# imsky/holder

:city_sunrise: Client-side image placeholders.

Repository: https://github.com/imsky/holder
Canonical: https://ross.abutalabs.com/products/holder
Homepage: http://holderjs.com
Language: JavaScript
License: MIT
License Family: permissive
Topics: hacktoberfest
Last push: 2023-10-07T03:19:47+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": 5195, "days_push": 1061, "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 5798, forks 585 (observed 2026-08-28T04:09:29.719684+00:00)

## What it is
Holder.js is a client-side JavaScript library that renders image placeholders in the browser using SVG or Canvas. It generates customizable placeholder images (size, colors, text, themes) directly from URL-based directives without extra network requests.

## Use cases
- render image placeholders in a web page during development
- generate placeholder images with custom size and colors client-side
- replace missing images with SVG placeholders
- create mockup images for Bootstrap layouts
- add placeholder images without extra HTTP requests
- customize placeholder text, fonts, and themes in the browser

## When to choose
- you need lightweight, dependency-free image placeholders rendered entirely client-side
- you want URL-driven customization of size, colors, text, and themes
- you are building UI mockups or prototypes that need placeholder images
- you want to avoid 404s and extra network requests for placeholder images

## When to avoid
- you need real stock or generated photos as placeholders (use a placeholder image service instead)
- you need server-side or build-time image generation
- your project requires actively maintained dependencies with frequent updates

## Facets
- artifact type: library
- maturity: maintenance
- function: image-processing, ui-components, developer-tools
- domain: web-development, frontend, graphics
- platform: browser
- tags: image-placeholders, svg, canvas, frontend-development, holderjs, nodejs, web-server

## Member repositories
- imsky/holder (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:29.719684+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 2026-08-29T17:52:46.729309+00:00, confidence not recorded.
  - readme: https://github.com/imsky/holder (fetched 2026-08-28T04:09:29.719684+00:00, sha 0064f2e10834)
  - homepage: http://holderjs.com (fetched 2026-08-29T08:48:12.441602+00:00, sha 6ab92ae24a8e)
- Data as of 2026-08-30T08:39:29.467469+00:00.