All tools
Every tool on Worker's Studio, listed in full by category.
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📄PDF tools
🧩Merge PDFCombine multiple PDFs into one file, in the order you choose✂️Split PDFSplit by page ranges, or break every page into its own file🔄Rotate pagesRotate selected pages by 90° / 180° / 270°🗑️Delete pagesRemove the pages you don't need📑Extract pagesKeep only the pages you choose, as a new file💧Add watermarkStamp a text watermark on every page🔢Add page numbersCustom position, starting number and format📦Shrink file sizeRe-pack the PDF's internal structure to reduce size🖼️Images to PDFTurn JPG/PNG photos into a single PDF file✍️Fill PDF formType into a flat PDF's blanks, tick boxes, and download the filled copy🖨️PDF to imagesRender every page of a PDF as a PNG image📄PDF to textExtract all text content from a PDF as .txt📝PDF to WordExtract a PDF's text into an editable .docx document📃Word to PDFConvert a .docx file to a PDF that looks like the document📊PDF to PowerPointTurn each PDF page into a slide in a .pptx file📏Split PDF by file sizeSplit a PDF into files that stay under a target size🔀Reorder PDF pagesRearrange a PDF's pages into a new order👁️Online PDF viewerOpen and page through a PDF right in your browser🏷️PDF metadata editorView, edit, or wipe a PDF's title, author, and other document info📐Crop / resize PDF pagesTrim page margins, or rescale pages to fit A4/Letter🖼️PDF image watermarkStamp a logo or image watermark onto every page🔤PDF to Base64Get a base64 data URL string for embedding a PDF in code🧹Remove blank pagesDetect and remove visually blank pages from a PDF🔊Read PDF aloudHave your browser read a PDF's text out loud🔍Compare PDFsSee the text differences between two PDFs, page by page📰Add header & footerStamp custom header/footer text, with odd/even page variants🔎PDF OCR (scanned text)Recognize text from a scanned PDF, in English or Chinese↩️Reverse page orderFlip every page in a PDF into reverse order➕Insert blank pageAdd a blank page at any position in a PDF📌Flatten PDF formTurn fillable form fields into static, uneditable content🧽Remove annotationsStrip comments, highlights, and markup from a PDF🛡️Sanitize PDFStrip embedded auto-actions and JavaScript that could run on open🔗Alternate mergeInterleave the pages of two PDFs, one from each in turn🔲Multiple pages per sheet (N-up)Combine 2/4/6/9 pages onto each printed sheet📖PDF bookletImpose pages for double-sided printing and center-fold booklets🖋️Sign PDFPlace a signature image anywhere on a PDF and download it📸Rasterize / grayscale PDFFlatten pages to images, optionally in grayscale
🖼️Images & files
🗜️Compress imageReduce JPG/PNG/WebP file size📐Resize imageScale an image to the dimensions you need✂️Crop imageCut out just the area you want🔃Rotate & flip imageRotate 90°/180°/270°, or flip horizontally/vertically🔁PNG to JPGConvert PNG images to JPG🔁JPG to PNGConvert JPG images to PNG🔁JPG to WebPConvert JPG images to WebP🔁WebP to JPGConvert WebP images to JPG🔁PNG to WebPConvert PNG images to WebP🔁WebP to PNGConvert WebP images to PNG🔁HEIC to JPGConvert iPhone HEIC/HEIF photos to JPG or PNG🔤Image to Base64Get a data URL string you can paste straight into code🏷️Barcode generatorTurn a value into a scannable barcode🔳QR code generatorTurn a link or text into a QR code📷EXIF viewer & removerView a photo's metadata, and strip it before sharing💧Image watermarkOverlay a text watermark onto an image🖼️Image collage makerArrange multiple images into a grid collage🎨Color picker from imageClick a point on an image to read its color🎞️GIF makerCombine several images into an animated GIF▦Image grid splitterSplit an image into a grid, like an Instagram 9-grid🕶️Sensitive info mosaicDraw boxes to pixelate sensitive parts of an image🪪ID photo generatorLay out copies of a photo on a printable ID-photo sheet🧵Long image stitcherStack several screenshots into one long image⭕Circle cropCrop an image into a circle with a transparent background
📝Text & writing
📝Word counterCharacters, words, lines, paragraphs, reading time🔤Character counterCharacter/byte count and common platform length limits🔠Case converterUPPERCASE, lowercase, Title Case, camelCase and more🧹Remove empty linesStrip blank lines from a block of text🗑️Remove duplicate linesKeep only the first occurrence of each line↕️Sort linesSort lines alphabetically, ascending or descending🧩JSON formatterPretty-print or minify JSON, with error checking🔐Base64 encode/decodeEncode or decode text as base64🔗URL encode/decodePercent-encode or decode a URL/string📊CSV to JSONConvert CSV data into a JSON array📈JSON to CSVConvert a JSON array into CSV data📄Markdown previewerLive side-by-side Markdown editor and preview🔍Text diff checkerCompare two blocks of text line by line🧪Regex testerTest a regular expression and see every match📃Lorem ipsum generatorGenerate placeholder filler text for mockups🔗Slug generatorTurn text into a URL-friendly slug🀄Chinese Traditional/Simplified converterConvert text between Traditional and Simplified Chinese🔐Hash generatorMD5, SHA-1, SHA-256, SHA-384, or SHA-512 hash of any text⏱️Cron expression generatorBuild a 5-field cron schedule with a plain-English description🔧Linux chmod calculatorConvert between numeric and symbolic file permissions😀Emoji searchSearch for an emoji by keyword and copy it🔊Text to speechHave your browser read text aloud, with adjustable voice, rate, and pitch
🎲Random tools
🔢Random number generatorPick random numbers in a range, with or without duplicates🎟️Random name pickerDraw one or more names from a list, fairly👥Random group generatorSplit a list into balanced random groups🎲Dice rollerRoll any number of dice with any number of sides🎡Spin wheelSpin a wheel of custom entries to pick a winner🔑Password generatorGenerate a strong random password🎨Random color generatorHEX/RGB/HSL values plus a matching palette🍜What to eatLet randomness decide your next meal🤔This or thatRandomly pick between two options🙋Random student pickerCold-call students one at a time, classroom-friendly🪙Coin flipFlip one or more coins, with a running tally✊Rock paper scissorsPlay a round against the computer, with a running score🔮Daily fortune drawDraw a lighthearted fortune slip, just for fun🎱Lottery number pickerDraw a random set of lottery numbers, plus a bonus number
⏰Work & time
🍅Pomodoro timerFocus and break cycles, with automatic long breaks⏳Countdown timerCount down from a set time, with an alert at zero⏱️StopwatchStart, pause, and record lap times📅Date differenceYears, months and days between two dates🎂Age calculatorExact age and days until your next birthday💼Business days calculatorCount weekdays between two dates, excluding holidays🔔Break reminderA focus/rest interval timer that gently reminds you to step away🕒Timestamp converterConvert between Unix timestamps and readable dates🌐Time zone converterSee what time it is across common time zones✅Todo listA simple checklist that stays in your browser⏲️Interval timerA work/rest interval timer for workouts⚖️BMI calculatorCalculate body mass index from weight and height📐Unit converterConvert length, weight, and area between common units♈Zodiac & nominal age calculatorWestern sign, Chinese zodiac animal, and East Asian nominal age🖥️Screen dead pixel testFill the screen with solid colors to spot dead pixels⌨️Keyboard testerTest that every key registers correctly🖱️Mouse testerTest left, right, middle click, and scroll💡LED marqueeTurn your screen into a scrolling LED-style sign👟Shoe size converterConvert a shoe size between US, UK, EU, and cm📍My locationShow your current GPS coordinates💸Meeting cost calculatorWatch a meeting's cost tick up in real time⌨️Typing speed testMeasure your typing speed (WPM) and accuracy
💰Salary & money
💰Net salary calculatorEstimate take-home pay after common deductions🕐Overtime pay calculatorEstimate overtime pay by hourly rate, hours and multiplier🏠Mortgage payment calculatorEstimate the monthly payment on a home loan📈Compound interest calculatorProject growth with compounding and regular contributions🎯Savings goal calculatorHow long to reach a goal, or how much to save monthly💸Inflation calculatorSee how inflation erodes purchasing power over time🧾Tip calculatorWork out the tip, total, and per-person amount🧮Bill splitterSplit a shared bill by each person's own subtotal📉Stock return calculatorEstimate profit/loss and return on a buy-then-sell trade🈷️Number to Chinese uppercaseFinancial uppercase numerals for checks and invoices📊Stock average cost calculatorWeighted-average cost basis across multiple buy lots📃Invoice generatorFill a form and download a clean PDF invoice or receipt
📈Drawing tools
📐2D CAD boardDraw lines, rectangles and circles on a snapping grid🖌️SketchpadFreehand drawing with brush color, size and eraser🖋️Signature makerDraw or type your signature, download as a transparent PNG🔀Flowchart makerProcess boxes, decision diamonds and connecting arrows📊Bar chart makerTurn label/value rows into a bar chart, live🥧Pie chart makerTurn label/value rows into a pie chart with percentages📈Line chart makerTurn label/value rows into a live line chart🎨Color palette generatorGenerate a coordinated palette from a base color🔲Grid paper generatorGenerate printable grid or graph paper🎨Color code converterConvert a color between HEX, RGB, and HSL
🎓Students & teachers
🪑Seating chart generatorFill a row x column seat grid from a name list👨🏫Classroom group generatorSplit a class into groups by count or by fixed size📝Grade average calculatorSimple and weighted averages across scores🎓GPA calculatorCredit-weighted GPA on a 4.3 or 4.0 scale🗓️Timetable generatorFill in a weekly class or work schedule grid📚Study plannerTurn topics and hours into a daily study allocation
📊Education & statistics
📏T-score calculatorConvert a raw score to a T-score (mean 50, SD 10)🔢Z-score calculatorConvert a raw score to a standard (Z) score📊PR percentile rank calculatorPercentile rank from below-count and tied-count⚖️Weighted average calculatorValue/weight rows to a weighted average🏅Class rank percentile calculatorPercentile from a class rank and total count🔄Normalized score converterLinearly rescale a raw score to a target mean/SD📉Standard deviation calculatorSample and population standard deviation💯Percentage calculatorX% of Y, what percent, and percent change🧪Cronbach's Alpha calculatorScale reliability from a respondents x items matrix🔍SPSS result interpreterStructured fields for t-test/ANOVA output, plain-language readout🆔UUID generatorGenerate one or more random v4 UUIDs📈Correlation calculatorPearson correlation coefficient between two paired data sets🔲Chi-square test calculatorChi-square test of independence for a contingency table📐Confidence interval calculatorConfidence interval for a sample mean🎯Sample size calculatorRequired sample size to estimate a proportion