EBCDIC to ASCII Converter - Mainframe Text Decoder

Convert EBCDIC encoded text to ASCII. Decode IBM mainframe data files. In-browser processing, handles multiple codepages.

EBCDIC Input

Codepage

Input Format

ASCII Output

Hex View EBCDIC → ASCII comparison

Convert data to see hex comparison

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Frequently Asked Questions

EBCDIC (Extended Binary Coded Decimal Interchange Code) is IBM's character encoding from 1963. Still used on mainframes (z/OS, AS/400) and legacy systems.

IBM mainframes running COBOL and other legacy applications use EBCDIC internally. Banks, insurance, and government systems often have EBCDIC data.

EBCDIC 037 (US/Canada), EBCDIC 500 (International), EBCDIC 1047 (Latin-1 Open Systems). Select the appropriate codepage for your data.

Yes. All processing happens locally in your browser. Your data never leaves your device, ensuring complete privacy for sensitive mainframe extracts.

Download from mainframe via FTP binary mode, receive from EDI partners, or extract from legacy system backups. Files should not be converted during transfer.

This tool converts character data only. Packed decimal (COMP-3) and binary fields need COBOL copybook interpretation for proper conversion.

This tool is EBCDIC to ASCII only. For the reverse conversion, use mainframe utilities or specialized file transfer tools.

Different EBCDIC codepages map characters differently. EBCDIC 037 is common in US, 500 in Europe. Using the wrong codepage corrupts special characters.

EBCDIC files are often fixed-width. After conversion, the column positions are preserved. Use the record length option if known.

Non-printable EBCDIC bytes are converted to their closest ASCII equivalent or shown as placeholder. Use hex view for detailed analysis.

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