Criar Jingles

Criar Jingles is the business-facing product built on the same engine as CriarMusicas. Where CriarMusicas turns a personal story into a song for someone you love, Criar Jingles turns a brand briefing into a commercial jingle — no studio, no production company, no ECAD.

Crie jingles comerciais livre de copyright.

How it works

Describe your brand: the client fills in the name, the key message and the goal of the jingle. It takes less than two minutes.
The AI writes the lyrics: the pipeline produces commercial copy oriented to the business, not a love letter — this is where the prompts diverge from CriarMusicas.
The jingle is ready: delivered as an MP3, ready for radio, social media or WhatsApp, with no royalties and no licensing paperwork.

Architecture

Criar Jingles is not a separate codebase. It lives in the same Turborepo monorepo as CriarMusicas and reuses the whole backend:

Shared — the Express + TypeScript backend, the Drizzle/PostgreSQL schema, the AI generation pipeline, the FFmpeg audio post-processing and the payment integrations (Stripe and Pagar.me).
Separate — its own Next.js frontend app, its own prompts, its own pricing plans, and a segregated credit wallet: credits bought for jingles are a distinct product type and cannot be spent on personal songs.
Admin — both products are managed from the same admin panel, with dedicated jingle views.

Running two products off one backend was the point of the split: a single generation engine, two audiences, two commercial models.

What I did

Specified the product and the way it diverges from CriarMusicas — brand-oriented lyrics, commercial framing, a different buyer;
Built the separate frontend app in Next.js with next-intl and zustand;
Designed the segregated credit wallet so the two products share infrastructure without sharing balances;
Wrote the jingle-specific prompt chain on top of the shared generation pipeline;
Extended the admin panel and the transactional e-mail templates to cover both brands;
Set up the deployment as another PM2 process alongside the existing ones.

Check it out at https://criarjingles.com.br