UD5 Toolkit
Bandwidth & Download Time Calculator - Online
Estimate how long it takes to download/upload a file given bandwidth speed. Also convert between bits and bytes.
Expense Tracker - Online Simple Budget & Spend Logger
Expense Tracker
Simple online budget & spend logger. No sign-up required. All data stored locally in your browser.
Total Spent
$0.00
This Month
$0.00
Today
$0.00
Budget Left
--
Add New Expense
Filter:
| Date | Category | Amount | Description | Action |
|---|
No expenses recorded yet. Add your first expense above!
Frequently Asked Questions
Absolutely! All data is stored locally in your browser using localStorage. No data is sent to any server. You have full control over your information.
Currently, you can visually review all entries in the table. A CSV export feature is on the roadmap. In the meantime, you can copy-paste rows for manual backup. Your data persists in the browser until you clear it.
Click the "Set Budget" button inside the Budget Left card. Enter your desired monthly amount and save. The tracker will then display how much you have left, along with a color-coded progress bar.
This version uses a generic dollar sign ($) to keep things simple. Future updates may include currency selection. If you need a different symbol, you can still use the tool – all calculations remain the same.
Yes! Select "Other (Custom)" from the category dropdown and type your own label (e.g., Health, Pets, Gifts). It will appear in your filter options automatically.
Because we rely on localStorage, clearing your browser cache or site data will delete all recorded expenses. Regularly back up important data if needed.
dBm to Watts Converter - Online RF Power Unit Calculator
Convert between dBm, milliwatts, and watts. Simple calculator for RF engineers and WiFi signal analysis. Instant local calculation.
USD Inflation Calculator - Online Consumer Price Index Estimator
Calculate the buying power of US dollars between any two years using official CPI data (updated annually). See how inflation erodes purchasing power. Local.
Speaker Wire Gauge Calculator - Online Length & Impedance Guide
Find the correct wire gauge for speaker cables based on length and speaker impedance to avoid signal loss. Quick audio reference. Local.
Decimal to IEEE 754 Converter - Online Float Representation
Convert a decimal number to 32-bit single precision IEEE 754 format. See sign, exponent, mantissa bits. Developer tool.
Countdown to Date - Online Custom Event Timer
Create a personal countdown to any future date (birthday, vacation, launch). Shows days, hours, minutes, seconds. Locally stored.
Audio to MIDI Converter - Online Transcribe Melody
Analyze a monophonic audio recording and convert the pitch into a MIDI file. Perfect for capturing musical ideas. Client-side.
Binary Calculator - Online Add Subtract Multiply Binary Numbers
Calculate with binary numbers: addition, subtraction, multiplication, and division. Also bitwise AND, OR, XOR. Programmer's tool, fully client-side.
BMI Chart & Ideal Weight Table - Online Reference
Look at a color‑coded BMI table for your height and see the healthy weight range. Simple reference.
Decimal to IEEE 754 Binary - Online Float Representation
Enter a decimal number and see its 32‑bit and 64‑bit IEEE 754 representation. Learn sign, exponent, mantissa.
Ukulele Tuner - Online GCEA Standard Tuning Notes
Play reference pitches for standard ukulele tuning. Also works for baritone and other variations. Simple and local.
Currency Symbol Lookup - Online Find $ € ¥
Search by country or currency name to find its symbol and code. Quick static reference for international business.
Media Session API Demo - Online Now Playing Widget
Set media metadata and play/pause controls for the OS media widget. Test action handlers. Perfect for web audio apps.
Trip Budget Calculator - Online Estimate Travel Costs by Category
Plan your travel budget by entering flights, accommodation, meals, activities, transport. See cost breakdown and per-person share. Fully local.
NPV Calculator - Online Net Present Value & IRR
Enter cash flows and discount rate to compute Net Present Value and Internal Rate of Return. Finance 101.
Simple Budget Worksheet - Online Monthly Income Expense
Fill out a clean budget worksheet with income and expense categories. See totals and print. No data stored.
Event Budget Planner - Online Party Expense Estimator
Plan a party or event budget by category (venue, food, decorations). See total and cost per guest. Export summary.
Envelope Budget Planner - Online Cash Category Allocator
Allocate your monthly income into virtual envelopes by category. Track spending and see remaining balances. LocalStorage.
Loan Calculator - Online EMI & Amortization Schedule Generator
Calculate monthly EMIs for any loan type and see the detailed amortization schedule. Compare different interest rates and tenures with instant results.