# LadybirdBrowser/ladybird

Truly independent web browser

Repository: https://github.com/LadybirdBrowser/ladybird
Canonical: https://ross.abutalabs.com/products/ladybird
Homepage: https://ladybird.org
Language: C++
License: BSD-2-Clause
License Family: permissive
Topics: browser, browser-engine
Last push: 2026-08-27T00:30:56+00:00

## Health v2 (maintenance only)
Score: 68/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 58
- inputs: {"age_days": 825, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 65849, forks 3136 (observed 2026-08-28T04:12:20.636417+00:00)

## What it is
Ladybird is a truly independent web browser built on a novel engine written from scratch based on web standards, with no forks of existing engines. It uses a multi-process, sandboxed architecture and is developed by a non-profit, currently in pre-alpha with an Alpha targeted for 2026.

## Use cases
- browse the web with a browser not controlled by a big tech company
- test web standards compliance against an independent engine
- contribute to or study a from-scratch browser engine codebase
- develop and debug web content with a new rendering engine
- run a privacy-focused browser with no monetization incentives

## When to choose
- you want to support or develop an independent, non-fork browser engine
- you are a developer interested in browser internals, JS engines, or rendering
- you need a cross-platform browser on Linux, macOS, or Windows (WSL2) for testing

## When to avoid
- you need a daily-driver browser with full modern web compatibility today
- you require extensive extension ecosystem support
- you need production stability or enterprise support

## Facets
- artifact type: application
- maturity: experimental
- function: browser-extension, gui, interpreter, graphics, security, networking
- domain: web-development, cross-platform, developer-tools
- platform: windows, cross-platform
- tags: web-browser, browser-engine, from-scratch, serenityos, c-plus-plus, rust, web-standards, non-profit, pre-alpha, linux, macos

## Member repositories
- LadybirdBrowser/ladybird (main) score 68

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:20.636417+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:17:23.740224+00:00, confidence not recorded.
  - readme: https://github.com/LadybirdBrowser/ladybird (fetched 2026-08-28T04:12:20.636417+00:00, sha 7c1ae5c05623)
  - homepage: https://ladybird.org (fetched 2026-08-28T17:53:43.178846+00:00, sha 6a78a1f1cc43)
- Data as of 2026-08-30T08:39:29.467469+00:00.