1
No document content leaves the machine.
The tools are static pages and local command-line programs. There is no document upload, no account, and no telemetry on content. The hosted site measures only cookie-free aggregate page traffic, as disclosed in the privacy policy.
Check: Open unpaper.ai, disconnect the network, and use both tools. They work with the Wi-Fi off.
2
No AI inside — model neutrality by construction.
unPaper contains no model and calls no AI API. It gives your AI a strict format plus instructions, and deterministically converts the result. Change vendors, use a European model, run one locally: the tools neither know nor care.
Check: The format works pasted into any current assistant — including open-weight models.
3
An open standard, not a black box.
The file format (unPaper HTML) is publicly specified with conformance levels, a free validator, and an open pattern library. Documents are ordinary HTML that any browser on Earth renders — today and in forty years. PowerPoint is an export, not the source of truth.
Check: The spec at /spec, the validator at /check, and the public repository.
4
Measured, not promised.
Conversion fidelity is scored by a harness; model output quality is scored on a published rubric. When we say a weaker or local model produces frontier-grade documents under this contract, that is a measurement you can reproduce.
Check: Every public number traces to a published test artifact.
Pilot it — the legal review is one sentence.
We ask nothing but use. The hosted tools are free, no login exists, and no document content is transmitted. We are interested in feedback from real institutional workflows — briefing notes, status reports, decks.
hello@unpaper.aiunPaper is built and stewarded by reHeritage GmbH, Berlin (HRB 254687 B) — a European company maintaining the open standard and offering commercial licences for embedding, enterprise deployment (including air-gapped), and supported rollout with your company template, for organizations that need them. Use stays free — including commercial use; the format and the validator are free and stay free.