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bb

A local-first IDE that runs and coordinates multiple coding agents.

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Details checkedReviewed 2026-09-29

Decide at a glance

Best for

Running coding agents in threads across a local project.

Requires setup

Pricing, with context

bb is free and open source; each connected coding agent uses its own provider subscription or API plan, billed separately.

Official pricing ↗

Pricing checked:

Keep in mind

Model-provider subscriptions and usage are billed separately

Check the evidence →
bb website preview
Official website screenshot ↗2026-09-29

Is it a fit?

Best for

Running coding agents in threads across a local project.

Think twice if

A hosted coding service without local setup or provider subscriptions.

What it can help you do

Fix bugs in an existing project

bb launches multiple coding agents and lets one agent spawn and manage another.

Prepare: A repository and a bounded development task
Get: Agent threads, code changes and reviewable work
Your part: Review diffs and run project checks before merging

Fix a website →

Where you still take over

  • Review diffs and run project checks before merging

Limits to know

  • Model-provider subscriptions and usage are billed separately
  • Local installation and project access are required

From input to output

What you provide

  • A repository and a bounded development task

What you get

  • Agent threads, code changes and reviewable work

How to start

Have these ready

  • A supported computer and provider credentials or subscriptions
  1. Install bb.
  2. Open a repository and choose an agent.
  3. Give it a small task and inspect the diff.

Pricing, with context

bb is free and open source; each connected coding agent uses its own provider subscription or API plan, billed separately.

Official pricing ↗

Pricing checked:

Published prices are a snapshot. Confirm billing cycle, taxes and current allowances with the provider.

Evidence & sources

This is an official-source review, not a hands-on test of bb. Vendor descriptions and demos are evidence of advertised features, not independent proof of results. “Best for” and review guidance are editorial judgments based on those sources.
  • bb official website ↗https://getbb.app/

    Lists Claude Code, Codex and other agents, threaded delegation and local-first setup.

Frequently asked questions

What does bb do?

A local-first IDE that runs and coordinates multiple coding agents.

How much does bb cost?

bb is free and open source; each connected coding agent uses its own provider subscription or API plan, billed separately.

What should I check before using bb?

Model-provider subscriptions and usage are billed separately

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Compare their inputs, outputs and setup requirements before choosing.