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楊東霖
楊東霖

Posted on • Originally published at devtoolkit.cc

DevToolkit Social Media Kit

#webdev #programming #tools #productivity

Want to share DevToolkit with your developer community? Here are ready-to-use social media templates for Twitter/X, LinkedIn, and Reddit. Just click "Copy" on any template, paste it into your platform of choice, and hit publish.

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<!-- TWITTER / X POSTS -->
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## Twitter / X Posts

Short, punchy tweets optimized for engagement. Each is under 280 characters.

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General Promotion

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    Copy
  </button>


<pre class="px-4 py-4 text-sm text-gray-800 dark:text-gray-200 whitespace-pre-wrap font-sans bg-white dark:bg-gray-900 m-0 border-0">Just found DevToolkit — 30+ free browser-based dev tools with ZERO signup.
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JSON formatter, Base64 encoder, JWT decoder, hash generator, regex tester... all in one place.

Runs 100% client-side. Your data never leaves your browser.

https://devtoolkit.cc

webdev #developer #tools #javascript #coding

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Tool Highlight: JSON Formatter

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    Copy
  </button>


<pre class="px-4 py-4 text-sm text-gray-800 dark:text-gray-200 whitespace-pre-wrap font-sans bg-white dark:bg-gray-900 m-0 border-0">Stop pasting JSON into random websites that send your data to a server.
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DevToolkit's JSON Formatter runs entirely in your browser:

  • Instant formatting & validation
  • Syntax highlighting
  • Handles 100KB+ payloads
  • No signup, no ads, free forever

https://devtoolkit.cc/tools/json-formatter

JSON #webdev #devtools

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AI Tools Announcement

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    Copy
  </button>


<pre class="px-4 py-4 text-sm text-gray-800 dark:text-gray-200 whitespace-pre-wrap font-sans bg-white dark:bg-gray-900 m-0 border-0">We just added AI-powered tools to DevToolkit:
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  • AI Code Explainer
  • AI Regex Generator
  • AI SQL Generator
  • AI Color Palette Generator

All free. All browser-based. All private.

https://devtoolkit.cc

AI #developer #coding #GPT #webdev

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"Did You Know?" Format

  <button onclick="copyTemplate(this)" class="inline-flex items-center gap-1.5 px-3 py-1.5 text-xs font-medium rounded-lg bg-primary-600 text-white hover:bg-primary-700 transition-colors">
    <svg class="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"/></svg>
    Copy
  </button>


<pre class="px-4 py-4 text-sm text-gray-800 dark:text-gray-200 whitespace-pre-wrap font-sans bg-white dark:bg-gray-900 m-0 border-0">Did you know most "free" online dev tools send your code to their servers?
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DevToolkit runs 100% client-side. Your data literally never leaves your machine.

30+ tools. Zero tracking. Zero signup.

https://devtoolkit.cc

privacy #security #webdev #opensource

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Developer Humor

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    <svg class="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"/></svg>
    Copy
  </button>


<pre class="px-4 py-4 text-sm text-gray-800 dark:text-gray-200 whitespace-pre-wrap font-sans bg-white dark:bg-gray-900 m-0 border-0">My browser tabs at 2 AM:
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  • "json formatter online"
  • "base64 decode"
  • "regex tester"
  • "epoch to date converter"
  • "uuid generator"
  • "url encode"

Or you could just bookmark one site: https://devtoolkit.cc

developer #programming #webdev #relatable

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## LinkedIn Posts

Professional, longer-form posts designed for developer audiences on LinkedIn.

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Product Launch Announcement

  <button onclick="copyTemplate(this)" class="inline-flex items-center gap-1.5 px-3 py-1.5 text-xs font-medium rounded-lg bg-primary-600 text-white hover:bg-primary-700 transition-colors">
    <svg class="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"/></svg>
    Copy
  </button>


<pre class="px-4 py-4 text-sm text-gray-800 dark:text-gray-200 whitespace-pre-wrap font-sans bg-white dark:bg-gray-900 m-0 border-0">I got tired of opening 10 different websites for basic developer tasks.
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So I built DevToolkit — a single platform with 30+ free, browser-based developer tools.

Here's what's included:

Data & Formatting:

  • JSON Formatter & Validator
  • YAML to JSON Converter
  • SQL Formatter
  • CSS & JavaScript Minifiers

Encoding & Security:

  • Base64 Encode/Decode
  • JWT Decoder
  • Hash Generator (SHA-256, MD5, etc.)
  • Password Generator

Converters & Utilities:

  • Unix Timestamp Converter
  • UUID Generator
  • Regex Tester
  • Markdown Preview
  • Color Converter

AI-Powered Tools:

  • Code Explainer
  • Regex Generator
  • SQL Generator

Every tool runs 100% in your browser. No data is sent to any server. No signup required. No ads.

If this saves you even 10 minutes a week, it's worth a bookmark.

https://devtoolkit.cc

DeveloperTools #WebDevelopment #Programming #Productivity #FreeTools

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"Why I Built This" Story

  <button onclick="copyTemplate(this)" class="inline-flex items-center gap-1.5 px-3 py-1.5 text-xs font-medium rounded-lg bg-primary-600 text-white hover:bg-primary-700 transition-colors">
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    Copy
  </button>


<pre class="px-4 py-4 text-sm text-gray-800 dark:text-gray-200 whitespace-pre-wrap font-sans bg-white dark:bg-gray-900 m-0 border-0">A few months ago, I pasted a JWT token into a random online decoder.
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Then I realized: that token contained user credentials. And I just sent it to someone else's server.

That moment changed how I think about developer tools.

Most "free" online tools work by sending your data to a backend. That means:

  • Your API keys could be logged
  • Your JSON payloads could be stored
  • Your code snippets could be analyzed

I built DevToolkit with one rule: everything runs client-side. Period.

Every computation happens in your browser using JavaScript and WebAssembly. No server calls. No analytics on your input. No data retention.

It's free, it's private, and it has every tool I reach for daily.

If you care about developer privacy, give it a look: https://devtoolkit.cc

What tools do you wish existed? I'm always adding new ones.

Privacy #Security #DeveloperExperience #WebDev #JavaScript

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Developer Productivity Tips

  <button onclick="copyTemplate(this)" class="inline-flex items-center gap-1.5 px-3 py-1.5 text-xs font-medium rounded-lg bg-primary-600 text-white hover:bg-primary-700 transition-colors">
    <svg class="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"/></svg>
    Copy
  </button>


<pre class="px-4 py-4 text-sm text-gray-800 dark:text-gray-200 whitespace-pre-wrap font-sans bg-white dark:bg-gray-900 m-0 border-0">5 small habits that saved me hours every week as a developer:
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  1. Bookmark a single tool hub instead of Googling "json formatter" every time
  2. Use a proper regex tester before writing complex patterns in code
  3. Always validate JWTs locally instead of using server-based decoders
  4. Generate UUIDs and passwords with crypto-grade randomness, not Math.random()
  5. Minify CSS/JS before deploying — even small savings compound at scale

I do all five with one free tool: https://devtoolkit.cc

No signup. No ads. 100% client-side. 30+ tools.

What's your most-used developer utility? Drop it in the comments.

DeveloperProductivity #CodingTips #WebDevelopment #SoftwareEngineering #DevTools

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## Reddit Posts

Formatted for subreddits like r/webdev, r/programming, and r/javascript. Reddit users value authenticity — avoid sounding too promotional.

<!-- Reddit 1 -->

Show HN / "I Built This"

r/webdev, r/programming

  <button onclick="copyTemplate(this)" class="inline-flex items-center gap-1.5 px-3 py-1.5 text-xs font-medium rounded-lg bg-primary-600 text-white hover:bg-primary-700 transition-colors">
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<pre class="px-4 py-4 text-sm text-gray-800 dark:text-gray-200 whitespace-pre-wrap font-sans bg-white dark:bg-gray-900 m-0 border-0">Title: I built 30+ free browser-based developer tools — no signup, no ads, 100% client-side
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Hey everyone,

I've been building a collection of developer tools that I personally needed in my day-to-day workflow. Instead of Googling "json formatter" or "base64 decode" every time, I wanted one clean, fast, privacy-respecting hub.

Here's what's available so far:

Formatters: JSON, SQL, CSS, JavaScript, HTML
Encoders: Base64, URL Encode/Decode, JWT Decoder
Generators: UUID, Password, Hash (SHA-256, MD5, etc.)
Converters: Unix Timestamp, YAML to JSON, Color Converter, Number Base
Code Tools: Regex Tester, Markdown Preview, Diff Checker
AI Tools: Code Explainer, Regex Generator, SQL Generator

Everything runs in the browser — no server calls, no data collection. I built it with Astro + React + Tailwind.

Check it out: https://devtoolkit.cc

I'd love feedback on what tools to add next. What utilities do you use daily that you wish had a cleaner free version?

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Specific Tool Recommendation

r/javascript, r/webdev

  <button onclick="copyTemplate(this)" class="inline-flex items-center gap-1.5 px-3 py-1.5 text-xs font-medium rounded-lg bg-primary-600 text-white hover:bg-primary-700 transition-colors">
    <svg class="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"/></svg>
    Copy
  </button>


<pre class="px-4 py-4 text-sm text-gray-800 dark:text-gray-200 whitespace-pre-wrap font-sans bg-white dark:bg-gray-900 m-0 border-0">Title: Free online regex tester that actually doesn't suck
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Most online regex testers are either cluttered with ads, require accounts, or (worst case) send your test strings to a server.

Found this one that runs entirely client-side: https://devtoolkit.cc/tools/regex-tester

What I like about it:

  • Real-time matching with highlight
  • Clean UI, no ad clutter
  • Supports flags (global, multiline, case-insensitive)
  • Works on mobile too
  • Part of a bigger toolkit with 30+ other dev utilities

Not affiliated, just a happy user. Figured I'd share since regex questions come up here daily.

<!-- Reddit 3 -->

"Free Alternative to X"

r/webdev, r/selfhosted

  <button onclick="copyTemplate(this)" class="inline-flex items-center gap-1.5 px-3 py-1.5 text-xs font-medium rounded-lg bg-primary-600 text-white hover:bg-primary-700 transition-colors">
    <svg class="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"/></svg>
    Copy
  </button>


<pre class="px-4 py-4 text-sm text-gray-800 dark:text-gray-200 whitespace-pre-wrap font-sans bg-white dark:bg-gray-900 m-0 border-0">Title: Free alternative to paid developer tool suites (JSON formatter, JWT decoder, etc.)
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I see a lot of posts asking about free alternatives to various paid dev tools, so here's a collection I've been using:

Instead of paying for:

  • Postman's built-in JSON formatter → DevToolkit JSON Formatter
  • jwt.io (works but covered in auth0 branding) → DevToolkit JWT Decoder
  • Random ad-heavy password generators → DevToolkit Password Generator (uses Web Crypto API)
  • Paid regex testing tools → DevToolkit Regex Tester

The whole suite is at https://devtoolkit.cc

Key difference from most alternatives:

  1. Privacy: Everything runs client-side. Your data never touches a server.
  2. No account required: Just open and use.
  3. No ads: Clean interface, fast loading.
  4. 30+ tools: One bookmark replaces a dozen.

Not trying to shill — genuinely use this daily and thought others might find it useful. Anyone know of similar all-in-one tool collections worth checking out?

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## Posting Tips

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1.

Personalize the templates. Add your own experience or opinion to make posts feel authentic. Generic promotional posts get ignored.

  </li>
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2.

Time your posts. Best times for developer content: Tuesday-Thursday, 9-11 AM EST for LinkedIn; evenings/weekends for Reddit; anytime for Twitter.

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3.

Engage with comments. Reply to every comment within the first hour. Algorithms reward engagement.

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4.

Follow subreddit rules. Read the sidebar before posting on Reddit. Some subreddits have specific self-promotion policies.

  </li>
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5.

Add a screenshot or GIF. Posts with visuals get 2-3x more engagement on every platform.

  </li>
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}

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