YouTube Community Post Image Size: Square, Feed and Thumbnail Reuse Checks
YouTube Community posts can use images, but there is not one universal official pixel size for every post surface. Use square or feed-friendly ratios, keep text readable, and check the exported file before posting.
Last checked: August 9, 2026. Based on YouTube Help Community post guidance.
Safe ratio
1:1 square
Reusable ratio
16:9
Mobile-first
4:5 portrait
Main check
Readability
AI answer card
Quick answer
- Best size
- Use a clean square image for the safest Community post visual; 4:5 portrait and 16:9 landscape can work when the creative is designed for that feed placement
- Best ratio
- Start with 1:1 for general posts, 4:5 for mobile-first visuals, and 16:9 only when reusing a thumbnail-style announcement
- Use when
- Use this page when the image is for a YouTube Community post rather than a video thumbnail, Shorts cover, podcast cover, watermark, or channel banner.
- Avoid
- Avoid reposting a cluttered video thumbnail, full vertical Shorts frame, or tiny-text screenshot without editing it for the Community feed.
- Check with
- Image Size Checker
- Last checked
- August 9, 2026
- Source boundary
- YouTube Community surfaces can vary, and YouTube does not publish one universal pixel size for every Community post image. Use official Community post guidance plus a local file check before publishing.
What size should a YouTube Community post image be?
Use a clean square image when you want the safest general-purpose Community post visual. YouTube Community surfaces can vary, so the practical goal is not one magic pixel size; it is a clear ratio, readable text, and a source file that is not tiny or over-compressed.
If you are reusing a video thumbnail, remember that a 16:9 thumbnail is designed for video placements. It can work in a Community post, but short text, strong contrast, and a centered subject matter more than exact canvas size.
Canonical YouTube Community post image checker result action map
Use this map after checking a Community post image. It turns the result into a focused next route: publish checklist, thumbnail simplification, Shorts adaptation, mobile text repair, or social reuse routing.
Community image is feed-ready
Keep the selected feed ratio and use the pre-post checklist before publishing.
Review checklistThumbnail reuse is too busy
Simplify the 16:9 visual, reduce image text, and compare it with the thumbnail guide.
Compare thumbnailShorts frame was reused without adaptation
Create a square or 4:5 Community post export instead of dropping in the full vertical frame.
Compare Shorts frameMobile text is unreadable
Move long context into the post copy and keep image text short enough for mobile feeds.
Fix text readabilityCross-platform reuse needs routing
Route the final export through the social checker before using it beyond YouTube Community posts.
Route social reuseCommunity post publishing priority matrix
Use this priority order before publishing a YouTube Community post image. The goal is to choose the right feed ratio, simplify reused thumbnails or Shorts frames, keep text readable, and route cross-platform assets before the final post goes live.
| Priority | Job | Publishing risk | First fix | Next check |
|---|---|---|---|---|
| P0 | Confirm the image is a Community post visual | A thumbnail, Shorts cover, or broad social image can be reused without matching the Community feed context. | Route the asset by publishing surface before choosing square, portrait, or landscape. | Open YouTube hub |
| P0 | Choose the feed-first ratio | One universal pixel size does not cover every Community post surface. | Use 1:1 square for safest general posts, 4:5 for mobile-first visuals, and 16:9 only for thumbnail-style announcements. | Check exported file first |
| P1 | Simplify thumbnail reuse | A strong 16:9 video thumbnail can look crowded when it appears beside Community post text. | Enlarge the subject, cut image text, and rebuild the visual if the post is not directly promoting one video. | Compare thumbnail |
| P1 | Adapt Shorts frames before reuse | A full 9:16 Shorts frame can dominate or crop awkwardly in a regular Community update. | Create a square or 4:5 post-specific export instead of dropping in the full vertical frame. | Compare Shorts frame |
| P1 | Move long context out of the image | Tiny text that looks fine in the editor can disappear in a mobile feed. | Keep the image text to a short label or hook and put the explanation in the Community post copy. | Check text readability |
| P2 | Route cross-platform reuse | A Community post image may also be reused on Instagram, Facebook, LinkedIn, or marketplace feeds with different crops. | Use the social checker when the exported image is not YouTube-only. | Route social image |
Community post image failure diagnosis card
Use this card when the image is technically usable but still performs poorly as a Community post because it was borrowed from a thumbnail, Shorts frame, screenshot, or broad social asset workflow.
| Symptom | Likely cause | Fix before posting | Next route |
|---|---|---|---|
| A video thumbnail looks too busy in the Community feed | The 16:9 thumbnail was designed for a video card, not a feed post with surrounding text and quick mobile scanning. | Simplify the visual, enlarge the subject, shorten any image text, then compare it with the thumbnail guide. | Compare thumbnail |
| A vertical Shorts frame is reused as a Community post | A 9:16 Shorts cover may crop awkwardly or dominate the feed in a way that does not match a normal post update. | Create a square or 4:5 post-specific export instead of reusing the full vertical frame. | Compare Shorts frame |
| The image text is readable in the editor but not in the feed | Community post images are often consumed at small mobile sizes, so long text and thin fonts lose clarity. | Move long context into the post copy and keep image text to a short label or hook. | Fix text readability |
| The image dimensions are unknown before posting | Screenshots, downloaded previews, and CMS exports may not match the source file dimensions. | Check the final JPG, PNG, WebP, GIF, or AVIF file locally before publishing. | Check dimensions first |
Community post workflow bridge
Community post image searches overlap with thumbnails, Shorts covers, social posts, and unknown exported files. Use this bridge to keep each intent on the right ImageSizeKit route.
| Starting point | Use when | Route |
|---|---|---|
| Unknown YouTube image | Use the YouTube Image Sizes hub when the asset could be a thumbnail, Shorts frame, profile picture, banner, podcast cover, watermark, or Community post. | Open YouTube hub |
| Existing exported file | Use the Image Size Checker when you already have a file and need width, height, ratio, format, and file size before choosing a guide. | Check file |
| Social-style post visual | Use the Social Media Image Checker when a Community post image may also be reused on Instagram, Facebook, LinkedIn, or a marketplace. | Route social image |
| Thumbnail-style announcement | Use the YouTube Thumbnail Size guide when the Community post is promoting a specific video and keeps a 16:9 thumbnail-style visual. | Open thumbnail guide |
Community post publish acceptance record
Use this record before the Community post goes live. It turns a ratio suggestion into a documented publishing decision: final file identity, feed shape, thumbnail or Shorts reuse, mobile text readability, and cross-platform boundaries all need their own evidence.
| Acceptance package | Evidence to keep | Reject when | Next route |
|---|---|---|---|
| Final Community post file identity | The uploaded JPG, PNG, WebP, GIF, or AVIF has been checked for real width, height, ratio, format, and file size. | The file is a screenshot, downloaded preview, thumbnail draft, Shorts frame, or compressed chat export. | Check final file |
| Feed ratio decision | The post uses a chosen feed-first shape: 1:1 for general updates, 4:5 for mobile-first visuals, or 16:9 for thumbnail-style announcements. | The ratio was inherited from another asset without deciding whether it fits the Community feed. | Review ratio table |
| Thumbnail reuse acceptance | A reused 16:9 thumbnail has shorter text, a simpler subject, and enough contrast for a feed post beside written copy. | The image still behaves like a busy video card rather than a scannable Community post visual. | Compare thumbnail |
| Shorts frame reuse acceptance | A vertical Shorts frame has been rebuilt as a square or 4:5 post export when the full 9:16 frame is not the final surface. | The full vertical cover is dropped into a Community post without checking feed crop and subject placement. | Compare Shorts frame |
| Mobile text readability | Image text is short, high contrast, and still readable when the visual is previewed at a small mobile feed size. | The image carries long explanatory copy that belongs in the Community post text. | Check text readability |
| Cross-platform reuse boundary | Any Instagram, Facebook, LinkedIn, or marketplace reuse has its own route instead of treating the Community post image as universal. | The same export is scheduled across platforms with no surface-specific crop or checker result. | Route social reuse |
Community post image ratio table
| Ratio | Best use | Check before posting |
|---|---|---|
| 1:1 square | Safe feed-first option | Use for announcements, polls with context, and simple channel updates. |
| 4:5 portrait | Tall feed image | Useful when a mobile-first visual needs more height without becoming a Shorts cover. |
| 16:9 landscape | Video-adjacent visual | Useful when reusing a thumbnail-style announcement image. |
| Avoid tiny text | Readability rule | Community posts are scanned quickly, especially on mobile feeds. |
Pre-post checklist
- Check the exported image width and height.
- Preview the image at a small mobile feed size.
- Use short text or no text in the image.
- Keep the subject centered enough for feed crops.
- Avoid reposting a cluttered video thumbnail without editing.
- Put long context in the Community post text.
YouTube Community post image FAQ
What size should a YouTube Community post image be?
YouTube does not publish one fixed pixel size for all Community post images. Use a clear square or feed-friendly image, check the file dimensions before posting, and keep text readable on mobile.
Is 1:1 a good YouTube Community post image ratio?
Yes. A 1:1 square image is a practical safe choice for many Community posts because it is easy to preview, crop, and reuse across feeds.
Can I reuse a YouTube thumbnail as a Community post image?
You can reuse a thumbnail-style 16:9 image, but check the text size and composition. A feed post may display differently from a video thumbnail placement.
Should Community post images include text?
Use short text only when it stays readable at mobile feed size. Put long explanations in the post text instead of the image.
Related YouTube image pages
Image Size Checker
Check width, height, ratio, file size, and image format locally.
YouTube Thumbnail Size
Compare standard 16:9 video thumbnail requirements.
YouTube Shorts Thumbnail Size
Compare vertical Shorts cover frames before reusing them in a post.
YouTube Thumbnail Text
Keep image text readable when the visual appears small.
Social Media Image Checker
Route social-style visuals before reusing them across platforms.
YouTube Image Sizes
Open the full YouTube image asset hub.