Contact

One address for everything: eogkr.kim@gmail.com. It is read by the person who writes the tools, so a message about a broken PDF reaches whoever will be fixing it.

Reporting something that is broken

This is the most useful message you can send, and most of what has been fixed here started as one. What makes a report actionable:

• The file, if there is one. Tools break on particular documents, not in general — a PDF whose fonts are subset oddly, a CSV saved as EUC-KR, a HEIC from a specific phone. Without the file the report is usually a guess.
• Which tool, and what you clicked. "Merge PDF, four files, the third one came out blank" is enough to start.
• Your browser and platform. Safari and Chrome disagree about more than they should.

If the file is confidential, say so and describe what is unusual about it instead — how many pages, whether it is a scan, whether it came from a form, which language. That is often enough to reproduce it with a document of our own.

Asking for a tool

Requests are welcome, and the thing worth writing is the job rather than the tool: "I get bank statements as PDFs and need the tables in a spreadsheet" says more than "add a PDF-to-Excel converter", because sometimes what you need already exists here under a name you would not have searched for.

One constraint shapes every answer: everything here runs in your browser. If a job genuinely needs a server — sending mail, storing files between visits, calling a paid API — it will not be built here, and saying so quickly is more useful than a maybe.

What we cannot do

• Recover a file. Nothing you open is uploaded, so there is no copy on any server — not one we are withholding, one that never existed. See the privacy policy for what that means in practice.
• See what went wrong on your machine. No analytics of ours records what you did in a tool, which is why the description in your message is all there is to work from.
• Give legal, financial, medical or tax advice. The calculators are arithmetic, and the terms say plainly that they are not advice.

Everything else

Licensing, corrections, takedown requests and press questions go to the same address. If you are writing about how your data is handled, the privacy policy andthe about page may answer it faster than we can — the about page includes two ways to verify the "nothing is uploaded" claim yourself rather than take our word for it.

MakerBox is run independently. There is no account system, no newsletter and no support queue — just an inbox.