Practical code tools and automation helpers to speed up everyday tasks.

From converters and batch processors to smart generators, all tools run in-browser, with no setup needed.

✓ Made for developers, designers, and power users.
✓ Fast, distraction-free, and export-ready.
✓ 100% browser-based. No setup, no sign-up.

Fast, reliable, and ready for real-world tasks.

Image Shrink

Generate

Image Shrink-BULK

Generate

Mobile Visual Tester

Generate

Video Shrink

Generate

Data URL

Generate

Exif Cleaner

Generate

QR Code (Universal)

Generate

QR-WiFi

Generate

QR-vCard

Generate

Headline Generator

Generate

CTA Generator

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Meta Description

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Headline Generator

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Why CoreTools Matter?

CoreTools by OptimNest are practical, browser-based tools built to handle everyday creative and technical tasks in seconds. Developers, designers, marketers, and website owners use them daily to generate code, convert files, or process batches – all without installing software or creating an account.

Everything works directly in your browser: your data stays private and results are instant. No ads, no hidden fees, no waiting.

Use CoreTools to keep your work smooth and spend more time on real projects, not repetitive chores.