LocalToolbox : Offline Tools

Local Toolbox is a privacy-first, fully offline utility app that now includes 180 practical tools for daily life, work, local records, study, and professional use.

It brings measurement tools, timers, date and unit converters, text utilities, developer tools, finance and record tools, field and workplace helpers, and fun utilities into one app. Many small tools that would normally require separate downloads are already here and ready to use.

Everything runs locally on your device. No login, no internet required, no cloud sync, no content upload, and no ads, subscriptions, or in-app purchases getting in the way. It is built for people who want practical tools without privacy trade-offs.

Instead of solving only one narrow problem, Local Toolbox is designed as an offline toolbox worth keeping on your phone over time. You can start with the tools you already need, then keep exploring and discover many more that become useful in real situations.

Key features include:

Measurement, timer, date, and unit conversion tools

Text utilities, JSON, regex, UUID/ULID, JWT, URL parsing, Text Find and Replace, and Voice to Text

Everyday helpers like bill split, unit price compare, work hours, time zone conversion, a general Date Calculator, and Exam Countdown

Finance and record tools such as compound growth, fixed deposit, recurring investment, goal planning, mortgage comparison, Simple Ledger, savings records, gift records, and local logs for borrowing, inventory, warranty, recurring payments, receipts, and medication

Professional tools for engineering, workplace, logistics, renovation, and field use

Fun tools like Lucky Spinner, coin toss, reaction speed, color guess, a Yes / No Decider, Paid Slacking Tracker, and more

Supports Simplified Chinese, Traditional Chinese, English, Japanese, Korean, Spanish, Brazilian Portuguese, German, and French.

Feature requests and improvement ideas are welcome. All feedback is reviewed regularly and helps guide future updates:

Email: [email protected]

Or leave thoughts in an App Store review