New Tools

Generate a .gitignore from local project templates.

Generators

US-oriented 401(k) growth estimate with employee and employer contributions.

Calculators & Converters

Decrypt Tool Base AES-256-GCM payloads.

Security & Encoding

Encrypt text with AES-256-GCM.

Security & Encoding

Calculate exact calendar age.

Calculators & Converters

Build a full amortization schedule for a fixed-rate loan.

Calculators & Converters

Calculate the future value of an ordinary annuity.

Calculators & Converters

Estimate fixed payouts from a lump sum over a chosen term.

Calculators & Converters

Estimate an AP Biology score.

Specialized Calculators

Estimate an AP Calculus BC score.

Specialized Calculators

Estimate an AP Chemistry score.

Specialized Calculators

Estimate an AP English Language score.

Specialized Calculators

Estimate an AP English Literature score.

Specialized Calculators

Estimate an AP Psychology score.

Specialized Calculators

Estimate an AP U.S. History score.

Specialized Calculators

Estimate an AP World History score.

Specialized Calculators

Estimate APR when upfront fees are added to a loan.

Calculators & Converters

Calculate area for rectangle, triangle, circle, and trapezoid.

Calculators & Converters

Convert text into ASCII art.

Design & Creative

Decode ASCII/Unicode code points to text.

Text Tools

Simplify ratios and solve missing sides.

Utilities

Cut audio with timeline start and end selection.

Audio Tools

Join multiple audio files into one track.

Audio Tools

Shift audio pitch without speed-only tricks.

Audio Tools

Change audio speed so duration updates.

Audio Tools

Generate a waveform image from real audio.

Audio Tools

Estimate a car lease payment from cap cost, residual, and money factor.

Calculators & Converters

Compute arithmetic and geometric average returns from a list.

Calculators & Converters

Convert AVIF images to JPG using browser decoding.

Image Tools

Remove image backgrounds and download a transparent PNG where supported.

Image Tools

Estimate download time or required bandwidth for a file size.

Calculators & Converters

Generate a Code 39 barcode SVG.

Utilities

Encode or decode Base64 text.

Developer Tools

Turn a Base64 data URL into an image preview.

Image Tools

Add, subtract, multiply, or divide two numbers.

Calculators & Converters

Show battery level when the browser allows.

Utilities

Add, subtract, multiply, or divide large integers with BigInt precision.

Calculators & Converters

Convert and calculate with binary and decimal integers.

Calculators & Converters

Create a bionic-style reading preview.

Text Tools

Convert photos to black and white.

Image Tools

Generate blog title ideas from templates.

Generators

Estimate boat loan payments from price, down payment, rate, and term.

Calculators & Converters

Estimate bond price from face value, coupon, yield, and years.

Calculators & Converters

Paced inhale, hold, and exhale.

Typing & Productivity

Show available browser and platform details.

Utilities

Rough HVAC sizing estimate from room size and climate factor.

Calculators & Converters

Build a simple monthly budget and see surplus or shortfall.

Calculators & Converters

Estimate payments for a fixed-rate business loan.

Calculators & Converters

Generate business name ideas from templates.

Generators

Canadian mortgage estimate with semi-annual compounding convention.

Calculators & Converters

Estimate property sale capital gains tax.

Specialized Calculators

Capitalize the first letter of each word.

Text Tools

Estimate a car loan monthly payment.

Specialized Calculators

Compare a cash-back deal versus a low-interest financing offer.

Calculators & Converters

Estimate certificate of deposit maturity value.

Calculators & Converters

Build a printable checklist from lines.

Typing & Productivity

Find circumference, area, diameter, or radius of a circle.

Calculators & Converters

Flip a coin and tally heads or tails.

Typing & Productivity

Project multi-year college costs with tuition inflation.

Calculators & Converters

Calculate college GPA from credits and grades.

Specialized Calculators

Measure WCAG color contrast.

Design & Creative

Generate HEX color palettes with lockable swatches.

Generators

Calculate compound interest with flexible compounding frequency.

Calculators & Converters

Estimate concrete volume for slabs, footings, or columns.

Calculators & Converters

Estimate a confidence interval for a mean with known σ (z-interval).

Calculators & Converters

Quick conversions for length, mass, and temperature common pairs.

Calculators & Converters

Generate a corrupted test copy of a file.

Utilities

Countdown from a duration you set.

Typing & Productivity

Estimate interest cost and payoff time for a credit card balance.

Calculators & Converters

Find the payment needed to clear a card balance by a target date.

Calculators & Converters

Generate UNIX cron expressions with explanations.

Generators

Generate CSS border-radius with linked corners.

Generators

Generate CSS box-shadow with live preview.

Generators

Generate HTML and CSS for a button.

Design & Creative

Generate responsive CSS clamp() expressions.

Generators

Generate CSS clip-path shapes.

Design & Creative

Generate CSS filter effects.

Design & Creative

Generate CSS flexbox layout values.

Design & Creative

Generate glassmorphism CSS.

Design & Creative

Generate CSS linear and radial gradients with live preview.

Generators

Generate CSS text-shadow with a live preview.

Design & Creative

Generate CSS transform values.

Design & Creative

Generate synthetic CSV test rows.

Generators

Convert CSV files to XML.

Document & Data Tools

Convert decimal and binary storage units.

Calculators & Converters

Create a data URI from text or a file.

Utilities

Add or subtract days from a date, or find a date offset.

Calculators & Converters

Count the number of days between two dates.

Calculators & Converters

Find the weekday for any calendar date.

Calculators & Converters

Days between today and a target date.

Typing & Productivity

Compare separate debt payments to one consolidation loan.

Calculators & Converters

Estimate payoff time and interest for a single debt with fixed payments.

Calculators & Converters

Calculate front-end and back-end debt-to-income ratios.

Calculators & Converters

Spin a wheel of your options.

Typing & Productivity

Calculate density, mass, or volume from the other two values.

Calculators & Converters

Straight-line and declining-balance depreciation estimates.

Calculators & Converters

Read devicePixelRatio from this device.

Utilities

Estimate dew point from temperature and relative humidity.

Calculators & Converters

Roll dice and see each face.

Typing & Productivity

Calculate Euclidean distance between two points.

Calculators & Converters

Calculate down payment amount, percent, or required savings goal.

Calculators & Converters

Draw a signature and download a PNG.

Design & Creative

Estimate energy use and cost from power and time.

Calculators & Converters

Estimate wheel horsepower from quarter-mile ET and vehicle weight.

Calculators & Converters

Rough estate tax estimate using a taxable estate and rate/exemption you enter.

Calculators & Converters

Raise a base to a power and show scientific notation when helpful.

Calculators & Converters

List all positive factors of an integer.

Calculators & Converters

Create a PNG favicon from an image.

Design & Creative

US-oriented FHA payment estimate with upfront and annual MIP inputs.

Calculators & Converters

Inspect a file’s magic-number bytes.

Utilities

See what you need on the final exam.

Specialized Calculators

Solve common TVM problems: PV, FV, payment, rate, or periods.

Calculators & Converters

Custom-length focus countdown.

Typing & Productivity

Create stylish Unicode text fonts to copy and paste.

Design & Creative

Estimate trip fuel cost from distance, efficiency, and price.

Calculators & Converters

Grow a present amount (and optional deposits) into a future value.

Calculators & Converters

Calculate MPG or L/100km from distance and fuel used.

Calculators & Converters

Compute GDP via the expenditure approach: C + I + G + (X − M).

Calculators & Converters

Convert GIF images to PNG using the first frame.

Image Tools

Estimate a simple handicap differential and average handicap index.

Calculators & Converters

Compute a weighted course grade from component scores.

Calculators & Converters

Estimate gravel or crushed stone volume for a project area.

Calculators & Converters

Find the GCF/GCD of two or more integers.

Calculators & Converters

Model exponential decay using half-life.

Calculators & Converters

Generate hashtags from a topic using local rules.

Generators

Estimate heat index from temperature and relative humidity.

Calculators & Converters

Convert HEIC/HEIF photos to JPG.

Image Tools

Convert HEIC/HEIF photos to PNG.

Image Tools

Convert height between centimeters, meters, feet, and inches.

Calculators & Converters

Estimate interest-only and amortizing HELOC payments.

Calculators & Converters

Convert between hexadecimal and decimal values.

Calculators & Converters

Convert HEX colors to RGB.

Developer Tools

Calculate high school GPA with an editable scale.

Specialized Calculators

Estimate payments for a fixed home-equity loan.

Calculators & Converters

Estimate horsepower from torque and RPM.

Calculators & Converters

Convert an hourly wage into monthly and annual salary figures.

Calculators & Converters

Convert between hours, minutes, seconds, and decimal hours.

Calculators & Converters

Estimate a home price range from income, debts, and down payment.

Calculators & Converters

Generate a basic HTML5 document template.

Generators

Decode HTML entities into characters.

Developer Tools

Look up HTTP status codes.

Utilities

Convert ICO icon files to PNG images.

Image Tools

Search Tool Base icons and copy SVG.

Design & Creative

Extract common colors from an image.

Design & Creative

Update DPI/PPI metadata for print workflows without inventing detail.

Image Tools

Inspect available image metadata and EXIF details.

Image Tools

Pixelate images with adjustable block size.

Image Tools

Download a sized placeholder image.

Design & Creative

Encode images as Base64 data URLs.

Image Tools

Convert common images to WebP.

Image Tools

Estimate income tax from taxable income and a user-entered effective or marginal rate.

Calculators & Converters

Compare simple and compound interest growth on a principal.

Calculators & Converters

Solve for the interest rate given principal, payment, and term.

Calculators & Converters

Work and rest rounds on a timer.

Typing & Productivity

Invert image colors and download a new file.

Image Tools

Project investment growth with recurring contributions.

Calculators & Converters

Build an invoice and print or save it.

Design & Creative

Calculate IPv4 network, broadcast, and host range from CIDR.

Calculators & Converters

Convert IPv4 addresses to binary octets.

Security & Encoding

US traditional IRA growth estimate before tax considerations.

Calculators & Converters

Estimate internal rate of return from a series of cash flows.

Calculators & Converters

Trace JPG images into SVG vector paths.

Image Tools

Generate synthetic JSON mock records.

Generators

Inspect JSON in a collapsible tree.

Developer Tools

Decode JWT header and payload.

Security & Encoding

See keys as they are pressed.

Utilities

Convert KrutiDev text to Unicode.

Text Tools

General equipment/property lease payment estimate from cost and residual.

Calculators & Converters

Find the LCM of two or more integers.

Calculators & Converters

Calculate payment, total interest, and payoff for a fixed-rate loan.

Calculators & Converters

Compute logarithms with common, natural, or custom bases.

Calculators & Converters

Divide integers and show quotient and remainder.

Calculators & Converters

Calculate profit margin, markup, and selling price.

Calculators & Converters

Live Markdown to HTML preview.

Typing & Productivity

Convert Markdown to PDF.

Document & Data Tools

Illustrate marriage bonus/penalty using simple tax brackets you enter.

Calculators & Converters

Convert common mass units or compute mass from density and volume.

Calculators & Converters

Add, multiply, transpose, and invert small matrices.

Calculators & Converters

Find mean, median, mode, and range for a data set.

Calculators & Converters

Estimate the labor cost of a meeting.

Typing & Productivity

Caption your own image and download a PNG.

Design & Creative

Generate HTML meta tags for pages.

Generators

Extract MHTML HTML and save it as PDF.

PDF Tools

Calculate middle school GPA with a custom scale.

Specialized Calculators

Track total miles and average distance across trips.

Calculators & Converters

Map extensions and files to MIME types.

Utilities

Calculate molarity, moles, or solution volume.

Calculators & Converters

Sum atomic weights from a simple element count list.

Calculators & Converters

Estimate monthly mortgage payments, interest, and amortization.

Calculators & Converters

UK-oriented mortgage payment estimate using sterling defaults.

Calculators & Converters

See how extra payments shorten a mortgage and cut interest.

Calculators & Converters

Inspect mouse buttons and movement.

Utilities

Estimate mulch volume in cubic yards for a bed.

Calculators & Converters

Project mutual fund growth after expense ratio drag.

Calculators & Converters

Calculate net present value for a discount rate and cash flows.

Calculators & Converters

Generate arithmetic or geometric sequences.

Calculators & Converters

Solve voltage, current, resistance, or power using Ohm’s law.

Calculators & Converters

Write notes and download them as text.

Typing & Productivity

Show navigator.onLine and live changes.

Utilities

Generate Open Graph and optional Twitter card tags.

Generators

Approximate two-tailed p-value from a z-score (normal distribution).

Calculators & Converters

Score password length and variety.

Typing & Productivity

Estimate how long it takes to recover an initial investment.

Calculators & Converters

Solve for loan payment, principal, rate, or term from the other values.

Calculators & Converters

Crop PDF pages online.

PDF Tools

Clear PDF document info fields.

PDF Tools

Extract specific pages from a PDF.

PDF Tools

Insert page numbers into a PDF.

PDF Tools

Change the order of PDF pages.

PDF Tools

Convert PDF pages to WebP images.

PDF Tools

Watermark PDF pages with custom text.

PDF Tools

Estimate a simple defined-benefit pension from salary and years of service.

Calculators & Converters

Measure percent error between experimental and accepted values.

Calculators & Converters

Calculate sale prices after one or more percent-off discounts.

Calculators & Converters

Calculate nPr and nCr for selections and arrangements.

Calculators & Converters

Calculate personal loan payments and total interest.

Calculators & Converters

Paint pixel art and export PNG.

Design & Creative

Compress PNG images while preserving transparency when possible.

Image Tools

Convert PNG images into a proper ICO icon file.

Image Tools

Create a PDF from PNG images.

PDF Tools

Convert PNG images to WebP while aiming to keep transparency.

Image Tools

Focus and break intervals with a live timer.

Typing & Productivity

Discount a future amount to today's value.

Calculators & Converters

Factor an integer into primes.

Calculators & Converters

Draft a privacy-policy starter document.

Generators

Combine event probabilities with and/or/not operations.

Calculators & Converters

Solve for a missing side of a right triangle.

Calculators & Converters

Solve ax² + bx + c = 0 with real or complex roots.

Calculators & Converters

Generate synthetic IPv4 addresses for tests.

Utilities

Generate random everyday object names.

Generators

Pick random items from a list.

Typing & Productivity

Shuffle list lines into a new order.

Text Tools

Estimate purchase costs, equity, and simple property ROI.

Calculators & Converters

Compare current and refinance loan payments and break-even time.

Calculators & Converters

Generate regex from templates.

Developer Tools

Test regular expressions safely.

Developer Tools

Budget rent from income and estimate total move-in costs.

Calculators & Converters

Compare multi-year costs of renting versus buying a home.

Calculators & Converters

Estimate cash flow, cap rate, and cash-on-cash return for a rental.

Calculators & Converters

See total repayment cost for a loan at a chosen payment amount.

Calculators & Converters

Combine resistors in series or parallel.

Calculators & Converters

Project retirement savings with contributions and growth.

Calculators & Converters

Project retirement savings with user assumptions.

Specialized Calculators

Reverse the order of list lines.

Text Tools

Reverse characters in text.

Text Tools

Convert RGB colors to HEX.

Developer Tools

Solve a right triangle from two known sides or a side and an angle.

Calculators & Converters

Create RIPEMD-160 hashes from text or files.

Security & Encoding

Estimate a required minimum distribution using a life-expectancy divisor.

Calculators & Converters

Generate robots.txt crawl rules and sitemap lines.

Generators

Measure return on investment as gain and percentage.

Calculators & Converters

Convert between Roman numerals and integers.

Calculators & Converters

Estimate roof area and shingle squares from footprint and pitch.

Calculators & Converters

Calculate square roots, cube roots, or n-th roots.

Calculators & Converters

US Roth IRA growth estimate with annual contributions.

Calculators & Converters

Round numbers to a chosen number of decimal places or significant figures.

Calculators & Converters

Convert RTF files to PDF.

Document & Data Tools

Convert between hourly, monthly, and annual salary figures.

Calculators & Converters

Estimate commission from rate and sales.

Specialized Calculators

Add or remove sales tax from a price using a rate you provide.

Calculators & Converters

Estimate sample size for a proportion with a chosen confidence level.

Calculators & Converters

Plan a savings goal with deposits and compound growth.

Calculators & Converters

Scientific functions with degrees/radians, powers, roots, and logs.

Calculators & Converters

Convert between decimal and scientific notation.

Calculators & Converters

Show this device’s screen resolution.

Utilities

Generate strong random passwords.

Security & Encoding

Create SHA-384 hashes from text or files.

Security & Encoding

Approximate conversion between US, UK, and EU adult shoe sizes.

Calculators & Converters

Remove silent segments from audio.

Audio Tools

Compute simple interest and maturity amount.

Calculators & Converters

Generate an XML sitemap from a URL list.

Generators

Find the slope and equation of a line through two points.

Calculators & Converters

Export social-sized PNG canvases.

Design & Creative

Rough US Social Security benefit estimate from AIME and claiming age factor.

Calculators & Converters

Solve speed, distance, or time from the other two values.

Calculators & Converters

Calculate area in square feet from length and width measurements.

Calculators & Converters

Estimate stair risers, treads, and total run from total rise.

Calculators & Converters

Compute mean, median, variance, and standard deviation.

Calculators & Converters

Elapsed time with laps.

Typing & Productivity

Estimate student loan payments and total interest.

Calculators & Converters

Calculate surface area for box, sphere, and cylinder.

Calculators & Converters

Create SVG shapes and copy markup.

Design & Creative

Convert SVG graphics to JPG with a solid background.

Image Tools

Estimate take-home pay after tax and deduction percentages you enter.

Calculators & Converters

Generate a temporary-looking test email address.

Generators

Draft a terms-of-use starter document.

Generators

Compare two texts and highlight changes.

Text Tools

Repeat text a set number of times.

Text Tools

Convert text into Unicode code points.

Text Tools

Turn typed text into a handwriting-style PNG.

Text Tools

Render text as a PNG image.

Text Tools

Speak text with built-in browser voices.

Utilities

Convert TIFF images to JPG using a browser decoder.

Image Tools

Estimate how many tiles you need for a floor or wall.

Calculators & Converters

Add or subtract hours, minutes, and seconds.

Calculators & Converters

Calculate worked hours between clock-in and clock-out with a break.

Calculators & Converters

Measure the duration between two date-times.

Calculators & Converters

Compare local times using IANA time zone identifiers.

Calculators & Converters

Convert date/time between time zones.

Calculators & Converters

Compare tire diameters and speedometer impact between sizes.

Calculators & Converters

Add, complete, and export tasks.

Typing & Productivity

Estimate totaled-car settlement value.

Specialized Calculators

Estimate tree removal cost as a range.

Specialized Calculators

Solve triangle sides and area from SSS, SAS, or ASA data.

Calculators & Converters

Convert TXT files to CSV.

Document & Data Tools

Convert TXT files to DOCX.

Document & Data Tools

Test your typing speed and accuracy online.

Typing & Productivity

Convert Unicode Devanagari to KrutiDev.

Text Tools

Split a URL into its parts.

Utilities

Convert text into clean URL slugs.

Generators

Parse this browser’s user agent.

Utilities

Generate random usernames from local word rules.

Generators

Build campaign URLs with UTM parameters.

Generators

US VA loan payment estimate with optional funding fee.

Calculators & Converters

Crop a region from video.

Video Tools

Cut a portion from video.

Video Tools

Merge multiple videos in order.

Video Tools

Change video playback speed.

Video Tools

Live viewport width and height.

Utilities

Estimate single-phase DC/AC voltage drop in a conductor.

Calculators & Converters

Calculate volumes for box, sphere, cylinder, and cone shapes.

Calculators & Converters

Copy original HTML page starters.

Design & Creative

Preview your webcam and capture a snapshot.

Utilities

Compress WebP images with adjustable quality.

Image Tools

ISO week number for any date.

Typing & Productivity

Convert between newtons and kilograms-force style weight estimates on Earth.

Calculators & Converters

Credit-weighted GPA from your grade scale.

Specialized Calculators

Average scores by category weight.

Specialized Calculators

Estimate wind chill temperature using the NWS formula.

Calculators & Converters

Hours worked minus break time.

Typing & Productivity

Convert a raw score to a z-score using mean and standard deviation.

Calculators & Converters