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Ascii to hexadecimal converter

World's simplest ascii tool
A simple browser-based utility that converts ASCII strings to hex numbers. Just paste your ASCII data in the input area and you will instantly get hexadecimal data in the output area. Fast, free, and without ads. Import ASCII – get hexadecimal. Created by computer nerds from team Browserling.
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Hexadecimal Options
Prepend 0x to all hex numbers.
Pad single digit hex numbers with a 0.
Inserting extra spaces between hex.

What is a ascii to hexadecimal converter?

learn more about this tool
This tool takes plain-text ASCII data as input and converts it to hexadecimal base. Hex numbers can be prefixed with "0x" base prefix and they can be separated by a space for better readability and they can be padded with a zero so that each hex number has two nybbles.

Ascii to hexadecimal converter examples

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Convert ASCII to Hexadecimal
In this example we convert plain ASCII characters to hexadecimal values. We also enable all three possible options for padding, prefixing and spacing output hex numbers.
Why do geeks always mix up Halloween and Christmas? Because Oct 31 is Dec 25.
0x57 0x68 0x79 0x20 0x64 0x6f 0x20 0x6e 0x65 0x72 0x64 0x73 0x20 0x61 0x6c 0x77 0x61 0x79 0x73 0x20 0x6d 0x69 0x78 0x20 0x75 0x70 0x20 0x48 0x61 0x6c 0x6c 0x6f 0x77 0x65 0x65 0x6e 0x20 0x61 0x6e 0x64 0x20 0x43 0x68 0x72 0x69 0x73 0x74 0x6d 0x61 0x73 0x3f 0x20 0x42 0x65 0x63 0x61 0x75 0x73 0x65 0x20 0x4f 0x63 0x74 0x20 0x33 0x31 0x20 0x69 0x73 0x20 0x44 0x65 0x63 0x20 0x32 0x35 0x2e
Required options
These options will be used automatically if you select this example.
Prepend 0x to all hex numbers.
Pad single digit hex numbers with a 0.
Inserting extra spaces between hex.
Create a Single Hex Number from ASCII
In this example we convert an ASCII string to a single, very large hexadecimal value.
Everything is a number.
45766572797468696e672069732061206e756d6265722e
Required options
These options will be used automatically if you select this example.
Prepend 0x to all hex numbers.
Pad single digit hex numbers with a 0.
Inserting extra spaces between hex.
Convert ASCII Art to Hex
In this example we convert ASCII art of a surprised moose to a hex number.
\|/ \|/ \ / \_/ ___ ___ o o-' ''' ' O -. |\ | |'''| | || | | || || " "
5c 7c 2f 20 20 20 20 5c 7c 2f 0a 20 20 5c 20 20 20 20 2f 0a 20 20 20 5c 5f 2f 20 20 5f 5f 5f 20 20 20 5f 5f 5f 0a 20 20 20 6f 20 6f 2d 27 20 20 20 27 27 27 20 20 20 27 0a 20 20 20 20 4f 20 2d 2e 20 20 20 20 20 20 20 20 20 7c 5c 0a 20 20 20 20 20 20 20 20 7c 20 7c 27 27 27 7c 20 7c 0a 20 20 20 20 20 20 20 20 20 7c 7c 20 20 20 7c 20 7c 0a 20 20 20 20 20 20 20 20 20 7c 7c 20 20 20 20 7c 7c 0a 20 20 20 20 20 20 20 20 20 22 20 20 20 20 20 22
Required options
These options will be used automatically if you select this example.
Prepend 0x to all hex numbers.
Pad single digit hex numbers with a 0.
Inserting extra spaces between hex.
Pro tips Master online ascii tools
You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
https://onlinetools.com/ascii/convert-ascii-to-hexadecimal?input=Why%20do%20geeks%20always%20mix%20up%20Halloween%20and%20Christmas%3F%20Because%20Oct%2031%20is%20Dec%2025.&prefix=true&padding=true&spacing=true
All ascii tools
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Convert ASCII to Binary
Quickly convert ASCII characters to binary numbers.
Convert Binary to ASCII
Quickly convert binary numbers to ASCII characters.
Convert ASCII to Octal
Quickly convert ASCII chars to octal values.
Convert Octal to ASCII
Quickly convert octal values to a ASCII chars.
Convert ASCII to Decimal
Quickly convert ASCII values to decimal numbers.
Convert Decimal to ASCII
Quickly convert decimal numbers to ASCII values.
Convert ASCII to Hexadecimal
Quickly convert ASCII symbols to hexadecimal values.
Convert Hexadecimal to ASCII
Quickly convert hexadecimal numbers to ASCII symbols.
Convert ASCII to Any Base
Quickly convert ASCII to arbitrary base numbers.
Convert Any Base to ASCII
Quickly convert numbers of arbitrary base to ASCII.
Draw an ASCII Table
Quickly draw a 7-bit or extended 8-bit ASCII table.
Generate ASCII Character Set
Quickly generate 7-bit or extended 8-bit ASCII symbols.
Generate Random ASCII
Quickly generate random ASCII characters.
Convert Text to ASCII Art
Quickly draw ASCII art from the given text input.
Convert ASCII to Image
Quickly create an image from ASCII text.
Convert ASCII to HTML Entities
Quickly convert ASCII text to HTML escape codes.
Convert HTML Entities to ASCII
Quickly convert HTML entities to ASCII text.
URL-encode ASCII
Quickly convert ASCII to URL-encoding.
URL-decode ASCII
Quickly convert URL-encoded ASCII back to ASCII.
Convert ASCII to Bytes
Quickly convert an ASCII string to raw bytes.
Convert Bytes to ASCII
Quickly convert raw bytes to an ASCII string.
Convert ASCII to UTF-8
Quickly convert ASCII bytes to UTF8 characters.
Convert UTF-8 to ASCII
Quickly convert UTF8 characters to ASCII bytes.
Convert ASCII to Morse Code
Quickly encode ASCII text to Morse code.
Convert Morse Code to ASCII
Quickly decode Morse code back to ASCII.
Convert ASCII to Base64
Quickly base64-encode ASCII string.
Convert Base64 to ASCII
Quickly base64-decode previously encoded ASCII string.
Convert ASCII to Data URI
Quickly convert ASCII to a Data URL.
Convert Data URI to ASCII
Quickly convert a Data URL to ASCII.
Convert ASCII to Lowercase
Quickly make all ASCII characters lowercase.
Convert ASCII to Uppercase
Quickly make all ASCII characters uppercase.
Randomize ASCII Case
Quickly randomize the case of each ASCII letter.
Flip ASCII Bits
Quickly flip one or more bits in every ASCII character.
Shuffle ASCII Bits
Quickly shuffle bits in every character of an ASCII string.
Convert ASCII to Unicode
Quickly convert ASCII data to Unicode symbols.
Convert Unicode to ASCII
Quickly convert Unicode symbols to ASCII data.
Validate ASCII
Quickly check if all input characters are ASCII.
Coming soon These ascii tools are on the way
ASCII Art Editor
Draw ASCII art in a neat browser-based editor.
ANSI Art Editor
Draw ANSI art in a neat browser-based editor.
Show NFO Files
Draw the contents of NFO files.
Convert ASCII to ANSI
Convert ASCII data to ANSI data.
Convert ANSI to ASCII
Convert ASCII data to ANSI data.
Convert ASCII to JPG
Create a JPG image from ASCII art.
Convert JPG to ASCII
Create ASCII art from a JPG image.
Convert ASCII to PNG
Create a PNG image from ASCII art.
Convert PNG to ASCII
Create ASCII art from a PNG image.
Convert ASCII to GIF
Create a GIF image (single frame) from ASCII art.
Convert GIF to ASCII
Create ASCII art from a GIF image.
Create an ASCII Animation
Create an animated GIF from multiple ASCII art frames.
Convert ASCII to Chemical Elements
Use chemical element names for ASCII values.
Convert ASCII to Scan Codes
Convert ASCII characters to scan codes.
Convert Scan Codes to ASCII
Convert scan codes to ASCII characters.
Convert ASCII to BCD
Convert ASCII code to BCD code.
Convert BCD to ASCII
Convert BCD code to ASCII code.
Convert ASCII to EBCDIC
Convert ASCII charset to EBCDIC charset.
Convert EBCDIC to ASCII
Convert EBCDIC charset to ASCII charset.
Convert ASCII to PETSCII
Convert ASCII data to PETSCII (CBM ASCII) data.
Convert PETSCII to ASCII
Convert PETSCII (CBM ASCII) text to ASCII text.
Convert ASCII to ATASCII
Convert ASCII data to ATASCII (ATARI ASCII) data.
Convert ATASCII to ASCII
Convert ATASCII (ATARI ASCII) data to ASCII data.
Rotate ASCII Characters
Rotate ASCII chars to the left or to the right.
Truncate ASCII Data
Make the input ASCII data shorter.
Slice ASCII Data
Extract a slice from ASCII data.
Clamp ASCII Data
Set upper and lower ASCII code bounds.
Randomize ASCII Order
Randomize the order of ASCII characters.
Reverse ASCII Characters
Reverse the order of ASCII chars.
Convert ASCII to Integer
Convert ASCII characters to integers.
Convert Integer to ASCII
Convert integers to ASCII values.
Convert ASCII to Keycodes
Convert ASCII characters to keyboard keycodes.
Convert Keycodes to ASCII
Convert keyboard keycodes to ASCII values.
Find ASCII Sum
Calculate the sum of individual ASCII code points.
Find ASCII Difference
Calculate the difference of individual ASCII code points.
Find ASCII Length
Calculate the length of an ASCII string.
Create a Table
Draw a table using ASCII characters as border elements.
Draw ASCII Tree
Draw a folder structure or a binary graph.
Draw ASCII Waves
Generate digital waveforms with ASCII characters.
Draw PETSCII Table
Draw a PETSCII (CBM ASCII) character set table.
Draw ATASCII Table
Draw an ATASCII (ATARI ASCII) character set table.
Draw an ASCII Spiral
Make all ASCII symbols go in a spiral.
Draw an ASCII Art Smiley
Draw various ASCII art smiley faces.
Debug ASCII Data
Visualize ASCII data at the byte and bit level.
AND ASCII Characters
Apply the AND operation on ASCII data.
OR ASCII Characters
Apply the OR operation on ASCII data.
XOR ASCII Characters
Apply the XOR operation on ASCII data.
NOT ASCII Characters
Apply the NOT operation on ASCII data.
Create ASCII from Regex
Generate ASCII data that matches the given regex.
Create Regex from ASCII
Generate a minimal regex that matches the given ASCII data.
Generate Fake ASCII
Use similar-looking Unicode characters for ASCII chars.
Add Errors to ASCII
Simulate data damage and add errors to ASCII data.
Add Typos to ASCII
Simulate keyboard typos and create errors in ASCII text.
Let Zalgo Damage ASCII
Unleash Zalgo on ASCII data.
Created with love by
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@browserling
We're Browserling — a friendly and fun cross-browser testing company powered by alien technology. At Browserling we love to make peoples' lives easier, so we created this collection of ASCII tools. Our tools have the simplest user interface that doesn't require advanced computer skills and they are used by millions of people every month. Our ASCII tools are actually powered by our web developer tools that we created over the last couple of years. Check them out!
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Privacy Policy we don't log data!
All conversions and calculations are done in your browser using JavaScript. We don't send a single bit about your input data to our servers. There is no server-side processing at all. We use Google Analytics and StatCounter for site usage analytics. Your IP address is saved on our web server for additional analytics. The free plan doesn't use cookies and don't store session information in cookies. The premium and team plans use cookies to store session information so that you are always logged in. We use your browser's local storage to save tools' input. It stays on your computer.
Terms of Service the legal stuff
By using Online Tools you agree to our Terms of Service. All tools are free for personal use but to use them for commercial purposes, you need to get a premium plan. You can't do illegal or shady things with our tools. We may block your access to tools, if we find out you're doing something bad. We're not liable for your actions and we offer no warranty. We may revise our terms at any time.