Create something useful
A document you can come back to
Write a clear note, guide or small plan. Use real headings, lists and links, then keep an editable project and export a Word copy.
1. Start or reopen
JSON restores this workbench’s version 1 project. DOCX imports supported text and structure, not page layout. Tables, images, nested lists, comments, tracked changes, fields and other unsupported content are rejected, not silently removed. Keep your original. HTML is not an import format.
Practice first: download a fictional garden plan DOCX, then open that file above. Change the meeting time from 10 am to 11 am, save JSON and export Word. Reopen both saved copies and check the revised time. This sample contains no real personal information.
Review before replacing
Your current document will be replaced, including any edits you have not downloaded. Cancel keeps it unchanged. Editing the current document cancels this review.
2. Write with structure
Use Heading 1 for the document’s main heading, then Heading 2 and 3 in order. Use specific link text. Tab moves to controls and out of the editor; Ctrl/Cmd+B and I format selected text. Enter continues a list; Enter again on an empty item leaves it.
3. Keep and use your document
Reopen JSON here to keep all editor structure. Simple DOCX text can also reopen, with review; DOCX containing nested lists or other unsupported structures cannot. DOCX keeps the supported headings, lists, links, bold and italic for other document editors. HTML is a semantic readable copy. Neither export is a pixel-perfect Word preview or a guarantee of accessibility. Check the exported file in the app you will use. Word export runs in a local worker with a 30-second limit. Editing or opening another document cancels an in-progress Word export.
- Download the editable project and keep the previous version.
- Open a fresh tab, choose that JSON and review it before replacing.
- Revise a sentence, download again, and reopen the revised copy.
Optional: put the editable JSON in Keep & reopen alongside a manually exported Learn brief. Later, download the unchanged document from the bundle and review it here before opening. Keep DOCX and HTML separately. These plain files are not encrypted or automatically redacted; a bundle does not convert, synchronize or publish your work.
Ready. Start blank or try the fictional example.
What this focused tool does and does not do
Supported: paragraphs, heading levels 1–3, up to four nested list levels, HTTP/HTTPS links, bold, italic and line breaks. Maximum 100,000 text characters and 2,500 document nodes. Limits reduce accidental overload but cannot guarantee device performance.
No images, tables, pagination, templates, comments, tracked changes, collaboration, full-fidelity Word import, automatic backups or cloud storage. Links do not open in the editor. Exported links open only when the reader chooses them. A download request does not prove that a file was saved.
Editing uses ProseMirror. DOCX export uses docx. Bounded DOCX import uses fflate and sax in a cancellable local worker with a 10-second limit. Dependencies are bundled locally with their notices; there is no runtime CDN. Screen-reader and physical-phone testing remain separate; this is not an accessibility certification.
Download source (ZIP) · Dependency licences · Source and workflow notes
A focused document, with a way back
Write short documents locally with headings, lists and links. Save editable JSON to reopen and revise here; export DOCX for checking and further work in Word or LibreOffice Writer. Open a simple DOCX to convert its supported text and structure, review the loss warning, then explicitly replace current work. Fonts, colours, page layout and document metadata are not preserved. Tables, images, nested lists, comments, tracked changes and fields are rejected. Keep the original file; this does not replace a full word processor. You can also keep this editable JSON with a manually exported Learn brief in Keep & reopen. Choose Editable document JSON when adding the JSON. To continue, reopen the bundle, download its unchanged document file, return here and review it before explicitly replacing current work. DOCX and HTML remain separate exports, not bundle inputs. Bundles are unencrypted and keep the full source text and links; nothing transfers automatically.
Use Microsoft’s heading, list and meaningful-link guidance to check your writing. LibreOffice Writer can open and save DOCX; review the result in the app you will use. No price, feature-parity or pixel-perfect compatibility claim is made.