John Olorunfemi

John Olorunfemi

Building tools to solve real problems.
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Android still makes it too easy to lose a long reply, draft, or form entry and then forces you to rebuild the original wording from memory. Universal Undo helps bring back the last usable version of typed text before you start over. It is built for the exact moment text disappears on Android and you need a real way back.
Universal Undo
Universal UndoRecover lost text on Android before you retype everything
John Olorunfemistarted a discussion

And we are live!

Yeah. JsonExport.com is live and ready for would-be users. And yes, it's also live on the Product Hunt page starting today. Let's see what we can do collectively, shall we?

JsonExport is a professional JSON to Excel/CSV converter that runs fully in your browser. Most tools are slow, insecure, and fail on nested data. JsonExport handles real-world JSON with privacy-first local processing, smart flattening that removes [object Object], and streaming support for 100MB+ files. It includes a simple editor and a data grid to preview before export. Free to use and open source.
JsonExport
JsonExportConvert JSON files to Excel instantly. 100% Client-side.
John Olorunfemistarted a discussion

First Timer on the Product Hunt Scene! happy to connect.

Hi everyone. How are we doing today? I am John. I recently joined Product Hunt, and I would like to connect. I have eyes to see that the community is active and full of life. Definitely where I want to be. I trust I'm in good hands. Or is it "...nay"? Lol

John Olorunfemistarted a discussion

Handling large, sensitive JSON files fully in the browser. What edge cases should I watch for?

I’m building JsonExport, a JSON to Excel/CSV converter that runs entirely in the browser. The main motivation was privacy and scale. I kept running into tools that required uploading sensitive logs or customer data, or that completely fell apart once nested JSON or larger files were involved. I decided to go fully client-side using streaming parsers and Web Workers, which has worked...