Are NanoTools completely free to use?

Yes, all basic tools on NanoTools are completely free to use with no registration required. We offer premium features for power users.

Is my data secure when using NanoTools?

Your files are processed securely and are automatically deleted after processing. We do not store your files or data on our servers.

No installation required. All tools work directly in your browser on any device - computer, tablet, or smartphone.

We support a wide range of formats including PDF, JPG, PNG, WebP, GIF, JSON, XML, CSV, and many more depending on the tool.

Visualize regex online for free. See regular expression as a diagram. Understand regex patterns.

Understand regex patterns with visual explanations

Character Class

Quantifier

Group

Anchor

Special Character

Literal

1

Paste your regex pattern

2

View breakdown of pattern components

3

Enter text to test pattern against

4

See what parts of text match

Blue=character classes, Yellow=quantifiers, Green=groups, Orange=anchors, Purple=special chars, Gray=literals.

It handles common patterns. Very advanced features like lookbehinds may have limited support.

Character classes like \d (digits), \w (word chars), or [abc] (any of a,b,c) match specific sets of characters.

Enter text with multiple instances. The tool will find all matches if using global flag.