Generators
Generators for QR codes, passwords, UUIDs, UTM links, SEO snippets, structured data, and test values.
QR Code Generator
Create QR codes for links, text, Wi-Fi, and contacts.
Password Generator
Generate strong passwords with clear length and character controls.
UUID Generator
Create UUID v4 identifiers in one click.
UTM Link Builder
Build campaign URLs with source, medium, and campaign tags.
SEO Snippet Generator
Preview a search result title, URL, and description.
Barcode Generator
Generate printable barcodes for product codes.
Random Number Generator
Generate random numbers within a custom range.
Random String Generator
Create controlled random strings for fixtures, placeholders, and test data.
Username Generator
Generate clean usernames for accounts and products.
Name Generator
Generate sample names for forms and mock data.
Invoice Number Generator
Create invoice and document numbers with prefixes.
Robots.txt Generator
Create robots.txt rules for search crawlers.
Sitemap Generator
Generate XML sitemaps for public canonical URLs.
Meta Tags Generator
Generate title, description, canonical, and robots tags.
Open Graph Generator
Create Open Graph and Twitter card tags.
Schema Markup Generator
Generate JSON-LD structured data for SEO.
Fake Data Generator
Create sample names, emails, addresses, and IDs.
CSS Box Shadow Generator
Build precise CSS box-shadow values.
Popular tasks
Prepare test values
How to choose a generator
Use this section to create QR codes, passwords, UUIDs, UTM links, SEO snippets, sitemaps, test data, and random values. Generators run locally in the browser, so you can produce an output, review it, and copy it without sign-up or extra setup.
How to choose a generator
- QR Code Generator - when a link, text, Wi-Fi network, or contact should open from a scan.
- Password Generator - when you need a new password with clear length and character controls.
- UUID Generator - when a test, record, or prototype needs a unique identifier.
- UTM Link Builder - when campaign links need clean source, medium, and campaign tags.
What you can do
- Create practical values for a website, campaign, document, prototype, form, or test environment.
- Prepare web and SEO snippets such as meta tags, Open Graph, Schema Markup, robots.txt, and XML sitemaps.
- Build safe sample material for development with random strings, numbers, usernames, names, and fake data.
Formats and limits
- QR codes and barcodes are for scan-friendly values; UTM and SEO generators prepare text snippets for websites.
- Passwords, UUIDs, and random strings are not interchangeable: passwords protect access, UUIDs identify records, and strings fill test scenarios.
- Fake data should not be treated as real customers, addresses, orders, or payment values.
Data and processing
Why browser-local matters for generators
- Generators often touch campaign URLs, SEO drafts, internal test values, and passwords before they are stored elsewhere.
- Local generators create results in your browser and do not send entered data to Utilio servers.
- Before publishing, check the generated output in the destination system: CMS, analytics, app, or print layout.
Common questions
Do generators send data to Utilio?
Generators in this category create supported values in your browser. Utilio does not store generated passwords, identifiers, campaign links, QR payloads, or test data.
Which generator should I choose?
Choose by output: QR or barcode for scanning, password for access, UUID for identifiers, UTM for campaigns, SEO generators for pages, and fake data for prototypes or tests.
Can generated test data be used in a live product?
No. Generated sample data is meant for development, demos, and interface testing. Replace it with real data from your own system before live use.