CSI Code Lookup

Overview

Quickly lookup CSI MasterFormat codes and divisions for construction projects.

Streamline Your Construction Estimating with Instant CSI Code Lookups. Stop flipping through massive PDF manuals or searching through endless browser tabs just to find the right MasterFormat code. The CSI Code Lookup extension is the fastest way for General Contractors, Estimators, and Project Managers to find the exact construction division codes they need, right from their browser. Why Install This Extension? * ⚡ Instant Search: Type any keyword (e.g., "Painting", "Concrete", "HVAC") or division number to see results instantly. * 📚 Comprehensive Database: Includes a massive library of updated CSI MasterFormat Level 2 codes and divisions. * 📋 One-Click Copy: Click any result to copy the code directly to your clipboard—perfect for pasting into estimates, bid packages, or Excel sheets. * 🛡️ Privacy-First & Offline: No tracking, no ads, and works 100% offline. It simply does what it says. Who is this for? * General Contractors building budget proposals and scopes of work. * Subcontractors verifying trade-specific codes. * Architects & Engineers writing specifications. * Construction Students learning the MasterFormat system. Powered by Bid Bench This free tool is brought to you by [Bid Bench](https://www.bidbench.com), the simplest way for General Contractors to create budgets, manage subcontractor bids, and store project files in the cloud. We built this tool because we needed it ourselves—we hope it saves you time too!

0 out of 5
No ratings
Learn more about results and reviews.

Details

Version
1.2
Updated
February 8, 2026
Flag concern
Size
12.92KiB
Languages
English (United States)
Developer
Bid Bench
11171 White Oak Way Nevada City, CA 95959-9726 US
Website
Email
help@extracto.bot
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

VisualDNA – Design System Extractor

0.0

Extract the complete visual design system of any site. Get colors, typography, components, and generate AI-ready prompts instantly.

Kunverge: Research Smarter With AI

0.0

Generate insights faster and seamlessly. Capture text as you research and turn it into structured insights with Kunverge.

Issues → AI Instructions

0.0

Copy code analysis issues as Markdown instructions ready to paste into an AI coding agent.

Perplexity on Steroids

5.0

Upgrade Perplexity AI with syntax highlighting, quick code navigation, instant copy, and a sleek modal code viewer and more!

RMCP

4.7

Shows Rate My Professors ratings directly on CUNY Schedule Builder pages.

VidArchitect - AI Video Strategist

5.0

Transform YouTube videos into architect-ready projects using AI.

Claude Code Companion

0.0

Essential toolkit for Claude Code developers. CLAUDE.md generator, token counter, prompt templates, and quick reference.

Web Design Scraper

0.0

Extract and inspect web design measurements!

Claude Code Monitor

0.0

Displays Claude Code usage and limits instantly.

Search OBDII Codes - AutoCodes.com

0.0

Quickly search OBDII codes, manage bookmarks, and view history.

Ned - CVSS Calculator

5.0

Calculate CVSS 3.1 & 4.0 scores directly. Completely offline, with a built-in MITRE CWE database for fuzzy searching.

CSS Peeper AI

0.0

Inspect any element and instantly generate Tailwind, CSS, and Styled-Components code with AI.