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How does Customaise compare?

Honest side-by-sides with the products people already know. No marketing spin, no "we're better at everything." Each comparison ends with when to reach for which.

Customaise vs

Tampermonkey

The standard userscript manager

The userscript you didn't bother writing, built from a sentence. Plus full .user.js parity for the library you already have, AgentScripts for the agent era, and @grant CM_devtools for the full Chrome DevTools Protocol on any script.

Customaise vs

Claude for Chrome

Anthropic's browser agent extension

Claude calls it too

tool surface, not a rival agent

Faster on repeats

10-100ms per typed call

Cross-agent

same scripts, every agent

A tool-surface layer below the agent, not a rival to it. Claude itself calls AgentScripts via Claude Code or Claude desktop, and the same typed tools work for any other MCP-capable agent. Plus @grant CM_devtools for deeper-than-DOM capability that Claude for Chrome does not expose.

Customaise vs

Computer Use

Vision-LLM browser agents from Anthropic and OpenAI

Pennies per call

your Max cap stays intact

One typed call

send args, read JSON

Deterministic

same call, same JSON, every run

A single Computer Use session can drain your Max subscription quota in hours. AgentScripts run for a tiny fraction of that on the same workload.

Customaise vs

Playwright

Headless server-run browser automation

Composable

one script, N workflows

Clean JSON returns

no per-step page tax

CDP in your tab

Full DevTools Protocol on the signed-in session

Playwright stays the standard for CI; Playwright MCP is the lane Customaise displaces. Microsoft's own README recommends the CLI over the MCP wrapper for coding agents. AgentScripts give you the same write-once-then-cheap shape as the CLI, plus runtime composability the CLI cannot offer. And full Chrome DevTools Protocol via CM_devtools, in the user's signed-in tab.

Customaise vs

Browser Use

Open-source library + cloud agent platform

Typed tools

you define them, agent calls them

CDP in your tab

Full DevTools Protocol on the signed-in session

No infra

no per-session billing

Browser Use is a serious cloud agent platform (V3 Agent custom models, Fortune 500 customers, $0.02/hr browser sessions). Customaise is the other shape: typed tools in the user's real signed-in tab, with full Chrome DevTools Protocol on top via CM_devtools.

Customaise vs

Browserbase

Agent-browser infrastructure platform

In your Chrome

extension, not managed cloud

CDP in your tab

Full DevTools Protocol on the signed-in session

No infra

no per-session billing

Browserbase is the production cloud agent-browser platform (10K+ companies including Microsoft + DeepMind + Ramp). Customaise is the other shape: typed tools in the user's real signed-in tab, with full Chrome DevTools Protocol on top via CM_devtools.

Customaise vs

AI Browser

ChatGPT Atlas, Perplexity Comet, Dia

Your choice

where the page goes

Stay in Chrome

extension, not a new browser

Typed tools

not vision-loop guessing

Bring an agent to the Chrome you already have. Atlas is being absorbed into an OpenAI superapp; Comet has usage-limit complaints; Dia is macOS-only. Customaise stays in your Chrome. Plus @grant CM_devtools, which opens the Chrome DevTools Protocol for scripts.

Customaise vs

Claude Skills

Markdown skill bundles for Claude

Reviewed

every Marketplace listing

Declared

tool surface in plain language

Gated

per call, at runtime

Reviewed before listing. Declared at the top. Gated at runtime. Defenses that don't depend on you reading the code.