• 6 min read

🚀 Announcing DevKit.free - The Ultimate Free Tollkit for Developers

We’re excited to announce the launch of DevKit.free—your new favorite toolkit for making website development easier, faster, and more efficient. Even more exciting? This project came to life in just one day as part of a spirited internal hackathon at

What is DevKit.free?

DevKit.free is a collection of essential, free-to-use tools aimed at solving everyday challenges faced by web developers and creators. Whether you’re tackling image performance, optimizing your social share cards, or just need a snappy utility to streamline your workflow, DevKit.free is here to help.

From Hackathon Idea to Deployed Product—in a Day!

The idea for DevKit.free was sparked in the middle of one of our regular hackathon sessions. By lunchtime, the domain was purchased as a playful proof of concept. By 4pm the same day, the site was live, featuring three fully functional developer tools!

Why is this significant?

The speed at which DevKit.free came together isn’t just a testament to our talented team—it really highlights the maturity and reliability of the development processes we’ve built at Rezero Software. From infrastructure to deployment, everything came together smoothly and swiftly, enabling us to launch a stable, valuable resource in record time.

We’re incredibly proud of the creativity, collaboration, and technical prowess that powered this launch—and we hope DevKit.free makes your own projects easier, too!


The Initial Toolkit: Three Tools to Supercharge Your Sites

Here’s a quick look at what you can do with DevKit.free right now:

1. Site Images Optimizer

  • Bulk image analysis: Scan any website to find all image files automatically.
  • WebP conversion: Convert images to the ultra-efficient WebP format, saving up to 50% in file size.
  • Savings calculator: Instantly see how much bandwidth and loading time you’re saving.

Try Site Images Optimizer →


2. Quick Image Resizer

  • Simple drag & drop: Just select and drop images onto the tool.
  • Batch processing: Resize multiple images at once—no tedious one-by-one uploads.
  • Live preview: Instantly see new dimensions before you download.

Try Quick Image Resizer →


3. OG Image Checker

  • Social preview simulation: Instantly view Facebook, Twitter, LinkedIn, and WhatsApp cards.
  • Open Graph analysis: Check your OG tags and spot issues fast.
  • Multi-platform support: See exactly what your audience sees on every channel.

Try OG Image Checker →


What’s Next? 🚀

This is just the beginning. DevKit.free was born in a burst of creative energy, but we’re eager to evolve it together with the community. We want to add more tools that YOU find helpful for daily workflow, performance, or troubleshooting. Your feedback and ideas are invaluable—let us know what you’d love to see next!

Try DevKit.free Today

Whether you’re deploying your next big project or just need a quick utility, DevKit.free is open and ready for you to explore. Everything is completely free, with zero paywalls or registration needed.

Check out the site and give our tools a spin—we can’t wait to hear what you think!


Thank you to the entire Rezero Software team for the creativity and drive that brought DevKit.free to life in a single day. Here’s to making the web a little better, together!

— The Rezero Software Team

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