Simple online tools for developers, networking, text and conversions.

Text Tools

Keep Only Numbers FAQ

Find clear answers to common questions about Keep Only Numbers, including usage, output, and common issues.

About this FAQ

Use this keep only numbers tool to extract digits from mixed text while removing letters, punctuation, symbols, and other non-numeric characters.

Keep Only Numbers helps clean, transform, or inspect text directly in the browser, which is useful for writing, editing, SEO, and content workflows.

Frequently asked questions

What does Keep Only Numbers do?

It removes everything except numeric digits.

Does it keep decimal points or plus signs?

No. It keeps digits only.

Does it keep spaces?

No. All non-digit characters are removed.

How is this different from Remove Letters from Text?

Keep Only Numbers returns digits only, while Remove Letters from Text keeps all non-letter characters.

Can I use it on long text?

Yes. It works on short strings and long text blocks.

When should I use Keep Only Numbers?

Keep Only Numbers helps clean, transform, or inspect text directly in the browser, which is useful for writing, editing, SEO, and content workflows.

What should I check if keep only numbers gives an unexpected result?

Start by checking the input format, removing accidental spaces or unsupported characters, and comparing your input against the example pattern on the page.

Common issues people run into

Expecting spaces or separators to remain.

Fix: This tool keeps only digits, so separators are removed too.

Wanting letters removed but punctuation kept.

Fix: Use Remove Letters from Text if you want to keep symbols and punctuation.

Expecting spelled numbers like ten to remain.

Fix: This tool keeps numeric digits only, not number words.

Need more than answers?

If you want to see realistic input and output patterns, open the examples page. If you want step-by-step usage guidance, open the guide page.

Try the tool

Open the main Keep Only Numbers page to test your own input and generate a live result.

Open Keep Only Numbers