A secure, lightweight developer toolkit: JSON Formatter, Color Picker, and API Request Tester.
Users
3
−2 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#304K
#246K among extensions
Version
1.1.0
updated 10 May 2026
Users
monthly, 6 months
Latest, 15 Oct 2026:3 usersMove the mouse over the chart for any month
Ratings count
monthly, 6 months
Latest, 15 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Developer Mini Toolkit
🚀 Developer Mini Toolkit
Developer Mini Toolkit is a lightweight yet powerful helper extension designed for developers.
It brings a JSON formatter, color picker, a mini Postman-style API request tester, and a text utility toolkit directly into your Chrome toolbar — so you can work faster without leaving your browser.
🧩 Features
🔹 JSON Formatter & Validator
Format ugly or minified JSON into clean, readable output in one click
Validate JSON and get clear error messages when something is wrong
Pretty-print, minify, and copy formatted JSON quickly
All processing happens locally in your browser
🎨 Color Picker for UI Work
Quickly pick, edit, and copy color values
Switch between HEX, RGB, and HSL formats
Keep a small history of recent colors for easy reuse
Perfect for tweaking front-end designs and styles
🌐 Mini API Request Tester (Postman-like)
Send GET, POST, PUT, PATCH, and DELETE requests
Configure URL, headers, query params, and JSON body with ease
View status, headers, and formatted response body in one place
Ideal for quick API checks, debugging, and small experiments
🔤 Text Tools
Convert text between UPPER, lower, Capitalize, camelCase, snake_case, and kebab-case
Remove extra spaces or duplicate lines instantly
Generate URL-friendly slugs from any text
Live word, character, and line count as you type
🛠️ Built for Developers
Minimal, focused UI designed to stay out of your way
All tools are available directly from the extension popup
Small footprint and optimized for fast performance
🔒 Privacy & Security
No unnecessary analytics, tracking, or data collection
All processing runs locally in your browser — nothing is sent to any server
Built purely to improve your productivity as a developer
💡 Why Developer Mini Toolkit?
Developer Mini Toolkit feels like a compact developer panel inside your browser.
Whether you work on frontend, backend, or APIs, it helps you handle small, repetitive tasks faster so you can focus on the important parts of your code.