PHP app for creating LINE, Viber, and WhatsApp sticker packs with GPT-4o-mini AI validation, FFmpeg video conversion, and OTP login.
PHP app for creating LINE, Viber, and WhatsApp sticker packs end-to-end. Supports static and animated stickers — animated formats run through FFmpeg server-side for APNG/WEBM conversion.
GPT-4o-mini validates sticker content against each platform's content policy before submission. OTP login for access control. Deployed at seanblake.info/line-studio.