About COBOL-CASE Converter
Transform any text into COBOL-CASE format - the traditional naming convention for COBOL programming, mainframe systems, and legacy enterprise applications. Perfect for COBOL variable names, data structures, procedure names, and system identifiers.
COBOL-CASE uses ALL UPPERCASE letters with hyphens separating words, creating highly visible, readable identifiers that follow COBOL traditions dating back to 1959.
How to Use the COBOL-CASE Converter
- Type or paste your text into the input box
- Optional: Enable “Preserve lines” to convert each line separately (perfect for batch conversion)
- Click “Convert to COBOL-CASE” button
- Copy or download your formatted text
The tool works offline after the first load and converts instantly!
What is COBOL-CASE?
COBOL-CASE (also known as SCREAMING-KEBAB-CASE or UPPER-KEBAB-CASE) is a naming convention where:
- All letters are UPPERCASE
- Words are separated by hyphens (-)
- No spaces, underscores, or special characters
Example: user profile data → USER-PROFILE-DATA
Why COBOL? COBOL (COmmon Business-Oriented Language) has used this style since 1959. The uppercase ensures readability on mainframe terminals and line printers, while hyphens improve word separation without using spaces (which are significant in COBOL syntax).
Examples
Basic Conversions
Before: User Profile Data
After: USER-PROFILE-DATA
Before: customer account number
After: CUSTOMER-ACCOUNT-NUMBER
Before: employeeFirstName
After: EMPLOYEE-FIRST-NAME
Before: total_sales_amount
After: TOTAL-SALES-AMOUNT
Batch Conversion (Preserve Lines Enabled)
Before:
Customer Number
Account Balance
Transaction DateAfter:
CUSTOMER-NUMBER
ACCOUNT-BALANCE
TRANSACTION-DATEKey Features
✅ Instant Conversion - Click button and text converts immediately
✅ Preserve Lines Option - Convert multiple lines independently
✅ Smart Detection - Converts from camelCase, snake_case, kebab-case
✅ Copy & Download - Export as .txt or copy in one click
✅ 100% Private - All processing happens in your browser
✅ Works Offline - Functions without internet after initial load
COBOL-CASE vs Other Naming Conventions
| Convention | Example | Separator | Case | Common Usage |
|---|---|---|---|---|
| COBOL-CASE | USER-PROFILE-DATA | Hyphens (-) | UPPERCASE | COBOL, mainframes, legacy |
| CONSTANT_CASE | USER_PROFILE_DATA | Underscores (_) | UPPERCASE | Constants, env variables |
| kebab-case | user-profile-data | Hyphens (-) | lowercase | URLs, CSS, HTML attributes |
| TRAIN-CASE | User-Profile-Data | Hyphens (-) | Title | HTTP headers |
| snake_case | user_profile_data | Underscores (_) | lowercase | Python, databases |
| camelCase | userProfileData | Capital letters | mixed | JavaScript, Java variables |
Key Identifier: COBOL-CASE uses hyphens and is ALL UPPERCASE.
COBOL Programming Usage
COBOL-CASE is the standard convention for:
Variable and Data Names
01 CUSTOMER-RECORD.
05 CUSTOMER-NUMBER PIC 9(10).
05 CUSTOMER-NAME PIC X(50).
05 ACCOUNT-BALANCE PIC 9(7)V99.
05 LAST-TRANSACTION-DATE PIC 9(8).Procedure Names
MAIN-PROCESSING.
PERFORM INITIALIZE-PROGRAM.
PERFORM READ-CUSTOMER-FILE.
PERFORM PROCESS-TRANSACTIONS.
STOP RUN.File Descriptions
SELECT CUSTOMER-MASTER-FILE
ASSIGN TO CUSTMAST
FILE STATUS IS FILE-STATUS-CODE.Why COBOL Uses This Convention
Historical Reasons (1950s-1960s):
- Mainframe terminals displayed only uppercase characters
- Line printers were easier to read in uppercase
- Punched cards were more legible with uppercase
- Limited character sets on early systems
- Hyphens provided word separation without spaces (which were significant in COBOL syntax)
Language Design: COBOL was designed to be readable by business managers, not just programmers. The language emphasizes natural language syntax like ADD 1 TO RECORD-COUNT.
Modern Usage
Despite COBOL’s age (65+ years!), it’s still widely used:
- Banking & Finance: 95% of ATM transactions, 80% of in-person transactions
- Government: Social Security, Medicare, IRS systems
- Insurance: Policy management, claims processing
- Statistics: 220 billion+ lines of COBOL in production, $3 trillion+ in daily commerce
Best Practices
Effective COBOL-CASE Naming
✅ Be descriptive and business-oriented
Good: CUSTOMER-ACCOUNT-BALANCE
Bad: CAB, X123
✅ Use standard business terminology
Good: EMPLOYEE-SALARY, ORDER-QUANTITY
Bad: EMP-PAY, ORD-QTY (avoid excessive abbreviation)
✅ Keep names under 30 characters (COBOL standard limit)
Good: EMPLOYEE-YEAR-TO-DATE-EARNINGS (30 chars)
Too long: EMPLOYEE-TOTAL-YEAR-TO-DATE-GROSS-EARNINGS (exceeds limit)
✅ Use standard prefixes
- Work fields:
WORK-AMOUNT,WORK-DATE - Flags:
END-OF-FILE-FLAG,ERROR-FOUND-FLAG - Counters:
RECORD-COUNT,TOTAL-AMOUNT
Frequently Asked Questions
Why is COBOL-CASE all uppercase?
Historical and technical reasons:
- Early terminals (1960s-1970s) displayed only uppercase
- Punched cards were easier to read in uppercase
- Line printers produced more legible output in uppercase
- Limited character sets initially supported only uppercase
Modern benefit: Uppercase makes COBOL-CASE stand out in mixed-language systems.
Is COBOL-CASE the same as SCREAMING-KEBAB-CASE?
Yes! They’re the same format. COBOL-CASE is the traditional name in mainframe contexts, while SCREAMING-KEBAB-CASE is the modern programming community’s name. Both mean: UPPERCASE words separated by hyphens.
Can I use underscores instead of hyphens in COBOL?
No! COBOL does not allow underscores in data names. This is a fundamental COBOL rule:
❌ Invalid: CUSTOMER_ACCOUNT_NUMBER
✅ Valid: CUSTOMER-ACCOUNT-NUMBERHyphens are the only way to separate words in COBOL identifiers.
What’s the character limit for COBOL variable names?
30 characters in COBOL-85 and later standards. Plan your naming hierarchy carefully to stay within limits while maintaining readability.
Should I use COBOL-CASE for modern web development?
Generally no, unless you’re:
- Interfacing with COBOL systems (maintain naming consistency)
- Migrating COBOL applications (preserve original naming)
- Documenting legacy systems (match source code exactly)
For modern web development, use kebab-case for URLs, camelCase for JavaScript, and CONSTANT_CASE for constants.
How does COBOL-CASE handle numbers?
Numbers are allowed but cannot be the first character:
✅ Valid: ADDRESS-LINE-1, YEAR-2024-BUDGET
❌ Invalid: 2024-BUDGET (starts with number)Can COBOL-CASE include special characters?
Very limited! COBOL data names can only contain:
- Letters (A-Z)
- Numbers (0-9, not as first character)
- Hyphens (-, not as first or last character)
Everything else (@ # $ . _ etc.) is forbidden.
Is COBOL still relevant in 2025?
Absolutely! COBOL runs:
- 95% of ATM transactions
- 80% of in-person financial transactions
- 43% of banking systems
- Major government, insurance, and airline systems
Market reality: 220 billion+ lines of COBOL in production, $3 trillion+ daily commerce processed, growing demand for COBOL developers due to aging workforce.
How do I convert between COBOL-CASE and other formats?
Use our related converters:
- COBOL-CASE → kebab-case: kebab-case Converter
- COBOL-CASE → camelCase: camelCase Converter
- COBOL-CASE → snake_case: snake_case Converter
Is my text data private?
Absolutely! All conversion happens in your browser using JavaScript. We never send your text to servers, store it, or transmit it anywhere. Your data remains completely private.