Which offline utility should I add to Nexora Tools next?

I’m preparing to launch Nexora Tools, a private Windows toolkit that runs entirely offline.

The first version includes nine utilities for QR codes, JSON formatting, image resizing, UUIDs, Base64, timestamps, passwords, hashes, and color picking. No accounts, subscriptions, ads, or file uploads are required.

I’m deciding what to build next. Which would be most useful to you?

• PDF tools
• Batch image conversion and compression
• File checksum verification
• Text and CSV utilities
• Something else

I’d appreciate any feedback or suggestions before launch!