Browse practical calculators, image tools, writing generators, developer utilities, self-check tools, creative workflows, music tools, and reaction games from one growing directory of 88 listed websites.
Featured tools
Explore free browser calculators for BMI, body fat, calories, basal metabolic rate, exercise, nutrition, pregnancy, and other everyday health estimates.
Measure perceived sound delay, headphone and Bluetooth lag, microphone round-trip latency, and audio/video sync directly in a browser.
Check the current Japanese era year, convert Gregorian and Japanese calendar years, calculate age, and look up zodiac and sexagenary-cycle references.
Play a free browser-based Wavelength-style party game with a hidden target, spectrum clues, team scoring, multiplayer prompts, and no download.
Create passport, visa, driver-license, resume, student-ID, and green-card photos with background removal and document presets.
Translate text between standard Japanese and regional dialects such as Osaka, Kyoto, Hakata, Tosa, Hiroshima, Okinawa, and Tsugaru.
Calculate averages, variance, standard deviation, deviation scores, correlation, regression, statistical tests, confidence intervals, and process capability online.
Create and download Japanese yearly, monthly, weekly, holiday, lucky-day, medicine, and collection calendars in practical PDF or Excel formats.
Compare cloud GPU prices, memory, performance, availability, and provider options for models such as NVIDIA A100, H100, L4, L40S, and RTX 4090.
Convert missed questions or percent correct from NBME, UWSA, and Free 120 practice tests into practical Step 1 readiness and Step 2 CK score estimates.
Find Dave the Diver staff rankings, weapon priorities, early-game routes, restaurant management advice, completion times, and Jungle DLC guidance.
Understand Korean car warning lights, maintenance costs, tire care, engine oil, and insurance choices through practical driver-focused guides.
Compare registration, renewal, and transfer prices for popular domain extensions across multiple registrars.
Estimate a 400-1600 Digital SAT score from section scores or raw correct answers, then review percentiles and scoring guidance.
Calculate IPv4 and IPv6 networks, subnet masks, CIDR ranges, usable hosts, network addresses, and broadcast addresses in a Japanese browser toolkit.
Upload a clear portrait for an instant AI face rating based on visible symmetry, proportions, feature spacing, and overall facial harmony.
Take a 100-question Rice Purity Test, calculate a private 0-100 score, and read score ranges, averages, and question explanations.
Find the verified AA Browser APK, Android compatibility notes, checksums, and installation guidance for Android Auto head units.
Turn a public GitHub username into an interactive 3D contribution city, explore activity patterns, and troubleshoot missing or blank contribution data online.
Explore 007 First Light release details, cast, missions, walkthroughs, platforms, system requirements, trophies, and official sources in one multilingual guide hub.
Estimate German property tax and assessed value online with state-aware inputs, formulas, examples, and dedicated calculators.
Plan Factorio and Space Age production chains, machine counts, recipe ratios, belts, modules, power, and oil in one browser calculator.
Use free Japanese calculators for arithmetic, equations, differentiation, integration, matrices, complex numbers, logarithms, limits, and sigma notation.
Restore faded or damaged old photos online with AI tools for scratch repair, sharpening, colorization, and facial detail recovery.
Build and test Path of Exile 2 Atziri Temple layouts with room rules, upgrade paths, Generator coverage, rewards, and shareable plans.
Convert length, weight, temperature, area, volume, speed, pressure, energy, time, and data units with a free Japanese browser tool.
Prepare for the GED with free browser-based practice questions for math, science, social studies, and language arts.
Use free Japanese calculators and converters for daily life, health, sports, study, IT, text, units, and mathematics.
Calculate rent adjustments in Argentina with IPC, ICL, or RIPTE indices, contract dates, and current rent values, with dedicated tools and explanations for common lease scenarios.
Browse Traditional Chinese guides on parrots, aquarium fish, cats, dogs, insects, and other pets, with practical coverage of breeds, prices, feeding, housing, and everyday care.
Calculate creatinine clearance, eGFR, cystatin C estimates, UPCR, and UACR with Japanese clinical reference notes.
Test your reaction time with an F1-style five-light start sequence, instant timing, false-start detection, and repeatable browser practice.
Calculate solution concentration, dilution, molarity, w/v percentage, ppm, pH, normality, and related laboratory values in a Japanese browser tool.
Calculate an angel number from a birthday, name, or repeating number pattern, then explore a reflective meaning chart.
Play a free virtual harmonium with touch, QWERTY keys, or MIDI, plus transpose, octave, reed, and reverb controls.
Practice US learner-permit questions, road signs, Class C topics, and state-focused driving tests in a free browser quiz.
Calculate simple, weighted, school, baccalaureate, high-school, and university averages with coefficients in a focused French-language calculator.
Create AI-assisted book covers, turn images into cover layouts, and calculate Amazon KDP dimensions from one browser-based publishing toolkit.
Estimate Brazilian CLT severance, work time, salary balance, vacation pay, 13th salary, FGTS, and dismissal scenarios with focused calculators.
Calculate voltage, current, power, breaker capacity, wire size, voltage drop, and electricity cost with Japanese electrical-work calculators.
Take structured borderline personality disorder screening questionnaires, including quiet BPD and teen-focused self-check pages.
Calculate General Weighted Average for Philippine college and university grading systems, including school-specific workflows and grade guides.
Create chiptune-style songs in a browser with an UltraBox and BeepBox-inspired music sequencer, sample tools, mods, and offline guidance.
Calculate Japanese discount prices, percentage-off amounts, point rewards, and redemption rates with browser-based shopping calculators.
Use Arcane Tools as a browser reference for Arcane Odyssey treasure charts, map clues, chest locations, armor data, and player planning guides.
Estimate French baccalauréat averages and mentions for general, technological, BFI, and vocational Bac paths with a browser-based score simulator.
Estimate Japanese fixed-asset tax, route value, real-estate acquisition tax, registration license tax, and related property-tax scenarios with focused calculator pages.
Upload or compare a photo to identify possible places, landmarks, cities, houses, and visual location clues with a multilingual image-location finder.
Estimate gasoline costs, highway tolls, travel expenses, commute costs, and car-versus-train comparisons with a Japanese transportation calculator.
Convert Japanese full-width and half-width text, ASCII codes, alphanumeric characters, symbols, and katakana with a browser-based character utility hub.
Turn photos and illustrations into pixel art, create Minecraft-style dot art plans, and follow guides for Tomodachi Collection, retro, anime, and block-art workflows.
Calculate days between dates, days from today, business days, elapsed days, 100 days later, inclusive day counts, and paid-leave balances with a Japanese date-calculation hub.
Pick favorite Pokemon by generation and type, build a six-Pokemon team, toggle shiny forms, export a chart, and save or restore choices.
Create pie charts, bar charts, line charts, radar charts, and other browser-based visuals, then export the result as PNG or SVG.
Convert modern Japanese into classical-style text, explore kanbun-style conversion, and use supporting Japanese language tools in the browser.
Calculate Balatro hand scores, compare joker effects, and test scoring scenarios before committing to a run.
Read Japanese aquarium care guides for medaka, goldfish, small tanks, outdoor bowls, feeding, water quality, and beginner fishkeeping routines.
Play Antimatter Dimensions in the browser and follow focused guides for achievements, dimensional sacrifice, eternity challenges, and save-editor workflows.
Identify plants from photos online and compare multilingual plant ID guidance for gardeners, houseplant owners, and nature learners.
Generate Steam manifest and Lua file references in a browser workflow for users researching depot manifests, Lua helpers, and download setup notes.
Find Antigravity IDE download pages, version notes, and platform-specific guidance for Windows, macOS, Linux, and localized installer searches.
Use Japanese ADHD and ASD self-check flows, plus MBTI 64-type diagnosis pages, to explore attention, personality, and reflection-style questionnaires.
Calculate year-over-year, month-over-month, percentage change, growth rate, and ratio formulas with a Japanese-focused online calculator hub.
Edit Fallout Shelter save files online, review vault data, and follow platform-specific save editor guidance for PC, iOS, and Android workflows.
Calculate Romanian salaries, education salary grids, overtime, compensatory pay, and work-related earnings scenarios with focused calculator pages.
Convert color codes, explore pastel and rainbow palettes, and look up RGB, HEX, CMYK, and DIC-style color references in a browser.
Calculate Dutch school grades, required scores, averages, and formula-based grade outcomes with a simple online cijfercalculator.
Convert standard Japanese into regional dialects such as Kyoto-ben, Kansai-ben, Hakata-ben, Kumamoto-ben, and Okinawan-style expressions.
Create barcodes online for free, including JAN, Code128, Code39, ISBN, QR code, PNG, SVG, and PDF export.
Convert minutes, hours, seconds, elapsed time, work time, and timestamps with a free time calculator.
Plan Animal Crossing island layouts with paths, rivers, cliffs, bridges, inclines, and buildings.
Reverse audio files online for free, with support for common formats such as MP3, WAV, and M4A.
Check Flee the Facility trade values and compare win, fair, or lose results before trading.
Upload a clear photo to identify eye shape such as almond, hooded, round, monolid, or upturned.
Check facial symmetry from a front-facing photo and learn what affects symmetry scores.
Upload a face photo to check golden ratio, facial thirds, symmetry, and proportion notes.
Edit text in images online with AI, replace screenshot text, and repair backgrounds.
Upload a photo to see what animal you look like and compare animal face type percentages.
Generate stories, fanfiction, scenarios, and novel ideas with prompt, genre, and length controls.
Take a free online IQ-style test for logic, pattern recognition, and cognitive challenge practice.
Convert Japanese and English text into Mincho, Gothic, brush, handwritten, and decorative styles.
Upload a face photo for an AI ethnicity-style analysis and ancestry-inspired visual estimate.
Find fonts from screenshots, logos, posters, and images with an AI font matcher.
Preview age progression, make a photo look older, or explore how a face may change over time.
Upload a face photo and let AI estimate visible age for fun, comparison, and appearance analysis.
Interpret dreams online with AI support, dream symbols, and localized dream meaning pages across multiple languages.
Generate AI jokes, dad jokes, random jokes, and punchline ideas for social posts, speeches, and casual writing.
Estimate calories and nutrition from meal photos, then explore related calorie deficit, maintenance, protein, and goal-date calculators.
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