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The web
keeps changing.
Now you'll know.
Track anything on the web: a browser extension that watches any element on any page and tells you the second it shifts. Diffs, charts, and pixel-perfect snapshots, without writing a line of code.
Three kinds of change.
One tool.
Trkr ships with three first-class detectors. Right-click any element on any page, choose what kind of change to watch for, and we handle the rest.
Word-level diffs.
Git-style side-by-side. See what was added, what was struck, which sentence moved. Works on prose, JSON, terms-of-service, anything.
Pixel comparisons.
Slide between snapshots, see masked overlays, compare any two captures across the timeline. Catches design changes text filters miss.
Numbers over time.
Auto-detects currency, parses any format, draws a chart, and pings you the moment a value crosses your threshold.
Sites change.
Your monitors shouldn't.
Introducing Selector Self-Healing. Our AI-powered self-healing engine automatically updates your trackers when a website redesigns, ensuring your data flow is never interrupted by layout shifts.
Get the signal.
Skip the noise.
Raw diffs are for developers. Trkr creates Natural Language Summaries of every change, telling you exactly what shifted (and by how much) in plain, actionable English.
Point. Click.
Done.
No code, no API keys, no scraping configs. The whole loop fits in four steps and runs from your browser toolbar.
Pin Trkr
Install the extension. The cross-hair icon lives in your toolbar.
Aim it
Right-click any element. Choose text, image, or price detection.
Set a rule
Optional: notify on threshold, on any change, or on a schedule.
Get pinged
Email, push, Slack, webhook. Diffs delivered with full context.
Lives in your
toolbar.
380 pixels wide. Every pixel earns its place. No clutter, no marketing, just the picker, your alerts, and a cursor away from the console.
Runs checks directly in your browser for maximum privacy and zero latency.
Catch every change.
Hello, Mara.
7 trackers active · 3 with new diffs since you last looked.
Pick anything on a page.
Trkr watches it.
"Trkr caught a competitor's pricing change at 4 a.m. on a Saturday. By Monday morning, we'd already shipped a response. It pays for itself every week."— Mara Lin, Head of Product · Hatchwave
Join the
Private Beta.
Welcome to the private beta queue. We are currently onboarding in small waves to ensure system stability. Secure your spot in the queue and we will invite you as new capacity opens. Watch for an invite email from the Trkr team with your activation link.
Watch for an invite email from the Trkr team with your activation link.