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Use this ASCII to binary converter to quickly turn any text, letters, or sentences into binary code. It’s a simple, browser-based text to binary calculator built for developers, testers, students, and anyone curious about how computers see text as 0s and 1s.
The ASCII Text to Binary Converter is an online utility that translates:
into their corresponding ASCII to binary code (a sequence of bits like 01001000 01101001).
Behind the scenes, each character is mapped to its ASCII value (a decimal number), and then that number is converted to binary. This is the core conversion of ASCII to binary that happens every time you type on a computer or send text over a network.
You can think of this page as:
All packed into one easy-to-use tool.
This tool is handy whenever you need to convert from text to binary or convert from ASCII to binary without memorizing lookup tables:
If you ever wished you had a quick letters in binary converter in your browser, this tool is for you.
Using the CodersTool ASCII converter to binary is straightforward:
This can be a single character, a line of code, or a full paragraph—anything you want to convert letters to binary online.
By default, you’ll typically use ASCII, but the tool also supports multiple encodings (Unicode, UTF-8, UTF-16, and more) via the Character encoding dropdown.
For a standard ASCII into binary conversion, select:
ASCII → for classic 7/8-bit ASCII textUnicode / UTF-8 if you’re working with extended charactersYou can control how the ASCII to binary code is separated:
01001000 0110100101001000,01101001This makes it easier to use the output in scripts, documentation, or debugging.
Hit Convert to convert from ASCII to binary instantly.
You’ll see the binary output appear in the result box. You can then:
In other words, this tool is your go-to words to binary converter online when you need fast, accurate results.
Suppose you want to convert from text to binary for the word Hi.
H → ASCII decimal 72 → binary 01001000i → ASCII decimal 105 → binary 01101001The final ASCII to binary code is:
Hi → 01001000 01101001
Instead of doing this manually for every character, the ASCII to binary converter does it for you in one click.
At a high level, converting ASCII to binary follows these steps:
A = 65, a = 97).65 in decimal → 01000001 in binary.In pseudocode / Python, it might look like this:
text = "Python"
binary_converted = " ".join(format(c, "08b") for c in bytearray(text, "ascii"))
print(binary_converted)
This is essentially what any ASCII into binary or text to binary calculator is doing behind the scenes—just automated and much faster.
If you already have binary and want to get back the original text, you don’t need to reverse it manually. Use CodersTool’s companion binary to ASCII calculator:
Paste your binary string, and it will decode it back to readable text. Together, these tools let you:
Perfect for round-trip testing, encoding/decoding exercises, or verifying system outputs.
If you’re working with different number systems or encodings, these tools pair nicely with the ASCII / binary converters:
These internal tools help you move smoothly between ASCII, binary, decimal, hex, and various encodings without leaving CodersTool.
If you ever need to do the math by hand:
01000001 for A).Or you can just use this ASCII to binary converter and let the tool handle it for you.
Yes. The tool works perfectly as a:
Type any letter (or string of letters), click Convert, and you’ll get the binary representation instantly.
Yes. The converter runs in your browser and is designed as a simple utility for developers and professionals. CodersTool positions itself as a free, world-class online tool for people learning and working with technology, including Developers, DevOps, Server Admins, and IT Professionals.
For highly sensitive data, you should still follow your organization’s security policies, but for everyday learning, testing, and encoding tasks, it’s a convenient option.
The CodersTool converter supports multiple encodings, so you can choose whether you want pure ASCII to binary code or a Unicode-based conversion.
Once this draft is in place, you can fine-tune it in Surfer SEO, adjust word count, and further optimize for your main keyword and related phrases.
UNIX is simple. It just takes a genius to understand its simplicity.
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