Tapping a post on a phone now opens a real feed page — header, media, actions, caption, next post peeking in below — scrolled with the browser's own vertical scrolling rather than swipe gestures. Desktop keeps the modal, where a centred sheet with side arrows suits a pointer. Only a window of posts is mounted: a profile here holds up to 1129 posts and mounting them all would mean as many full-size images. The window grows in both directions as you scroll. Growing upwards shifts everything below it, so the scroll offset is corrected in the same frame, before paint — measured against the real archive, an anchored post moves exactly one screen per scroll with no jump. Only the post crossing the viewport centre plays its video; the rest stay paused, so a feed of reels doesn't play ten at once. The URL tracks that same post, so scrolling updates /<archive>/p/<shortcode>/ the way Instagram does, and the back button returns to the grid with its scroll position intact. Feed video sizes to the container width rather than its intrinsic size: a <video> reports 300x150 until metadata loads, which made it render narrow and then jump to full width. It also gets a taller height ceiling than the modal so ordinary portrait media fills the width instead of sitting in side bars. The carousel is extracted into a shared MediaCarousel used by both surfaces, so horizontal paging behaves identically; touch-action keeps vertical scrolling passing through to the feed. PostModal loses its now-dead mobile swipe branch. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011uBWhwV3wFQ5MBCcMHHem7
InstaArchive Viewer
A high-performance React PWA for browsing archived Instagram data with a native-feeling interface. Supports both official Instagram exports and Instaloader archives.
Features
- Advanced Carousel: Seamless, zero-latency transitions between slides with intelligent preloading. Navigating between different posts is now near-instant thanks to inter-post background preloading.
- High-Res Performance: Handles 50MP+ images effortlessly using a background Web Worker and a memory-safe serial processing queue.
- Persistent Local Caching: Uses IndexedDB to store parsed archives and generated thumbnails. Local folders now load instantly from cache on return visits without needing to re-upload files.
- Permalinks: State is synchronized with the URL, allowing you to share direct links to archives, tabs, or specific posts. Navigating back to the explorer cleans up URL parameters automatically.
- Glassy Scanning UI: A refined, translucent white terminal experience with flicker-free, double-buffered dynamic blurred backgrounds.
- PWA with Auto-Update: Fully offline-capable and installable. Clients automatically receive updates when a new version is deployed to the server.
- Local Privacy: All processing is done client-side. Even when using the self-hosted version, your media is processed locally in your browser and never uploaded.
- Smart Fallbacks: Automatically detects usernames from folder names and uses the oldest archive image as a profile picture if one is missing.
- Customizable Grid: 1:1 or 3:4 aspect ratios with adjustable "bumps" for aesthetic alignment.
- Story Viewer: Native-like story experience with segmented progress bars, auto-playback, and audio controls.
- Navigation Protection: Intercepts accidental browser "Back" or "Refresh" actions to protect your current session.
Deployment
Docker (Recommended)
The easiest way to run InstaArchive is using Docker.
docker run -d \
-p 3000:3000 \
-v /path/to/your/archives:/archives:ro \
ghcr.io/ergosteur/instaarchive-viewer:latest
Note for Linux/SELinux users: If you see "Permission Denied" in the logs, append
,zto your volume mount:-v /path/to/archives:/archives:ro,z
Docker Compose
Create a compose.yml file:
services:
instaarchive:
image: ghcr.io/ergosteur/instaarchive-viewer:latest
ports:
- "3000:3000"
volumes:
- ./archives:/archives:ro,z # ,z handles SELinux permissions
Troubleshooting Permissions
If the app shows "No Archives Found" and logs EACCES: permission denied:
- Check Directory Permissions: Ensure the archive folder is world-readable:
chmod -R 755 /path/to/archives - SELinux (Fedora/RHEL/CentOS): Use the
:zflag in your volume mount as shown above. - User Mapping: The container runs as the non-root
nodeuser (UID 1000). If your archives are readable only by another account, run as that user instead — the container needs to list the archive directory, so--x(traverse-only) permissions are not enough:In Compose:docker run --user $(stat -c '%u:%g' /path/to/archives) ...services: instaarchive: user: "1234:1234" # a UID that can read your archives
Archive Index
On first start the server walks the archive root once and caches the result,
keyed by directory mtime. This matters on network storage: for a 110k-file
archive root, listing went from ~52s per request to ~0.1s. Mount a volume at
/cache (or set CACHE_DIR) so the index survives restarts, otherwise it is
rebuilt on every start.
Supported Archive Structure
Place your archive folders inside the mounted /archives directory. The directory name will be used as the account username.
Example Structure:
archives/
├── wanderlust_explorer/ # Instaloader format
│ ├── 2024-01-01_12-00-00_UTC.jpg
│ ├── 2024-01-01_12-00-00_UTC.json.xz
│ └── wanderlust_explorer_profile_pic.jpg
└── pixel_architect/ # Instagram Export format
├── 2023-12-25_pixel_architect - post_123.jpg
├── 2023-12-25_pixel_architect - post_123.json
└── pixel_architect.jpg
Local Development
Prerequisites: Node.js (LTS recommended)
- Install dependencies:
npm install - Start dev server:
npm run dev(Frontend on port 3000) - Start local backend:
npm run server(Optional, serves./_sample-archiveson port 3001) - Build production:
npm run build(Generates./distfor frontend and./dist-serverfor the API)