Racira Developers

Zero-Width Character Inserter

Hide messages in zero-width chars.

Input
Output
Enter input to see results
Runs entirely in your browser. No data leaves your device.

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What is Zero Width Character Inserter

The Zero-Width Character Inserter adds invisible Unicode characters between visible characters of text. It supports three zero-width characters: ZWSP (U+200B, word break opportunity), ZWNJ (U+200C, non-joiner), and ZWJ (U+200D, joiner). These are used for digital watermarking, steganography, testing text rendering engines, and debugging bidirectional text issues.

How to Use Zero Width Character Inserter

  1. Step 1: Paste your input text into the textarea.
  2. Step 2: Configure the available options in the toolbar.
  3. Step 3: Click Transform to process the input.
  4. Step 4: The result appears in the output panel. Copy it using the copy button.

Why Use Zero Width Character Inserter

Zero Width Character Inserter saves time by automating a common security task that would otherwise require manual effort, custom scripts, or tooling setup. Running entirely in your browser, it processes data instantly without network latency, upload concerns, or account requirements. Your data stays completely private on your device.

Privacy & Security

This tool runs entirely in your browser — no data ever leaves your device. There is no server round-trip, no upload, no logging, and no account required. Your input is processed locally using client-side JavaScript and is never stored, transmitted, or accessible to anyone else. When you close the tab, everything disappears.

Frequently Asked Questions

How does Zero Width Character Inserter handle my data?

<p>The tool processes your input entirely in your browser using JavaScript. No data is sent to any server or stored beyond the current session. Everything is ephemeral.</p>

What input formats are accepted?

<p>The tool accepts text input pasted into the textarea. It processes the text and displays the result in the output panel.</p>

Is there a usage limit?

<p>No. The tool runs entirely in your browser with no rate limiting, quotas, or account requirements. Use it as often as needed.</p>