Steam Market Item Price Tracker

Tracking since Apr 17, 2026.

Changelog

• Apr 17, 2026
  description

  Steam's market pages show you prices, but they don't tell you when to act. This extension does.
  Steam Market Item Price Tracker monitors buy and sell orders across the Steam Community Market and alerts you the moment prices, volumes, or spreads hit your targets. Real-time arbitrage calculations with accurate Steam fee breakdown — so you know your actual profit before making a trade.
  🔔 6 ALARM TYPES — NEVER MISS A DEAL
  
  Buy price alerts — get notified when buy order prices drop below or rise above your thresholds
  Sell price alerts — track listing price movements with upper and lower bounds
  Buy volume alerts — detect rising demand before prices move
  Sell volume alerts — spot shrinking supply early
  Spread alerts — know when the buy/sell gap tightens and the market is most liquid
  Arbitrage alerts — set a minimum profit percentage after fees and get notified when a trade becomes profitable
  
  Each alarm type supports independent upper and lower thresholds. Breached thresholds are highlighted in red with one-click auto-adjust to current values.
  💰 LIVE ARBITRAGE CALCULATOR
  Real-time profit calculation on every tracked item with accurate Steam fee breakdown — 5% Steam fee + 10% publisher fee applied correctly. See your potential profit amount and percentage before committing to a trade. No guessing, no manual math.
  📊 LIVE MARKET DATA ON LISTING PAGES
  An expandable panel injected directly into Steam Market listing pages showing:
  
  Current buy and sell order prices updated in real time
  Live buy/sell volume from Steam's histogram data
  Full arbitrage breakdown with fee details
  Auto-expand option for tracked items — the panel opens automatically when you visit a tracked item's page
  Always-show arbitrage mode — see profit data even when the panel is collapsed
  
  🎒 INVENTORY INTEGRATION
  A "Track on Market" button is injected into every marketable item in your Steam inventory. Click it to start tracking any item instantly — no need to navigate to the market page first. The button updates automatically as you browse through your inventory.
  🔍 SEARCH PAGE INTEGRATION
  Items you're already tracking show a "Tracking" badge directly in Steam Market search results. Hover for a tooltip showing your active alarm summary. Click to jump straight to the item's tracking panel.
  🔔 SMART NOTIFICATIONS
  Desktop notifications for every alarm type — price, volume, spread, and arbitrage. Smart suppression: if you already have the item's page open, the notification is silenced to avoid noise. Click any notification to open the market page and scroll directly to the tracking panel. Batch open support lets you open all pending notifications at once. A badge counter on the extension icon shows unread alert count.
  📋 TRACKING LIST
  Full management dashboard for all tracked items:
  
  Table view with all items, grouped by game
  Search and filter by item or game name
  Collapsible game groups for easy browsing
  Edit alarms or delete items with confirmation
  Quick overview of all active thresholds
  
  ⚙️ FLEXIBLE SETTINGS
  
  Check interval — minimum 5 seconds, adjust based on how many items you track
  Price step value — customize increment/decrement amount for alarm inputs
  Toggle search badges, inventory buttons, listing panel, and arbitrage display independently
  Currency and country selection for accurate price display
  Full data export/import in JSON — backup your tracking list and restore on any machine
  
  🌐 27 LANGUAGES
  English, Türkçe, Deutsch, Français, Español, Português, Русский, 中文, 日本語, 한국어, Polski, Italiano, Nederlands, Magyar, Norsk, Dansk, Suomi, Română, Čeština, Ελληνικά, Български, Українська, ไทย, and more.
  Language switches instantly — no restart needed.
  🔒 ZERO DATA COLLECTION
  No analytics, no telemetry, no external servers. The only network requests go to Steam for price data. Your tracking list stays in your browser's local storage. Export it anytime as a JSON backup.
  ⚡ BUILT ON MODERN TECH
  Chrome Manifest V3 with Plasmo framework. React 18 + TypeScript under the hood. Reliable background scheduling via chrome.alarms. Round-robin item checking distributes load evenly across your tracked items. XHR interception captures live histogram data from Steam's own API. Game name caching minimizes redundant API calls.

  Steam shows you prices. It doesn't show you when to buy, when to sell, or how much you'll actually pocket after fees. That's the gap this extension fills.
  
  Steam Market Item Price Tracker watches your items around the clock — monitoring buy orders, sell listings, volumes, and spreads across the entire Steam Community Market. The moment any metric crosses your threshold, you get a notification. Combined with a built-in arbitrage calculator that accounts for every Steam fee down to the cent, you always know your real profit before you commit.
  
  ## 📈 PRICE HISTORY — SEE WHERE PRICES HAVE BEEN
  
  Prices right now are only half the picture. Enable per-item price history to record buy order and sell listing changes over time, stored locally in your browser. View 7-day, 30-day, 90-day, or full-range charts with dual Y-axis for price and quantity. A mini trend chart appears right on the listing page so you can spot patterns at a glance. Configure retention from 30 to 180 days — your data, your rules.
  
  ## 🔔 6 ALARM TYPES — EVERY ANGLE COVERED
  
  Most trackers only watch prices. This one watches the entire order book:
  
  - **Buy price alerts** — get notified when buy order prices cross your upper or lower thresholds
  - **Sell price alerts** — track listing price movements in both directions
  - **Buy volume alerts** — rising demand often leads price. Catch it early
  - **Sell volume alerts** — shrinking supply means fewer sellers. Act before the squeeze
  - **Spread alerts** — the tighter the spread, the more liquid the market. Know when conditions are ideal
  - **Arbitrage alerts** — set a minimum profit percentage after all fees. Get notified when a trade turns profitable
  
  Every alarm supports independent upper and lower bounds. Breached thresholds light up in red. One click on the Adjust button snaps them to current values — no manual re-entry.
  
  ## 💰 LIVE ARBITRAGE CALCULATOR
  
  Real-time profit math on every tracked item. Steam's fee structure isn't obvious — 5% Steam fee plus 10% publisher fee, both floor-rounded with minimums. This calculator handles it all correctly and shows you the exact net profit amount and percentage. No spreadsheets, no guessing.
  
  ## 📊 LIVE DATA RIGHT ON THE LISTING PAGE
  
  An expandable panel injected directly into Steam Market listing pages:
  
  - Current buy and sell prices, updated in real time via XHR interception
  - Live buy/sell volume pulled from Steam's histogram API
  - Full arbitrage breakdown with fee details
  - Mini price history chart showing the 7-day trend
  - Auto-expand option — the panel opens automatically when you visit a tracked item
  - Always-show arbitrage mode — profit data visible even when the panel is collapsed
  
  ## 🎒 TRACK FROM YOUR INVENTORY
  
  Every marketable item in your Steam inventory gets a "Track on Market" button. One click starts tracking — no need to navigate to the market page, search for it, or copy-paste names. The button updates live as you browse inventory panels across any game.
  
  ## 🔍 SEARCH PAGE AWARENESS
  
  Already tracking an item? A "Tracking" badge appears next to it in Steam Market search results. Hover for a quick alarm summary. Click to jump straight to the tracking panel. You'll never accidentally duplicate a tracked item or lose track of what you're watching.
  
  ## 🔔 NOTIFICATIONS THAT RESPECT YOUR ATTENTION
  
  - Desktop alerts for all 6 alarm types
  - **Smart suppression** — if the item's page is already open in a tab, the desktop notification stays silent
  - Click any notification to open the listing page and scroll directly to the panel
  - Batch open — launch all pending notifications at once
  - Badge counter on the extension icon shows unread alerts at a glance
  
  ## 📋 FULL TRACKING DASHBOARD
  
  A dedicated management page for your entire watchlist:
  
  - All items in a searchable, filterable table
  - Grouped by game with collapsible sections
  - Edit thresholds or remove items with confirmation dialogs
  - Quick-access links to price history for items with history enabled
  - See every active alarm at a glance
  
  ## ⚙️ YOUR SETTINGS, YOUR WAY
  
  - **Check interval** — as fast as every 5 seconds, scales with your item count
  - **Price step** — customize the increment/decrement for alarm threshold inputs
  - **History retention** — keep price history for 30, 60, 90, or 180 days
  - **Enable History by Default** — new items automatically start recording price history
  - **Feature toggles** — independently control search badges, inventory buttons, listing panel, arbitrage display, auto-expand, and always-show arbitrage
  - **Currency & country** — match your Steam wallet for accurate pricing
  - **Export / Import** — full JSON backup. Move your tracking list between machines or keep a safety copy
  
  ## 🌐 27 LANGUAGES
  
  English · Türkçe · Deutsch · Français · Español · Português · Русский · 中文 · 日本語 · 한국어 · Polski · Italiano · Nederlands · Magyar · Norsk · Dansk · Suomi · Română · Čeština · Ελληνικά · Български · Українська · ไทย and more. Switches instantly — no restart needed.
  
  ## 🔒 YOUR DATA STAYS IN YOUR BROWSER
  
  Zero analytics. Zero telemetry. Zero external servers. The only network traffic goes to steamcommunity.com and steampowered.com for price and volume data. Your tracking list and price history live in your browser's local storage. Export anytime as JSON. No account required.
  
  ## ⚡ BUILT FOR RELIABILITY
  
  Runs efficiently in the background without slowing down your browser. Checks are distributed evenly across your tracked items so nothing gets missed — even with a large watchlist. Data comes directly from Steam's own API for maximum accuracy.

Permissions & access

Permissions

storagescriptingnotificationsalarms

Host access

https://steamcommunity.com/*, https://store.steampowered.com/*

Screenshots

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