ASCII Converter
Convert between text and ASCII / Unicode code points.
- Reading time:
- 2 min
- Last updated:
- Price:
- Free, no signup
Type or paste text to see the result.
What the ASCII Converter does
Type 'ABC' and see '65 66 67' — the ASCII code behind every character. Paste codes back and the characters return. It works both ways, live, as you type.
Codes are shown in decimal by default, the form most tables and textbooks use.
Why the ASCII Converter is useful
ASCII codes come up constantly in programming: comparing characters, building ciphers, reading legacy data formats, or understanding what a keypress actually sends. A fast converter saves a trip to a reference table.
For students, seeing 'A = 65' happen live makes the idea of character encoding stick far better than a chart does.
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How to use the ASCII Converter
- 1
Type your text
Each character's code appears in order.
- 2
Or paste codes
Space-separated numbers convert back to characters.
- 3
Copy either direction
Take whichever form you need.
Key features
- Character-to-code and code-to-character
- Decimal ASCII values
- Live conversion both ways
- Handles the full printable ASCII range
Benefits
- No more hunting through reference tables
- Debug character-handling code quickly
- Learn encoding by experimenting
Real-life use cases
Debugging a cipher
A student building a Caesar cipher checks that 'A' plus 3 really lands on 'D' (68).
Reading a legacy file
A developer decodes a byte stream of ASCII values from an old data export.
Understanding keycodes
A hobbyist checks which codes a terminal program receives for each key.
Tips for the best results
- Uppercase and lowercase differ by 32: 'A' is 65, 'a' is 97.
- ASCII only covers English letters, digits and basic symbols — use the Binary Converter for full Unicode.
- Codes 0–31 are invisible control characters.
Conclusion
The fastest way to move between characters and their ASCII codes, in both directions.
Frequently asked questions
What is ASCII?
- A standard that assigns numbers 0–127 to English letters, digits and symbols.
What is the code for a space?
- 32.
Does it cover é or Arabic letters?
- No — those are beyond ASCII; use a Unicode-aware tool instead.
Can I convert a whole sentence?
- Yes, every character gets its code in sequence.
Decimal or hex?
- Decimal is shown; use Decimal to Hex if you need hexadecimal.
Is it private?
- Yes, everything runs locally.
Related tools you may need
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- Text to Binary Converter — Convert text into 8-bit binary sequences.
- Timestamp Converter — Convert Unix timestamps to human-readable dates and back.
- Hex to Text Converter — Decode hexadecimal bytes into readable text.
- Decimal to Hex Converter — Convert decimal numbers to hexadecimal.
- Text to Hex Converter — Encode text as hexadecimal bytes.
- Octal to Decimal Converter — Convert octal (base-8) numbers to decimal.
Keep exploring
Browse the full tools directory, filter by category, or read guides on the Text Tools Hub blog.