Duration Badge Collision Safe-Zones
See exactly where the bottom-right timestamp pill renders on desktop and mobile feeds so focal points stay visible.
YOUTUBE CREATOR TOOLS · RUNS LOCALLY
YouTube thumbnail previewer
Test your YouTube video thumbnails against real desktop, mobile, and sidebar layouts. Catch timecode badge collisions and title truncation before publishing.
FREE · NO ACCOUNT · ZERO SERVER UPLOADS · LIVE PREVIEW
marketing.youtubeThumbnailPreviewerPage.tool.inputs.videoTitle54/60 chars
1280 x 720 (16:9)
12:45
SAFE ZONE
C
How to Build a 100k Audience in 30 Days (Step by Step)
Creator Studio
184K views • 3 days ago
WHY THIS ONE
Catch click-through bottlenecks before your video goes live
YouTube thumbnails lose up to 18% CTR when critical visual hooks or faces are obscured by duration badges or mobile edge cutoffs.
Multi-Device Feed Context
Switch between Desktop 3-column feed, Mobile portrait stack, and Sidebar Up-Next cards.
Dark & Light Mode Testing
Verify thumbnail border contrast and title readability in both YouTube dark theme and light theme.
PAST THE PAGE
Generate high-CTR thumbnail assets with AI
PrismPoster Image Studio creates cinematic, high-contrast imagery designed specifically for high click-through rates.
- Generate photorealistic subjects and 3D expressive facial hooks.
- Upscale to pristine 4K resolution with fine edge retention.
- Free account starts with 50 credits to craft thumbnail backgrounds.
This previewer tool is free with zero upload.
Explore Image StudioQUESTIONS
YouTube thumbnails, answered
marketing.youtubeThumbnailPreviewerPage.faq.items.isItFree.question
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marketing.youtubeThumbnailPreviewerPage.faq.items.idealResolution.question
marketing.youtubeThumbnailPreviewerPage.faq.items.idealResolution.answer
marketing.youtubeThumbnailPreviewerPage.faq.items.safeZones.question
marketing.youtubeThumbnailPreviewerPage.faq.items.safeZones.answer
marketing.youtubeThumbnailPreviewerPage.faq.items.titleTruncation.question
marketing.youtubeThumbnailPreviewerPage.faq.items.titleTruncation.answer
marketing.youtubeThumbnailPreviewerPage.faq.items.darkLightMode.question
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The studio behind this tool
One free account. Six studios.
Every free tool on this page is cut from PrismPoster itself — six studios that share one credit wallet, one library, and one timeline editor. Where the free tool stops, the studios keep going.
Omni Studio
Connect images, video, and music on one node canvas and build a piece across mediums without leaving the flow.
Image Studio
Generate pictures from prompts or references, then refine them in place with Magic Edit — remove objects, retouch, upscale.
Video Studio
Turn a prompt or a still image into a moving clip, in vertical or widescreen for wherever it ships.
Character Studio
Design a character once and reuse them consistently — the same face in new images, scenes, and clips.
Storyboard
Plan a video scene by scene, then send each shot to the studios to render.
Music Studio
Write full tracks with vocals or instrumentals for your videos and streams.
Start free
200 credits to start — one-time, no card
- New accounts start with a one-time grant of 200 credits, not a trial that expires.
- Your first video renders free at 720p, and one 10-second extension of it is free too — both on top of the credits.
- Everything you make lands in your library, ready for the timeline editor.
First-month offer
Unlock 20% off your first month
First-time subscribers unlock 20% off the first month of any monthly plan — a one-time personal window of 72 hours that opens when you first engage and never resets.
While your window is open, the discount is applied automatically at checkout — there is no code to enter.
Ready to build high-CTR videos?From concept to export.
Create thumbnail backdrops, generate cinematic scenes, and export directly to YouTube.