# wilsonzlin/fastrender

Experimental new browser engine

Repository: https://github.com/wilsonzlin/fastrender
Canonical: https://ross.abutalabs.com/products/fastrender
Homepage: https://cursor.com/blog/scaling-agents
Language: HTML
License Family: other
Last push: 2026-01-18T22:34:51+00:00

## Health v2 (maintenance only)
Score: 45/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 63, release rhythm 35, longevity 20
- inputs: {"age_days": 290, "days_push": 227, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1571, forks 105 (observed 2026-08-28T04:05:05.414666+00:00)

## What it is
FastRender is an experimental browser rendering engine written in Rust that parses HTML/CSS, computes styles, performs layout (block, inline, flexbox, grid, tables), and paints pixels, with JavaScript execution via an embedded JS engine. It includes a desktop browser shell, OS-level sandboxing, and is under heavy development with unstable APIs.

## Use cases
- render html and css pages without a full browser
- test css layout algorithms like flexbox and grid
- embed a lightweight html renderer in a rust application
- study how a browser engine works internally
- render web content in a sandboxed environment
- experiment with an alternative browser engine

## When to choose
- you need a lightweight, embeddable HTML/CSS renderer in Rust
- you want to study or contribute to browser engine internals
- you're doing research on rendering or layout algorithms
- you need a minimal browser for testing simple web content

## When to avoid
- you need a production browser with full web standards support
- you need stable APIs for a long-term project
- you need full JavaScript ecosystem compatibility
- you need accessibility features or extensive web platform support

## Facets
- artifact type: application
- maturity: experimental
- function: parser, graphics, gui, interpreter
- domain: web-development, developer-tools, graphics
- platform: windows, rust, cross-platform
- tags: browser-engine, html-parsing, css-layout, rendering, web-standards, research-project, linux, macos

## Member repositories
- wilsonzlin/fastrender (main) score 45

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:05.414666+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 2026-08-30T03:58:27.283264+00:00, confidence not recorded.
  - readme: https://github.com/wilsonzlin/fastrender (fetched 2026-08-28T04:05:05.414666+00:00, sha ae7320928960)
  - homepage: https://cursor.com/blog/scaling-agents (fetched 2026-08-29T11:28:11.095722+00:00, sha c4384cf2a6b4)
  - site_page: https://cursor.com/docs (fetched 2026-08-29T11:28:11.109917+00:00, sha 1d118e30b13a)
  - site_page: https://cursor.com/pricing (fetched 2026-08-29T11:28:11.105547+00:00, sha d62f5a421760)
  - site_page: https://cursor.com/changelog (fetched 2026-08-29T11:28:11.107635+00:00, sha 06a7d8d5dcbe)
  - site_page: https://cursor.com/en-US/pricing (fetched 2026-08-29T11:28:11.111898+00:00, sha d62f5a421760)
  - site_page: https://cursor.com/en-US/changelog (fetched 2026-08-29T11:28:11.113956+00:00, sha 06a7d8d5dcbe)
- Data as of 2026-08-30T08:39:29.467469+00:00.