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Selvedge vs TCZON

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

Selvedge compared with TCZON
DetailSelvedge logo SelvedgeTCZON logo TCZON
What it doesKeep the why with your code Analyze time and space complexity, optimize code, and learn algorithms in one connected workflow
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelOpen source Free
PricingNot given Not given
Key features
  • Records stated reasoning for changes the agent logs
  • Entity-level attribution for code elements
  • Retrieves recorded attempts and outcomes
  • Groups related changes across files
  • Full-text search over change history
  • Exports to Agent Trace format
  • Local SQLite storage with no hosted backend
  • MCP and CLI interfaces
  • Concurrent readers and writers with WAL mode
  • Real-time Big O complexity calculation for code snippets
  • Support for multiple programming languages
  • Best, worst, and average case complexity analysis
  • Interactive learning paths for algorithms and data structures
  • Pre-built examples for sorting, searching, graph, and other algorithms
  • Comparison of original versus optimized code
What makes it different
  • Zero network dependencies; all storage and history queries run locally
  • Captures reasoning at the time of change from the agent's own context
  • MIT-licensed open source with no vendor lock-in
  • Works with any compatible AI agent through standard MCP protocol
  • Validates reasoning quality to surface low-quality logs
  • Unified platform combining analysis, optimization, and learning in one workflow
  • Human-friendly explanations prioritizing intuition over jargon
  • No account required to access tools and learning material
  • Structured learning progression from complexity basics to advanced algorithms
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)36 no change since last check2 no change since last check
Trust Flow (Majestic)51
Citation Flow (Majestic)314
Referring domains (Majestic)972

4 details filled in for both companies.

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