Title: Doohickey&#039;s Dev Tools
Author: mosaiclifecreative
Published: <strong>25 de febrero, 2026</strong>
Last modified: 5 de marzo, 2026

---

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# Doohickey's Dev Tools

 By [mosaiclifecreative](https://profiles.wordpress.org/mosaiclifecreative/)

[Download](https://downloads.wordpress.org/plugin/doohickeys-dev-tools.1.0.4.zip)

 * [Details](https://pe.wordpress.org/plugins/doohickeys-dev-tools/#description)
 * [Reviews](https://pe.wordpress.org/plugins/doohickeys-dev-tools/#reviews)
 *  [Installation](https://pe.wordpress.org/plugins/doohickeys-dev-tools/#installation)
 * [Development](https://pe.wordpress.org/plugins/doohickeys-dev-tools/#developers)

 [Support](https://wordpress.org/support/plugin/doohickeys-dev-tools/)

## Description

**Doohickey’s Dev Tools** puts a full suite of developer utilities right inside 
your WordPress admin. No more juggling browser tabs and bookmarking random websites—
everything you need is one click away.

#### Free Tools

**CSS Tools**
 * **Gradient Generator** — Linear and radial gradients with unlimited
color stops * **Box Shadow Generator** — Visual box-shadow builder with layered 
shadows * **Border Generator** — Shorthand and per-side border controls * **Border
Radius Generator** — Per-corner radius with visual preview * **Clip-Path Maker**—
Polygon, circle, ellipse, and inset clip paths * **Flexbox Generator** — Visual 
flexbox playground with container controls * **CSS Grid Generator** — Set columns,
rows, gaps, and alignment visually

**Color Tools**
 * **Color Picker** — HSV color picker with HEX, RGB, and HSL output***
Contrast Checker** — WCAG 2.1 AA/AAA compliance testing * **Color Converter** — 
Convert between HEX, RGB, HSL, and CMYK

**Code Tools**
 * **String Utilities** — Case conversion, reverse, slug, character/
word count * **Encoder / Decoder** — Base64, URL encoding, HTML entities, and more

**Generators**
 * **Placeholder Image** — Custom-sized placeholder images for mockups***
Lorem Ipsum** — Paragraphs, sentences, or words of filler text * **QR Code Generator**—
Instant QR codes from any text or URL

**SEO & Meta**
 * **Schema.org Generator** — Structured data for Article, Local 
Business, and FAQ * **Meta Tag Generator** — SEO meta tags, Open Graph, and Twitter
Cards

**Converters**
 * **SVG to PNG** — Client-side SVG conversion with scale options***
HTML to Markdown** — Convert HTML markup to clean Markdown * **Markdown Preview**—
Live Markdown editor with rendered preview * **Aspect Ratio Calculator** — Calculate
ratios from dimensions, scale with locked ratios, common size presets

#### Pro Version

Upgrade to Doohickey’s Dev Tools Pro for additional tools and features:

 * **Palette Generator** — Interactive color wheel with 7 harmony modes. Export 
   as CSS or SCSS variables.
 * **Code Formatter** — Auto-format JSON, HTML, CSS, JavaScript, and SQL
 * **Diff Checker** — Side-by-side text comparison with highlighted differences
 * **HTML Table Generator** — Visual table builder with CSV import
 * **Test Data Generator** — Generate realistic fake data (names, emails, addresses,
   etc.)
 * **Flexbox** — Per-item controls (flex-grow, flex-shrink, flex-basis, align-self,
   order)
 * **CSS Grid** — Templates (Holy Grail, Dashboard, 12-Col, etc.), custom definitions,
   per-cell spans
 * **Placeholder Image** — Social media presets and Data URI export
 * **Schema.org** — 5 additional types (Product, Person, Organization, Event, Recipe)
 * **QR Code** — Custom logo overlay

#### Why Doohickey’s Dev Tools?

 * **Zero external dependencies** — Everything runs client-side in your browser
 * **No data leaves your site** — Your code and content stay private
 * **Copy-ready output** — One-click copy for all generated CSS, HTML, and code
 * **Consistent interface** — Every tool follows the same clean, intuitive layout
 * **Lightweight** — Single JavaScript bundle, loads only on the tools page

### Source Code & Build Instructions

The full source code for this plugin, including uncompiled JavaScript and CSS, is
available at:
 https://github.com/mosaiclifecreative/doohickeys-dev-tools

To build from source:

 1. Clone the repository
 2. Run `npm install` to install dependencies
 3. Run `npm run build` to compile the production bundle
 4. The compiled files are output to the `build/` directory

The project uses `@wordpress/scripts` for building. Source files are in `admin/js/`(
JSX) and `admin/css/` (CSS).

## Screenshots

 * [[
 * CSS Gradient Generator with full sidebar navigation
 * [[
 * Box Shadow Generator with visual preview and layered shadow controls
 * [[
 * Color Converter with HEX, RGB, HSL, HWB, and CMYK output
 * [[
 * Contrast Checker with WCAG 2.1 AA/AAA compliance results
 * [[
 * Border Radius Generator with shape presets and per-corner controls
 * [[
 * Schema.org Generator with Article structured data and JSON-LD output
 * [[
 * QR Code Generator with custom colors
 * [[
 * SVG to PNG Converter with file upload and code paste options

## Installation

 1. Go to **Plugins  Add New** in your WordPress admin
 2. Search for «Doohickey’s Dev Tools»
 3. Click **Install Now**, then **Activate**
 4. Navigate to **Doohickey’s** in your admin sidebar
 5. Start building!

## FAQ

### Does this plugin affect my site’s frontend?

No. Doohickey’s Dev Tools only loads on its own admin page. It adds zero scripts,
styles, or markup to your public-facing site.

### Do I need to be online for the tools to work?

Most tools work entirely offline once the page is loaded. The QR Code generator 
and Placeholder Image generator use client-side rendering. No external API calls
are made.

### What does the Pro version include?

Pro unlocks 5 additional tools (Palette Generator, Code Formatter, Diff Checker,
HTML Table Generator, Test Data Generator) plus advanced features in 5 more tools.
The Pro version is available separately at mosaiclifecreative.com.

### Is my code/data sent anywhere?

Never. All processing happens in your browser. Nothing is transmitted to external
servers.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Doohickey's Dev Tools” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ mosaiclifecreative ](https://profiles.wordpress.org/mosaiclifecreative/)

[Translate “Doohickey's Dev Tools” into your language.](https://translate.wordpress.org/projects/wp-plugins/doohickeys-dev-tools)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/doohickeys-dev-tools/),
check out the [SVN repository](https://plugins.svn.wordpress.org/doohickeys-dev-tools/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/doohickeys-dev-tools/)
by [RSS](https://plugins.trac.wordpress.org/log/doohickeys-dev-tools/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.0.4

 * Fixed: plugin no longer deactivates itself after updating from 1.0.2

#### 1.0.3

 * Smooth upgrade path: free version auto-deactivates when Pro is installed
 * Updated installation instructions

#### 1.0.2

 * Renamed plugin to Doohickey’s Dev Tools
 * New slug: doohickeys-dev-tools
 * Updated Freemius configuration for WordPress.org compliance
 * Free tools are fully functional with no locked features
 * Pro tools and features available separately via upgrade

#### 1.0.1

 * Renamed to «by Mosaic Life Creative»
 * Default gradient fix
 * Tested up to WordPress 6.9

#### 1.0.0

 * Initial release
 * 21 free developer tools across 6 categories
 * Modern React-powered interface
 * Fully client-side — no external API calls

## Meta

 *  Version **1.0.4**
 *  Last updated **1 mes ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 5.8 or higher **
 *  Tested up to **6.9.4**
 *  PHP version ** 7.4 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/doohickeys-dev-tools/)
 * Tags
 * [color picker](https://pe.wordpress.org/plugins/tags/color-picker/)[css generator](https://pe.wordpress.org/plugins/tags/css-generator/)
   [developer-tools](https://pe.wordpress.org/plugins/tags/developer-tools/)[web development](https://pe.wordpress.org/plugins/tags/web-development/)
 *  [Advanced View](https://pe.wordpress.org/plugins/doohickeys-dev-tools/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/doohickeys-dev-tools/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/doohickeys-dev-tools/reviews/)

## Contributors

 *   [ mosaiclifecreative ](https://profiles.wordpress.org/mosaiclifecreative/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/doohickeys-dev-tools/)