App Intel
512

Dev Tool box - Developer Tools

LiveGonigon51 apps · 32K installsToolsFree · contains adscom.gonigon.devtoolbox

JSON formatter, URL encoder, Base64, JWT decoder, hash generator, and more.

Alert me★ WatchOpen in Play ↗
Total installs
119
exact · Play shows 100+
Installs / day
—
measured after our second crawl (about a day)
Rating
—★
— ratings · — reviews
Released
23 Mar 2026
7mo ago
Last update
14 Sept 2026
v1.0.1 · 28d ago
Countries
—
not checked yet

Install history

exact counter from Google Play
Not enough history yet — check back tomorrow
Not enough history yet — check back tomorrow

Installs per day · last 90 days

Not enough history yet — check back tomorrow

Change timeline

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Manifest analysis reads only the required APK ranges. Base APK downloads may need separate device splits to install.

Data safety

declared by the developer on Google Play
  • No data shared with third parties
  • No data collected

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

10 in 3 groups
5 Sensitive1 Notable4 Routine

What this app can do with your phone

  • Read photos, videos, and other files saved in your phone's shared storage
  • Add, change or delete photos, videos and other files in your phone's storage
  • Show its own windows or bubbles on top of other apps you are using
Photos/Media/FilesSensitive2

Access to photos, videos, music and other files stored on your device

  • Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
  • Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE
StorageSensitive2

Access to files, photos and media saved on your phone's storage

  • Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
  • Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE
OtherSensitive6

Access to miscellaneous device features that don't fit other categories

  • Show its own windows or bubbles on top of other apps you are usingdraw over other apps · SYSTEM_ALERT_WINDOW
  • Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
  • Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
  • Connect to the internet to load content and send datafull network access · INTERNET
  • Make your phone vibratecontrol vibration · VIBRATE
  • Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Screenshot 1 Download
Screenshot 2 Download
Full description
Dev Toolbox is a fast, lightweight developer utility app for your mobile device 🛠️ Format JSON, encode URLs, decode Base64, inspect JWT tokens, and more -- all without opening your laptop ⚡ 📋 Features 🔸 JSON Formatter — Pretty-print and validate JSON strings instantly. 🔸 URL Encode/Decode — Encode and decode URLs with RFC 3986 compliance. 🔸 Base64 Encode/Decode — Convert text to and from Base64. Supports URL-safe format. 🔸 JWT Decoder — Decode JWT tokens into Header, Payload, and Signature. 🔸 Text Case Converter — Convert between 9 text cases including camelCase, snake_case, kebab-case, PascalCase, and more. 🔸 Hash Generator — Generate MD5, SHA-1, SHA-256, and SHA-512 hashes at once. 🔸 Unix Timestamp Converter — Convert between Unix timestamps and human-readable dates. 🔸 Number Base Converter — Auto-detect and convert between decimal, binary, octal, and hexadecimal. 🔸 String Escape/Unescape — Handle escape sequences in strings. 🔸 Color Converter — Convert between HEX, RGB, and HSL with a live color preview. ✨ Highlights 💾 Auto-save — Your input is saved and restored automatically. 🌙 Dark mode support 📋 One-tap copy to clipboard 📱 On-device — every conversion runs locally and your input is never uploaded.

What's new

Fixed the tool list not showing on iPad. The tool list is now visible as soon as the app opens. Fixed the ad consent notice and the tracking prompt appearing at the same time.

Growing in Tools

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