# facebookarchive/fb-flo

A Chrome extension that lets you modify running apps without reloading them.

Repository: https://github.com/facebookarchive/fb-flo
Canonical: https://ross.abutalabs.com/products/fb-flo
Homepage: https://facebookarchive.github.io/fb-flo/
Language: JavaScript
License: NOASSERTION
License Family: other
Archived: true
Last push: 2015-12-15T20:55:34+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4504, "days_push": 3914, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1679, forks 86 (observed 2026-08-28T04:05:21.359739+00:00)

## What it is
fb-flo is a Chrome extension plus a Node.js server that lets developers modify running web apps without reloading, live-editing JavaScript, CSS, images, and other static resources. It integrates with arbitrary build systems and editors by watching source files and pushing updated resources to the browser.

## Use cases
- live edit JavaScript and CSS in a running app without reloading
- integrate hot reloading into a complex build step like browserify bundling
- develop on a remote machine and push changes to a local browser
- use my own editor instead of browser dev tools for live editing
- live update images and other static resources in the browser

## When to avoid
- starting a new project - the project is unmaintained and modern tooling (webpack HMR, Vite, Browsersync) supersedes it
- you need support for current Chrome extension APIs
- you need cross-browser live reload

## Facets
- artifact type: plugin
- maturity: abandoned
- function: developer-tools, build-tool
- domain: web-development, frontend, developer-tools
- platform: browser-extension, browser
- tags: live-reload, hot-reload, chrome-extension, live-editing, deprecated, nodejs

## Member repositories
- facebookarchive/fb-flo (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:21.359739+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 2026-08-30T03:41:30.928329+00:00, confidence not recorded.
  - readme: https://github.com/facebookarchive/fb-flo (fetched 2026-08-28T04:05:21.359739+00:00, sha 48466f4d99b8)
  - homepage: https://facebookarchive.github.io/fb-flo/ (fetched 2026-08-29T11:15:03.093928+00:00, sha fce3f4145512)
- Data as of 2026-08-30T08:39:29.467469+00:00.