About NexaLab Toolbox

NexaLab Toolbox is a small collection of free, fast, browser-based utilities for everyday data tasks — cleaning up JSON/CSV and splitting or merging PDFs. It's built and maintained as part of nexalab.app, a personal platform for small web tools and side projects.

Every tool here runs entirely client-side in your browser. Nothing you type or upload is sent to a server, logged, or stored — the page simply runs JavaScript locally to compute the result you see.

Have feedback, a bug report, or an idea for a new tool? Get in touch on the Contact page.