Staaarter

CSV Zalgo Remover

Strips Unicode Zalgo combining diacritical marks back out of every cell in a CSV, cell by cell, undoing CSV Zalgo Corruptor (or any other source of stacked combining marks) and restoring clean, readable text while leaving delimiters and row structure untouched. A free online tool from Staaarter, right in your browser.

Runs locallyUpdated 2026-07-29
By Staaarter Team
csvcleanupzalgo

Overview

Introduction

Zalgo-corrupted text is fun until you need the CSV readable again, whether it was corrupted deliberately with CSV Zalgo Corruptor, or picked up combining marks from some other source.

CSV Zalgo Remover strips those combining marks back out, cell by cell, restoring clean, plain text throughout the CSV.

What Is CSV Zalgo Remover?

A per-cell cleanup tool that removes every character in the Unicode Combining Diacritical Marks block (U+0300-U+036F) from a CSV's cell values.

It's the direct counterpart to CSV Zalgo Corruptor, and uses the same combining-mark detection logic adapted from this site's `string` category Zalgo Text Remover.

How CSV Zalgo Remover Works

The CSV is parsed into a grid, and every cell's text has a single regex applied (`/[\u0300-\u036F]/g`) to strip out any combining diacritical marks found, leaving the base characters intact.

The cleaned grid is re-serialized with the same RFC 4180-aware writer used across this category, so structure and quoting remain correct.

When To Use CSV Zalgo Remover

Use this to undo CSV Zalgo Corruptor and get back clean, readable cell text.

It's also useful any time a CSV's cell values have picked up stray combining marks from another source, a copy-paste from a stylized font generator, for example, and you need plain, clean text back.

Often used alongside CSV Zalgo Corruptor and CSV Censor.

Features

Advantages

  • Simple, fast, and fully deterministic, the same regex strip every time, no ambiguity about what counts as "corrupted".
  • Leaves delimiters, quoting, and row structure completely untouched, only cell text is affected.
  • Works on combining marks from any source, not just this category's own Zalgo Corruptor.

Limitations

  • Only strips the standard combining diacritical marks block; other, less common "glitch text" techniques using different Unicode ranges wouldn't be caught by this specific pattern.
  • Can't restore anything beyond removing combining marks, if the base characters themselves were altered by some other process, this tool won't fix that.

Examples

Cleaning a corrupted CSV

Input

i̷̢d̶̛,n̸͎a͈m̷͙e̴̮
1̵̭,A̶̪d̷͇a̸͎

Output

id,name
1,Ada

Every combining mark is stripped from each cell, leaving the plain base characters and fully restoring the original readable CSV.

Best Practices & Notes

Best Practices

  • Run this whenever you need to hand off Zalgo-corrupted CSV data to a system or person that needs plain, readable text.
  • Use CSV Viewer afterward to visually confirm the cleanup worked as expected.
  • If cleanup doesn't seem to fully restore readability, check whether a non-standard combining-mark range was used to corrupt the text in the first place.

Developer Notes

Uses the identical `/[\u0300-\u036F]/g` pattern as the `string` category's Zalgo Text Remover, applied per-cell via `cell.replace(...)` rather than to the whole file at once, so removal never accidentally spans across a delimiter or quote boundary.

CSV Zalgo Remover Use Cases

  • Restoring clean, readable text after using CSV Zalgo Corruptor for a demo or fun effect
  • Cleaning up CSV data that picked up stray combining marks from a copy-pasted stylized-text source
  • Verifying a CSV parser or downstream system handles combining-mark cleanup correctly

Common Mistakes

  • Expecting this to fix any kind of "weird text", it specifically targets the standard combining diacritical marks Unicode block, not every possible text-corruption technique.
  • Running it on already-clean CSV data expecting a visible change, cells with no combining marks are simply left unchanged.

Tips

  • Pair directly with CSV Zalgo Corruptor to demonstrate a full corrupt-then-clean round trip.
  • If text still looks off after cleanup, the underlying characters themselves (not combining marks) may have been altered by a different process.

References

Frequently Asked Questions