Check End Screen Elements against Subtitles, Bounds and Each Other

How to Use This Tool

Model element rectangles on a normalized video frame and export placement notes. Plan YouTube end screen rectangles, test frame bounds, subtitle overlap and element collisions, compare coordinates, and export a layout review.

The work this page finishes

A valid end screen can still cover burned-in subtitles or overlap another element; analytics calculators cannot answer the spatial placement question. For End Screen Layout, a visible row-by-row result preserves provenance, making a single correction possible without rerunning unrelated records or uploading the batch.

Deterministic workflow

Represent each element as a percentage rectangle, test it against the normalized frame, a user-set subtitle boundary and every preceding rectangle, and retain all conflicts. For End Screen Layout, input guards stop after 5,000 records or 2 MB, and the report separates fatal input problems from recoverable row warnings.

Why a dedicated interface helps

Transfer reviewed positions into YouTube Studio and inspect the actual player on several devices; the exported coordinates are planning notes, not an upload file. For End Screen Layout, deterministic ordering, one-click copying and a downloadable artifact make repeated operational review easier than manually reconstructing a response from prose.

Assumptions

• Coordinates are percentages of the visible video frame.
• The subtitle zone is modeled as a horizontal band to the bottom edge.
• Current platform rules must be confirmed in YouTube Help.

For End Screen Layout, do not discard the source after export: compare the destination result with it, and remember that local execution cannot secure the surrounding device or browser add-ons.

Limitations and review boundary

It does not upload to YouTube, fetch a video, reproduce device chrome, guarantee current Studio snapping or validate content eligibility. For End Screen Layout, user values are never run as script, rendered as markup or fetched as network destinations; the page writes them only into text nodes.

Verification and provenance

On 2026-08-26, the rule and examples were cross-checked with YouTube Help — Add end screens to videos, including a known result, a rejected input and a conflict or duplicate case. The example checks three rectangles over a 20-second end window and reports any pair, frame or subtitle-zone intersection.