A working index of tools you'll actually use.
Curious Assistant collects the calculators, converters and generators you'd otherwise bookmark from ten different sites — indexed, kept up to date, and free to use without an account.
Browse by section
Seven of the twelve sections in the index — each one is its own page with every tool inside it.
GPA and CGPA calculators, semester planners, exam and attendance tools.
20 tools DEV Developer & CodeFormatters, validators, converters and generators for everyday coding.
25 tools FIN Finance & BusinessLoan and investment calculators, tax helpers and business generators.
26 tools HLT Health & FitnessBMI, BMR, calorie and training calculators for everyday use.
18 tools UTL Utilities & ProductivityImage tools, timers, notepads and everyday productivity helpers.
32 tools DSN Design & CreativeColor palettes, gradients, favicons and social graphics generators.
14 tools SEO SEO & WebmasterMeta tags, schema markup, robots.txt and site status checks.
11 toolsFrequently used
The dozen tools people come back to most. Filter by section, or search the full index above.
GPA Calculator
Work out your semester GPA from letter grades and credit hours.
DEV · DeveloperJSON Formatter
Validate and pretty-print JSON, with inline error locations.
DEV · DeveloperPassword Generator
Create strong random passwords, or memorable passphrases.
FIN · FinanceEMI Calculator
Estimate monthly loan instalments and total interest paid.
HLT · HealthBMI Calculator
Check your BMI against standard health categories.
UTL · UtilitiesImage Compressor
Shrink image file size in your browser, no upload required.
UTL · UtilitiesUnit Converter
Convert length, weight and temperature between common units.
DSN · DesignColor Palette Generator
Pull a palette from an image, or generate one at random.
STU · StudentScientific Calculator
Trig, logs and exponents, without hunting for a physical one.
UTL · UtilitiesQR Code Generator
Turn a link or text into a scannable QR code.
FIN · FinanceCompound Interest
Project investment growth over time with regular contributions.
STU · StudentTyping Speed Test
Measure words per minute and accuracy on a short passage.
How the index is kept
Nothing leaves your browser
Every calculation runs client-side. No signup, and nothing you type is stored on our servers.
One tool, one page
Each tool lives at a single address with its own explanation, so links and search results stay stable.
Built on request
Most tools started as a specific request from a student or developer who needed exactly that.
Reviewed, not abandoned
Tools are checked for accuracy on a schedule, not left to drift once they're published.
Looking for something specific?
Search the full index, or browse it by section.