ToolnozaFree tool categories
Browse tools by task: files, calculations, engineering, data and generators.
Pet ToolsEstimate dog and cat resting energy needs, compare age estimates, plan pet food budgets and calculate aquarium volume.10 toolsAuto & EV ToolsEstimate fuel costs, EV charging costs and charging time, driving range and battery runtime.4 toolsEducation ToolsCalculate grades and attendance, weighted averages, final exam targets and credit-weighted GPA.13 toolsAI Writing ToolsPrepare prompts for stories and replies. Automatic AI generation is pending service activation; review outputs and protect personal information.2 toolsImage ToolsResize, compress and convert images in your browser. Review format, transparency and output dimensions before downloading.28 toolsPDF ToolsMerge, extract and reorganise PDF pages locally. Choose a task and check the page order in your downloaded document.33 toolsSocial Media ToolsSplit images for Instagram grids, carousels and puzzles, prepare TikTok image panels, create QR codes and build WhatsApp contact links.10 toolsText ToolsCount, compare, format and read text aloud. Find tools for editing drafts and checking text length.23 toolsMath & Date CalculatorsWork with percentages, scientific expressions, dates and proportions. Each calculator explains its inputs and assumptions.11 toolsFitness & TrainingEstimate activity calories and TDEE, plan barbell loading, calculate workout volume and run an interval timer. Find practical guides for each tool and check the calculation assumptions.13 toolsFinance & BusinessCalculate discounts, margins and tax amounts using rates you enter. Review assumptions before applying a result to a purchase or quotation.13 toolsUnit ConvertersConvert lengths, areas, temperatures, speeds and data sizes. Check the selected source and target units.16 toolsDeveloper ToolsFormat JSON, convert CSV, encode Base64, inspect URLs and generate hashes or UUIDs. Process data locally and validate output before using it.23 toolsEngineering ToolsExplore electrical, hydraulic, ventilation, civil construction and mining tools by specialty.103 toolsHealth & WellnessCalculate BMI, resting energy, body fat estimates, waist ratio, activity calories and menstrual dates. Compare assumptions and sources; estimates are not diagnoses.11 toolsSEO & MarketplacesBuild UTM campaign links, prepare page metadata and generate relevant keywords for Redbubble, TeePublic and Amazon Merch.12 toolsEveryday UtilitiesGenerate random numbers, passwords and other everyday outputs. Choose a tool for your task and review its limits.6 tools