Editor for Windows

Cellmark Editor

A free Markdown editor for Windows with support for merged cells and multi-row headers.

Download for WindowsVersion 0.1.2 · 125 MB · Version list How to install

A download link will be added when the Microsoft Store version is available.

If GitHub is blocked, download from eurekax.co

If that doesn’t work either, contact us at contact@eurekax.co.

Cellmark Editor showing the same table with merged cells and two header rows in a PDF on the left, Markdown in the center, and Publish view on the right. — A sample document in Cellmark Editor

Free for everyoneFree for individuals, businesses, and public organizations, including use at work.

Your documents never leave your PC.Table recognition runs offline on your PC with our own AI, not an external LLM.

Table recognition by Eureka-Vision. Table representation in LTEM.Eureka-Vision is our document AI product family. LTEM is an independent open standard for complex tables, free for anyone to use.

01 · Capture a table

Turn a PDF table into a table you can edit

Capture a table on your screen. Offline AI on your PC recognizes merged cells and headers and converts it into an editable table.

Demo showing a captured PDF table converted into an editable table with merged cells and headers preserved. — Table recognition demo · Loops

02 · Edit a table

Edit tables as you would in a spreadsheet

Select cells to merge or split them, and add rows and columns directly in the table. No table syntax to learn.

Demo showing cells selected and merged directly in a table. — Cell merging demo · Loops

03 · View the document

One document, four views

Switch between Source, Split, Live, and Publish views in one click. Source shows the LTEM text; Publish shows how the document will look in print.

Demo switching the same document between Source, Split, Live, and Publish views. — View switching demo · Loops

04 · Print and export

Print and export

Export documents to PDF, HTML, or DOCX with table structure preserved.

Print preview of a document containing a table with merged cells.

Installation

Install Cellmark Editor

Download the installer Use the download button on this page to get Cellmark-Editor-Setup-<version>.exe.
Windows security notice You may see “Windows protected your PC” during installation. The installer uses a self-signed certificate in the name of EurekaAI Co., Ltd.
To continue installation, select “More info”, then “Run anyway”.
Verify the installer Compare the file's SHA-256 checksum and certificate fingerprint with those on the downloads page.

Install in an offline environment

Installers for recent versions are on the downloads page, and earlier versions are on GitHub. Transfer the installer to the offline environment to install it. Unmodified installers may be redistributed, including by your IT department.

Version list

Privacy

Your documents never leave your PC.

Cellmark Editor does not send your documents or usage data. To check for updates, it downloads a small information file from eurekax.co.