Whether you are building a portfolio, shipping a side project, or grinding through daily dev work, having the right set of tools in your belt can save hours every week. The best part? You do not have to pay a dime for any of these.

We put together a list of 10 free online tools that cover everything from writing code snippets to generating QR codes. Every tool runs directly in your browser with no account needed and no data stored on any server.

Code Snippet Generator

Need to share a clean, syntax-highlighted piece of code? The Code Snippet tool turns your raw code into a beautiful image you can use in blog posts, presentations, or documentation.

It supports over 20 programming languages, offers multiple themes, and lets you export as a high-resolution PNG. Think of it as a lightweight alternative to Carbon.

Color Palette Generator

Choosing colors for a new project is surprisingly time-consuming. The Color Palette Generator uses color theory to create harmonious palettes based on complementary, analogous, triadic, and monochromatic schemes.

Each color in the palette includes WCAG accessibility contrast ratings, so you can check readability before you start designing.

CSS Flexbox/Grid Generator

Stop guessing at CSS layout properties. The CSS Flexbox/Grid Generator gives you a visual editor where you can toggle between Flexbox and Grid modes, adjust properties, and see the layout update in real time.

When you are happy with the result, copy the generated CSS and HTML directly into your project. It saves your settings to the browser so you can pick up where you left off.

Image Gradient Tool

Creating thumbnails and social media graphics usually means opening a full image editor. The Image Gradient Tool simplifies this by letting you upload an image and add gradient overlays, rounded corners, and custom padding.

It is perfect for creating blog cover images, social media posts, and presentation slides without touching Photoshop or Figma.

Markdown Editor and Preview

The Markdown Editor provides a side-by-side view where you write Markdown on the left and see it rendered in real time on the right. It supports GitHub Flavored Markdown including tables, task lists, and fenced code blocks.

Great for writing README files, blog drafts, or any documentation before pasting it into your actual project.

JSON Format and Validate

Dealing with messy or minified JSON from an API? The JSON Format and Validate tool instantly formats it with proper indentation and catches syntax errors with specific line numbers.

It handles large documents without breaking a sweat. One click copies the formatted output to your clipboard.

Password Generator

Weak passwords are still one of the biggest security risks. The Password Generator creates strong, random passwords with customizable length and character types.

A visual strength indicator shows you exactly how secure each generated password is. Everything runs client-side, so your passwords never touch any server.

QR Code Generator

The QR Code Generator creates QR codes for URLs, text, email addresses, or any data. You can customize colors, sizes, and error correction levels, then download the result as PNG or SVG.

Useful for event materials, business cards, restaurant menus, or linking to your portfolio from a printed resume.

Meta Tags Generator

Getting your meta tags right is critical for SEO and social media sharing. The Meta Tags Generator builds Open Graph tags for Facebook and LinkedIn, Twitter Card tags, and standard SEO meta tags.

The live preview shows you exactly how your page will look when shared on social media or displayed in Google search results.

Core Web Vitals Checker

Google uses Core Web Vitals as a ranking factor, so knowing your scores matters. The Core Web Vitals Checker measures your Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS) using Google's PageSpeed Insights API.

You can download a professional PDF report to share with your team or clients.

Why These Tools Are Different

Most online tool sites are full of ads, require you to create an account, or upload your data to their servers. These tools take a different approach:

  • No account needed - Just visit the page and start using it
  • No data storage - Everything runs in your browser
  • No ads or paywalls - Completely free with no hidden limits
  • Built for developers - Features that actually matter for daily work

Start Using Them Today

All 10 tools are available right now at mydevpa.ge/tools. Bookmark the page, share it with your team, and let us know if there is a tool you would like us to build next.