Free 1-Minute Black Screen Video for Social Slots, Edit Buffers, and Breath Cycles
Sixty seconds is the shortest file here that behaves like a segment instead of a transition. It fills one short-form upload slot, carries four rounds of box breathing, and runs long enough to prove a player survives past its opening keyframe. Pure black, no audio track, 100% free.
どんな用途に使われている？
One Short-Form Upload Slot
Sixty seconds has long been the common ceiling for a single short-form post, so a 1-minute black clip fills one slot without trimming. Creators use it as a silent bed under overlaid text, as a countdown card, or as a deliberately blank post. Individual apps keep moving their limits, so check the current maximum in whichever app you are posting to rather than assuming 60 seconds is still the cap — but a file cut to exactly one minute remains the safest common denominator across feeds, and it uploads in seconds because the 720p MP4 is under 12 KB.
Take Separators on a Timeline
Editors drop a one-minute black block between takes so an assembly cut has visible seams. A rendered clip is not the same as an empty gap: it carries a thumbnail, a fixed duration, and a filename, so the sequence length stays honest when the project is handed to someone else and nothing collapses when tracks get rippled. At 720p the MP4 is 11,697 bytes, small enough to keep a copy inside the project folder rather than re-linking to a shared drive every time the edit moves machines.
One Complete Breath Cycle
A minute maps cleanly onto common breathing patterns: four rounds of 4-4-4-4 box breathing, or six rounds of a four-in, six-out cycle. Because the session ends when the file ends, nobody has to watch a countdown. This is the length to pick for a reset between two tasks. If you want the pattern to settle rather than merely start, step up to the 5-minute file instead — one minute is a punctuation mark, not a practice.
Screen Recording Head and Tail
Tutorial and demo recordings usually want a beat of black before the first frame and after the last, so an export never opens mid-sentence or freezes on a stray cursor. One minute is far more than most edits keep, and that is the point: you trim down from a known quantity instead of padding up from nothing. Keeping the same clip at both ends also means the head and tail match exactly, which matters when a series of recordings gets stitched into one upload.
The First-Minute Playback Check
Player problems tend to appear either immediately or just after the first keyframe interval, which makes a minute the cheapest useful smoke test. Load the file, go fullscreen, confirm the display does not dim or sleep on a pure black frame, and confirm playback reaches the end without stalling. If all of that passes, move to the 10-minute or 30-minute file for sustained behavior — one minute will never surface thermal throttling or slow memory drift.
よくある質問
Why is the 480p 1-minute file larger than the 720p one?
Because the two are not encoded the same way. From the 10-second tier upward the 480p files run at 25 fps while every other resolution runs at 5 fps, so 480p stores five times as many frames. At one minute that puts the 480p MP4 at 31,358 bytes against 11,697 bytes for 720p — 2.7 times bigger for a lower resolution. If download size is what you care about, take 720p.
At 1080p, should I take the MP4 or the WebM?
At this length WebM is the smaller file: 16,808 bytes against 18,558 for MP4, roughly 9% less. That ordering does not survive much longer. By the 5-minute mark the 1080p WebM has overtaken the MP4 and stays larger at every duration above it. For a one-minute clip, choose WebM if your player accepts it and MP4 if you want the broadest compatibility.
How many times does a 1-minute file loop in an hour?
Sixty. That mostly matters for players that redraw their chrome or flash a frame at each loop point, because sixty restarts an hour is enough for the flicker to become noticeable. For unattended overnight playback, a longer file with fewer loop seams is the calmer choice.
How big is the 1-minute file at 4K and 8K?
The 4K MP4 is 1,503,684 bytes, about 1.4 MB, and the 8K MP4 is 5,881,409 bytes, about 5.6 MB. That works out to about 98,000 bytes for every second of 8K black, against roughly 195 bytes per second at 720p. On screen the files are indistinguishable, so pick the high resolutions only when something downstream reads the resolution from the file metadata.
Does the file contain any audio?
No — there is no audio track at all, not even a silent one. Players handle it fine, and nothing inside the file can interrupt a podcast, a meditation app, or a call running underneath it.
Can I hand this to a client as part of a paid deliverable?
Yes. The exact permissions are written out on the Terms page rather than summarized here, so read them once and the answer covers every file on the site.
Does it play without an internet connection?
Yes. It is an ordinary video file; once it is on the device nothing about playback touches the network, and there are no ad breaks inside the video itself.