UD5 Toolkit
Water Intake Tracker - Online Daily Hydration Logger
Log your daily water consumption with one click. Set a goal and track progress. Data stored locally for privacy. Simple and clean interface.
Receipt & Expense Logger - Online Simple Finance
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Currency Exchange Fee Calculator - Online Hidden Cost Revealer
Compare the real cost of currency exchange including hidden mark-ups and service fees. See how much you lose per transaction. Local educational tool.
Bill Splitter with Tip & Tax - Online Shared Expense Divider
Enter total bill, tip %, tax amount, and number of people. Instantly see what each person owes. Handles uneven splits too. No data saved.
Meeting Cost Calculator - Online Time & Money Waster
Calculate the real monetary cost of a meeting by attendees' hourly rates. A humorous yet insightful productivity tool. All local calculation.
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.
Phishing Email Checker - Online Suspicious Link Analyzer
Paste email headers or body text to quickly spot phishing signs, suspicious domains, and obfuscated links. Educational and private.
Simple Tax Credit Checker - Online Estimate GST/HST & Climate
Quick eligibility estimator for Canadian GST/HST credit and climate action incentive based on income and family size. For informational purpose only.
Tick Bite & Symptom Logger – Online Potential Lyme Tracker
Record a tick bite date and daily symptoms. Visual timeline to share with doctor. Private and local.
WAV Header Viewer - Online Inspect Audio Format
Drop a WAV file and see its full header: sample rate, bit depth, channels, and chunk structure. Raw bytes explained.
Custom Reminder Pad - Online Simple Alarm Notes
Write a short note and set a specific time for a browser notification reminder. Great for quick one‑offs. Local.
CORS Header Debugger - Online Check Cross‑Origin Access
Enter a URL and see its CORS headers. Understand why a fetch fails. Check preflight responses. Client‑side debugger.
Parts‑of‑Speech Tagger - Online Text Analyzer
Paste a sentence and see each word tagged with its part of speech (noun, verb, adjective). Local rule‑based analysis.
D&D Magic Item Price Calculator – Online by Rarity & Edition
Select item rarity and consumable state to get a price range based on Dungeon Master's Guide tables. Quick reference.
Audio Trimmer - Online Cut MP3 WAV Locally
Select a part of an audio file and trim it to the selection. Playback preview. Download the cropped audio. No upload.
Online Voice Recorder & Downloader - Mic to WAV
Record audio from your microphone and save as WAV file. Visual waveform while recording. Simple and privacy-friendly; audio stays in your browser.
HTTP Status Code Reference - Online Search & Meanings
Look up any HTTP status code and see its meaning, RFC reference, and example. Full offline reference.
HTTP Status Codes Reference - Online Quick Cheat Sheet
A complete reference of HTTP status codes with explanations. Search and filter by code or category. Useful for API developers and web debugging. Static and fast.
SSML Marker Demo - Online TTS Events & Highlights
Use SSML <mark> tags to fire events during TTS. See text highlighted as it is spoken. Understand speech synthesis timing. local.
Work Break Reminder - Online Eye‑Care & Stretch Timer
Set a timer that reminds you to take a break, stretch, or follow the 20‑20‑20 rule. Desktop notification supported. Runs offline.
Units of Measurement Reference - Online Quick Guide
Search and browse a comprehensive table of SI units and common imperial conversions. For students and engineers.
Online Audio Trimmer & Splitter - Cut MP3/WAV Locally
Trim audio files or split into multiple segments using visual waveform. Set start/end markers precisely. Download segments or merged track. Purely browser-based.
WHOIS Domain Lookup – Online Simple Registration Check
Enter a domain and see public WHOIS info via a free API with rate limiting. Quick domain check.
HTTP Headers Reference - Online Search & Descriptions
Browse a searchable list of standard HTTP request and response headers with explanations. Quick dev help.
Advanced Online Scientific Calculator - History & Memory
Full scientific calculator with history tape, memory keys, and unit conversions. All in your browser, no install.
Emergency Kit Checklist - Online Disaster Preparedness Planner
Interactive checklist to build an emergency go-bag. Covers water, food, first aid, tools, documents. Track progress locally. Essential for disaster preparedness.
Global Meeting Time Finder - Online Multi‑Zone Overlap Tool
Select cities and see a 24-hour grid highlighting compatible meeting times. Drag to find a slot that works for everyone. Daylight saving aware.
Ohm's Law Calculator - Online Voltage Current Resistance Power
Enter any two values (voltage, current, resistance, power) and compute the others. Visual triangle helper and formula display. Instant local calculation.
SQL Indenter - Online Just Prettify Your Queries
Format your SQL code with consistent indentation. Choose 2 or 4 spaces. No syntax validation, just neat output.
Number Memory Trainer - Online Recall Digits
A sequence of digits flashes for a few seconds. Type it back. Increase length. Improve your working memory.
Zero‑Width Character Detector - Online Find Hidden Unicode
Paste text and instantly see if it contains hidden zero‑width characters often used in steganography. Reveal invisible payloads.