gifuct-js

This file - github

<script src="https://unpkg.com/gifuct-js/dist/gifuct.min.js"></script> <input type="file" id="gifFile" accept=".gif" /> <pre id="out"></pre> <script> document.getElementById('gifFile').addEventListener('change', async (e) => { const file = e.target.files[0]; if (!file) return; const buf = await file.arrayBuffer(); const parsed = gifuct.parseGIF(buf); const h2g2exts = parsed.blocks.filter(b => b.type === 'application' && b.identifier === 'H2G2' ); if (h2g2exts.length) { const data = new Uint8Array(h2g2exts[0].applicationData || []); const text = new TextDecoder().decode(data); document.getElementById('out').textContent = `H2G2 data: ${text}`; } else { document.getElementById('out').textContent = 'No H2G2 App Extension found'; } }); </script>

https://david.codefish.club/assets/gifuct-js/demo/index.html HEIGHT 500 Romove `/demo/` path and try horses.gif, or jblack.gif, or dog.gif Downloaded gifuct-js project from github

https://www.matthewflickinger.com/lab/whatsinagif/index.html HEIGHT 600 From matthewflickinger.com

gifuct-js/demo