jeremiemondino.dev

// Case study

Clearmyprint.

Your digital footprint, mapped in minutes — one OAuth click, full inbox scan, every account revealed.

Role

Solo Developer

Year

2026

Duration

Personal project

Next.js 16TypeScriptNeon PostgresClaude AITailwind
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// 01 — Explore the product

Try Clearmyprint.

An interactive walkthrough — from OAuth to full dashboard.

clearmyprint.com
EN
FR
🔍
Clearmyprint
About

Discover where you exist online.

Scan your inbox to reveal every service, app and site where you're registered.

🔒 Email content is never read

Headers only

never email content

Real-time SSE

streaming results

Confidence levels

Confirmed / Probable / Uncertain

Deep scan

resolves ambiguous services

// See it live

The project is live.

// 02 — The story

Project story

// The context

Your inbox is the map of your digital past.

Over 10 years of signing up for services, trials, newsletters, and SaaS tools — most people have 200+ registered accounts. The majority are forgotten, some are breached, and all are invisible. You can't protect what you can't see. ClearMyPrint started from one question: what if you could surface your entire digital footprint in a single scan?

// The opportunity

The source of truth is already in your inbox.

Every service you ever signed up for sent you a welcome email. Instead of asking users to manually recall 200+ accounts, I tapped the one source they already have — their inbox. One OAuth connection to Gmail or Outlook gives access to a goldmine of metadata: sender domains, dates, volumes. The entire digital footprint derives from data users already own.

// The solution

A two-phase detection pipeline, enriched by AI.

Built a real detection system from scratch. The fast scan reads header metadata only — sender domain, date, never content — matches against a service registry DB, and streams results live via SSE. Each service is assigned a confidence level: Confirmed, Probable, or Uncertain. The deep scan optionally reads one message body per unmatched domain for AI enrichment with Claude Haiku. Built solo over 6 weeks, shipped at clearmyprint.com.

// 03 — Tech stack

Privacy-first architecture.

Frontend

  • Next.js 16

    App Router, SSE streaming, edge-ready deployment

  • TypeScript

    Strict types across the full detection pipeline

  • Tailwind CSS v4

    Dark design system, utility-first

  • Framer Motion

    Scan animations and real-time service reveal

AI & Detection

  • Claude Haiku

    Service enrichment from partial email metadata — fast and cheap

  • Gmail API

    OAuth 2.0 gmail.readonly — headers only by default

  • Microsoft Graph

    Mail.ReadBasic for Outlook / Microsoft 365

Backend & Infra

  • Neon Postgres

    Serverless DB for service registry and scan results

  • Vercel

    Edge deployment with SSE route support

// Ready to build?

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