HTMLmend

About

HTMLmend turns any already-made HTML slide into something you can fix without touching code. Open the page, click the toolbar icon, and a small editing panel appears. Click an element to select it, then change its text, color, size, font, position, and more — then save the whole thing as one self-contained HTML file.

It's a mending tool, not a from-scratch builder: perfect for tidying up AI-generated slides (decks exported as a single HTML file) before you present or share them.

■ WHAT YOU CAN DO
• Click to select any element — the highlight stays aligned even on transform:scale() slides
• Edit text directly (double-click) with rich formatting: bold / italic / underline / strikethrough, align, lists, links
• Change text color with a built-in picker — preset palette + free selection (saturation/brightness, hue, HEX, eyedropper)
• Adjust font size (slider or number), font family, and line height
• Move and resize elements (Move mode + drag, with scale-aware math)
• Recolor the whole deck at once by editing the theme (CSS variables)
• Replace / insert / delete images, edit alt text, and embed video (YouTube / Vimeo / MP4)
• Unified Undo / Redo across every action (Ctrl+Z / Ctrl+Shift+Z)
• Navigate slides (Prev / Next)
• Dock the panel left or right, or float it; collapse it when floating
• Built-in help screen explaining every feature
• Export a single HTML file with CSS and images embedded (editing UI removed), or copy just your CSS changes
• Reset to the original file to discard all edits

■ PRIVACY
• 100% local. Your pages and edits never leave your browser — no servers, no analytics, no tracking.
• No third-party code is bundled and no remote code is loaded.
• Minimal permissions: it only acts on the current tab when you click the icon.

■ HOW TO USE
1. Open the HTML slide you want to edit (a local file:// page works too).
2. Click the HTMLmend toolbar icon to turn on edit mode.
3. Click an element to edit it; double-click text to retype it; use Move mode to drag.
4. Click "Save as single HTML" to export.

Open source (MIT). Clean-room implementation.