Check if an image is ready for the platform before you upload it.
PixelProof moves beyond generic resize tools: pick a destination, run measurable file checks locally, then continue to the right editor with the same file when something needs fixing.
Instagram Story upload check
Check the vertical canvas and safe-zone risk before sending a Story creative to Instagram or Meta Ads Manager.
Local read only. The checker uses browser APIs and does not upload the image.
Choose an image to see upload readiness.
PixelProof can verify measurable file properties before upload: dimensions, ratio, size, format, and basic white-edge signals. It cannot guarantee platform approval because policy checks, account eligibility, moderation, product accuracy, and ad review are controlled by the destination platform.
Instagram documents the Story ad CTA sticker safe-zone guidance; the checker treats size and format as practical preflight checks.
See the browser-only data boundary, storage model, and no-upload verification steps.
Review what is local, what still needs environment validation, and where formal attestations are not claimed.
Follow the practical Network panel test for local image work.