PostProof — Creator Safe Zone Checker

Features

What it does

preview a clip inside a generic short-form video overlay

run FrameCheck to see whether text, faces, or details may be covered

compare coverage results across the bundled layouts

get a ranked Publish Readiness Plan with the highest-priority fixes first

review safe-zone, audio, readable-text, frame-fill, cover, and Stop Score checks together

get a Stop Score, muted-readability score, loop score, and tap-to-open score breakdowns

place a short caption that snaps inside the center-safe area

browse an offline specs cheat sheet for aspect, duration, resolution, bitrate, and frame rate

use bundled caption prompts and tags for drafting posting copy

choose a cover frame scored on exposure, sharpness, contrast, and subject presence

trim the start and end before export

export a 720p or 1080p posting copy

Import a short-form video, pick a generic layout, and PostProof shows pixel-accurate safe zones, stylized feed controls, caption risk with coverage percentages, face risk, cover options, trim controls, export settings, and a publish-readiness plan in one focused workflow.

What you can do with PostProof:

Layouts use generic, layout-descriptive names such as Tall-Caption Vertical, Right-Rail Vertical, Title-Bar Vertical, and Square Timeline. PostProof uses no social-platform brand names.

PostProof is not a social network and does not post for you. It is the quick check before you upload: make sure the caption is readable, the face stays clear, the cover is strong, and the clip is ready to share.

Privacy

Private by design

PostProof does not require an account and does not include third-party advertising or analytics SDKs. Content you create stays in the app on your device unless you explicitly export or share it. See the privacy policy.