ASCII Code Lookup — Free Online Tool

Look up ASCII codes and convert characters to/from codes. ASCII Code Lookup is a free online tool from the ToolsRift Encoders & Decoders collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

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How to use ASCII Code Lookup

  1. Open the ASCII Code Lookup above — it loads instantly, no account needed.
  2. Enter or upload your input. Everything is processed locally on your device.
  3. Get your result immediately and copy or download it with one click.

Frequently asked questions

What is ASCII?

American Standard Code for Information Interchange — a 7-bit character encoding standard covering 128 characters (0–127).

What are control characters?

ASCII 0–31 are non-printable control characters like NUL (0), TAB (9), LF (10), CR (13).

What is extended ASCII?

Codes 128–255 are extended ASCII — varies by code page. This table shows standard 7-bit ASCII only.

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