The AI ad resizer that treats your design as sacred · built by a.Lab
Every performance-marketing team knows the ritual: the campaign creative is approved, and then someone spends the rest of the day producing it in five aspect ratios for 6 different platforms. Square for the feed. 4:5 for mobile. 9:16 for Stories, Reels, TikTok and Shorts — each with its own overlay zones. Landscape for link previews and PMax. It is layout work, not design work, and it consumes hours that should go into the next idea.
AutoAdfit exists to delete that ritual. You upload one master creative; the AI detects the subject, understands the composition, and produces all 18 platform-perfect formats — smart-cropped, safe-zone protected, and ready to traffic in seconds.
Most AI image tools want to be creative. Ours is deliberately not. An ad creative is an approved artifact — brand, legal and performance teams signed off on a specific image, and every pixel of it is intentional.
So AutoAdfit operates under one hard rule: faithful reproduction of the original design comes first. The AI adapts your layout to each aspect ratio — it repositions your elements, extends backgrounds from the image's own material, and applies each platform's safe zones. What it never does: drop an element that was in your original, invent an element that wasn't, change your colors, or rewrite your text. If a result would violate that rule, we treat it as a defect — not a feature.
The engine analyzes each upload with AI vision — locating the subject, faces, products, text blocks and logo — then solves a per-ratio layout for every target format across 6 platforms (Google PMax, Meta Ads, YouTube, TikTok, Naver, Kakao). Platform-specific safe zones are applied automatically, so headlines never hide behind a TikTok icon rail or an Instagram reply box. Results are exported at each platform's exact recommended pixel dimensions to avoid double compression.
You can read the exact specs we target in our ad format guides — the same numbers the product uses internally.
AutoAdfit is designed, engineered and operated by a.Lab, an independent product studio focused on practical AI tools for marketing production. We ship in small, verified increments and publish what the product actually does — the format tables across this site are generated from the same configuration the app runs on.
Questions, feedback or partnership inquiries — see the contact page, or start with the FAQ.