Make the main task obvious
Give every page one clear primary purpose. A tool page should explain its job, required input, what the result means and how to use or download the result. The main button should use a specific action label such as “Compress image” or “Generate questions” rather than a vague label that does not describe what happens.
Keep the main navigation short and consistent. Use categories that match visitors’ tasks, and place frequently used tools where people can find them. Search should handle partial matches and show a helpful empty state instead of leaving a blank grid.
Design for phones and small screens
Use layouts that can shrink without forcing horizontal scrolling. On a phone, a sidebar may become a drawer, cards may move to one column and buttons should retain enough space for touch. Test longer titles, error messages and forms at narrow widths; a layout that works with five-character titles can still break with real content.
Make the search and primary action easy to reach. Ensure the mobile menu can be opened and closed with a keyboard, exposes its expanded state and does not trap focus. Preserve the user’s place on the page after filtering or navigating where practical.
Treat accessibility as part of functionality
Use semantic headings in order, visible keyboard focus, descriptive labels for fields and meaningful names for icon-only buttons. Do not communicate success or failure through colour alone; pair colour with text or an icon and a readable label. Maintain contrast for small text and avoid font sizes that force unnecessary zoom.
Respect reduced-motion preferences and avoid flashing effects. For asynchronous tools, expose loading and error states to assistive technology without announcing every minor update. Images that convey information need useful alternative text; purely decorative images should be ignored by screen readers.
Be transparent about AI features
Tell users whether a task runs in the browser or sends material to an external provider. If a provider is not configured, show a specific explanation instead of a button that appears to work but silently fails. When a provider rejects a request, give a concise message and a safe next step without exposing API keys or server secrets.
AI responses may be wrong or incomplete. Encourage users to verify important outputs and do not make unsupported claims such as “guaranteed correct” or “unlimited free” if quotas or provider costs apply.
Keep pages useful and performant
Use appropriately sized images, avoid loading large assets before they are needed and remove code that is not used. Set descriptive page titles, unique meta descriptions, canonical links where appropriate and an accurate XML sitemap. A sitemap helps discovery but does not guarantee indexing.
For a directory site, avoid making every page a near-identical card and a couple of sentences. Add original instructions, worked examples, limitations and common errors. The content should help visitors complete a task even if they do not use the tool immediately.
Review privacy and ads before publishing
Explain what data is stored locally, which login provider processes account details, which AI providers receive submitted prompts or files, and how users can contact the site owner. Do not claim that a tool is local if it sends content to a server. Verify that a published contact address is monitored and that policy links work.
If advertising is added, keep ad placements distinguishable from tool controls and useful content. Do not place ads on error screens, empty search results or pages created only to show ads. Site approval depends on the actual site and publisher policies, not a checklist alone.
A monthly quality review
Test the key user journey: search for a tool, open it, enter typical input, recover from invalid input, download a result and return to the directory. Repeat on mobile and in a keyboard-only session. Inspect console errors and broken images after each deployment.
Ask a new visitor to find and use one tool without help. Watch where they hesitate. Their confusion often reveals unclear labels or missing instructions more quickly than adding another visual effect.