Comment Density Analyzer for Contracts
Free to download on every platform. Comes pre-installed on BotFone, BotPad and BotFlip — with extra free apps included.
About this app
WHAT IT DOES
Comment Density Analyzer for Contracts is a static analysis tool that reads Solidity source code you provide and reports comment density metrics. It counts comment lines (both single‑line // and multi‑line /* */ blocks), measures character‑level comment vs. code ratio, and highlights areas where documentation is sparse or unusually verbose. The output includes a density percentage, a visual bar, and a tag (healthy, moderate, sparse, verbose) to guide code review efforts. This is not a linter — it focuses purely on documentation coverage, not syntax or semantics.
HOW TO USE
Paste any Solidity contract source into the input area. Press Analyze. The report shows total lines, comment lines, number of single‑line and multi‑line comments, and a line‑ratio percentage. A color‑coded bar gives an at‑a‑glance density score. Use the results to identify files that need more explanatory comments, or to spot potential over‑commenting that may indicate redundant or outdated notes. The tool is read‑only — no blockchain connection is required, and no code is sent off‑device.
THE REAL MECHANISM
The analyzer parses the source line by line, distinguishing code from comment text using a finite‑state scanner that tracks multi‑line comment boundaries. It strips string literals to avoid false positives from quotes inside code, and counts characters in comment regions separately from code characters. All metrics are computed locally in the browser — no external API calls, no network transmission, and no persistent storage. This approach ensures complete privacy for proprietary or internal contract code, while the algorithmic simplicity keeps analysis instant and deterministic.
WHAT IT CANNOT SEE
The tool cannot determine if comments are meaningful, accurate, or up‑to‑date. It does not detect semantic errors in comments, nor does it verify that comments match the code they describe. It cannot analyze non‑Solidity code, enforce project‑specific comment style guidelines, detect misleading or outdated comments, or examine comments in external libraries or dependencies. Density is a proxy for documentation effort — not a measure of quality.
PLEASE NOTE — EVM CHAINS ONLY
This tool is designed for Solidity contracts targeting Ethereum Virtual Machine (EVM) compatible chains. It does not support Vyper, Rust, Move, or other smart contract languages. All processing occurs in your browser; no contract data is stored or transmitted.
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