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Overview

Refrain is a self-healing browser automation framework. AI generates reproducible runbooks, reruns execute with zero AI tokens, and AI agents auto-patch your automation when UIs change. Traditional browser automation (Playwright, Selenium) breaks with every UI change. Autonomous AI agents produce different results every time. Refrain combines the best of both:
  1. AI generates a reproducible runbook by exploring your web app
  2. Zero AI cost on reruns — deterministic execution needs no tokens
  3. Self-healing — when UIs change, AI agents detect selector drift and auto-patch your runbooks
  4. Human-in-the-Loop — Slack / Teams / Discord approval workflows keep you in control

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Three interfaces

CLI

Generate and execute runbooks from the command line. Ideal for developers and CI/CD pipelines.

SDK

TypeScript SDK for programmatic access. Embed browser automation into your applications.

Web Console

Web-based management UI. Create, schedule, and monitor runbook executions without code.

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How it works

1

Set a goal

Tell AI what you want to accomplish: “Log in and export the dashboard CSV”
2

AI builds a runbook

AI explores your app, records each action, reviews the steps, and outputs a reproducible runbook.
3

Execute deterministically

The runbook executes with zero AI tokens. Whether you run it once or a hundred times, the cost stays at zero.
4

Self-healing when UIs change

When the target app updates its UI, AI agents detect selector drift and auto-patch your runbooks. No manual maintenance — your automation keeps running.

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Key features

FeatureDescription
AI-built runbooksSet a goal and AI autonomously builds reproducible browser operations. No code, no manual scripting.
Zero rerun costGenerated runbooks execute without AI tokens. 100% cost reduction on every rerun.
Reproducible & auditableRunbooks are structured artifacts you can version-control, review in PRs, and audit. Same runbook, same result.
Self-healing automationWhen UIs change, AI agents detect selector drift and auto-patch your runbooks. Multi-layered self-healing keeps your automation running without manual intervention.
Human-in-the-LoopBuilt-in Slack, Teams, and Discord approval workflows with native HITL governance.
BYOK — Bring Your Own KeyUse your own AI keys with Anthropic, OpenAI, Bedrock, Vertex AI, Azure OpenAI, or any compatible endpoint. Your data is never used for model training, and token consumption is dramatically reduced.

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Next steps

Quickstart

Get up and running in 5 minutes.

Plan & Pricing

Compare features across tiers.