Printf Text

Normalize raw data by applying printf-style templates to every line. Decode escape sequences and map variables to precise formatting rules. Refine output.

Input Text

Paste the text that should be formatted with a printf-style template.

Printf Format

Format Each Line

Apply the format string to every input line separately instead of formatting the whole text at once.

Interpret Escapes

Convert escape sequences like "\n" and "\t" in the format string before applying it.

Formatted text:

Please configure parameters and execute the action.

About Printf Text

Printf Text inserts your input into a printf-style format string. It is useful for wrapping data, preparing template output, and applying the same text format to one block or to many lines.

How It Works

Use the tool in three quick steps:

Paste the source text - Add the text that should be formatted.
Enter a printf format - Include "%s" where the text should appear.
Generate the output - Click Printf Text to apply the format.

Basic Examples

Wrap text in dashes

Input Text:
hello world

Printf Format:
-%s-

Output:
-hello world-

Format each line separately

Input Text:
apple
banana

Printf Format:
[%s]

Format Each Line:
checked

Output:
[apple]
[banana]

Use escaped line breaks in the format

Input Text:
report

Printf Format:
Item:\n%s

Interpret Escapes:
checked

Output:
Item:
report

Real-World Usage Scenarios

SQL Query Construction - List Formatting - Quickly convert a raw list of IDs or usernames into a formatted SQL IN clause. By using a format like '%s', and enabling 'Format Each Line', you can wrap hundreds of items in single quotes and commas in seconds.
Environment Variable and Script Preparation - Transform a list of keys into shell export commands or configuration file entries. For example, using 'export API_KEY="%s"' allows developers to rapidly wrap raw tokens into valid syntax for .env files or bash scripts.
Markdown List and Task Generation - Convert plain text notes into structured Markdown content. By applying a format like '- [ ] %s', you can turn a line-separated list of features or bugs into a functional GitHub-style checklist.
Log Enrichment and Tagging - Append consistent metadata or wrappers to log entries. If you have raw error messages, you can use a format like '[DEBUG] - %s' to prepare them for documentation or troubleshooting reports.

Frequently Asked Questions

Why is the %s placeholder mandatory?

The tool uses %s as a token to determine exactly where your input text should be injected within the template string. Without it, the tool wouldn't know how to merge your text with the format.

How can I add new lines or tabs to the output?

Enable the 'Interpret Escapes' option. This allows you to use standard sequences like \n for a new line or \t for a tab within your format string.

Can I process a bulk list of items separately?

Yes. Enable 'Format Each Line' to treat every line in your input as an independent string. The format will be applied to each line individually rather than the entire text block.

Does this tool support numeric formatting like %d?

This tool is optimized for string replacement using %s. It treats all input as text to ensure maximum compatibility with lists, code snippets, and raw data.

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