한 앱에 담았습니다. 노트북을 열지 않고도 JSON 을 정렬하고, URL 을 인코딩하고, JWT 를 뜯어볼 수 있습니다.

- JSON Formatter — JSON 을 보기 좋게 정렬하고 검증합니다. 트리 보기와 검색 지원
- URL Encode/Decode — RFC 3986 기준 인코딩
- Base64 Encode/Decode — URL-safe 방식과 패딩 자동 보정 지원
- JWT Decoder — 토큰을 헤더·페이로드·서명으로 분리해 보여 줍니다 (디코드만 하며 서명 검증은 하지 않습니다)
- Text Case Converter — camelCase, PascalCase, snake_case, kebab-case, SCREAMING_SNAKE_CASE, dot.case, Title Case, UPPERCASE, lowercase 9가지
- Hash Generator — MD5, SHA-1, SHA-256, SHA-512 를 한 번에
- Unix Timestamp Converter — 초·밀리초, ISO 8601, UTC, 현지 시각
- Number Base Converter — 10진·2진·8진·16진 변환, 0x / 0b / 0o 자동 인식
- String Escape/Unescape — 문자열 이스케이프 처리
- Color Converter — HEX 를 RGB·HSL 로 변환하고 미리보기와 붙여 쓸 코드 조각까지

- 자동 저장: 다음에 도구를 열면 입력했던 내용이 그대로 남아 있습니다
- 한 번 눌러 클립보드에 복사
- 다크 모드
- 변환은 모두 기기 안에서 처리되며 입력한 내용은 어디에도 올라가지 않습니다

앱 화면은 영어로만 되어 있습니다.

문의: tjdrhs90@gmail.com

## Dev Tool box Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/21/fa/e6/21fae6eb-31c7-3cb9-4a4f-2a09b942db51/1.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/93/4b/f4/934bf4b3-d1a5-fd21-d8db-0838660f9778/2.png/1320x2868.png)

## Dev Tool box Rating Breakdown in South Korea
- 5 stars: 3 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)



## Dev Tool box Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Free | Australia | Developer Tools | #128 |

## Dev Tool box Discovered Keywords
- dev tool box
- 개발자 도구

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## Dev Tool box Available In
- [South Korea](https://apptail.io/app/dev-tool-box-cAxw/south-korea)
- [Switzerland](https://apptail.io/app/dev-tool-box-cAxw/switzerland)
- [Australia](https://apptail.io/app/dev-tool-box-cAxw/australia)
- [Azerbaijan](https://apptail.io/app/dev-tool-box-cAxw/azerbaijan)
- [Belgium](https://apptail.io/app/dev-tool-box-cAxw/belgium)
- [Bulgaria](https://apptail.io/app/dev-tool-box-cAxw/bulgaria)
- [Brazil](https://apptail.io/app/dev-tool-box-cAxw/brazil)
- [Belarus](https://apptail.io/app/dev-tool-box-cAxw/belarus)
- [Belize](https://apptail.io/app/dev-tool-box-cAxw/belize)
- [Canada](https://apptail.io/app/dev-tool-box-cAxw/canada)
- [Chile](https://apptail.io/app/dev-tool-box-cAxw/chile)
- [China](https://apptail.io/app/dev-tool-box-cAxw/china)
- [Colombia](https://apptail.io/app/dev-tool-box-cAxw/colombia)
- [Cyprus](https://apptail.io/app/dev-tool-box-cAxw/cyprus)
- [Czechia](https://apptail.io/app/dev-tool-box-cAxw/czechia)
- [Germany](https://apptail.io/app/dev-tool-box-cAxw/germany)
- [Algeria](https://apptail.io/app/dev-tool-box-cAxw/algeria)
- [Ecuador](https://apptail.io/app/dev-tool-box-cAxw/ecuador)
- [Egypt](https://apptail.io/app/dev-tool-box-cAxw/egypt)
- [Spain](https://apptail.io/app/dev-tool-box-cAxw/spain)
- [Finland](https://apptail.io/app/dev-tool-box-cAxw/finland)
- [France](https://apptail.io/app/dev-tool-box-cAxw/france)
- [United Kingdom](https://apptail.io/app/dev-tool-box-cAxw/united-kingdom)
- [Honduras](https://apptail.io/app/dev-tool-box-cAxw/honduras)
- [Croatia](https://apptail.io/app/dev-tool-box-cAxw/croatia)
- [Hungary](https://apptail.io/app/dev-tool-box-cAxw/hungary)
- [Indonesia](https://apptail.io/app/dev-tool-box-cAxw/indonesia)
- [Israel](https://apptail.io/app/dev-tool-box-cAxw/israel)
- [India](https://apptail.io/app/dev-tool-box-cAxw/india)
- [Iceland](https://apptail.io/app/dev-tool-box-cAxw/iceland)
- [Japan](https://apptail.io/app/dev-tool-box-cAxw/japan)
- [Cayman Islands](https://apptail.io/app/dev-tool-box-cAxw/cayman-islands)
- [Kazakhstan](https://apptail.io/app/dev-tool-box-cAxw/kazakhstan)
- [Lebanon](https://apptail.io/app/dev-tool-box-cAxw/lebanon)
- [Lithuania](https://apptail.io/app/dev-tool-box-cAxw/lithuania)
- [North Macedonia](https://apptail.io/app/dev-tool-box-cAxw/north-macedonia)
- [Macao SAR China](https://apptail.io/app/dev-tool-box-cAxw/macau)
- [Mexico](https://apptail.io/app/dev-tool-box-cAxw/mexico)
- [Malaysia](https://apptail.io/app/dev-tool-box-cAxw/malaysia)
- [Netherlands](https://apptail.io/app/dev-tool-box-cAxw/netherlands)
- [Norway](https://apptail.io/app/dev-tool-box-cAxw/norway)
- [Philippines](https://apptail.io/app/dev-tool-box-cAxw/philippines)
- [Pakistan](https://apptail.io/app/dev-tool-box-cAxw/pakistan)
- [Poland](https://apptail.io/app/dev-tool-box-cAxw/poland)
- [Portugal](https://apptail.io/app/dev-tool-box-cAxw/portugal)
- [Slovakia](https://apptail.io/app/dev-tool-box-cAxw/slovakia)
- [Thailand](https://apptail.io/app/dev-tool-box-cAxw/thailand)
- [United States](https://apptail.io/app/dev-tool-box-cAxw/united-states)
- [Argentina](https://apptail.io/app/dev-tool-box-cAxw/argentina)
- [South Africa](https://apptail.io/app/dev-tool-box-cAxw/south-africa)
- [Austria](https://apptail.io/app/dev-tool-box-cAxw/austria)

---

## About AppTail

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