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99Tools vs Kastavo

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

99Tools compared with Kastavo
Detail99Tools logo 99ToolsKastavo logo Kastavo
What it does800+ free online tools for text, code, web, and data processing Free online tools to convert files, calculate values, generate codes and transform text in your browser
StageNot given Not given
FoundedNot given Not given
Based inIN BR
Pricing modelFree Free
PricingNot given Not given
Key features
  • 800+ tools across multiple categories
  • Case converters for text transformation
  • JSON formatter and validator
  • Image compression and conversion
  • Password generator
  • CSS gradient generator
  • HTML formatter
  • Browser-based execution without installation
  • Local data processing for privacy
  • Mobile responsive design
  • Compress and convert images (JPG, WebP, PNG)
  • Merge, split and convert PDF documents
  • QR code generator for text, links, Wi-Fi, Pix, vCard and SMS
  • Word and character counter with real-time processing
  • JWT decoder showing header, payload and expiration
  • Compound interest calculator with monthly contributions
  • Color picker showing HEX, RGB and HSL values
  • Unit converters for length, temperature and more
  • Video compression by selecting resolution and quality
  • Freelance hourly rate calculator for income goals
What makes it different
  • All tools are completely free with no signup required
  • Fast performance with minimal ads and no tracking
  • Data privacy through local browser processing
  • Clean interface without clutter or popups
  • Works on all devices including mobile
  • All tools run entirely in your browser with no file uploads or server processing
  • Fast results with instant processing directly in your browser
  • No sign-up required with no hidden limits or paywalls
  • Available in three languages with localized units and formats
  • Regularly updated catalog with new tools added continuously
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)38 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)170
Citation Flow (Majestic)2121
Referring domains (Majestic)825

5 details filled in for both companies.

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