{"adoption": {"forks": 1240, "observed_at": "2026-08-28T04:10:19.757635+00:00", "stars": 8234}, "canonical_url": "https://ross.abutalabs.com/products/viewerjs", "card": {"archived": false, "artifact_type": "library", "description": "JavaScript image viewer.", "domain": ["frontend", "web-development", "media"], "enriched": true, "function": ["image-processing", "ui-components"], "health_score": 99, "homepage": "https://fengyuanchen.github.io/viewerjs/", "language": "JavaScript", "license": "MIT", "license_family": "permissive", "maturity": "stable", "member_repos": ["fengyuanchen/viewerjs", "fengyuanchen/viewer"], "name": "Viewer.js", "platform": ["browser"], "pushed_at": "2026-08-23T09:42:33+00:00", "repo": "fengyuanchen/viewerjs", "stars": 8234, "tags": ["image-viewer", "lightbox", "zoom", "rotate", "gallery", "touch-support", "jquery-plugin", "javascript", "nodejs"], "topics": ["javascript", "viewer", "image", "image-viewer"], "urls": [{"kind": "homepage", "url": "https://fengyuanchen.github.io/viewerjs/"}], "use_cases": ["display images in a lightbox with zoom and rotate", "build an image gallery with fullscreen viewing", "add touch-friendly image viewing to a mobile web page", "view a list of images with prev/next navigation", "embed an inline zoomable image viewer in a web app", "flip and rotate product photos in a catalog"], "what_it_is": "Viewer.js is a JavaScript library for viewing images in the browser with zoom, rotation, flip, move, and keyboard/touch support. It works in modal or inline modes and includes a jQuery plugin wrapper.", "when_to_avoid": ["you need to view non-image formats like PDFs or videos", "you need a full image editor with cropping or annotation", "you are not working in a browser/frontend environment"], "when_to_choose": ["you need a lightweight, dependency-free image viewer for the browser", "you want zoom, rotate, flip, and keyboard/touch support out of the box", "you need both modal and inline viewing modes"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/repos/fengyuanchen/viewerjs", "repo": "fengyuanchen/viewerjs", "role": "main", "score": 95}, {"path": "/repos/fengyuanchen/viewer", "repo": "fengyuanchen/viewer", "role": "plugin", "score": 10}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:10:19.757635+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T17:29:30.283992+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "bfaed70280f412d2686d6de4d2cde78b0674cb638ef6c21cd2486525c809a422", "fetched_at": "2026-08-28T04:10:19.757635+00:00", "kind": "readme", "missing": false, "url": "https://github.com/fengyuanchen/viewerjs"}, {"content_hash": "f9de342fc58676ab7f736a5e9da9105a66375124b6afe8149d4cce32e56fe1c1", "fetched_at": "2026-08-29T08:28:42.630453+00:00", "kind": "homepage", "missing": false, "url": "https://fengyuanchen.github.io/viewerjs/"}, {"content_hash": "4c9106c23e77e0e413169859cd34eb0c67689906c8fc5da815cef11c00439fef", "fetched_at": "2026-08-29T08:28:42.639966+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/viewerjs"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:10:19.757635+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T17:29:30.283992+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "bfaed70280f412d2686d6de4d2cde78b0674cb638ef6c21cd2486525c809a422", "fetched_at": "2026-08-28T04:10:19.757635+00:00", "kind": "readme", "missing": false, "url": "https://github.com/fengyuanchen/viewerjs"}, {"content_hash": "f9de342fc58676ab7f736a5e9da9105a66375124b6afe8149d4cce32e56fe1c1", "fetched_at": "2026-08-29T08:28:42.630453+00:00", "kind": "homepage", "missing": false, "url": "https://fengyuanchen.github.io/viewerjs/"}, {"content_hash": "4c9106c23e77e0e413169859cd34eb0c67689906c8fc5da815cef11c00439fef", "fetched_at": "2026-08-29T08:28:42.639966+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/viewerjs"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T17:29:30.283992+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "bfaed70280f412d2686d6de4d2cde78b0674cb638ef6c21cd2486525c809a422", "fetched_at": "2026-08-28T04:10:19.757635+00:00", "kind": "readme", "missing": false, "url": "https://github.com/fengyuanchen/viewerjs"}, {"content_hash": "f9de342fc58676ab7f736a5e9da9105a66375124b6afe8149d4cce32e56fe1c1", "fetched_at": "2026-08-29T08:28:42.630453+00:00", "kind": "homepage", "missing": false, "url": "https://fengyuanchen.github.io/viewerjs/"}, {"content_hash": "4c9106c23e77e0e413169859cd34eb0c67689906c8fc5da815cef11c00439fef", "fetched_at": "2026-08-29T08:28:42.639966+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/viewerjs"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:10:19.757635+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:10:19.757635+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:10:19.757635+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T17:29:30.283992+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "bfaed70280f412d2686d6de4d2cde78b0674cb638ef6c21cd2486525c809a422", "fetched_at": "2026-08-28T04:10:19.757635+00:00", "kind": "readme", "missing": false, "url": "https://github.com/fengyuanchen/viewerjs"}, {"content_hash": "f9de342fc58676ab7f736a5e9da9105a66375124b6afe8149d4cce32e56fe1c1", "fetched_at": "2026-08-29T08:28:42.630453+00:00", "kind": "homepage", "missing": false, "url": "https://fengyuanchen.github.io/viewerjs/"}, {"content_hash": "4c9106c23e77e0e413169859cd34eb0c67689906c8fc5da815cef11c00439fef", "fetched_at": "2026-08-29T08:28:42.639966+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/viewerjs"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:10:19.757635+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:10:19.757635+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T17:29:30.283992+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "bfaed70280f412d2686d6de4d2cde78b0674cb638ef6c21cd2486525c809a422", "fetched_at": "2026-08-28T04:10:19.757635+00:00", "kind": "readme", "missing": false, "url": "https://github.com/fengyuanchen/viewerjs"}, {"content_hash": "f9de342fc58676ab7f736a5e9da9105a66375124b6afe8149d4cce32e56fe1c1", "fetched_at": "2026-08-29T08:28:42.630453+00:00", "kind": "homepage", "missing": false, "url": "https://fengyuanchen.github.io/viewerjs/"}, {"content_hash": "4c9106c23e77e0e413169859cd34eb0c67689906c8fc5da815cef11c00439fef", "fetched_at": "2026-08-29T08:28:42.639966+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/viewerjs"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:10:19.757635+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:10:19.757635+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:10:19.757635+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T17:29:30.283992+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "bfaed70280f412d2686d6de4d2cde78b0674cb638ef6c21cd2486525c809a422", "fetched_at": "2026-08-28T04:10:19.757635+00:00", "kind": "readme", "missing": false, "url": "https://github.com/fengyuanchen/viewerjs"}, {"content_hash": "f9de342fc58676ab7f736a5e9da9105a66375124b6afe8149d4cce32e56fe1c1", "fetched_at": "2026-08-29T08:28:42.630453+00:00", "kind": "homepage", "missing": false, "url": "https://fengyuanchen.github.io/viewerjs/"}, {"content_hash": "4c9106c23e77e0e413169859cd34eb0c67689906c8fc5da815cef11c00439fef", "fetched_at": "2026-08-29T08:28:42.639966+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/viewerjs"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:10:19.757635+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:10:19.757635+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T17:29:30.283992+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "bfaed70280f412d2686d6de4d2cde78b0674cb638ef6c21cd2486525c809a422", "fetched_at": "2026-08-28T04:10:19.757635+00:00", "kind": "readme", "missing": false, "url": "https://github.com/fengyuanchen/viewerjs"}, {"content_hash": "f9de342fc58676ab7f736a5e9da9105a66375124b6afe8149d4cce32e56fe1c1", "fetched_at": "2026-08-29T08:28:42.630453+00:00", "kind": "homepage", "missing": false, "url": "https://fengyuanchen.github.io/viewerjs/"}, {"content_hash": "4c9106c23e77e0e413169859cd34eb0c67689906c8fc5da815cef11c00439fef", "fetched_at": "2026-08-29T08:28:42.639966+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/viewerjs"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T17:29:30.283992+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "bfaed70280f412d2686d6de4d2cde78b0674cb638ef6c21cd2486525c809a422", "fetched_at": "2026-08-28T04:10:19.757635+00:00", "kind": "readme", "missing": false, "url": "https://github.com/fengyuanchen/viewerjs"}, {"content_hash": "f9de342fc58676ab7f736a5e9da9105a66375124b6afe8149d4cce32e56fe1c1", "fetched_at": "2026-08-29T08:28:42.630453+00:00", "kind": "homepage", "missing": false, "url": "https://fengyuanchen.github.io/viewerjs/"}, {"content_hash": "4c9106c23e77e0e413169859cd34eb0c67689906c8fc5da815cef11c00439fef", "fetched_at": "2026-08-29T08:28:42.639966+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/viewerjs"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T17:29:30.283992+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "bfaed70280f412d2686d6de4d2cde78b0674cb638ef6c21cd2486525c809a422", "fetched_at": "2026-08-28T04:10:19.757635+00:00", "kind": "readme", "missing": false, "url": "https://github.com/fengyuanchen/viewerjs"}, {"content_hash": "f9de342fc58676ab7f736a5e9da9105a66375124b6afe8149d4cce32e56fe1c1", "fetched_at": "2026-08-29T08:28:42.630453+00:00", "kind": "homepage", "missing": false, "url": "https://fengyuanchen.github.io/viewerjs/"}, {"content_hash": "4c9106c23e77e0e413169859cd34eb0c67689906c8fc5da815cef11c00439fef", "fetched_at": "2026-08-29T08:28:42.639966+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/viewerjs"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T17:29:30.283992+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "bfaed70280f412d2686d6de4d2cde78b0674cb638ef6c21cd2486525c809a422", "fetched_at": "2026-08-28T04:10:19.757635+00:00", "kind": "readme", "missing": false, "url": "https://github.com/fengyuanchen/viewerjs"}, {"content_hash": "f9de342fc58676ab7f736a5e9da9105a66375124b6afe8149d4cce32e56fe1c1", "fetched_at": "2026-08-29T08:28:42.630453+00:00", "kind": "homepage", "missing": false, "url": "https://fengyuanchen.github.io/viewerjs/"}, {"content_hash": "4c9106c23e77e0e413169859cd34eb0c67689906c8fc5da815cef11c00439fef", "fetched_at": "2026-08-29T08:28:42.639966+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/viewerjs"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 99, "longevity": 100, "rhythm": 87}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 3905, "days_push": 10, "days_rel": 11, "gap_med": 33, "n_releases_24m": 4}, "score": 95, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}