Developer Tool Box vs Selvedge

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

Developer Tool Box compared with Selvedge
Detail	Developer Tool Box	Selvedge
What it does	Browser-based developer utilities for formatting, encoding, decoding, conversion and everyday workflows	Keep the why with your code
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Open source
Pricing	Free	Not given
Key features	Local browser processing No account required Mobile-friendly interfaces	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
What makes it different	Permanent tool URLs for direct access Privacy-aware local processing Transparent processing behavior Quality implementations with testing	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
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	1 −1 (down) since last check	36 no change since last check
Trust Flow (Majestic)	1	5
Citation Flow (Majestic)	5	31
Referring domains (Majestic)	12	97

4 details filled in for both companies.