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Devsnoop

devsnoop.com

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What it does

DevSnoop is a local Chrome extension and native host that provides coding agents with structured browser inspection, interaction, and debugging capabilities via a local HTTP API on port 9400.

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Two ratings

SiteList review score

Top-tier technical utility for AI browser automation. Design execution lacks mobile responsiveness and accessibility polish.

Reviewed on Aug 28, 2026

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Screenshots

Captured during our latest review on Aug 28, 2026

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Pricing details

One-time license fee. No subscriptions, usage limits, or seat limits. Billed one time.

PlanPriceDetails
DevSnoop$29 one time per license

Everything included No per-request fees · No token metering · No seat limit

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Key features

  • page_summary

    inspection

    Reads full page structure, layout regions, interactive elements, and semantic context for minimal token usage.

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  • click/fill/scroll/hover

    interaction

    Allows agents to drive browser interactions like a user by targeting selectors or coordinates.

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  • get_network/get_logs

    debugging

    Captures console logs, network requests, and redacted payloads automatically for debugging.

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  • diff

    verification

    Compares DOM snapshots after actions or hot reloads to show exactly what changed without re-reading the page.

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Who it’s for

  • Frontend implementation checks

    Verifying local or staged app UI, DOM state, and network failures before editing code.

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  • Coding agent browser automation

    Enabling agents to click, fill, inspect, and debug Chrome tabs through a local HTTP API without hosted sessions.

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Integrations

  • Chrome

    browser

    Runs as a Chrome extension via Native Messaging to bridge local HTTP commands to the browser tab and profile context.

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Buyer questions

Questions buyers actually ask

Does DevSnoop send page data to external servers?

No. Everything runs locally — the extension talks to a native host on your machine via Chrome's Native Messaging.

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Is there a subscription or usage limit?

No. One-time purchase, use forever. No per-request fees, no token metering, or seat limit.

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Product FAQ information · View source

The expert review

DevSnoop scores 86/100, excelling in technical performance and audience-specific utility for AI browser automation. Its primary limitation is a weak design execution that fails mobile responsiveness standards.

86/100: high-utility developer tool with exceptional performance and minor design flaws

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Reviews are from the SiteList community. Some reviewers received incentives — disclosed in the review, always. The verdict is never for sale.

Scores across 13 dimensions

Brand & experience

Performance

Content & editorial

Trust & decision surfaces

Search & discoverability

Docs & measurement

Domain
devsnoop.com
Category
Agent tooling & MCP
Pricing
Paid · $29/mo
Platforms
desktop, api
Last checked
Aug 28, 2026
Public dimensions
13

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