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Metadata & SEO

Title
Free Developer Tools Collection - 40+ Essential Utilities
Description
Access 40+ essential developer tools for free. JSON formatter, Base64 encoder, hash generator, JWT decoder, UUID generator, data validator, and more. All tools work offline.
Keywords
developer tools, online utilities, JSON formatter, base64 converter, hash generator, password generator, QR code generator, code minifier, regex tester, UUID generator, timestamp converter, markdown preview, SQL formatter, API tester, cron expression, text diff checker, color palette generator, image optimizer, lorem ipsum generator, JWT decoder, developer tools, free online tools, JSON formatter, base64 encoder, hash generator, escape characters, RBAC designer, environment variables, background...
Canonical URL
https://mainutility.comhttps://mainutility.com/
Language
en
Viewport
width=device-width, initial-scale=1

Domain Owner Information

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Registrar
GoDaddy.com, LLC
Created
January 15, 2022
3 years 358 days old
Expires
January 15, 2026
7 days left

SSL/TLS Certificate

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Issued By
C=US, O=Google Trust Services, CN=WR3
Security Score
77 /100

Social Media Cards

OpenGraph (10 properties)

Type
website
Description
Access 40+ essential developer tools for free. JSON formatter, Base64 encoder, hash generator, JWT decoder, UUID generator, data validator, and more. All tools work offline.
Title
Free Developer Tools Collection - 40+ Essential Utilities
Image
https://mainutility.com/api/og?title=Free%20Developer%20Tools%20Collection%20-%2040%2B%20Essential%20Utilities&description=Access%2040%2B%20essential%20developer%20tools%20for%20free.%20JSON%20formatter%2C%20Base64%20encoder%2C%20hash%20generator%2C%20JWT%20decoder%2C%20UUID%20generator%2C%20data%20validator%2C%20and%20more.%20All%20tools%20work%20offline.
Url
https://mainutility.comhttps://mainutility.com/
Locale
en_US
Site Name
Main Utility - Developer Tools
Image:width
1200
Image:height
630
Image:alt
Free Developer Tools Collection - 40+ Essential Utilities

Twitter Cards (5 properties)

Description
Access 40+ essential developer tools for free. JSON formatter, Base64 encoder, hash generator, JWT decoder, UUID generator, data validator, and more. All tools work offline.
Title
Free Developer Tools Collection - 40+ Essential Utilities
Image
https://mainutility.com/api/og?title=Free%20Developer%20Tools%20Collection%20-%2040%2B%20Essential%20Utilities&description=Access%2040%2B%20essential%20developer%20tools%20for%20free.%20JSON%20formatter%2C%20Base64%20encoder%2C%20hash%20generator%2C%20JWT%20decoder%2C%20UUID%20generator%2C%20data%20validator%2C%20and%20more.%20All%20tools%20work%20offline.
Card
summary_large_image
Creator
@mainutility
Inspected on January 10, 2026 at 11:05 UTC