# rstacruz/nprogress

For slim progress bars like on YouTube, Medium, etc

Repository: https://github.com/rstacruz/nprogress
Canonical: https://ross.abutalabs.com/products/nprogress
Homepage: http://ricostacruz.com/nprogress
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2022-06-04T00:38:39+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4761, "days_push": 1552, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 26377, forks 1772 (observed 2026-08-28T04:11:46.911067+00:00)

## What it is
NProgress is a tiny JavaScript library that renders a slim, YouTube-style progress bar with realistic trickle animations. It is controlled via simple start/done/set/inc calls and is popular for Ajax-heavy apps, Turbolinks, and Pjax.

## Use cases
- show a slim loading bar during ajax requests
- add a youtube-style top progress bar to my site
- loading indicator for turbolinks page transitions
- progress bar for pjax navigation
- incremental loading bar while images load

## When to choose
- you want a minimal, dependency-free progress bar in the browser
- you need a loading indicator for Ajax, Turbolinks, or Pjax apps

## When to avoid
- you need full-featured progress components with rich UI (use a component library)
- you need progress bars outside the browser, e.g. CLI or native apps

## Facets
- artifact type: library
- maturity: maintenance
- function: ui-components, animation
- domain: frontend, web-development
- platform: browser
- tags: progress-bar, loading-indicator, vanilla-js, ajax, nodejs

## Member repositories
- rstacruz/nprogress (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:46.911067+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 2026-08-29T16:55:52.808700+00:00, confidence not recorded.
  - readme: https://github.com/rstacruz/nprogress (fetched 2026-08-28T04:11:46.911067+00:00, sha 24ce9e4230f1)
  - homepage: http://ricostacruz.com/nprogress (fetched 2026-08-29T07:52:31.159814+00:00, sha efe45faec6d4)
  - registry_npm: https://registry.npmjs.org/nprogress (fetched 2026-08-29T07:52:31.162565+00:00, sha 51c21f66a762)
- Data as of 2026-08-30T08:39:29.467469+00:00.