Free · no signup · nothing uploaded
Small utilities I built for jobs that kept coming back. Each one runs entirely on your own machine — the file you drop in is read by JavaScript in this tab and never sent to a server.
No upload, no account, no logging. There is no backend here. Close the tab and every trace is gone. That also means these tools keep working if you save the page and go offline.
Built to answer a real job brief, then left up for anyone to use.
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I freelance on data plumbing — API integrations, scrapers, spreadsheet and document pipelines. When the same problem shows up in three different briefs, I build the small version of it, put it here, and link it instead of describing it.
Larger deployed demos — a live NSE indices feed, a solar digital-twin REST API, PDF→Excel conversion and structure-preserving text extraction — are listed on the portfolio page.