How to open a code or text file online
Three steps, a few seconds, no software.
Open your .DDL file
Drop it on the box, choose it from your device, or paste the text straight in.
View it instantly
Your .DDL file opens neatly formatted with line numbers.
Search, copy or download
Search the text, jump to any line, then copy what you need or download a clean copy.
What is a .DDL file?
Plain text that programs, servers and people write every day.
A DDL file is a plain-text SQL script that contains Data Definition Language statements such as CREATE TABLE, ALTER TABLE, and DROP TABLE. Open it in any text editor or SQL editor like VS Code or DBeaver. It is functionally identical to a .sql file; the extension is a naming convention.
Programs that open .DDL files
| Full name | SQL Data Definition Language Script |
|---|---|
| Developer | N/A (DDL is a category of the SQL standard, ISO/IEC 9075) |
| First released | SQL DDL concepts introduced with SQL-86 (ISO/IEC 9075:1987); .ddl extension is a convention, not a standard |
| Category | Text & Code |
| MIME type | application/sql |
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Frequently asked questions
Is my .DDL file uploaded anywhere?
No. The file is read and highlighted for you.
Why do some characters look wrong (é, ł)?
That usually means the file was saved in one encoding and opened in another. We detect UTF-8, UTF-16 and the Windows-1250/1252 code pages automatically and show which one was used.
Can it handle huge log files?
Yes, up to 50 MB. Only the lines on screen are drawn, so scrolling stays smooth. Syntax colours are switched off for files over 1.5 MB to keep things fast.
How do the log level filters work?
We find levels like ERROR, WARN, INFO and DEBUG on each line. Lines without a level, such as stack traces, stay with the entry above them, so filtering to errors keeps the full trace.
Can I edit the file?
This is a viewer. To change code, download it or copy it into your editor. Converting encodings and line endings is planned.
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