DelimixxFeatures
The Delimixx prototype is the full CSV / TSV editor. Delimixx Pro adds tools for heavier data work. Items with a — in the Prototype column need a Pro license; they are planned for the full release and are not in the prototype.
Your file, untouched
Byte-for-byte saving
Open and save without editing, and the file is written back unchanged (with the default save settings). After an edit, encoding, BOM, line endings and the final newline are kept (exceptions: see the FAQ), and values are not converted.
Sidecar file
Colors, column widths, and hidden rows and columns go into <file>.cvdeco next to the CSV. You can turn the sidecar off in the settings.
Backup before saving
A backup goes into a .delimixx-backups folder next to the file (5 generations by default), or into one central folder you choose. Old backups can be deleted automatically after 7 to 365 days; the newest is always kept.
External changes
Delimixx notices when another program changes the open file, and can reload it like tail. Read-only mode protects files you only want to look at.
SHA-256 display
Show the SHA-256 hash of a file to check that it has not changed.
Reading all kinds of files
- Encodings: UTF-8 (with or without BOM), UTF-16, Shift-JIS, EUC-JP, JIS (ISO-2022-JP), GBK, GB18030, Big5, EUC-KR. Automatic detection, and "reopen with encoding".
- Delimiters: comma, tab, semicolon and pipe, detected automatically or chosen by hand.
- Quote settings on save.
- Multiple files in tabs (up to 20 files (tabs) open at a time). Drag files onto the window to open them.
- Structure check: finds rows whose number of columns does not match; Rainbow column colors show where the columns drift.
- The whole file is loaded into memory. Before opening a very large file, Delimixx estimates the memory needed and asks you to confirm.
Editing
- Cell editing, insert and delete rows, cut / copy / paste, undo and redo (100 steps by default; 20 to 1,000 in the settings).
- Spreadsheet-style quick-entry shortcuts, simple in-cell formulas, cell autocomplete from the same column.
- Drag the fill handle to fill a value or a series (numbers, dates, times, weekdays, month names (also the old Japanese month names), quarters, the Japanese zodiac and stem calendars, and text with a number such as item1, item2) (autofill). You can extend up and left as well as down and right, and double-clicking the handle fills down to the end of the data. The grid scrolls at the edge, the cell count is shown while you drag, and Delimixx asks before a large fill overwrites data. Paste transposed (swap rows and columns).
- Find and replace; sort by one column; filter by one column.
- Text normalization: trim, whitespace, control characters, full-width / half-width, letter case.
- Split view, freeze rows and columns, hide and unhide, header row toggle, zoom from 50% to 200%.
- Command palette with fuzzy search; keyboard shortcut remapping and presets.
- Appearance: automatic, light or dark; interface text in three sizes; an accent color (six presets or any colour); limits for tab width, and tabs in several rows.
- Each feature opens from an item in the side panel on the right, and its tools appear in the side tool panel.
Prototype and Pro at a glance
| Feature | Prototype | Pro |
|---|---|---|
| Safe saving, backups, encodings, delimiters, sidecar file | ✓ | ✓ |
| Grid editing, undo / redo, formulas, autofill (values and series), autocomplete, paste transposed | ✓ | ✓ |
| Find and replace, one-column sort, one-column filter, text normalization, structure check | ✓ | ✓ |
| Tabs, split view, freeze, hide, Rainbow columns, command palette, shortcut remapping, toolbar and menu item settings | ✓ | ✓ |
| Multi-condition sort; filters on several columns | — | ✓ |
| Regular expressions in find / replace and filters | — | ✓ |
| Duplicate row detection and removal; split and merge columns | — | ✓ |
| Conditional highlighting (numeric, text, regex rules) | — | ✓ |
| Validation rules: value lists, numeric / date ranges, regex, required fields | — | ✓ |
| Compare files: row by row and cell by cell, side-by-side window, copy differences either way | — | ✓ |
| Search all open tabs | — | ✓ |
| Real-time editing mode (edits are written to the file as you go) | — | ✓ |
| Masking export: full, partial or hashed values, written to a separate file. Masking does not guarantee anonymity; check the output before you share it. | — | ✓ |
| Export to Markdown, HTML and JSON | — | ✓ |
| Cell comments (stored in the sidecar file) | — | ✓ |
| Flash fill, multi-cell editing, random password generator | — | ✓ |
| Record view (one row as a form) | — | ✓ |
| Change history / audit log (off by default) | — | ✓ |
| Detailed colors, fonts, grid lines and theme files; external tool launching | — | ✓ |
| Value counts: count the values in a column and copy the result as a table | — | ✓ |
The prototype does not show Pro features on screen; this list tells you what Pro adds. This list can change before the full release; the Pricing page and the Changelog show what is available today.
Privacy and trust
- Your files and how you use Delimixx are not sent anywhere, and there is no telemetry. The prototype makes no connection unless you turn on the update check or press Check for updates. Details, including the connections Pro adds, are in the Privacy Policy.
- Error messages end with a stable code, and the regular log never contains file names or cell content (the optional detailed log, started with
--debug, may include file names, so check it before you post it). See Error codes.
Languages and platform
- English and Japanese interface. It starts in English; switch to 日本語 on the welcome notice or in the settings, and your choice is remembered. Logs are in English; error messages follow the interface language.
- Windows 11 (64-bit, x86-64). There are no macOS or Linux builds.