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Utilo vs Onyx

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Utilo compared with Onyx
Detail UtiloOnyx logo Onyx
What it doesFree online developer tools that run privately in your browser Connected things and journeys, crafted like gems
StageNot given Not given
FoundedNot given Not given
Based inNot given IT
Pricing modelFree Not given
PricingNot given Not given
Key features
  • JSON formatter, validator, and converter to YAML, CSV or TypeScript
  • JWT decoder for inspecting token header, payload and expiry
  • QR code and barcode generator with custom colors and download options
  • Image compressor for batch processing to WebP, JPEG or PNG with quality slider
  • curl converter between curl, fetch, axios, Python, Go, Node and PHP
  • Hash generator supporting MD5, SHA-1, SHA-256, SHA-384, SHA-512
  • Cron expression builder and parser with next run times
  • JSON diff tool with structural comparison and collapsible tree
  • SQL formatter and dialect converter for MySQL, PostgreSQL, SQLite and SQL Server
  • Certificate decoder for PEM certificates, chains and CSRs with SANs and fingerprints
  • Docstack NoSQL Framework with relational structure and admin tooling
  • Prismal Design System with reusable and customizable components
  • React component library with responsive props and accent theming
  • Prismal WordPress theme integrating React components in Gutenberg
  • Database that runs inside applications with filtered replication and encryption
What makes it different
  • All tools run client-side in your browser with no data uploads to servers
  • Fast static site served from global edge network with no sign-up required
  • Clean interface available in 10 languages with dark mode and keyboard shortcuts
  • Free to use forever with non-intrusive ads never accessing tool data
  • Built as static Next.js export preventing server-side processing of sensitive data
  • Good abstractions that make complexity composable rather than hiding it
  • Pragmatic UI/UX blending functionality with great user experiences
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)2 +1 (up) since last check2 no change since last check
Trust Flow (Majestic)40
Citation Flow (Majestic)1717
Referring domains (Majestic)42

3 details filled in for both companies.

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