Blog/My Toolbox: All the tools to help you daily

My Toolbox: All the tools to help you daily

Discover a collection of practical custom-developed tools to simplify your common tasks.

March 4, 2026•4 min de lecture•Danny Garcia

Boite à OutilsProductivitéUtilitairesOpen SourceUX

My Toolbox: All the tools to help you daily

Welcome to my Toolbox! As a developer, I love automating repetitive tasks and creating simple solutions to everyday problems. That's why I decided to collect on this site all the small utilities I develop over time. Whether it's to calculate your taxes, generate secure passwords, or optimize your vacation, you'll find here a selection of free, fast, and privacy-respecting tools (no data is sent to a server).

Why create your own tools? Most online tools today are riddled with ads, slow to load, or collect your personal data in an opaque way. My approach is different: to offer clean, efficient, and open-source utilities. Each tool is designed with special attention paid to user experience and design, so that its use is as pleasant as possible, whether you are on your computer or your smartphone.

A constantly evolving ecosystem. This toolbox is not static. I regularly add new features based on my own needs and the suggestions I receive. It's also a technological experimentation lab for me where I test new calculation methods, interactive chart libraries, or performance optimizations that then benefit all my client projects.

Below, you will find all my achievements classified by theme. Feel free to bookmark them and share them around if you find them useful! If you have a tool idea that doesn't exist yet or an improvement to suggest, feel free to contact me. I'm always happy to discuss new projects!

Browse available tools

Here is the full list of tools I have developed to help you in your daily life.

🏠

Daily Life

Holiday Helper

Optimize your vacation time considering holidays and weekends.

Time Between Dates Calculator

Calculate time between two dates with customizable options.

Birthday Scheduler

Manage your loved ones' birthdays and export to your calendars.

Homemade Detergent Recipe

Complete recipe to make your ecological detergent.

Apartment Search & Moving

Complete checklist and resources for your move.

Speed Time Savings Calculator

Calculate time savings based on your driving speed with interactive chart.

Car Purchase Guide

Guide and checklist for buying a used car.

Give Away Your Items

Platforms to give your items a second life.

💰

Finance

Tax Comparator

Compare different tax regimes (individual, civil union, married) taking into account new withholding tax rules.

Gross/Net Salary Calculator

Convert your gross salary to net with detailed contributions breakdown.

Overtime Hours Converter

Calculate your overtime pay.

Real Estate Purchase Estimate

Calculate your borrowing capacity, notary fees, and total acquisition cost.

Expense Sharing

Easily calculate fair expense sharing between multiple people.

Investment Tax Filing Help

Guide to declare your capital gains and investments.

🏃‍♂️

Health & Sports

Calorie Calculator

Calculate your caloric needs based on your goals (cutting, maintenance, bulking).

Daily Workout Scheduler

Organize your weekly sports schedule and export it to your calendars.

Running and Hiking

Links to the best apps (AllTrails, IGN Rando, Spartan Race).

PHQ-9 Mental Health Questionnaire

Assess your mental health with the scientifically validated PHQ-9 questionnaire.

💼

Work

Interview Preparation

Complete guide to prepare your job interviews.

Job Search

List of the best job search platforms.

Resume Creation

Resources and tools to create a professional resume.

🔧

Utilities

Unit Converter

Convert weight, length, temperature easily.

Password Generator

Generate secure passwords with customizable options.

Lorem Ipsum Generator

Generate placeholder text with customizable options.

Text ↔ PDF Converter

Convert your texts to PDF and vice versa.

Image ↔ PDF Converter

Convert your images to PDF and vice versa.

JSON ↔ CSV Converter

Convert your data between JSON and CSV formats.

PDF Compressor

Compress your PDF files to reduce their size while preserving quality.

Image Compressor

Compress and resize your images to reduce their size while preserving quality.

Email Validator

Verify email address validity with source code available.

Phone Validator

Verify phone number validity with source code available.

Photo Watermark & Copyright

Protect your images with visible and invisible watermarks (steganography).

Merge PDF

Merge multiple PDF files, images (PNG/JPG), and texts into a single PDF document easily.

🏛️

Help & Services

Government Assistance

Discover all the assistance you are entitled to.

Electronic Toll Solutions

Comparison of different electronic toll solutions.

Drive Synchronization

Comparison of cloud storage solutions.

Secure Documents

Solutions to store your important documents securely.

Speed Test & Operator Comparator

Test your internet and mobile speed, compare operators (Free, Orange, SFR, Bouygues, Starlink) based on your area and budget.

🎮

Entertainment

French Theme Parks

List of theme parks in France with tips and deals.

Where to Watch Your Shows

Comparison of streaming platforms and alternative solutions.

Build Your PC

Guide and resources to assemble your computer.

UFO Reporting

Official platforms to report aerospace phenomena.

Dead Pixel Test

Test your screen to detect faulty pixels.

Are You a Good Human?

Test your reflexes and cognitive abilities.

🔐

Security

Internet Anonymity Tester

Analyze the data your browser exposes: IP address, WebRTC leaks, fingerprinting, permissions, and get an overall anonymity score.

Have You Been Hacked?

Check if your data has been compromised in data breaches with Have I Been Pwned.

Anti-Ransomware

Tools and resources against ransomware viruses.

Find Your Android

Find your lost or stolen Android phone with Google's official tool.

VPN Comparison

Comparison of the best VPN solutions.

Email Finder

Find professional email addresses with Hunter.io.

⚠️

Danger

Takata Airbag Check

Check if your vehicle has defective Takata airbags and get replacement procedures.

Missing a tool?

If you have a tool idea that could be useful, feel free to suggest it to me!

Suggest a tool

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