Create a File from Hex Bytes
Convert bytes in hex form to a file with any extension. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Create a File from Hex Bytes
- 1. Paste the hex bytes. Enter the raw hex byte sequence that should become the file's contents, separated by spaces the way a hex editor typically displays them.
- 2. Set the File extension. Type the extension the downloaded file should carry, such as bin, dat or a specific format's extension, so it opens correctly in the right application.
- 3. Download the generated file. Click download to save a file whose bytes exactly match what you entered. Use it to recreate a binary artifact from a hex listing.
When to use Create a File from Hex Bytes
Create a File from Hex Bytes writes raw bytes, specified as hex, directly into a downloadable file with the extension you choose. It runs entirely in your browser and suits any situation where you have a byte-exact hex listing and need it back as an actual file.
- Reconstructing a file from a hex dump. A support ticket or forum post includes a hex dump of a small corrupted or missing file, and you want to rebuild the original bytes into a usable file.
- Crafting a minimal test file for a parser. You are testing a file format parser and need a tiny file with an exact, hand-crafted byte sequence to trigger a specific edge case.
- Recreating a firmware or memory image sample. You have a short byte sequence documented in hex from a hardware datasheet and want to save it as a binary file to feed into a flashing or analysis tool.
Examples
Bytes to file
Input
48 49
About the Create a File from Hex Bytes tool
Create a File from Hex Bytes does its work locally, right in the browser. Convert bytes in hex form to a file with any extension. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the Hex Tools collection on EditSafely, a set of 108 small, focused Hex utilities that share the same instant, private workspace.
You can shape the output with the File extension setting, and the result refreshes the moment you change it. The finished file is put together in browser memory and saved with the Download button, so it never touches a server on the way to your disk. A worked example further down the page shows exactly what the tool produces for a real input.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Is Create a File from Hex Bytes free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I save the output?
Click the Download button once the result is ready. The file is built in your browser's memory and handed straight to your downloads folder, without passing through a server.