What does Remove Claude Whitespace do?

It cleans up text copied from Claude Code, AI assistants, or terminal output by removing line numbers, ANSI escape codes, box-drawing characters, leading indentation, and excessive blank lines — leaving you with clean, paste-ready code.

Is my code sent to a server?

No. All processing happens locally in your browser. Your code never leaves your device.

Yes — completely free, no signup, no ads in the working area, no limits.

Why is text from Claude Code so messy when I paste it?

Terminal-rendered output often includes line-number prefixes, ANSI color codes, Unicode box-drawing characters, and uneven indentation. When you copy these into a regular editor, the formatting comes along for the ride. This tool strips that noise.

Guide

The Claude Code copy-paste fix

If you copy a function out of Claude Code and paste it into your editor only to find broken indentation, line numbers, and stray bullets — this is the fix.

The five things Claude Code adds to your paste

Line numbers from the Read tool — 1\t, 2\t stuck to every line.
Tool-call bullets — ●, ⏺ at the start of certain lines.
Box-drawing frames — ─, │, ┌, ┐ around tool results.
Indent padding — 2 to 4 spaces on every line of code.
Soft-wrap line breaks — sentences split at your terminal width.

The 30-second fix

Copy from Claude Code as you normally would.
Paste into the cleaner on removeclaudewhitespace.com.
Click copy.
Paste into your editor or wherever else.

Why a regex isn't enough

You can write a regex to strip ^\s*\d+\t. You can write another for ANSI. You can write a third to collapse blank lines. The trouble is the transforms interact: removing line numbers changes the leading indent, which changes how indent normalisation works, which changes whether a line gets joined to its neighbour. Doing it as one composable pipeline — with each step toggleable — is much more reliable than a one-shot regex.

The case for client-side

Code from Claude Code often contains environment variables, API tokens, internal hostnames, or proprietary logic. Sending it to a third-party server to clean whitespace is overkill at best and a security policy violation at worst. The cleaner runs in your browser via plain JavaScript — open DevTools and watch the Network tab to confirm.

Common scenarios

Pasting back into your editor

Defaults handle this case: line numbers stripped, indent normalised, tool bullets removed. Drop the result into VS Code or your editor of choice — it lands flush.

Pasting into a Reddit post

The Markdown / Reddit toggle is on by default. It left-trims every line and rejoins soft-wrapped paragraph lines, so your post doesn't come out as a mess of broken sentences and inset paragraph fragments.

Sharing in Slack or Discord

Same as Reddit — Markdown / Reddit mode handles the wrap and indent issues. For code blocks specifically, wrap the cleaned output in triple backticks before pasting.

Pasting into a bug report or PR description

Turn off Indent if you want to preserve the original code structure. Otherwise the defaults are good.

Why Claude Code output pastes messy — the technical breakdown.
Strip ANSI escape codes online.
Remove line numbers from code.
Clean terminal output.