Open experiment
Segmented file uploader
Shows chunk-level upload progress, verification, pause, and retry without a full dropzone. A file button starts simulated chunks; pause and retry preserve visible per-segment status. Exposes multipart transfer stages rather than only accepting a dropped file.
Lab tested Responsive Dark mode Interactive
- Version
- 1.0.0
- Updated
- 2026-08-02
- Dependencies
- Zero
<form class="cmp-segmented-file-uploader cmp-atlas" data-state="idle" data-variant="4" novalidate>
<div class="cmp-atlas__field-head"><span>Upload controls</span><b>Segmented transfer</b></div>
<div class="cmp-atlas__file">
<b>motion-kit.zip</b><span>18.4 MB / verified locally</span>
<div>
<i style="--i: 0"></i><i style="--i: 1"></i><i style="--i: 2"></i><i style="--i: 3"></i
><i style="--i: 4"></i><i style="--i: 5"></i><i style="--i: 6"></i><i style="--i: 7"></i>
</div>
</div>
<button
type="button"
class="cmp-atlas__primary"
data-primary
data-active-label="Transfer paused"
aria-pressed="false"
>
Start segmented upload
</button>
<div class="cmp-atlas__field-meter" aria-hidden="true"><i></i></div>
<p data-status aria-live="polite">Control ready</p>
</form>
No runtime reactions detected Open in Editor
Validated in the lab
Experiment report
- Schema and source files passed
- Responsive test passed
- Keyboard test passed
- No console errors
Component ingredients
- Dependencies
- None
- Browser support
- Current Chrome, Current Edge, Current Firefox, Current Safari
- Version
- 1.0.0
- Last tested
- 2026-08-02
Accessibility notes
- Every interactive target is a labelled native control with a visible focus treatment.
- State changes are communicated through a polite text status and never by color alone.
- The contained visual effects stop when the user requests reduced motion.
License: MIT License for open-source use, modification, and distribution.