Who makes ZumaTools

Where a person maintains a tool, its page names them and links here. Pages on tax, health and official document rules can also name who reviewed them and when.

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  Mustafa Berber

  Owner, Novpix LLC

  Owner of Novpix LLC, the independent software company that builds and maintains ZumaTools.

The publisher

ZumaTools is published by Novpix LLC, a small independent software company registered in Delaware, United States, in December 2025, with its registered office at 131 Continental Dr, Suite 305, Newark, DE 19713. Novpix LLC is responsible for every tool on the site and for the explanation that goes with it. The same company makes CardPetal (animated e-cards), OrigamiDiagrams (step-by-step folding guides) and SeismoAtlas (earthquake data); when a ZumaTools page points to one of them, it is pointing to a sister site, not an advertiser.

ZumaTools itself started in July 2026. It now has 587 tools, each on its own page and each built to do one job — resize an image for a form, merge a PDF, work out a paycheck, play a quick game. The about page explains how the tools work, what runs on your device and what does not, and how the site is paid for.

Who does what

The team is small, and we would rather say so than imply otherwise. Unless a page names someone else, the tool and its explanation were built and written by the maintainer named above, who also reads the correction reports. A page on tax, health or official document rules names a separate reviewer only when a named person has actually checked it, and then shows the date they did; a page without a reviewer line has not had that outside check.

How a page is made and checked

• Built for one task. Each tool starts from a concrete job someone needs done, and its page explains what to enter, what the result means and where the tool stops being the right approach.
• Tested like a visitor would use it. Tools that change files have automated tests that run them in a real browser and inspect the output — that a compressed file really lands under the promised size, that a merged PDF keeps every page, that a passport photo has the required dimensions. Layouts are checked on phone-sized and desktop screens.
• Sourced where facts can change. Tax pages link the official source of their rates and state the date the figures apply to, and close with what the calculation leaves out. Passport and visa photo tools state the size and rules of the official specification they follow.
• Dated honestly.The “Updated” date on a tool page is taken from the project's history and only moves when that page's content or behaviour changes, not on every deploy. The changelog lists the new tools, features and fixes.

Corrections

If a result looks wrong or an explanation misses something important, write to support@zumatools.com with the page address and a small example with non-sensitive values. The contact pagesays what else helps us reproduce a problem. A confirmed mistake is fixed on the page itself, and the page's update date changes with it. Our content and corrections policy covers sources, dates, authorship and review in more detail.

Advertising and independence

The site is paid for by advertising. Ads are placed apart from a tool's controls and are labelled; no advertiser pays to be included in a tool, a result or an explanation, and you never need to click an ad to use a tool or download its result.