https://publishing.co.uk/tags/mobi/Recent content in MOBI on publishing.co.uk — Professional KDP Book FormattingHugoen-gbSat, 21 Mar 2026 00:00:00 +0000https://publishing.co.uk/guides/epub-vs-mobi-2026/Sat, 21 Mar 2026 00:00:00 +0000https://publishing.co.uk/guides/epub-vs-mobi-2026/<style> .tool-container{max-width:800px;margin:0 auto 2rem} .comparison-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;margin:1.5rem 0;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden} .comp-col{padding:0} .comp-header{padding:1.25rem;text-align:center;font-weight:700;font-size:1.1rem} .comp-header.epub{background:var(--indigo);color:var(--white)} .comp-header.mobi{background:#64748b;color:var(--white)} .comp-row{display:contents} .comp-label{grid-column:1/-1;background:#f8f5f0;padding:.6rem 1.25rem;font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);border-top:1px solid var(--border)} .comp-cell{padding:.75rem 1.25rem;font-size:.9rem;border-top:1px solid #f1f5f9} .comp-cell.yes{color:var(--emerald)} .comp-cell.no{color:var(--rose)} .comp-cell.partial{color:#d97706} .verdict-box{background:linear-gradient(135deg,#faf5ff,#f3e8ff);border:2px solid var(--indigo);border-radius:var(--radius);padding:2rem;text-align:center;margin:2rem 0} .verdict-box h3{color:var(--indigo);margin-bottom:.5rem} .verdict-box .big{font-size:1.5rem;font-weight:700;color:var(--indigo)} .decision-tree{max-width:600px;margin:2rem auto} .dt-node{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-sm);padding:1.25rem;margin:1rem 0;text-align:center;box-shadow:var(--shadow)} .dt-question{font-weight:600;font-size:1.05rem;margin-bottom:1rem} .dt-buttons{display:flex;gap:1rem;justify-content:center} .dt-btn{padding:.6rem 1.5rem;border-radius:9999px;font-weight:600;font-size:.9rem;cursor:pointer;border:2px solid var(--border);background:var(--white);transition:all var(--transition)} .dt-btn:hover{border-color:var(--indigo);color:var(--indigo)} .dt-btn.yes-btn:hover{border-color:var(--emerald);color:var(--emerald);background:#f0fdf4} .dt-btn.no-btn:hover{border-color:var(--rose);color:var(--rose);background:#fff1f2} .dt-result{background:linear-gradient(135deg,#f0fdf4,#dcfce7);border:2px solid #86efac;border-radius:var(--radius-sm);padding:1.5rem;text-align:center;margin:1rem 0;display:none} .dt-result.epub-result{background:linear-gradient(135deg,#faf5ff,#f3e8ff);border-color:#c4b5fd} .dt-result h4{margin-bottom:.5rem} .dt-result p{font-size:.9rem;color:var(--muted);margin:0} .format-card{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1rem;margin:1.5rem 0} .fc{border:1px solid var(--border);border-radius:var(--radius-sm);padding:1.25rem;text-align:center} .fc h4{font-size:.95rem;margin-bottom:.5rem} .fc .status{font-size:.82rem;padding:.2rem .6rem;border-radius:9999px;display:inline-block;margin-bottom:.5rem} .fc .status.recommended{background:#d1fae5;color:#065f46} .fc .status.accepted{background:#dbeafe;color:#1e40af} .fc .status.deprecated{background:#fee2e2;color:#991b1b} .fc p{font-size:.82rem;color:var(--muted);margin:0} .cta-box{background:linear-gradient(135deg,var(--indigo),#5b1a91);color:var(--white);border-radius:var(--radius);padding:2rem;text-align:center;margin:2.5rem 0} .cta-box h3{color:var(--white);margin-bottom:.5rem} .cta-box p{color:rgba(255,255,255,.85);margin-bottom:1rem} .cta-box .btn{background:var(--white);color:var(--indigo);padding:.75rem 2rem;border-radius:9999px;font-weight:600;text-decoration:none;display:inline-block} .related-tools{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin:1.5rem 0} .related-tool{border:1px solid var(--border);border-radius:var(--radius-sm);padding:1.25rem;text-align:center;transition:all var(--transition)} .related-tool:hover{border-color:var(--indigo);box-shadow:var(--shadow-md);transform:translateY(-2px)} .related-tool h4{font-size:.95rem;margin-bottom:.35rem} .related-tool p{font-size:.82rem;color:var(--muted);margin:0} @media(max-width:640px){.comparison-grid{grid-template-columns:1fr}.format-card{grid-template-columns:1fr}} </style> <p>Amazon deprecated the MOBI format in August 2022. If you are publishing a Kindle eBook in 2026, here is everything you need to know about which format to upload.</p>