Development components · Free and optional
Keep your work on your device.
These tools describe editing events and help you keep a signed record. They cannot prove who wrote something, and they do not issue an AI tag.
Try the offline editor
- Download the standalone editor.
- Open the downloaded HTML file in your browser. Choose Start and write your own test text.
- Pause, inspect your summary, or download it. Download your text is a separate choice.
- Reset and delete clears the editor and its measurements.
No account, server, tracking or automatic storage. Timing is off by default. Coarse measurements and hashes can still link information; share deliberately.
Keep an optional receipt
The open-source receipt tool binds your exact text file to its summary. You choose a local signing key. Verification checks the signature and artifact without contacting us.
It reports expiry and unchecked revocation separately. A signature is not proof of human authorship or an independent timestamp.
What has been checked
Actual Chromium and WebKit editor tests cover typing, revisions, exports, pause/reset, timing suppression and the path into offline receipts. Disposable-key tests cover Ed25519 and ECDSA P-256 signing, tampering, wrong keys and expiry. Automated accessibility checks found no violations on the tested editor.
Physical-phone and human accessibility review remain pending. PA, FA, HP, MT and IV are not released by these tools.
Measurement definitions and privacy limits · Timestamped scope and remaining jobs