What's the difference between printable and full ASCII?

Printable ASCII includes characters 32-126 (space, letters, numbers, symbols). Full ASCII includes control characters (0-31, 127, 128-255).

How many characters can I generate per string?

You can generate strings from 1 to 1,000 characters each, with up to 10,000 strings per batch.

Random ASCII Character Generator

Generate random ASCII characters. Supports printable characters (32-126) or full ASCII range (0-255). Perfect for testing string processing and character encoding.

Press to Generate

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<iframe
  src="https://numbergenerator.ai/random-ascii/"
  title="Random ASCII Character Generator"
  width="100%"
  height="600"
  frameborder="0"
  style="border:1px solid #e5e7eb;border-radius:12px;"
  loading="lazy"
  allow="clipboard-write"
></iframe>

Paste this code into your website to embed the Random ASCII Character Generator tool. The iframe will automatically adapt to mobile screens.

About this tool

This tool uses a cryptographically secure pseudo-random number generator (CSPRNG) to ensure fairness and security.

Tip: press Space to generate again.

About Random ASCII Character Generator

Generate random ASCII characters. Supports printable characters (32-126) or full ASCII range (0-255). Perfect for testing string processing and character encoding.

How to Use Random ASCII Character Generator

1Choose printable or full range
2Set characters per string
3Choose how many strings
4Click 'Generate ASCII'

Features

Printable/full range
Custom string length
Batch generation
Encoding testing

Frequently Asked Questions

What's the difference between printable and full ASCII?: Printable ASCII includes characters 32-126 (space, letters, numbers, symbols). Full ASCII includes control characters (0-31, 127, 128-255).
How many characters can I generate per string?: You can generate strings from 1 to 1,000 characters each, with up to 10,000 strings per batch.

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Secure & Private

All generation happens locally in your browser using Web Crypto API (CSPRNG). Your data never leaves your device. No tracking, no storage, complete privacy.