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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Choose a loading pattern based on what is waiting and whether the work has measurable progress: use a content-shaped skeleton for a full page, a spinner for a short wait in one module, and a progress bar or step indicator when progress can be reported. Keep the page stable, avoid invented percentages or time estimates, and make the loading state understandable to people using assistive technology.
Loading screen examples at a glance
| Pattern | Best fit | What it tells the user | Main caution |
|---|---|---|---|
| Skeleton screen | A full page or substantial content area that is being assembled | Where content such as headings, cards, text, and images will appear | It should resemble the actual content structure; an empty frame can look broken during a long wait. |
| Spinner or loading icon | A short wait for one module or a small action | Work is ongoing | It does not say how much time remains. Avoid flashing it for a very quick load. |
| Progress bar | A download, upload, or other process with progress that can be measured | How much measurable work is complete | Do not show a fabricated percentage when progress is unknown. |
| Step indicator | A multi-stage process with meaningful named stages | Which stage is underway or complete | Stages should reflect actual process milestones, not imply a time estimate. |
These are design choices, not competing decorations. Nielsen Norman Group (NN/g) distinguishes skeletons for page structure, spinners for a module’s short wait, and progress bars for longer or process-related work. Its duration guidance is a recommendation, not a universal rule or a measured guarantee of user outcomes.
Skeleton screens: show the shape of the content
A skeleton screen is a wireframe-like placeholder that mimics the layout of a page while it loads. Instead of presenting a blank area, it can show the expected positions of the page title, description, cards, text blocks, and images. NN/g’s examples include LinkedIn, Headspace, and DoorDash; the examples illustrate how placeholders can communicate the page’s structure.
When a skeleton works well
- Use it when a substantial page or content region is loading and the eventual layout is reasonably predictable.
- Make placeholder shapes correspond to real content. A row of card-shaped placeholders is more informative when the final page actually contains cards.
- Reserve the space the content will occupy. If the loaded content changes the geometry dramatically, the skeleton can contribute to the same unexpected movement it is meant to soften.
When it does not
A skeleton is not a substitute for faster loading. NN/g cautions against a frame-only version that displays just a header, footer, and background without suggesting the page’s content structure; during a longer wait, that can seem broken. Do not build a detailed skeleton for a tiny module whose content appears almost immediately.
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Spinners: signal ongoing work without a promise
A spinner communicates that work is happening, but it cannot tell a user how much remains. It is therefore a reasonable choice for a brief wait in a single module, such as a panel refreshing while the rest of the page stays usable. NN/g describes spinners as best suited to waits in the two-to-ten-second range; that range is design guidance from NN/g, not a universal cutoff.
For a very quick operation, the spinner may appear and vanish so fast that it distracts rather than reassures. For a long wait, an unchanging spinner offers no account of progress. If the duration is unknown, it is still more honest than a fabricated percentage, but consider whether the user needs a clearer status or a way to continue other work.
Progress bars and step indicators: report what you can measure
A progress bar is useful when the system can report progress, for example during a download or upload. A step indicator fits work organized into real stages, such as a multi-step operation where each stage has a meaningful name. The key distinction is not visual style: it is whether the interface can truthfully describe progress.
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Determinate and indeterminate progress
Use a determinate value only when it reflects actual measured progress. If the system cannot know how much work remains, show an indeterminate progress state or a spinner rather than an arbitrary percentage. An indeterminate bar can communicate activity without suggesting that the system has calculated a completion fraction.
NN/g recommends a progress bar for waits longer than ten seconds and an explicit duration estimate for waits above that threshold. Treat this as NN/g’s recommendation, not proof that every task can be estimated. Give an estimate only when the system has a defensible basis for it; a made-up countdown creates a promise the loading process may not keep.
How to choose a loading pattern
- Identify the scope. If the whole page’s content is arriving, consider a skeleton that previews its layout. If only one module is busy, a spinner may be enough. For a multi-stage task, consider a step indicator.
- Ask whether progress is measurable. For a real upload or download, a progress bar can represent measured progress. If the amount of work is unknown, choose an indeterminate state rather than a percentage.
- Consider the wait and what remains usable. NN/g says skeletons or spinners are generally unnecessary for waits under one second; it describes spinners as suitable for two to ten seconds and recommends progress bars for waits above ten seconds. These are design recommendations, not validated universal thresholds. The page context matters too: a small module can remain useful while it updates, whereas a full-page load may need a content-shaped preview.
- Keep the layout steady. Reserve space for content that will appear and avoid moving controls beneath a user’s pointer or focus. WAI’s guidance is direct: “Make sure controls and content remain in place and do not move, unless the user initiates the movement.”
- Check motion and accessibility. Give the indicator an accessible name, connect it to the region changing, and make sure an animation does not create an avoidable distraction or motion barrier.
Accessible loading states and stable layouts
A loading cue must communicate its purpose to more than sighted users. The web.dev example uses a native <progress> element inside a label, associates the progress indicator with the changing region using aria-describedby, and marks that region aria-busy="true" while work is underway. When loading is complete, clear the busy state. Use an indeterminate progress element when progress cannot be quantified.
These semantics do not replace a visible cue: the visual interface still needs to make clear that content is loading. Nor should a loading state leave people guessing whether controls are ready. Keep content and controls stable while the region changes. WAI warns that unexpected movement can cause people to miss controls or become disoriented, and recommends a clear loading indicator when content changes.
Motion, shimmer, and WCAG 2.2
A shimmer is an animated treatment sometimes used on skeleton placeholders. Use motion with restraint and consider whether the information is understandable without it. WCAG 2.2 Success Criterion 2.2.2 requires a way to pause, stop, or hide certain automatically moving, blinking, or scrolling content when it lasts more than five seconds and appears in parallel with other content, unless an exception applies. The criterion is not a blanket ban on every short loading animation. WAI notes that a preload animation can be essential when interaction is unavailable and the lack of feedback could make the system seem frozen.
Implementation checklist
- Choose a pattern that reflects the work: page structure, ongoing activity, measurable progress, or actual process stages.
- Show placeholders that match the eventual content instead of an empty page frame.
- Do not display numeric progress or a remaining-time estimate unless the system can support it.
- Keep the space for incoming content stable so controls do not jump during loading.
- Give progress indicators an accessible name and associate them with the region being updated.
- Set the affected region to busy while it is loading and clear that state when it finishes.
- Review animated effects for distraction and applicable pause, stop, or hide needs.
- Test the loading state at the actual points where it appears: a brief wait, a longer wait, and an unknown-duration wait can call for different treatment.
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Frequently Asked Questions
Is a skeleton screen the same as a loading screen?
A skeleton is one kind of loading screen: it previews the layout of the content that is still arriving.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Should a loading screen show a percentage?
Only when the system can measure progress well enough for the percentage to mean something. Otherwise use an indeterminate indicator.
What is a shimmer loading effect?
It is an animated effect sometimes applied to skeleton placeholders; consider whether the motion is needed and whether users can pause, stop, or hide it when applicable.
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