How to use ASCII Chart

What it does

Browse a searchable ASCII reference table with decimal, hex, binary, and octal mappings. It runs entirely in your browser — your input never leaves your device.

Options

Every setting this tool exposes, straight from the code that validates it.

Worked example

Run these settings on the tool page:

No settings needed — paste your input and go.

You get:

{
  "rows": [
    {
      "code": 0,
      "char": "CTRL-0",
      "hex": "00",
      "bin": "00000000",
      "oct": "000"
    },
    {
      "code": 1,
      "char": "CTRL-1",
      "hex": "01",
      "bin": "00000001",
      "oct": "001"
    },
    {
      "code": 2,
      "char": "CTRL-2",
      "hex": "02",
      "bin": "00000010",
      "oct": "002"
    },
    {
      "code": 3,
      "char": "CTRL-3",
      "hex": "03",
      "bin": "00000011",
      "oct": "003"
    },
    {
      "code": 4,
      "char": "CTRL-4",
      "hex": "04",
      "bin": "00000100",
      "oct": "004"
    },
 
… (truncated)

Troubleshooting

• It is slow on very large input. Everything runs in your browser, so speed depends on your device. Very large inputs are best split up, or run through the API where the work happens on our servers.

Automating it

The same logic is available as a REST endpoint, so you can run it from a script, a CI job or your own app.

Bash
curl "https://api.toolsxpo.com/v1/ascii-chart" \
  -H "Authorization: Bearer $TOOLSXPO_KEY"

It costs 1 credit per successful call. See the full endpoint reference, or try it in the playground.

Related tools

• ASCII to Text
• Base32 Decode
• Base32 Encode
• Base64 Decode
• Base64 Encode
• Base64 Splitter