Some files can only be named by opening them.

Nobody sets out to have four hundred files with meaningless names. It arrives four ways, and it is almost always one of these four:

• Scanner output. A multifunction printer names by date and counter — SCN_20260814_0093.pdf. Accurate, and useless. Nothing in that name says which of the ninety-three it is.
• Document portal exports. A records system, a case management tool, a benefits portal. You ask for everything and receive a zip named by internal record id. The ids are real; they just are not yours.
• Recorded footage. Camera and recorder exports are named by device and timestamp — CAM04_20260814_141233.mp4 — hundreds of files, none of which say what is on them. This is the hardest version of the problem, because you cannot even glance at a video. Somebody has to sit and watch it, and whatever they work out has to be written down before it is lost.
• A naming standard arriving late. A folder that grew for six years under nobody's convention, and now has to match one.

There are good free bulk renamers, and they all work the same way: they match a pattern. Find and replace, a regular expression, a prefix, a suffix, sequential numbering. Every one of them turns the name you already have into a different name.

That works when the information is in the filename. It cannot work when the information is in the file. A hex-named scan has no pattern to match on, and no amount of regular expression skill will recover a name that was never written down. Somebody has to open it and look.

Formexium's job is not renaming. It is sorting files whose correct name depends on their contents — and then doing the renaming as a consequence.

1. Import a folder. Drag it in, or pick it. Images, PDFs, text, audio and video.
2. Look at the first file. It opens in the window — the page renders, the video plays. You are reading it, not guessing at it.
3. Name it. Type the label once — invoice, lease-signed, no-activity — and it becomes a button. Every file after that is one click.
4. Skip what you cannot decide. A skipped file stays skipped and stays reachable. It does not quietly count as done.
5. Export. You get a zip of renamed copies. Your originals are never altered, moved, or written over.

Copies, not edits, is deliberate. A renaming tool that changes the only version of a file is one misclick away from an incident. Formexium reads your files and hands you new ones.

The people who have this problem most often are the people least able to fix it. Records staff, clinic admin, legal support, back office — the roles that receive scanner output and camera exports for a living are the same roles issued a machine they cannot install software on.

Every desktop renamer assumes an installer and a permission dialog. Every self-hosted labeling tool assumes Python, or Docker, or a spare port and eight gigabytes of RAM. On a managed machine those are not inconveniences, they are walls.

Formexium is a web page. There is nothing to install, so there is nothing to approve, and nothing to reinstall on the next machine — a replacement laptop, a borrowed desk, a contractor on their first morning, a rebuild after a failure. You open it and start.