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Q3/Q4 2026 Capacity: Now accepting select web engineering & AI code rescue projects.
JoinAffix - Web Engineering
Emergency
JoinAffix Developer Utilities

Free diagnostic tools for ambitious engineering teams.

We built these interactive utilities to help founders, CTOs, and developers rapidly audit security postures, estimate development scopes, and fix brittle code prototypes.

100%
Free & Open Access
0 MB
Data Retention
Instant
Ready-to-Deploy
Modern
Stack Support
AI Code RescueLive

AI Code Smells & Security Auditor

Harden AI prototypes in seconds

Paste code from Cursor, Bolt.new, Lovable, or Claude Code. Detect client secret leaks, unauthenticated Server Actions, infinite loops, and SQL injection flaws with instant 1-click refactored fixes.

Client secret leak detection
Circular useEffect loop catcher
OWASP injection analysis
Launch Utility
Architecture & ScopingLive

SaaS Project Scope & Cost Estimator

Model timelines, budgets & tech specs

Configure your web application archetype and feature modules. Instantly estimate engineering weeks, investment ranges, monthly cloud bills, and a custom Next.js 16 + PostgreSQL architecture spec.

Engineering hours & week estimates
Monthly cloud infrastructure modeling
Tailored modern tech stack spec
Launch Utility
Security & ComplianceLive

Security Headers & SSL Inspector

Audit OWASP headers & SSL compliance

Scan any public domain for essential HTTP security headers (CSP, HSTS, X-Frame-Options, CORS) and get instant copy-paste configuration snippets for Next.js, Cloudflare, and Nginx.

CSP directive validation
SSL protocol & HSTS grading
Next.js & Nginx config generator
Launch Utility
Speed & Revenue ROILive

Headless Migration ROI Calculator

Quantify speed gains in annual revenue

Audit your live Core Web Vitals (Mobile LCP) and calculate the exact annual revenue your business is losing to slow load times using verified Deloitte and Google e-commerce speed benchmarks.

Real-time PageSpeed Insights API
Revenue recovery financial model
Conversion rate lift projection
Launch Utility
Engineering Philosophy

Why JoinAffix builds free developer utilities.

Too many development tools are gated behind paywalls or sell user scan data. We believe high-performance engineering practices—from OWASP headers to clean Next.js server boundaries—should be transparent and immediately verifiable.

Zero Data Logging

Code snippets and URLs are evaluated ephemerally and never persisted to databases or used in AI training.

Senior Production Fixes

Every suggestion comes with tested, drop-in TypeScript and Next.js App Router code snippets.

Continuous Updates

Updated weekly for Next.js 16, React 19 Server Actions, and modern browser security standards.

Senior Technical Partnership

Have a web problem worth solving?

Choose your path below. Whether you are building from scratch or need an urgent engineering rescue, let's talk with zero sales fluff.

PATH A: STRATEGIC BUILD

Starting a New Project or Rebuild

For founders and product teams needing custom Next.js engineering, legacy platform migrations, or performance overhauls.

Architecture blueprint & fixed milestone estimate
Zero vendor lock-in & full repo ownership
100% type-safe TypeScript & Next.js 16 App Router
Start a project discussion
PATH B: CODE RESCUE & INCIDENT

AI Code Rescue or Urgent Outage

For development teams with broken AI prototypes, critical security leaks, crashed production servers, or failed deployment pipelines.

Rapid emergency bridge joined in <2 hours
Senior root-cause forensic debugging
Security leak extraction & Postgres hardening
Request emergency assistance
Direct senior engineering inbox:hello@joinaffix.com
Guaranteed response within 24 hours