ToolSG
Free Singapore calculators for HDB affordability, CPF, GST, SORA, school age, and everyday tools. Fast, accurate, no sign-up.
Tools
Housing
HDB Affordability Calculator (MSR & TDSR)
See how much HDB flat you can afford in Singapore with MSR, TDSR, CPF, and HDB vs bank loans
Property True Cost Calculator
Full cost of owning an HDB flat or condo - stamp duty, CPF accrued interest, property tax, break-even price and real profit on sale
HDB Bulky Item Removal Finder
Find official bulky-item collection rules, booking links and phone numbers for all 19 Town Councils
CPF & Retirement
Tax & Benefits
Work & National Service
School & Family
Transport & Rates
Environment & Health
Flood Alerts Across Singapore
Track official flood alerts, affected locations, and cleared notices across Singapore by date or time
Dengue Cluster Checker
View active dengue clusters in Singapore on an interactive map using official NEA open data
PM2.5 Air Quality Monitor
Monitor real-time PM2.5 air quality levels across Singapore with hourly updates
Singapore Weather Monitor
Check live temperature, humidity, rainfall and wind readings from NEA weather stations
More Singapore Tools
Unit Converters
Length Converter
Convert between different length units easily
Data Size Converter
Convert between bytes, KB, MB, GB, TB and more
Area Converter
Convert between Area units instantly, with every unit shown side by side.
Weight Converter
Convert between Weight units instantly, with every unit shown side by side.
Volume Converter
Convert between Volume units instantly, with every unit shown side by side.
Temperature Converter
Convert between Temperature units instantly, with every unit shown side by side.
Quantity Converter
Convert between Quantity units instantly, with every unit shown side by side.
Time Converter
Convert between Time units instantly, with every unit shown side by side.
Parts-per Converter
Convert between Parts-per units instantly, with every unit shown side by side.
Speed Converter
Convert between Speed units instantly, with every unit shown side by side.
Pace Converter
Convert between Pace units instantly, with every unit shown side by side.
Pressure Converter
Convert between Pressure units instantly, with every unit shown side by side.
Electric current Converter
Convert between Electric current units instantly, with every unit shown side by side.
Voltage Converter
Convert between Voltage units instantly, with every unit shown side by side.
Power Converter
Convert between Power units instantly, with every unit shown side by side.
Reactive power Converter
Convert between Reactive power units instantly, with every unit shown side by side.
Apparent power Converter
Convert between Apparent power units instantly, with every unit shown side by side.
Energy Converter
Convert between Energy units instantly, with every unit shown side by side.
Reactive energy Converter
Convert between Reactive energy units instantly, with every unit shown side by side.
Volumetric flow rate Converter
Convert between Volumetric flow rate units instantly, with every unit shown side by side.
Illuminance Converter
Convert between Illuminance units instantly, with every unit shown side by side.
Frequency Converter
Convert between Frequency units instantly, with every unit shown side by side.
Angle Converter
Convert between Angle units instantly, with every unit shown side by side.
Torque Converter
Convert between Torque units instantly, with every unit shown side by side.
Electric charge Converter
Convert between Electric charge units instantly, with every unit shown side by side.
Calculators
Invoice Generator
Create professional invoices for Singapore businesses - Free and GST-ready
Freelance Invoice Generator
Create professional invoices for freelance work - Bill by the hour or project, free and PayNow-ready
Singapore Loan Repayment Calculator
Calculate monthly repayments, total interest, and payoff time for Singapore home, car, and personal loans
Store Profit Calculator
Compare two operating plans for a physical store and instantly see gross profit, break-even revenue, and monthly net profit
Encoders
HTML Entity Encoder / Decoder
Encode and decode HTML entities for safe display in web pages
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 to text - supports standard and URL-safe encoding
Text to Binary Converter
Convert Text to Binary instantly in your browser.
Binary to Text Converter
Convert Binary to Text instantly in your browser.
Hex to Binary Converter
Convert Hex to Binary instantly in your browser.
Binary to Hex Converter
Convert Binary to Hex instantly in your browser.
ASCII to Binary Converter
Convert ASCII to Binary instantly in your browser.
Binary to ASCII Converter
Convert Binary to ASCII instantly in your browser.
Decimal to Binary Converter
Convert Decimal to Binary instantly in your browser.
Binary to Decimal Converter
Convert Binary to Decimal instantly in your browser.
Text to ASCII Converter
Convert Text to ASCII instantly in your browser.
ASCII to Text Converter
Convert ASCII to Text instantly in your browser.
Hex to Decimal Converter
Convert Hex to Decimal instantly in your browser.
Decimal to Hex Converter
Convert Decimal to Hex instantly in your browser.
Octal to Binary Converter
Convert Octal to Binary instantly in your browser.
Binary to Octal Converter
Convert Binary to Octal instantly in your browser.
Octal to Decimal Converter
Convert Octal to Decimal instantly in your browser.
Decimal to Octal Converter
Convert Decimal to Octal instantly in your browser.
Hex to Octal Converter
Convert Hex to Octal instantly in your browser.
Octal to Hex Converter
Convert Octal to Hex instantly in your browser.
Text to Octal Converter
Convert Text to Octal instantly in your browser.
Octal to Text Converter
Convert Octal to Text instantly in your browser.
Text to Hex Converter
Convert Text to Hex instantly in your browser.
Hex to Text Converter
Convert Hex to Text instantly in your browser.
Text to Decimal Converter
Convert Text to Decimal instantly in your browser.
Decimal to Text Converter
Convert Decimal to Text instantly in your browser.
Developer Tools
JSON Formatter & Minifier
Format, validate, and minify JSON data online
World Clock
View current time across multiple cities and time zones worldwide
PHP Array JSON Converter
Convert between PHP arrays and JSON format
Meeting Time Optimizer
Find the best overlapping meeting times across different time zones
Unix Timestamp Converter
Convert Unix timestamps to dates and vice versa
JWT Expiration Checker
Check JWT token expiration and decode JWT payload
Line Ending Detector (LF vs CRLF)
Detect and convert between LF (Unix/Linux/macOS) and CRLF (Windows) line endings
What is My Timezone?
Automatically detect your current timezone, UTC offset, and time zone information
Markdown Previewer
Preview Markdown headings, lists, links, quotes, and code blocks live as you type
XML to JSON Converter
Convert XML to JSON in your browser, with no upload and no sign-up.
JSON to XML Converter
Convert JSON to XML in your browser, with no upload and no sign-up.
CSV to JSON Converter
Convert CSV to JSON in your browser, with no upload and no sign-up.
JSON to CSV Converter
Convert JSON to CSV in your browser, with no upload and no sign-up.
TSV to JSON Converter
Convert TSV to JSON in your browser, with no upload and no sign-up.
JSON to TSV Converter
Convert JSON to TSV in your browser, with no upload and no sign-up.
JSON to plain text Converter
Convert JSON to plain text in your browser, with no upload and no sign-up.
JSON Viewer
Explore JSON as a collapsible tree instead of a wall of text.
JSON Validator
Check whether JSON is valid and see exactly where it breaks.
JSON Minifier
Strip whitespace from JSON to make it as small as possible.
JSON Editor
Clean up and re-indent JSON as you edit it.
Text Tools
Spin Wheel Random Picker
Import a list, spin the wheel, and randomly pick a name or item
Text Minifier
Minimize text by removing unnecessary whitespace
Text Diff Tool
Compare two texts and highlight the differences
Unicode Character Explorer
Search, explore, and copy Unicode characters and symbols
Hidden Character Cleaner
Detect and remove hidden characters, invisible spaces, and special Unicode characters
Copy-Paste Sanitizer
Clean text copied from websites, PDFs, and documents - remove formatting and special characters
Text to Slug Converter
Turn any headline into a clean, URL-safe slug.
Case Converter
Convert text between eleven letter cases, including programming conventions.
Remove Line Breaks
Strip or tidy line breaks in pasted text.
Text Repeater
Repeat a line or block of text as many times as you need.
Text Sorter
Sort lines alphabetically, by length, or numerically — with optional deduplication.
Comma Separator
Convert a list of lines into a comma-separated list, and back again.
Word Counter
Count words, characters, sentences and paragraphs, with reading time.
Lorem Ipsum Generator
Generate placeholder text by paragraph, sentence or word.
Random Word Generator
Generate random English words for names, prompts and testing.
Image Tools
Monitor Color Test
Run fullscreen monitor color tests to spot dead pixels, tint, banding, and backlight issues
Mic, Speaker & Camera Test
Check microphone input, speaker output, and camera preview directly in your browser
JPG to PNG Converter
Convert JPEG photos to lossless PNG in your browser.
PNG to JPG Converter
Convert PNG images to JPEG with adjustable quality.
WebP to PNG Converter
Convert WebP images to PNG for wider compatibility.
WebP to JPG Converter
Convert WebP images to JPEG with adjustable quality.
PNG to WebP Converter
Convert PNG images to WebP for smaller files.
JPG to WebP Converter
Convert JPEG photos to WebP for smaller files.
ICO to PNG Converter
Extract a Windows icon into a standard PNG image.
PNG to BMP Converter
Convert PNG images to uncompressed BMP.
JPG to BMP Converter
Convert JPEG photos to uncompressed BMP.
PNG to ICO Converter
Turn a PNG into a Windows icon or favicon.
JPG to ICO Converter
Turn a JPEG into a Windows icon or favicon.
Image Converter
Convert any image between PNG, JPG, WebP, BMP and ICO.
JPG Converter
Convert JPEG photos to PNG, WebP, BMP or ICO.
ICO Converter
Convert Windows icons to PNG, JPG, WebP or BMP.
Image Resizer
Resize an image to exact dimensions, with or without the aspect ratio locked.
Image Enlarger
Scale an image up by a percentage.
Rotate Image
Rotate an image by 90, 180 or 270 degrees.
Flip Image
Mirror an image horizontally or vertically.
Image Cropper
Crop an image to a rectangle you specify.
Image to Base64
Convert an image into a Base64 data URL you can paste into CSS or HTML.
Base64 to Image
Turn a Base64 data URL back into a downloadable image.
Website Tools
Random Password Generator
Generate secure random passwords
QR Code Generator
Create QR codes for URLs, text, and more
QR Code Decoder
Decode and read QR codes from images or camera
World Typhoon Tracker
Track active typhoons and tropical storms worldwide on a live map with track paths and wind speeds
What is My IP Address?
Instantly see your public IP address (IPv4 or IPv6) - detects the real visitor IP even behind Cloudflare
SEO Keyword Difficulty Checker
Estimate keyword competition and discover easier long-tail SEO opportunities
SERP Snippet Preview Tool
Preview how your title, URL, and meta description may appear in Google search results
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