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Tools
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65 tools · 68 ways in
AI Tools
Games
- Falling blocksRotate and stack seven shapes, clear full rows. Scores stay on your device.Touch / keyboardInput processed on device
- Block puzzlePlace three shapes on an 8x8 board and clear full rows and columns. No timer.Touch / keyboardInput processed on device
- Merge the numbersSlide a 4x4 board and add equal numbers together. Reach 2048.Touch / keyboardInput processed on device
- MinesweeperUse the numbers to avoid the mines. The first click is always safe.Touch / keyboardInput processed on device
- SudokuFill a 9x9 grid with 1-9. Every puzzle has exactly one solution.Touch / keyboardInput processed on device
- Chain puzzleDrop pairs of coloured beads, link four of a colour, and watch the gaps fall into the next clear.Touch / keyboardInput processed on device
- Match threeSwap neighbours to line up three of a mark. Thirty moves, no clock.Touch / keyboardInput processed on device
- Tile matchClear 84 stacked tiles two at a time. Every deal is guaranteed solvable.Touch / keyboardInput processed on device
- Sliding puzzleSlide the tiles back into order. Every shuffle is solvable. 3x3 up to 5x5.Touch / keyboardInput processed on device
Network
- IP address checkSee how your connection looks from the internet.Current connectionUses network requests
- Subnet CalculatorTurn a CIDR block into its network address and usable host range.IP address / CIDRInput processed on device
- DNS lookupLook up DNS records and mail authentication (SPF, DKIM, DMARC).Domain nameUses network requests
- Speed testMeasure your connection’s download, upload and response time.Current connectionUses network requests
- Weather forecastJapan Meteorological Agency forecasts, today through the week.Region / public informationFetches public data
- Recent earthquakesJMA earthquake reports, updating automatically, with intensity by prefecture.Region / public informationFetches public data
- Device-to-device transferSend files straight to another device on your Wi-Fi. No upload, no expiry.FilesSends to the other device
- Cast screenShow this computer's screen on another device's browser. No app to install.PC screen (sharing permission required)Sends to the other device
Music & DTM
- Key & BPM analysisAnalyze a track’s key, BPM and quality.Audio filesInput processed on device
- Audio MasteringAdjust a mix to streaming loudness and export it.Audio filesInput processed on device
- Key & Tempo ChangerChange key and tempo independently.Audio filesInput processed on device
- Audio CutterCut the part you need out of an audio file, or join several into one.Audio filesInput processed on device
- Silence CutterFind the silent stretches in a recording and close them up.Audio filesInput processed on device
- BPM DetectorDetect a track's BPM by analyzing a file, or tap it out by hand.Audio filesInput processed on device
- Voice recorderRecord from your microphone, play it back, save as WAV or MP3.Microphone (permission required)Input processed on device
- Tuner & metronomeMeasure pitch from the microphone in cents, with a metronome on the same page.Microphone (permission required)Input processed on device
- Volume & level matchRaise or lower audio by dB, or match peak or loudness across several files.Audio filesInput processed on device
Compression
Work & Productivity
- File ConverterConvert images, audio and video to other formats.Audio / images / videoInput processed on device
- PDF MergeCombine PDFs into one, with reordering and per-file page ranges.PDFInput processed on device
- PDF SplitExtract pages from a PDF, split it page by page, or rotate it. No upload.PDFInput processed on device
- ZIP ExtractorCheck a ZIP listing, then extract only the files you choose.ZIPInput processed on device
- JSON FormatterPretty-print, minify, sort keys — and point at the exact line that broke.JSON / JSONLInput processed on device
- CSV ConverterCSV and JSON, both ways — quoted commas and line breaks included.CSV / TSV / JSONInput processed on device
- Text FormatterClean up letter case, extra whitespace, repeated blank lines, and line endings.TextInput processed on device
- QR code generatorBuild QR codes for links, Wi-Fi and contacts, then save PNG or SVG.TextInput processed on device
- Image metadata removerView and remove the capture date, camera and GPS data embedded in a photo.Image filesInput processed on device
- Background RemoverPick a color and export a transparent PNG with that background removed.Image filesInput processed on device
- Image ResizerResize images to an exact dimension, aspect ratio kept, in your browser.Image filesInput processed on device
- Password generatorStrong passwords and passphrases, made entirely in your browser.Generation optionsInput processed on device
- Hash & checksumCompute SHA-256, MD5 and more for text or files, and compare against a published value.Text / filesInput processed on device
- BenchKeep files on this device and reach them from any tool.FilesInput processed on device
- Date calculatorThe span between two dates, and the date N days before or after one.Dates / timesInput processed on device
- Sales tax & discount calculatorConvert between tax-inclusive and tax-exclusive prices, with discounts.Numbers / optionsInput processed on device
- Bill splitterSplit a total between people, with rounding and an organiser tilt.Numbers / optionsInput processed on device
- Percentage calculatorB% of A, A as a percent of B, percent change and percent off, each with the formula.Numbers / optionsInput processed on device
- Wage calculatorMonthly and yearly income from an hourly wage, salary to hourly, and overtime pay.Numbers / optionsInput processed on device
- Unit converterLength, mass, area, volume, temperature, speed and data, all units at once.Numbers / optionsInput processed on device
- Audio ConverterConvert audio between MP3, WAV, M4A and more.Audio filesInput processed on device
- Image ConverterConvert images between HEIC, PNG, JPG, WebP and more.Image filesInput processed on device
- Photo adjustAdjust a photo locally, irreversibly cover selected content, and save as PNG, JPEG, or WebP.Image filesInput processed on device
- Colour converter & contrastConvert between HEX, RGB and HSL, and check the contrast of two colours.Color valuesInput processed on device
- Word CounterCharacters, words, lines and reading time, counted as you type.TextInput processed on device
- Base64 encode & decodeText and files to Base64 and back, data URLs included.Text / filesInput processed on device
- Text diffCompare two texts and see which lines changed — and what changed inside them.TextInput processed on device
- Full-width / half-width converterConvert Japanese text between full-width and half-width, one character class at a time.TextInput processed on device
- Line toolsRemove duplicate and blank lines, sort, trim and number a list — in one pass.TextInput processed on device
- Unix time converterEpoch seconds and milliseconds to dates and back, local and UTC together.Dates / timesInput processed on device
- Regex testerTest a pattern against text: highlights, capture groups and a replace preview.TextInput processed on device
- UUID generatorGenerate UUID v4 (random) and v7 (time-ordered) in bulk.Generation optionsInput processed on device
- JWT decoderRead the contents of a JWT and check its expiry. Signature not verified.TextInput processed on device
- Japanese era converterConvert between Western years and Japanese eras (Meiji to Reiwa), with zodiac and age.Dates / timesInput processed on device
- Age calculatorExact age, days lived, traditional Japanese count and days to the next birthday.Dates / timesInput processed on device
- Weekday finderThe weekday of any date, days from today, day of year and ISO week number.Dates / timesInput processed on device
- URL encoder / decoderPercent-encode text for URLs and decode %XX back to readable characters.TextInput processed on device
- Vertical text (tategaki)Lay Japanese text out vertically: on screen, as pasteable text, or as a PNG.TextInput processed on device
- Mojibake decoderRecover the original Japanese from garbled text like 譁�蟄怜喧縺� or 日本語.TextInput processed on device