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Sentnl vs Utilo

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

Sentnl compared with Utilo
DetailSentnl logo Sentnl Utilo
What it doesProtect your client retainers from silent AI failures Free online developer tools that run privately in your browser
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Free
PricingFree: 500 transactions per month, no credit card required Not given
Key features
  • Real-time transaction monitoring
  • Empty output detection
  • Instant email notifications
  • 5-minute webhook setup
  • Integration with major automation platforms
  • No database required
  • Free tier with 500 transactions monthly
  • 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
What makes it different
  • Built specifically for AI agencies and freelancers managing client workflows
  • Catches soft failures instantly before clients notice
  • No credit card required for free tier
  • Simple webhook integration without custom monitoring scripts
  • 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
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)1 −1 (down) since last check2 +1 (up) since last check
Trust Flow (Majestic)04
Citation Flow (Majestic)517
Referring domains (Majestic)204

4 details filled in for both companies.

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