---
title: "Nanobrowser"
pageType: "tool-profile"
schemaVersion: "1.0"
snapshotId: "tv-20260915-f4c107995a2e"
generatedAt: "2026-09-15T07:02:20.000Z"
canonicalUrl: "https://toolvitals.com/tools/nanobrowser/"
jsonUrl: "https://toolvitals.com/api/agent/tools/nanobrowser"
indexable: true
---

# Nanobrowser

Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Operator.

## Decision context

- Status: critical
- ToolVitals score: 31/100
- Health score: 41/100
- Shipping score: 17/100
- Score mode: verdict
- Data confidence: 90/100
- Source coverage: 80/100
- Last evidence check: 2026-09-15

## Classification

- Use case: Browser Automation (browser-automation)
- Category: Automation (automation)
- Tool mode: Source-visible project
- Openness: OSI-approved OSS
- License: Apache-2.0
- Tags: open-source, agent, ai, ai-agents, ai-tools, automation, browser, browser-automation, browser-use, chrome-extension, comet, dia, extension, manus, mariner, multi-agent

## Public repository signals

- Repository: [nanobrowser/nanobrowser](https://github.com/nanobrowser/nanobrowser)
- Stars: 13793 (adoption context only)
- Forks: 1453
- Open issues: 81
- Last commit date: 2026-08-19
- Releases in 90 days: 0

## Source receipts

- [Official website](https://nanobrowser.ai/) — checked 2026-09-15
- [Source repository](https://github.com/nanobrowser/nanobrowser) — checked 2026-09-15

## Discovery status

- Search indexable: yes
- Reason: sufficient tool evidence

## Interpretation limits

- ToolVitals scores summarize bounded public maintenance, shipping, openness, and evidence signals. They are not user-review ratings.
- GitHub stars and related popularity metrics are adoption context, not quality evidence.
- Missing values mean not collected or not confidently established; they do not mean zero.
- Public signals do not prove security, uptime, support quality, customer satisfaction, or production suitability.
- Verify material decisions against the linked first-party sources and your own requirements.