Countdown Preview
Drag scene elements, preview a countdown and save a static cover.
Countdown workbench
Requires a modern browser with canvas support and a secure connection.
Loading the visual canvas…
Covers are static PNG images. Returning from a background tab recalculates the deadline. Manually changing the device clock may affect the remaining time.
Processed content stays in this page’s memory and cannot be recovered after clearing or closing.
About this tool
Set duration, Chinese and English titles, fonts and backgrounds. Drag scene elements and fine-tune their positions numerically. Landscape, portrait and square canvases support zoom, pause/resume, fullscreen and static PNG covers. Titles, images and covers stay in browser memory.
How to use
- Set duration and display format, then adjust Text and Background.
- Drag the title or timer and start. Pause, resume or preview fullscreen.
- Generate and download a static PNG cover of the current scene, then clear and reset.
Frequently asked questions
Does a background tab lose time?
Remaining time is derived from an absolute deadline and refreshed on returning, without subtracting individual timer ticks. Pause retains milliseconds; resume sets a new deadline. Manual device-clock changes can affect timing. Reloading or leaving clears page content.
Can I export countdown video?
This version exports static PNG covers captured at the remaining time when Generate is clicked. They do not update with the timer. Landscape is 1920×1080, portrait 1080×1920 and square 1080×1080. Selection outlines, controls and progress bars are excluded.
Which backgrounds and fonts are supported?
Use solid color, a two-color linear gradient or a local static JPG, PNG or WebP. Defaults allow 10MB and 20 megapixels; administrators can lower limits. Animated images are rejected, EXIF orientation is applied, and decoded images are reduced to a longest edge of 1920 pixels. Local fonts may vary across systems; preview and export share the same rendering in one browser.
How do I position text precisely?
Drag the title or timer, use arrow keys for one output pixel or Shift for ten, and Esc to undo the active drag. Text settings offer center X/Y percentages and font size. Positions respect text bounds and oversized text fits the canvas.
Are contents uploaded, and how are uses counted?
Titles, backgrounds, duration, settings and covers are not uploaded. Only client-reported scene preparation or cover generation status, duration, counts and download events are reported. Start or Restart prepares one scene. Pausing, resuming and ticks add no runs.
Discussion & comments
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