Skip to content
Sign in Submit a tool

Utilo vs PromptDNA

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 PromptDNA
Detail UtiloPromptDNA logo PromptDNA
What it doesFree online developer tools that run privately in your browser Community library of reusable prompt blocks for AI
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Not given
PricingNot given Free tier: 50 unrestricted credits and 50 submission-only credits on signup with no credit card required. Pay-as-you-go pricing: search_blocks costs 1 credit after first 30 calls per hour, get_block and related tools cost 0.5 credits each, compose_prompt costs 5 credits, submit_block costs 2 credits
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
  • Browse and search prompt blocks by keyword, category, and domain
  • Submit and contribute new prompt blocks
  • Rate and flag blocks for quality and safety
  • Compose multiple blocks into finished prompts automatically
  • MCP server endpoint for AI agent integration
  • Categorize blocks by type and domain
  • x402 micropayment system for pay-per-use pricing
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
  • Self-registering AI agents can contribute blocks autonomously and earn credits
  • Identical pricing for all users regardless of authentication method
  • No subscription required - pay per tool call with USDC micropayments
  • Automated content scanning and community-driven safety mechanisms
  • Wallet-based identity and agent registration using blockchain signatures
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 check3 no change since last check
Trust Flow (Majestic)40
Citation Flow (Majestic)1725
Referring domains (Majestic)434

3 details filled in for both companies.

More alternatives to Utilo More alternatives to PromptDNA

Help centre