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ToolGrid AI

The everyday collection

190 tools. Everyday answers.

From a better grocery deal to a clearer workday: practical tools for your money, home, files and plans. All free, with no account required.

Popularity data is not available yet. “Most Used” highlights editorial picks, not measured usage. The numbered order places these picks first, then groups the remaining tools by category and name.

Most Used

Editorial picks

Pick 1 · Calculators

Discount Calculator

Find the final price and savings from a percentage discount.

Pick 2 · Calculators

Monthly Budget Balance

Compare monthly income with housing, food, travel and other expenses.

Pick 3 · Calculators

Tip & Split Calculator

Calculate a tip and divide the total bill between people.

Pick 4 · Calculators

Recipe Ingredient Scaler

Scale an ingredient amount to a different number of servings.

Pick 5 · Calculators

Appliance Electricity Cost

Estimate appliance energy use and cost from watts, operating hours and your tariff.

Pick 6 · Calculators

Unit Price Comparison

Compare two package prices using quantities in the same unit.

Browse the collection

Full tool directory

190 of 190 tools

  1. 1Discount CalculatorFind the final price and savings from a percentage discount.Calculators
  2. 2Monthly Budget BalanceCompare monthly income with housing, food, travel and other expenses.Calculators
  3. 3Tip & Split CalculatorCalculate a tip and divide the total bill between people.Calculators
  4. 4Recipe Ingredient ScalerScale an ingredient amount to a different number of servings.Calculators
  5. 5Appliance Electricity CostEstimate appliance energy use and cost from watts, operating hours and your tariff.Calculators
  6. 6Unit Price ComparisonCompare two package prices using quantities in the same unit.Calculators
  7. 7Date Difference CalculatorCount elapsed calendar days between two dates in UTC.Calculators
  8. 8Journey Fuel CostEstimate fuel volume and trip cost using distance and liters per 100 kilometers.Calculators
  9. 9Reading & Speaking TimeEstimate duration from word count and your chosen words-per-minute pace.Text
  10. 10CSV to JSONConvert comma-separated tables with quoted fields to JSON objects.Developer
  11. 11Image CropperCrop a rectangular area using exact pixel coordinates.Image
  12. 12Remove Empty LinesDelete blank or whitespace-only lines from a pasted list.Text
  13. 13Delete PDF PagesRemove selected pages while keeping the remaining pages in order.PDF
  14. 14Duplicate PDF PagesAppend copies of selected pages to a PDF.PDF
  15. 15PDF Metadata ViewerInspect page sizes, page count and standard document properties.PDF
  16. 16Remove PDF MetadataClear standard title, author and other document properties; not a redaction tool.PDF
  17. 17Reorder PDF PagesArrange PDF pages in a custom order, including repeated pages.PDF
  18. 18Favicon PNG GeneratorMake square 16, 32 and 48-pixel PNG icons in one ZIP.Image
  19. 19Image Border MakerAdd a solid-color border around an image without cropping it.Image
  20. 20Image Brightness AdjusterLighten or darken photos and export PNG copies.Image
  21. 21Image Contact SheetArrange several images into a numbered thumbnail sheet.Image
  22. 22Image PixelatorCreate a blocky pixel-art effect; not secure redaction.Image
  23. 23Image WatermarkerAdd a centered text watermark to photos in a batch.Image
  24. 24Invert Image ColorsCreate a photographic negative by inverting RGB colors.Image
  25. 25Photo Print SizeCalculate print dimensions from image pixels and chosen pixels per inch.Image
  26. 26Rounded-Corner ImageCreate a PNG with transparent rounded corners.Image
  27. 27Sepia Photo FilterApply a warm sepia effect to one image or a batch.Image
  28. 28Add Prefix and Suffix to LinesWrap each line with a prefix and suffix of your choice.Text
  29. 29Combine Unique ListsCombine two lists and keep each exact entry once in its first-seen order.Text
  30. 30Common Items Between ListsFind unique exact lines present in both lists.Text
  31. 31Delimited Text to LinesSplit a pasted string by a literal delimiter and create one item per line.Text
  32. 32Duplicate Line ReportReport repeated exact lines and how often each occurs.Text
  33. 33Email Address ExtractorExtract unique email-like addresses from pasted text; no deliverability check.Text
  34. 34Filter Lines by TextKeep or remove lines containing a literal search phrase.Text
  35. 35HTML to Plain TextExtract text from HTML without running scripts or loading its resources.Text
  36. 36Initials MakerCreate uppercase initials from each name in a list.Text
  37. 37Invisible Character CleanerRemove common zero-width formatting characters and normalize nonbreaking spaces.Text
  38. 38Join Lines with DelimiterCombine nonblank lines using a custom separator.Text
  39. 39Line NumbererAdd sequential numbers to each line, starting where you choose.Text
  40. 40List DifferenceFind unique entries in the first list that are absent from the second.Text
  41. 41List FormatterTurn lines into bullets, numbered items or a comma-separated list.Text
  42. 42Markdown Checklist MakerTurn lines into unchecked Markdown tasks for notes or project documents.Text
  43. 43Number ExtractorExtract signed decimal numbers from ordinary pasted text.Text
  44. 44Phrase Acronym MakerBuild an acronym from a phrase, optionally omitting common English connector words.Text
  45. 45Plain Text Word WrapperWrap words to a chosen maximum line width without breaking long words.Text
  46. 46Reverse TextReverse text by characters, words or lines.Text
  47. 47Smart Quotes to Straight QuotesReplace curly quotation marks and apostrophes with plain keyboard equivalents.Text
  48. 48Sort Text LinesSort lines alphabetically or by numeric value.Text
  49. 49Text Chunk SplitterSplit text into fixed-size Unicode character chunks with visible separators.Text
  50. 50Trim Line EdgesRemove leading and trailing spaces from each line without changing internal spacing.Text
  51. 51Unicode Text NormalizerNormalize equivalent Unicode sequences using NFC or NFKC.Text
  52. 52Unwrap Paragraph LinesJoin wrapped lines within each paragraph while preserving blank-line paragraph breaks.Text
  53. 53URL ExtractorExtract unique HTTP and HTTPS links from text.Text
  54. 54Whitespace CleanerTrim line edges and collapse repeated horizontal whitespace.Text
  55. 55Word Frequency CounterCount words and rank repeated terms without sending your text anywhere.Text
  56. 56Color Contrast CheckerCalculate WCAG contrast for two solid sRGB colors.Developer
  57. 57Data Size ConverterConvert decimal KB/MB/GB and binary KiB/MiB/GiB using bytes.Developer
  58. 58File Download Time EstimateEstimate transfer time from decimal megabytes and connection megabits per second.Developer
  59. 59File SHA-256 ChecksumHash a file locally and optionally compare it with a trusted checksum.Developer
  60. 60HTML Entity DecoderDecode common named and numeric HTML entities as plain text.Developer
  61. 61HTML Entity EncoderEscape HTML-sensitive characters for literal display in markup.Developer
  62. 62JSON to CSVConvert an array of flat objects to a spreadsheet-safe CSV.Developer
  63. 63JSON to TypeScriptInfer a TypeScript type from a JSON sample, including nested arrays.Developer
  64. 64JWT Payload DecoderRead a JWT header and payload locally; does not verify its signature.Developer
  65. 65Number Base ConverterConvert integers between binary, octal, decimal and hexadecimal.Developer
  66. 66Screen Pixel DensityCalculate pixels per inch from screen resolution and diagonal inches.Developer
  67. 67URL ParserInspect a web address, its host, path, query parameters and fragment.Developer
  68. 68UTM Link BuilderBuild campaign links while preserving existing query parameters.Developer
  69. 69XML Formatter & ValidatorValidate well-formed XML and indent its elements without fetching resources.Developer
  70. 70Add / Subtract DaysMove a calendar date forward or backward by a number of days.Calculators
  71. 71Annual Salary to Hourly PayConvert an annual gross salary into an equivalent hourly pay rate.Calculators
  72. 72Aspect Ratio CalculatorSimplify an image ratio and calculate a matching height for a new width.Calculators
  73. 73Baker’s Percentage CalculatorExpress an ingredient weight relative to flour weight.Calculators
  74. 74Battery Runtime EstimatorEstimate runtime from battery capacity, voltage, load and usable efficiency.Calculators
  75. 75Break-Even CalculatorEstimate the units needed to cover fixed costs at a chosen price.Calculators
  76. 76Cashback CalculatorEstimate cashback and effective purchase cost using a rate and reward cap.Calculators
  77. 77Circle Area and CircumferenceCalculate a circle’s area, diameter and circumference from its radius.Calculators
  78. 78Coffee Brew RatioCalculate brewing water from coffee weight and a water-to-coffee ratio.Calculators
  79. 79Compound Savings CalculatorEstimate monthly compounded savings with end-of-month contributions.Calculators
  80. 80Concrete Volume CalculatorEstimate concrete volume for a rectangular slab with an allowance.Calculators
  81. 81Cooking Yield CalculatorCalculate cooked yield percentage and weight loss from raw and cooked weights.Calculators
  82. 82Cost Per Use CalculatorCompare a purchase price with its expected lifetime number of uses.Calculators
  83. 83Curtain Fabric WidthEstimate total fabric width from window width and fullness factor.Calculators
  84. 84Cycling Time EstimateEstimate cycling duration including planned stops.Calculators
  85. 85Cylinder Volume CalculatorCalculate a cylinder’s volume from radius and height.Calculators
  86. 86Debt to Income RatioCompare monthly debt payments with monthly gross income.Calculators
  87. 87Degrees and RadiansConvert angles between degrees and radians.Calculators
  88. 88Density CalculatorCalculate mass density from a mass and volume you measure.Calculators
  89. 89Distance Travel TimeEstimate travel duration from distance and constant average speed.Calculators
  90. 90Dough Hydration PlannerCalculate water required for a target flour-based hydration.Calculators
  91. 91Electric Vehicle Trip CostEstimate charging energy and cost including a charging-efficiency allowance.Calculators
  92. 92Electricity Meter UsageFind energy usage and charge from two cumulative meter readings.Calculators
  93. 93Emergency Fund PlannerEstimate a cash reserve from essential monthly expenses and months of cover.Calculators
  94. 94Energy Unit ConverterConvert joules, kilojoules, food kilocalories and kilowatt-hours.Calculators
  95. 95Equal Shelf SpacingFind equal clear gaps after accounting for shelf thickness.Calculators
  96. 96Estimated One Rep MaxEstimate a one-repetition maximum using the Epley formula for 1–10 repetitions.Calculators
  97. 97EV Charging Time EstimateEstimate charging duration from capacity, charge levels and average charging power.Calculators
  98. 98Event Budget AllocationAllocate an event budget across venue, food, other spending and contingency.Calculators
  99. 99Final Exam Grade NeededEstimate the final-exam score required for a chosen overall course grade.Calculators
  100. 100Fixed Payment Debt PayoffEstimate payoff time and interest with fixed monthly payments and no new charges.Calculators
  101. 101Flooring Pack CalculatorEstimate flooring packs and purchase cost including a waste allowance.Calculators
  102. 102Food Portion EnergyScale label calories from a stated serving weight to your portion weight.Calculators
  103. 103Fraction SimplifierReduce a whole-number numerator and denominator to their simplest fraction.Calculators
  104. 104Freelance Hourly Rate PlannerEstimate a billable hourly rate from desired earnings and annual business costs.Calculators
  105. 105Freezer Portion CalculatorDivide a prepared batch into equal-weight portions.Calculators
  106. 106Fuel Tank RangeEstimate driving range from available fuel and consumption.Calculators
  107. 107GCD and LCM CalculatorFind the greatest common divisor and least common multiple of two positive integers.Calculators
  108. 108Grid Plant SpacingEstimate plants on a rectangular grid using a fixed spacing.Calculators
  109. 109Home Down Payment PlannerCalculate a deposit target and the amount left to save.Calculators
  110. 110Hourly Pay to Annual SalaryEstimate gross weekly, monthly and annual pay from hourly wages.Calculators
  111. 111Inflation Cost EstimatorProject how a price changes under a constant annual inflation assumption.Calculators
  112. 112Installment Split CalculatorDivide a remaining purchase balance into equal interest-free installments.Calculators
  113. 113LED Replacement SavingsCompare electricity costs of old and new bulbs at your usage level.Calculators
  114. 114Luggage Volume CalculatorEstimate rectangular luggage volume from external centimeter dimensions.Calculators
  115. 115Macronutrient Calorie CalculatorCalculate food energy from grams of protein, carbohydrate and fat.Calculators
  116. 116Manual Exchange Rate CalculatorConvert an amount with an exchange rate you supply and a percentage fee.Calculators
  117. 117Markup Price CalculatorSet a selling price by applying a markup percentage to your cost.Calculators
  118. 118Meal Cost Per ServingCalculate total meal cost and per-serving cost from ingredient and energy spending.Calculators
  119. 119Mean, Median and RangeCalculate mean, median, sum and range from a numeric list.Calculators
  120. 120Measured Fuel EconomyCalculate fuel economy from distance driven and fuel consumed.Calculators
  121. 121Monthly Commute CostCombine distance-based driving costs, parking and tolls for workdays.Calculators
  122. 122Moving Box VolumeEstimate the total external volume of identical moving boxes.Calculators
  123. 123Mulch Quantity CalculatorCalculate mulch volume for a garden area and chosen layer depth.Calculators
  124. 124Multi-Buy SavingsCompare a multi-buy bundle with buying the same items individually.Calculators
  125. 125Overtime Pay CalculatorCalculate regular pay and overtime pay using your chosen overtime multiplier.Calculators
  126. 126Percentage Point DifferenceDistinguish a percentage-point change from a relative percentage change.Calculators
  127. 127Percentage to FractionConvert a percentage with up to four decimal places into a reduced fraction.Calculators
  128. 128Power Bank Charge EstimatorEstimate full phone charges using battery energy and transfer efficiency.Calculators
  129. 129Pressure ConverterConvert pressure among pascals, kilopascals, bar and psi.Calculators
  130. 130Price Increase DifferenceCompare old and new prices and estimate added annual cost from repeat purchases.Calculators
  131. 131Profit Margin CalculatorCalculate gross profit and margin from sales revenue and direct cost.Calculators
  132. 132Project Quote CalculatorBuild a project estimate from hours, hourly rate, direct costs and contingency.Calculators
  133. 133Proportional Rent SplitSplit rent between two people in proportion to their income or agreed weights.Calculators
  134. 134Purchasing Power EstimatorEstimate the future buying power of a fixed amount using an inflation assumption.Calculators
  135. 135Race Time Predictor at Fixed PaceEstimate finish time for a distance at your chosen constant pace.Calculators
  136. 136Rainwater Collection EstimateEstimate collected rainwater from roof area, rainfall and collection efficiency.Calculators
  137. 137Raised Bed Soil VolumeEstimate soil for a rectangular planter or raised garden bed.Calculators
  138. 138Ratio Share CalculatorSplit a total into two shares using an A:B ratio.Calculators
  139. 139Rent to Income RatioCalculate the share of monthly take-home income spent on rent.Calculators
  140. 140Right Triangle HypotenuseCalculate the hypotenuse of a right triangle from its two perpendicular sides.Calculators
  141. 141Road Trip Cost SplitSplit fuel, accommodation and shared trip costs equally among travelers.Calculators
  142. 142Room Area and PerimeterCalculate floor area and wall perimeter for a rectangular room.Calculators
  143. 143Room Volume CalculatorFind the volume of a rectangular room from its length, width and height.Calculators
  144. 144Round Cake Pan ScalingScale a recipe between two round pans using their surface areas.Calculators
  145. 145Running Pace CalculatorFind minutes per kilometer and average speed from distance and elapsed minutes.Calculators
  146. 146Sales Commission CalculatorEstimate base pay plus percentage commission on eligible sales.Calculators
  147. 147Savings Goal CalculatorFind the monthly saving needed to reach a target without interest.Calculators
  148. 148Simple Interest CalculatorEstimate interest where the starting principal does not compound.Calculators
  149. 149Speed to Running PaceConvert kilometers per hour into minutes per kilometer and per mile.Calculators
  150. 150Steps to DistanceEstimate walking distance using step count and your measured step length.Calculators
  151. 151Strength Workout VolumeCalculate weight moved from sets, repetitions and load per repetition.Calculators
  152. 152Subscription Cost CalculatorSee the annual cost of a monthly subscription and potential cancellation savings.Calculators
  153. 153Successive Discount CalculatorApply two consecutive discounts without adding their percentages incorrectly.Calculators
  154. 154Tax Inclusive / ExclusiveAdd tax or extract included tax using a rate you supply.Calculators
  155. 155Tea Batch QuantityScale tea and water for a chosen cup count and cup volume.Calculators
  156. 156Temperature ConverterConvert Celsius, Fahrenheit and kelvin with absolute-zero validation.Calculators
  157. 157Tile Count CalculatorEstimate rectangular tiles needed for an area and waste allowance.Calculators
  158. 158Time Duration CalculatorAdd or subtract two durations written as hours:minutes:seconds.Calculators
  159. 159Triangle Area CalculatorFind triangle area using a base and perpendicular height.Calculators
  160. 160Trip Budget PlannerEstimate accommodation, food, transport and activities for a trip.Calculators
  161. 161Upgrade Payback PeriodEstimate how long recurring savings take to recover an upfront upgrade cost.Calculators
  162. 162Walking Time EstimateEstimate walking duration from distance and your chosen average speed.Calculators
  163. 163Wall Paint QuantityEstimate liters of paint for wall area, openings, coats and coverage.Calculators
  164. 164Wallpaper Roll EstimateEstimate rolls by usable area with an explicit wastage allowance.Calculators
  165. 165Water Usage CostEstimate water volume and cost from flow rate and daily running time.Calculators
  166. 166Weekly Grocery QuantityPlan a food quantity from daily portions, household size and planning days.Calculators
  167. 167Weight Change TrackerCalculate numerical weight change between two measurements.Calculators
  168. 168Weighted Average CalculatorFind an average from matching lists of values and nonnegative weights.Calculators
  169. 169Add Calendar MonthsShift a date by whole months while clamping to the last valid day of the destination month.Productivity
  170. 170Add Minutes to a Clock TimeMove a 24-hour time forward or backward by a number of minutes.Productivity
  171. 171Add Working DaysMove a date forward by Monday–Friday working days, excluding holidays only if you account for them separately.Productivity
  172. 172Daily Task CapacityEstimate how many equal-duration tasks fit after breaks.Productivity
  173. 173Day of Week FinderFind the weekday for a specific calendar date.Productivity
  174. 174Day of Year CalculatorFind a date’s ordinal day number and remaining days in that year.Productivity
  175. 175Days in MonthFind the number of days in a selected calendar month and year.Productivity
  176. 176Decimal Hours to Hours and MinutesConvert decimal hours into rounded hours and minutes.Productivity
  177. 177Fixed UTC Offset ConverterConvert a clock time between two explicitly supplied UTC offsets.Productivity
  178. 178Habit Completion RateMeasure the percentage of planned habit sessions completed.Productivity
  179. 179Hours and Minutes to DecimalConvert duration hours and minutes into decimal hours.Productivity
  180. 180ISO Week NumberFind the ISO week number and week-year for a date.Productivity
  181. 181Leap Year CheckerCheck a Gregorian year and its number of calendar days.Productivity
  182. 182Meeting Availability OverlapFind the overlap between two same-day availability windows in one timezone.Productivity
  183. 183Midpoint Between DatesFind the calendar date halfway between two dates.Productivity
  184. 184Next Birthday DateFind the next occurrence of a birthday after a reference date.Productivity
  185. 185Random Choice PickerSelect an entry from a list with browser-generated secure randomness.Productivity
  186. 186Sleep Window PlannerCalculate a bedtime from a wake time and a sleep-duration assumption.Productivity
  187. 187Stopwatch with LapsTime an activity and record laps using a monotonic clock.Productivity
  188. 188Study Time AllocationDivide available study minutes across subjects in proportion to topic counts.Productivity
  189. 189Weekday CounterCount Monday–Friday dates after a start date through an end date.Productivity
  190. 190Work Shift HoursCalculate one shift’s elapsed time and paid hours after an unpaid break.Productivity