File ↔ C Byte Array Converter
Create a firmware byte array with configurable name and line width, or import one strict array initializer.
Settings & files
Conversion settings
Open files
Text input up to 200,000 characters; files up to 2 MiB; up to 10 files in a ZIP batch. Table converters allow 1,000 rows and 100 columns. For encoding, files are read as raw bytes. For decoding, open encoded text; GZIP decompression reads a compressed binary file.
Try the example, paste input or open a file to begin.
Imports one uint8_t/unsigned char array with decimal or 0x byte literals; comments are allowed. Expressions, multiple arrays and values outside 0–255 are rejected. Generated source needs stdint.h for uint8_t.
Conversion audit
File batch status
Saved comparisons · current tab
Using File ↔ C Byte Array Converter
Create a firmware byte array with configurable name and line width, or import one strict array initializer.
- Select the conversion direction or source and target units, then review the format-specific settings.
- Paste your input, try an editable example or open files. Choose Convert and inspect the preview and audit.
- Download the actual result, export an audit or report, or convert up to 10 files into a ZIP. Review any errors before using the output.
Example
Hello
Questions & answers
What can File ↔ C Byte Array Converter convert?
Create a firmware byte array with configurable name and line width, or import one strict array initializer.
Which format rules should I check?
Imports one uint8_t/unsigned char array with decimal or 0x byte literals; comments are allowed. Expressions, multiple arrays and values outside 0–255 are rejected. Generated source needs stdint.h for uint8_t.
Can I convert several files?
Yes. Open up to 10 files, select the settings and choose Convert files to ZIP. The status table identifies converted and failed files. The downloaded ZIP includes outputs and an audit; failures are not silently treated as successful.
How do I check the result?
Review the converted preview and audit before downloading. Check the stated format limitations, especially timing precision, omitted CSV columns and address metadata. Binary output downloads the actual bytes, not the hex preview.
What are the limits?
Text input up to 200,000 characters; files up to 2 MiB; up to 10 files in a ZIP batch. Table converters allow 1,000 rows and 100 columns.
Is input sent to a conversion service?
The conversion runs locally in a browser worker with bundled scripts. No conversion API is called. Copying and downloads happen only when you click their buttons. Saved comparisons stay in this tab and are cleared by reload. Ad-supported pages can load third-party scripts.
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