SFeeC – Steam Fee Calculator

CSFloat Market Checker

Shows the float value, paint seed, and more of Counter-Strike (CS:GO & CS2) items on the Steam Market or Inventories CSFloat Market Checker uses the dedicated CS Float (formerly CSGO Float) API to allow you to retrieve the float values, 3d models, and screenshots of market items directly from the page! GitHub: https://github.com/csfloat/extension * Allows verification for trades on CSFloat Market * Allows you to retrieve the float, paint seed, and float rank of any market or inventory item * Allows you to fetch the 3D model and screenshot of the item directly on the page * Fetches all floats on the page fast and automatically on page load * User-definable filters to highlight items with low floats or certain paint seeds * Shows market item stickers at a glance and their wear * Change the amount of items on the page up to 100 Compatibility: * This extension has been tested to work with Steam Inventory Helper and Enhanced Steam * Since this extension doesn't hook and modify HTTP headers to bypass steamcommunity.com CSP, it should have greater compatibility with other extensions. Please report issues using our GitHub issue tracker (https://github.com/csfloat/extension/issues).

Steam Market History Helper

Automatically saves and displays your Steam Market transaction history Steam's market history page is slow, paginated, and impossible to search. This extension fixes all of that. Steam Market History Helper syncs your complete transaction history into a local SQLite database — right in your browser. No servers, no accounts, no data collection. Your trades stay on your machine. 🗄️ REAL DATABASE — NOT A TOY Built on SQLite with Origin Private File System — the same database engine used by apps processing billions of rows. Tested and proven with over 1,000,000 transactions across multiple accounts. No crashes, no slowdowns, no data corruption. Other tools choke at a fraction of this scale. 🔄 RELIABLE BACKGROUND SYNC Set it and forget it. The extension fetches your history automatically with smart resume — it picks up exactly where it left off, even after browser restarts or connection errors. Exponential backoff handles Steam's rate limits gracefully. Real-time progress tracking in the popup, with milestone notifications every 10,000 items during bulk sync. 🔍 15+ SEARCH FILTERS — SQL FAST Filter by item name, buyer/seller, date range, price range, game, transaction type, currency, CS2 item type, collection, StatTrak, Souvenir, or custom filter groups. Every query runs as optimized SQL — instant results even on massive datasets. Save your favorite filter combinations for one-click access later. Optional performance indexes speed up filtered queries and pagination by ~4x with only 5–10% increase in database size. 📊 12 INTERACTIVE CHARTS — TABBED DASHBOARD Charts are organized into 3 tabs — Financial Overview, Items & Games, and Activity & Comparison — with lazy loading per tab: Financial Overview: Purchases vs Sales over time Cumulative Profit/Loss tracking Monthly Summary with buy/sell split Price Distribution histogram Spending Trend with 3-month moving average Top Items breakdown Top Games breakdown Game Breakdown with year filter Activity Heatmap — day-of-week × hour-of-day patterns Day of Week distribution (filterable by year and month) Hour of Day distribution (filterable by year and month) Year-over-Year comparison — overlay monthly data across years with spending/earnings/transaction count selector All charts support per-currency toggle for multi-currency traders. 📤 FULL EXPORT CONTROL CSV or JSON with a column picker — choose exactly which of the 13 available columns to include. File size estimation before export so you know what to expect. Chunked processing for massive datasets — no browser freezing, and cancellable mid-export. Dates formatted in your locale. 🔗 LISTING PAGE INTEGRATION Visit any item's market page on Steam and see your complete buy/sell history for that item injected directly into the page. Per-item summary with buy/sell totals broken down by currency. Click any price to see the full fee breakdown (Steam Fee + Publisher Fee + net amount). CS2 items get an Inspect in Game overlay on hover. 🛠️ DIAGNOSTICS & REPAIR A full diagnostic suite for power users — no other market history extension offers this: Database health overview with row counts and coverage percentage Fill Gaps — automatically detect and re-fetch missing transactions Rebuild Database — recover data from a corrupted database by batch-reading Vacuum — reindex and reclaim unused disk space Performance index sizes visible in the diagnostics dashboard Real-time action log for all diagnostic operations 👥 MULTI-ACCOUNT SUPPORT Automatically detects Steam account switches. Each account gets isolated data, independent sync settings, and separate notification preferences. Quick account switcher in the popup — no manual configuration needed. 💾 FULL DATABASE BACKUP & RESTORE Stream-download your entire SQLite database — handles files well over 1.5 GB without loading into memory. Restore from any backup with automatic account reconciliation. Your data is always portable. 🔒 ZERO DATA COLLECTION No analytics. No telemetry. No external requests except to Steam for your own transaction data. No sign-up, no cloud sync, no servers. Everything stays in your browser's local storage. Your SQLite database is yours — backup it, inspect it, migrate it however you want. ⚡ BUILT FOR THE MODERN WEB Chrome Manifest V3. SQLite with WAL journal mode on a dedicated Web Worker — database operations never block the UI. Optimized indexes across all filter dimensions. Optional composite indexes for power users who want even faster queries. Streaming backup and restore with no file size limits. 🌐 11 Languages English, Türkçe, Русский, 中文 (简体), Français, Deutsch, Español, Português (Brasil), Polski, 日本語, 한국어 Language is auto-detected from your Steam profile or set manually.

MarketApp P2P

MarketApp P2P is the official extension for the Market.CSGO marketplace, designed to facilitate safe and fast item sales through a peer-to-peer (P2P) system. Extension Features: Basic Integration with Steam API The extension retrieves basic information from your Steam profile for display, as well as information from other users profiles for P2P trades on the trade offer page. Creating and Accepting Trade Offers via Steam API The extension allows users to create and accept trade offers on Steam that are initiated by Market.CSGO. Depending on the settings, this process can be either manual or automatic. Note that the extension does not handle trade confirmations. You will need to use the official Steam app, the MarketApp, or the Market.CSGO mobile app to confirm trades. Steam Trade Offer Page This page features a custom interface that distinguishes Market.CSGO trade offers from other offers. It also provides the ability to manually create and confirm trade offers from Market.CSGO. CS2 Game Inventory Page on Steam The appearance of the inventory page for CS2 items has been enhanced, with added features such as displaying the Float value and showing trade restrictions for items. For convenience, quick-sell and instant-sell buttons have been added for selling items on the Steam marketplace. The top toolbar has also been redesigned with a “Multiple Item Sale on Steam Marketplace” feature, which allows users to select multiple CS2 inventory items and sell them at a specified price. Steam Market Page The extension enhances the Steam Community Market page with advanced trading tools and market analytics. The module provides three main sections: Active Lots for managing your buy and sell orders with price deviation warnings, Steam Market Trade for browsing popular items, new listings, and recently sold items with search functionality, and Market History for viewing your complete trading history with filtering options and CSV export. Users can create buy orders, list items for sale, remove listings, and cancel buy orders directly from the enhanced interface, with real-time price updates and trade volume information displayed for better trading decisions.

Steamlvlup Card Factory

Improves your interaction with your Trading Cards, game Badges and Steam profile level. Official Web Extension by Steamlvlup.com The main functions are: — Drops cards from your games, right in the browser, without the need to enter your personal data. — Up to 32 games in IDLE mode for increase hours — Table for calculating the profit of creating Booster packs — Automatically create badges by pressing one button. — Prices for items in your Steam inventory — Ability to proceed to purchase the game badges from the game page in the Steam Store — Checking the trade offers for SCAM Your bug reports and suggestions: help@steamlvlup.com or Discord Our Discord: https://discord.gg/H7mVkcb8ZP