Free Developer Utilities

Tools for Planning, Shipping, and Reviewing Better Software

A growing collection of practical developer utilities and templates for full-stack engineers, DevOps workflows, and secure delivery.

CareerFree live tool

AI Resume Builder

Create a polished resume with AI-assisted wording, professional structure, and a browser-based editing workflow.

Output: A ready-to-review resume draft

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Backend8 min guide

API Endpoint Checklist

Review request validation, auth, response design, pagination, error handling, and observability before an endpoint reaches production.

Output: A scored endpoint readiness report

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Security7 min guide

Security Header Planner

Generate a practical starter set of HTTP security headers for static sites, Next.js apps, APIs, dashboards, and documentation hubs.

Output: Copyable header recommendations

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DevOps9 min guide

Deployment Readiness Audit

Check build output, environment variables, domain settings, redirects, monitoring, rollback planning, and release communication.

Output: A launch risk score and checklist

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Utilities6 min guide

Regex Test Notes

Test JavaScript regular expressions against sample input and create notes for examples, edge cases, replacement behavior, and risk.

Output: Matches plus documentation notes

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Database8 min guide

Database Index Review

Turn table, filter, join, sort, and workload notes into a practical index review brief before changing production databases.

Output: Index recommendation brief

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Operations7 min guide

Incident Postmortem Builder

Draft a calm, blameless postmortem with impact, timeline, root cause, recovery actions, and follow-up owners.

Output: Copyable markdown postmortem

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Built for Real Developer Workflows

Each tool combines a working browser-based utility with original guidance, review notes, and copyable output. The goal is to help developers make better decisions while giving search engines and manual reviewers clear evidence that the site offers useful standalone content rather than a thin portfolio page.