How long are uploaded files retained?

Files are temporary. Completed conversions are kept for up to 60 minutes by default, downloaded files are normally removed after about 10 minutes, and failed conversions after about 30 minutes. These times may be shortened by the server configuration. Download important results promptly because an expired conversion cannot be restored.

Why did a conversion fail or expire?

Common causes include an oversized file, unsupported or unsafe ZIP contents, invalid formulas or diagrams, a temporary service problem, or waiting too long before downloading the result. The page shows a readable error message. Correct invalid Markdown or ZIP contents before retrying; connection and server errors may require an administrator.

How long does a conversion normally take?

Short text-only documents usually finish quickly. Images, complex math, multiple Mermaid diagrams, citations, and long documents take longer. Keep the page open and watch the overall progress until the file is ready or an error message appears.

Can I generate a table of contents, list of figures, or list of tables?

The document navigation options can be enabled in the workspace. Identified and captioned figures and tables can participate in figure and table lists when the selected output and viewer support those fields. Update fields after opening a DOCX if the editor requests it.

What upload and ZIP safety limits are enforced?

Markdown and ZIP file sizes are checked before upload and again on the conversion server. ZIP packages are also checked for unsafe paths, too many files, unusual compression, excessive extracted size, unsupported contents, and insufficient storage space.

What should I do if progress appears stuck?

Do not submit the same document repeatedly. Keep the page open for a little longer. If an error or expiration message appears, follow that message, correct the Markdown or uploaded files, and start again. If the page reports a network or service connection problem, contact the site administrator.

Why can automatic numbering duplicate numbers already in my headings?

Word automatic numbering and text typed into a heading are separate. A heading written as "## 2. Background" can therefore display two numbers when numbering is enabled. Remove the typed number or disable automatic heading numbering; DocuCraftBox does not guess whether every numeric prefix is intentional content.

WEB-READY DOCUMENT

Markdown to HTML

Create a standalone HTML file directly in your browser, then open or share it anywhere.

Paste or upload Preview before export API-backed settings

HTML

DOCUMENT WORKFLOW

From source to delivery

01SourcePaste, .md, or ZIP

02ShapeTemplate and settings

03DeliverPreview, convert, download

HTML is generated locally in this browser; no conversion request is sent.

HTMLMarkdown to HTMLUntitled document

Workspace ready

SOURCE

Markdown

0

TEMPLATE

Sets the document style

LIVE PREVIEW

Clean Office

Visual reference only

This preview is the HTML document that will be downloaded, with local browser rendering applied.

AFTER YOU OPEN THE WORKSPACE

What to check before you download the file.

Build the HTML above, then check the structure, links, images, and downloaded file before publishing or sharing it.
Read the Markdown guide

QUICK START

Use the workspace in three steps.

01

Add your source

Paste Markdown, upload a .md or .markdown file, or upload a ZIP package. When a ZIP contains several Markdown files, choose the one to convert.

02

Set the document

Pick one of the four templates, adjust the supported settings, and watch the HTML reference preview update as you work.

03

Review and export

Check headings, tables, code, page flow, and metadata. Start the conversion and follow the progress panel until the file is ready.

PARAMETER GUIDE

Each group changes a different part of the file.

HTML applies the controls directly in this browser.

01

Document & appearance

Set the document metadata, accent color, fonts, body size, line height, and text alignment before export.

Title · Font · Accent · Spacing

02

Page & structure

Choose paper size, orientation, margins, cover, table of contents, heading numbering, bookmarks, and page breaks.

A4 / Letter · TOC · Page breaks

03

Tables, images & code

Control table headers, borders, repeated rows, image sizing, code theme, line numbers, and long-line wrapping where supported.

Tables · Images · Code · Mermaid

04

Math & citations

Use the supported controls for equation alignment, numbering, cross-references, citation style, and reference-page behavior.

Math · APA · MLA · GB/T 7714

05

Headers & page numbers

Add header or footer text and choose where page numbers start and appear in the generated file.

Header · Footer · Page number

COMMON QUESTIONS

Before downloading, check these details.

Is the downloaded HTML independent?

Yes. The downloaded file includes the document markup and a responsive stylesheet. Local images from a ZIP are embedded when the browser can read them; remote images still depend on their source URL.

What files can I upload?

You can paste Markdown or upload .md, .markdown, and .zip files. A ZIP can contain multiple Markdown files; select the entry you want before converting.

Why are some settings not visible on this page?

HTML keeps settings that affect web presentation and hides no-op export controls only when they cannot affect a browser document.

What should I check when HTML download fails?

Confirm that the source contains Markdown content and that the browser allows downloads. HTML generation is local and does not depend on the conversion API.

Can I change the document after choosing a template?

Yes. The source, template, and settings remain editable until you start the conversion. Use Reset to restore the example document and default settings.