CSV editor

Preview

Choose a ready-made template for a single cleaning or open “Batch-replacement” to assemble a chain of templates like blocks.

Template

In the "Find" field, you can use JavaScript RegExp or switch RegExp off and search for plain text only. Flags: g — all matches, i — case-insensitive, m — multi-line mode. An empty replacement deletes the match.

Template

Name

FindMatch case

Replace with

Done.

About Editor

Free and Secure Online CSV Editor with Table Preview

Replitor is a practical online CSV editor for reviewing, cleaning, and editing tabular data directly in your browser. Paste CSV content into the source editor and instantly see an automatically generated table preview, making it easier to check rows, columns, values, and structure before applying changes.

The editor combines source editing, live table preview, Batch Replace, RegExp search, reusable cleanup chains, quick replace buttons, optional change history, and local snapshot recovery. It is built for everyday CSV cleanup tasks where you need a clear view of the raw data and the generated table at the same time.

CSV Editor Online Table Preview Free and Secure RegExp Replace Local Processing

What’s already built in

Edit CSV, HTML, and plain text in a browser-based source view with line numbers, wrap control, and quick text sizing.
Use the preview panel to see your CSV content as a readable table generated automatically from the current data.
Review rows, columns, and cell values visually while keeping the original CSV source available for precise editing.
Create reusable cleanup chains for multi-step formatting, structured replacements, and repeatable CSV editing workflows.
Run Find & Replace with plain text or RegExp patterns to clean exported tables, copied spreadsheet data, product feeds, and large text files.
Save custom templates and quick replace buttons for common CSV, HTML, or text cleanup actions.
Keep temporary work safer with local snapshots and optional session-based history for the current browser tab.

Why it’s easy to use

A good CSV editor online should make tabular data easy to inspect without forcing you to open a spreadsheet application. Replitor lets you paste CSV content, edit the raw source, run precise replacements, and immediately check the generated table preview side by side.

This is useful for exported reports, product lists, CMS data, AI-generated tables, copied spreadsheet rows, contact lists, catalog updates, and messy delimiter-based content. You can clean the data once, save the pattern, and reuse the same workflow when similar CSV content appears again.

Free, Secure, and Local

Replitor is designed as a free and secure online CSV editor with table preview that works on the user’s device. Your CSV data, HTML, custom templates, quick replace buttons, and current snapshot are processed locally and are not sent to the server for editing.

Persistent user data stays in localStorage, while temporary history and current-tab recovery data stay in sessionStorage. This keeps everyday editing convenient while giving you more control over private drafts, exported tables, structured text, and reusable cleanup workflows.

The project is developed step by step, with current work focused on better performance for large documents, clearer table previews, safer preview editing, and more practical editor modes built around the same simple interface.