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Browse 142 current Toolszzz utilities organized by category, including calculators, finance, education, technology, developer, text, generator, security, design, SEO and PDF tools.

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Browse 142 current Toolszzz utilities by category, or search by the task you need to complete.

142 tools available

$

Finance Calculators

Loans, investments, profit, liquidity and practical business calculations.

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$Finance Calculators
Loan CalculatorEstimate monthly payment, total repayment and interest.
↗Finance Calculators
Investment CalculatorExplore compound growth and monthly contributions.
PFinance Calculators
Profit CalculatorCalculate profit and profit margin from revenue and costs.
RFinance Calculators
Current Ratio CalculatorCalculate current assets divided by current liabilities.
PUFinance Calculators
Profit Per Unit CalculatorCalculate unit profit and margin.
EPSFinance Calculators
EPS CalculatorCalculate basic earnings per share.
YFinance Calculators
Current Yield CalculatorCalculate bond current yield.
QRFinance Calculators
Quick Ratio CalculatorCalculate quick assets divided by liabilities.
RGFinance Calculators
Revenue Growth CalculatorCalculate period-over-period revenue growth.
SSFinance Calculators
Safety Stock CalculatorEstimate a basic inventory buffer from usage and lead-time ranges.
%Finance Calculators
Salary Hike Percentage CalculatorCalculate salary increase amount and percentage.
ITFinance Calculators
Inventory Turnover CalculatorCalculate turnover from COGS and average inventory.
DFinance Calculators
Inventory Turn Days CalculatorEstimate inventory days from turnover and period length.
Edu$Finance Calculators
College Savings CalculatorEstimate future savings from balance, contributions, return and time.
LTVFinance Calculators
Loan to Value CalculatorCalculate LTV from loan balance and property value.
Home$Finance Calculators
Mortgage CalculatorEstimate fixed-rate monthly principal and interest.
♥

Health Calculators

BMI, BMR, weight, pace and other everyday adult health estimates.

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BMIHealth Calculators
BMI CalculatorCalculate adult BMI from height and weight.
BMRHealth Calculators
BMR CalculatorEstimate resting energy expenditure for adults.
−Health Calculators
Weight Loss CalculatorExplore a simplified calorie-deficit timeline.
PHealth Calculators
Pace CalculatorCalculate average pace and speed.
BMIHealth Calculators
Healthy Weight Range CalculatorEstimate an adult BMI-category weight range.
SwimHealth Calculators
Swimming Pace CalculatorCalculate average swim pace per 100 meters or yards.
∑

Math Tools

Percentages, averages, ratios, GCD, LCM and everyday number problems.

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123Math Tools
Basic CalculatorHandle everyday arithmetic and expressions.
x²Math Tools
Quadratic Equation CalculatorSolve quadratic equations and inspect the roots.
%Math Tools
Percentage CalculatorCalculate percentages, ratios and percentage change.
x̄Math Tools
Average CalculatorCalculate the arithmetic mean.
:Math Tools
Ratio CalculatorSimplify a positive whole-number ratio.
GMath Tools
GCD CalculatorFind the greatest common divisor.
LMath Tools
LCM CalculatorFind the least common multiple.
rMath Tools
Correlation Coefficient CalculatorCalculate Pearson correlation for paired numeric data.
nMath Tools
Sample Size CalculatorEstimate a simple survey sample size for a proportion.
⌚

Date & Time

Compare dates and times, measure elapsed periods and work with durations.

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⏱Date & Time
Time Difference CalculatorFind elapsed days, hours and minutes.
DDate & Time
Date Difference CalculatorFind the calendar-day difference between two dates.
+

Generators

Create or decode useful outputs such as QR data and generated values.

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QRGenerators
QR Code ScannerScan QR codes from images in supported browsers.
AaGenerators
Brat GeneratorCreate bold Brat-inspired text artwork with the current generator controls.
BizGenerators
Business Name GeneratorGenerate simple business-name ideas for brainstorming.
QR+Generators
QR Code GeneratorCreate a QR code from text or a URL and download PNG.
#?Generators
Random Number GeneratorGenerate random integers within an inclusive range.
Aa?Generators
Random String GeneratorGenerate random strings from selected character sets.
◐Generators
Coin FlipFlip a virtual coin once or many times.
TGenerators
Random Team GeneratorShuffle names into a chosen number of teams.
🎯Generators
Name Picker WheelSpin a simple picker and choose one pasted name at random.
CityGenerators
Random City GeneratorPick random cities from a curated sample list.
JobGenerators
Random Profession GeneratorGenerate profession names from a curated sample list.
SMSGenerators
SMS QR GeneratorCreate an SMS QR code from a phone number and message.
Aa

Text Tools

Count, transform and inspect text for writing and content workflows.

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AaText Tools
Word CounterCount words, characters, lines and estimated reading time.
AaText Tools
Case ConverterConvert text between common case styles.
#Text Tools
Character CounterCount characters, code points and bytes.
NmText Tools
Name FormatterClean capitalization and create common name display formats.
↓AaText Tools
Shortest Word FinderFind the shortest word or words, length and frequency.
123→AaText Tools
Number to Words ConverterSpell integers and decimal digits in US or British English.
ᴀᵃText Tools
Small Text GeneratorCreate Unicode small-cap, superscript and subscript text.
🙂Text Tools
Emoji CounterCount emoji, unique emoji and grapheme clusters.
␠␠Text Tools
Consecutive Space FinderFind runs of repeated ordinary spaces and clean them.
@Text Tools
Extract Email AddressesExtract email-like addresses from pasted text.
A|BText Tools
Word SplitterSplit text into words, lines or custom-delimited parts.
⏱Text Tools
Reading Time CalculatorEstimate reading time using an adjustable words-per-minute speed.
Aa…Text Tools
Dummy Text GeneratorGenerate placeholder text by paragraphs, sentences or words.
AaText Tools
Reading Level CheckerEstimate English readability with Flesch formulas.
×NText Tools
Text RepeaterRepeat text a chosen number of times with separators.
A→ZText Tools
Alphabetical SorterSort one item per line and optionally remove duplicates.
{}

Developer Tools

JSON, regex, Base64, UUID and other browser-friendly code utilities.

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IDDeveloper Tools
UUID Bulk GeneratorGenerate up to 500 UUID v4 values in the browser.
<>Developer Tools
HTML MinifierConservatively reduce HTML whitespace and comments.
SQLDeveloper Tools
SQL Keywords LowercaseLowercase common SQL keywords while preserving quoted text.
{}Developer Tools
JSON FormatterFormat, validate or minify JSON.
.*Developer Tools
Regex TesterTest JavaScript regular expressions.
RxDeveloper Tools
Regex Cheat SheetCommon regex tokens and flags.
64Developer Tools
Base64 EncoderEncode UTF-8 text as Base64.
64Developer Tools
Base64 DecoderDecode Base64 to UTF-8 text.
FNDeveloper Tools
File Name ShortenerShorten pasted file names in bulk while preserving extensions.
HTTPDeveloper Tools
HTTP Status Code LookupLook up stable HTTP response codes by number or phrase.
YMLDeveloper Tools
YAML ValidatorValidate YAML syntax and preview parsed JSON.
URLDeveloper Tools
Extract URLsExtract HTTP and HTTPS URLs from pasted text.
BBDeveloper Tools
HTML to BBCodeConvert common HTML formatting to plain BBCode.
%Developer Tools
Text to URL EncodeEncode or decode URL components in the browser.
ID✓Developer Tools
UUID ValidatorValidate UUID structure, version and RFC variant.
755Developer Tools
Unix Permissions ConverterConvert between 3-digit octal and rwx permissions.
FN✓Developer Tools
File Name CleanerClean file names in bulk while preserving extensions.
MDDeveloper Tools
Markdown EditorWrite Markdown and preview common formatting.
XMLDeveloper Tools
JSON to XMLConvert JSON objects and arrays to simple XML.
755Developer Tools
CHMOD GeneratorBuild Unix permissions and generate chmod command output.
CSSDeveloper Tools
CSS Transform GeneratorBuild and preview CSS transform values.
BB→HTMLDeveloper Tools
BBCode to HTMLConvert common BBCode tags to HTML source.
SEO

SEO Tools

Build metadata, social tags and URL-friendly page elements.

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</>SEO Tools
Meta Tag Generator OnlineGenerate SEO, Open Graph and Twitter meta tags in your browser.
/SEO Tools
Slug GeneratorCreate clean lowercase URL slugs.
OGSEO Tools
Open Graph GeneratorGenerate basic social metadata tags.
XSEO Tools
X-Robots-Tag Header GeneratorBuild HTTP indexing and preview directives.
/a-bSEO Tools
URL Slug CleanerClean text or a URL path segment into a readable slug.
PW

Security Tools

Generate passwords, secure tokens and SHA-256 hashes.

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PWSecurity Tools
Password GeneratorGenerate cryptographically random passwords.
#Security Tools
SHA256 Hash GeneratorGenerate SHA-256 text digests.
TKSecurity Tools
Secure Token GeneratorGenerate random hex or Base64URL tokens.
CSPSecurity Tools
CSP GeneratorBuild a conservative starter Content-Security-Policy header.
KEYSecurity Tools
API Key GeneratorGenerate random API-key style strings in the browser.
↔

Unit Converters

Convert temperatures, lengths, baking pans and common measurement formats.

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↔Unit Converters
Bra Size ConverterCompare common UK, US, EU, French and Australian sizes.
°Unit Converters
Temperature ConverterConvert Celsius, Fahrenheit and Kelvin.
↔Unit Converters
Length ConverterConvert metric and imperial length units.
▭Unit Converters
Baking Pan ConverterCompare pan area and recipe scale.
F

Science & Engineering

Work with force, work, kinetic energy and other practical formulas.

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FScience & Engineering
Force Calculator (F = ma)Calculate force, mass or acceleration from any two known values.
WScience & Engineering
Work CalculatorCalculate mechanical work.
KEScience & Engineering
Kinetic Energy CalculatorCalculate ½mv².
ØScience & Engineering
Pipe Weight CalculatorEstimate straight round pipe mass from geometry and density.
⚡

Technology Tools

Estimate download time, power use and electricity cost.

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↓Technology Tools
Download Time CalculatorEstimate ideal transfer time.
kWhTechnology Tools
kWh Cost CalculatorCalculate cost from kWh and tariff.
WTechnology Tools
Power Consumption CalculatorEstimate energy use from watts and time.
🔋Technology Tools
Laptop Battery Life CalculatorEstimate runtime from battery energy and average power draw.
GBTechnology Tools
Internet Data Usage CalculatorEstimate data transferred from rate, time and utilization.
♫Technology Tools
Music Streaming Data CalculatorEstimate streaming data from bitrate and listening time.
AirTechnology Tools
Air Purifier Size CalculatorEstimate clean-air flow from room volume and target ACH.
A+

Education Tools

Calculate marks, weighted grades and required exam scores.

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%Education Tools
Marks Percentage CalculatorCalculate a raw score percentage.
ΣEducation Tools
Weighted Grade CalculatorCalculate a weighted average grade.
TEducation Tools
Required Exam Score CalculatorEstimate the exam score needed for a target.
CLEducation Tools
Classroom Capacity CalculatorEstimate planning capacity from usable room area and a chosen space allowance.
%Education Tools
Attendance Percentage CalculatorCalculate current attendance and future classes needed or available to miss.
📄Education Tools
Copy Paper Requirement CalculatorEstimate sheets and reams for a print or photocopy job.
📚Education Tools
Library Shelf Space CalculatorEstimate linear shelf space and shelf sections for books.
⌂

Home & Construction

Estimate paint, concrete, tiles, wall area, mulch and topsoil.

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PHome & Construction
Paint CalculatorEstimate paint from area, coats and coverage.
CHome & Construction
Concrete CalculatorCalculate rectangular concrete volume.
▯Home & Construction
Wall Area CalculatorCalculate net wall area after openings.
▦Home & Construction
Tile CalculatorEstimate tiles with a waste allowance.
MHome & Construction
Mulch CalculatorCalculate mulch volume from area and depth.
THome & Construction
Topsoil CalculatorCalculate topsoil volume.
▯Home & Construction
Door Area CalculatorCalculate rectangular area for one or more same-size doors.
SHome & Construction
Sand Coverage CalculatorEstimate sand volume from area, depth and waste allowance.
NPKHome & Construction
Fertilizer CalculatorEstimate product needed from area, nutrient rate and product percentage.
CHome & Construction
Cement CalculatorEstimate material volume and bag count from bag yield.
→

Travel & Transport

Plan fuel cost, mileage and wider trip budgets.

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⛽Travel & Transport
Fuel Cost CalculatorEstimate fuel use and cost.
MPGTravel & Transport
Mileage CalculatorCalculate km/L, L/100 km and MPG.
$Travel & Transport
Trip Cost CalculatorEstimate fuel and other trip costs.
★

Lifestyle Tools

Useful calculators for coffee, pizza value and event planning.

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☕Lifestyle Tools
Coffee Ratio CalculatorCalculate water from coffee and ratio.
πLifestyle Tools
Pizza Size CalculatorCompare pizza area and value.
TLifestyle Tools
Wedding Seating CalculatorEstimate tables and capacity.
♈Lifestyle Tools
Zodiac Sign FinderFind the conventional Western tropical zodiac sign.
◐

Image & Design

Generate colors, gradients and contrast combinations for visual work.

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RGBImage & Design
RGB Color GeneratorBuild RGB colors and convert them to HEX and HSL.
#Image & Design
HEX Color GeneratorCreate or validate HEX colors and view RGB/HSL.
∿Image & Design
CSS Gradient GeneratorBuild gradient previews and copy CSS.
◐Image & Design
Contrast Color FinderPick black or white for stronger contrast.
AaImage & Design
Color Contrast CheckerCheck contrast ratio and common text thresholds.
▦Image & Design
Random Color Palette GeneratorGenerate palettes of 2 to 8 colors.
#→RGBImage & Design
HEX to RGB ConverterConvert HEX colors to RGB or RGBA with a live preview.
CMYKImage & Design
CMYK to HEX ConverterApproximate CMYK percentages as RGB and HEX.
PDF

PDF Tools

Edit PDF metadata and page viewing areas with browser-based processing.

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PDFPDF Tools
PDF Metadata EditorView and edit common PDF document properties in your browser.
✂PDF Tools
Crop PDF OnlineSet PDF page crop margins and download a new file.
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