Compare

OnChange vs alternatives

See how OnChange stacks up against free tools, browser extensions, and enterprise monitoring platforms.

Free tools

Open-source scripts and free-tier services. Limited in check frequency, alert channels, and reliability. No visual diffs or API monitoring. Require self-hosting and maintenance for anything beyond basic text checks.

Browser extensions

Run in your browser tab. Checks stop when your browser is closed. No server-side monitoring, limited alert options, and no team features. Suitable for personal, low-stakes use only.

Enterprise platforms

Feature-rich but expensive and complex. Often require annual contracts, onboarding calls, and dedicated account managers. Built for large organizations with big budgets and long procurement cycles.

Feature	OnChange	Free tools	Extensions	Enterprise
Visual screenshot diffs
CSS selector targeting
API/JSON monitoring
Sub-minute check intervals
Slack & Discord alerts
Email notifications
Webhook integrations
REST API access
AI-powered change summaries
Team collaboration
Unlimited history
No browser required
Free tier available
No code required
Priority support

Comparison based on typical capabilities in each category. Individual tools may vary.

Why teams choose OnChange

Professional features, fair pricing

Get visual diffs, API monitoring, and sub-minute checks without enterprise pricing. Start free and scale as you grow.

Server-side, always on

Monitors run on our infrastructure 24/7. No browser extensions to keep open, no scripts to maintain, no self-hosting required.

Developer-friendly API

Full REST API for programmatic access. Create monitors, pull change history, and build automations on top of OnChange.

Minutes to set up

Paste a URL, choose your settings, and you're monitoring. No onboarding calls, no procurement cycles, no sales process.

Try OnChange free

No credit card required. Free tier includes 5 monitors.