138 tools
All tools
Every tool on the site on one page, grouped by category, with a line on what each one does. Each opens straight into the tool: no account, nothing to install.
126 of 138 run entirely in your browser
- Add Page Numbers to PDFAdd a custom numbering sequence to all or selected PDF pages with precise formats, typography, positions, margins, previews, and verified output.
- Crop PDFCrop PDF margins or choose a precise visible area on one, selected, or all pages with real previews and verified structural output.
- JPG to PDF ConverterCombine one or many JPG images into a polished PDF with page-size, margin, orientation, fitting, and ordering controls.
- Merge PDFCombine multiple PDF files in your chosen order with page counts, drag-and-drop sorting, and private browser-only processing.
- Organize PDFVisually combine, select, reorder, rotate, duplicate, delete, and extract real PDF pages with undo, private previews, and quality-preserving export.
- PDF Metadata EditorView and edit a PDF's title, author, subject, keywords, creator, and dates, or strip them all, with private browser-only processing.
- PDF to JPG ConverterRender selected PDF pages as sharp JPG images with visual selection, 96–300 DPI output, quality control, and private ZIP downloads.
- Rotate PDFRotate selected pages in one or many PDFs with real previews, lossless structural changes, verified output, and private ZIP batching.
- Split PDFSeparate a PDF into custom page groups, individual pages, or equal chunks with private browser-only processing and ZIP download.
- Watermark PDFStamp custom text, a logo, PNG, or JPG over selected PDF pages with position, size, opacity, rotation, previews, and verified private output.
- Break-Even CalculatorFind the units and revenue where a business stops losing money, from fixed costs, price, and variable cost, with a chart and a target-profit solver.
- CV MakerBuild a polished CV with experience, education, skills, and links, saved privately in your browser.
- Invoice GeneratorCreate branded invoices with a logo, initials, or text-only header, live totals, and PDF-ready output.
- Kanban BoardPlan projects across private local boards with draggable detailed tasks, customizable workflows, CSV task transfer, and full workspace backups.
- Quotation & Estimate GeneratorCreate branded quotations and estimates with flexible headers, pricing, terms, approval, and PDF output.
- Receipt GeneratorCreate branded payment receipts with flexible header styles, customer details, live totals, and PDF-ready output.
- UTM Link BuilderBuild consistent campaign tracking URLs with presets, validation, custom parameters, local history, CSV export, and QR-code handoff.
- Character Counter for XCount standard posts with X’s weighted rules, preview the result, and split longer drafts into numbered threads.
- Essay Word CounterTrack an essay against common or custom word limits with live structure, timing, paragraph balance, and keyword insights.
- Invisible Character GeneratorCopy blank and invisible Unicode characters for empty names, messages, and posts, with each character's code point and where it tends to work.
- Keyword Density CheckerAnalyze one-, two-, and three-word phrase frequency, track exact terminology, filter results, and export a private CSV report.
- Meta Description CheckerCheck meta description length and editorial quality, preview desktop or mobile search snippets, and copy clean HTML.
- NATO Phonetic Alphabet ConverterSpell any name, reference, or password in the NATO phonetic alphabet, with capital marking, digits, punctuation, and the full ICAO pronunciation table.
- NotepadWrite and autosave plain-text notes in your browser across multiple named documents, with live counts, find and replace, and text or Markdown download.
- Palindrome & Anagram CheckerCheck whether a word or a whole sentence reads the same backwards, and whether two texts use exactly the same letters, with the counts that prove it.
- Reading Time CalculatorEstimate exact and rounded reading time at a custom words-per-minute pace, with finish time and speed comparisons.
- Remove Duplicate LinesDelete repeated lines from a pasted list, keep only the repeats, sort alphabetically or numerically, and see how many times each line appeared.
- Sentence & Paragraph CounterCount sentences and paragraphs, measure selected passages, and compare every paragraph’s length and structure.
- Speaking Time CalculatorTime speeches, presentations, scripts, and voiceovers with adjustable WPM, pause allowance, finish time, and pace comparisons.
- Syllable CounterCount syllables in any word, line, or poem, with a per-word breakdown and per-line totals for haiku, sonnets, and song lyrics.
- Text Diff CheckerCompare two versions of any text and see exactly what was added, removed, and changed: line by line or word by word, with whitespace and case controls.
- Typing Speed TestMeasure WPM, accuracy, rhythm, key response, difficult transitions, and punctuation timing in one deep typing lab.
- Uppercase & Lowercase ConverterConvert text to uppercase, lowercase, title, sentence, camel, Pascal, snake, kebab, alternating, or inverted case instantly.
- Word CounterCount words and characters, measure reading time, set a goal, and understand the keywords in any draft.
- YouTube Title Character CounterCheck a video title against YouTube’s 100-character maximum, catch invalid text, clean spacing, and preview the result.
- Favicon GeneratorTurn a logo or image into favicon.ico, browser PNGs, Apple and Android icons, a web manifest, and install-ready HTML.
- HEIC to JPG ConverterConvert iPhone HEIC and HEIF photos to compatible JPG images privately in your browser, with quality controls and batch ZIP download.
- Image Border & Frame AdderAdd a solid, inset, or photo-style border to any image in your browser, with exact pixel or percentage widths, rounded corners, and a live preview.
- Image CompressorCompress JPEG, PNG, WebP, and AVIF images with a professional Sharp and libvips pipeline, real savings, and visual comparison.
- Image ConverterConvert images between JPG, PNG, WebP, and AVIF with unchanged dimensions and lossless output where supported.
- Image CropperCrop a photo by dragging or by exact pixels, with aspect ratio presets, a circle crop for profile pictures, and PNG, JPEG, or WebP export.
- Image ResizerResize and crop images to exact dimensions or percentages with aspect-ratio locking, focal positioning, and practical presets.
- Image Rotator & FlipperRotate a photo by 90 degrees or any angle, flip it horizontally or vertically, straighten a crooked horizon, and export PNG, JPEG, or WebP.
- Image to Base64 ConverterEncode PNG, JPG, WebP, GIF, AVIF, or SVG files as a Base64 data URI with ready CSS and HTML snippets, a live preview, and the exact size premium measured.
- JPG to PNG ConverterConvert JPG and JPEG images to lossless PNG output without resizing or another lossy encoding step.
- PNG to JPG ConverterTurn PNG images into high-quality JPG files with preserved dimensions and transparency background controls.
- QR Code GeneratorCreate custom QR codes for links, Wi-Fi, contacts, email, calls, and messages, then export PNG or SVG.
- Social Media Image ResizerResize one image for Instagram, Facebook, YouTube, LinkedIn, X, TikTok, and Pinterest with editable presets, safe-area guides, crop controls, and batch ZIP export.
- SVG to Data URI ConverterTurn SVG markup into an optimized data URI for CSS or HTML, comparing URL-encoded and Base64 output with the exact byte difference.
- SVG to PNG ConverterSafely rasterize SVG artwork as transparent PNG files at selectable 1x through 4x resolution.
- WebP to JPG ConverterConvert WebP images to maximum-quality JPG files with a selectable background for transparency.
- WebP to PNG ConverterConvert static WebP images to lossless PNG files while preserving transparency and original dimensions.
- CAGR CalculatorFind the compound annual growth rate between a starting and ending value over any period, or solve for the end value or the years a target needs.
- Car Loan CalculatorEstimate a car payment, taxes, trade-in equity, total interest, payoff date, and the effect of extra monthly payments.
- Compound Interest CalculatorProject savings with recurring contributions, flexible compounding, rate scenarios, inflation, targets, charts, and yearly growth schedules.
- Discount CalculatorCalculate sale prices, stacked discounts, savings, tax, quantities, and reverse discount questions with a full price trail.
- Expense SplitterTrack group payments, choose who shared each cost, use equal or weighted shares, and calculate a clear who-pays-whom settlement plan.
- Fuel Cost CalculatorCalculate fuel and total trip cost with metric or imperial economy, return journeys, repeated trips, passenger splitting, and vehicle comparison.
- Loan CalculatorWork out the monthly payment, total interest, and full amortization schedule for any personal loan, with extra payments, fees, and an EMI view.
- Monthly Budget PlannerPlan monthly income and expenses, compare actual results, carry recurring entries forward, track a savings target, and export CSV.
- Mortgage CalculatorModel payments, tax, insurance, PMI, equity, interest, extra payments, and yearly amortization with a printable report.
- Profit Margin & Markup CalculatorCalculate profit, margin, markup, target selling prices, and maximum costs with customizable unit costs, overhead, and batch totals.
- Salary CalculatorConvert pay across six periods and estimate take-home income with custom schedules, overtime, allowances, and progressive tax brackets.
- Sales Tax CalculatorAdd sales tax, VAT, or GST to a price or take it back out of a total, with reverse calculation, several rates side by side, and line-item totals.
- Tip CalculatorCalculate a tip before or after tax, split the bill equally, round each share, and see a transparent per-person breakdown.
- Age CalculatorCalculate an exact age, lifetime totals, birth-date facts, and the countdown to the next birthday.
- Aspect Ratio CalculatorSolve any missing width or height at a locked aspect ratio, simplify pixel dimensions to their exact ratio, and check common video, photo, and screen presets.
- Average CalculatorCalculate arithmetic or weighted averages from pasted values with validation, summary statistics, precision controls, and a formula breakdown.
- BMI CalculatorCalculate adult BMI in metric or imperial units with clear screening categories and a height-specific healthy-weight range.
- Coin FlipFlip a fair animated coin for heads or tails with optional sound, call-the-toss mode, session history, streaks, and probability simulation.
- Conversion Rate CalculatorCalculate conversion rate, required conversions, required traffic, target gaps, and relative uplift for marketing, sales, or product funnels.
- Countdown TimerRun multiple named countdown timers with presets, accurate background timing, alerts, fullscreen display, and shareable end times.
- Daily PlannerPlan timed and flexible tasks, spot schedule conflicts, track progress, and carry unfinished work into a new day.
- Date & Time CalculatorCount days, hours, weeks, weekdays, weekends, and business days between dates, or add and subtract calendar time.
- Decimal to Fraction ConverterTurn any decimal, including repeating decimals, into an exact simplified fraction or mixed number, or the nearest fraction with a limit such as 1/64.
- Dice RollerRoll animated d4 through d20 dice or complete dice notation with secure randomness, modifiers, breakdowns, and history.
- Dog Age CalculatorConvert your dog's age into human years by size, with the DNA-based formula from 2020 research shown beside the traditional size chart.
- GPA CalculatorCalculate semester and cumulative GPA with credit-weighted courses, target planning, pass or withdrawal exclusions, and editable scales.
- Grade CalculatorCalculate weighted course grades, required final-exam scores, and points percentages with a customizable letter-grade scale.
- Median CalculatorFind the median of pasted numbers with visible sorting, highlighted middle values, quartiles, IQR, range, validation, and precision controls.
- Military Time ConverterConvert between 12-hour and 24-hour military time in either direction, with the spoken form, Zulu time, and a full printable conversion chart.
- Number Base ConverterConvert between binary, octal, decimal, hexadecimal, and any base from 2 to 36 at once, with fractions, byte grouping, and two's complement widths.
- Packing ListCreate categorized trip checklists from reusable templates with quantities, essentials, progress, multiple saved trips, printing, and text export.
- Percentage CalculatorSolve percent-of, percentage change, increase, decrease, and percentage-difference questions with formulas.
- Pomodoro TimerRun accurate focus and break cycles with custom durations, long-break rules, daily goals, notifications, and private history.
- Pregnancy Due Date CalculatorEstimate a pregnancy due date from the last period, conception date, IVF transfer, or an ultrasound, with weeks pregnant, trimester dates, and milestones.
- Random Number GeneratorGenerate secure random integers or decimals with custom ranges, exclusions, unique results, sorting, statistics, and downloads.
- Roman Numeral ConverterConvert numbers to Roman numerals and Roman numerals back to numbers, with strict validation, dates in numeral form, and the subtractive rules explained.
- Scientific CalculatorCalculate with advanced trig, logs, complex numbers, combinatorics, equations, numerical calculus, and vectors.
- Scientific Notation ConverterConvert between plain decimal, scientific notation, E-notation, and engineering notation with significant-figure control and SI prefixes.
- Sleep CalculatorFind the best times to go to bed or wake up from 90-minute sleep cycles and the time it takes you to fall asleep, with a cycle-by-cycle timeline.
- StopwatchTime laps and splits with timestamp-based precision, keyboard shortcuts, fullscreen mode, statistics, copy, and CSV export.
- TDEE & Calorie CalculatorEstimate basal metabolic rate and daily calorie burn from three published formulas, with activity levels, weight goals, and a macronutrient split.
- Time in XCheck the live local time, date, UTC offset, DST status, and difference from you in almost any city, region, or country.
- Unit ConverterConvert length, mass, temperature, area, volume, speed, pressure, energy, digital storage, and time with adjustable precision.
- Weather CheckerCheck current conditions, today by hour, and the previous seven days for cities and postal codes worldwide.
- Wheel of NamesSpin a fair animated wheel to pick a random name, team, prize, task, or decision, with saved lists, exclusions, and confetti.
- Barcode GeneratorGenerate validated Code 128, EAN, UPC, ITF-14, Code 39, and QR barcodes with SVG, PNG, and printable label-sheet output.
- Base64 Encoder & DecoderEncode Unicode text and files to Base64 or decode Base64 into text and downloadable files, with data URL and URL-safe support.
- Chmod CalculatorBuild a Unix file mode from checkboxes, read any octal or symbolic mode back, and copy the exact chmod command with setuid, setgid, and sticky bits explained.
- Color Picker & ConverterPick and convert HEX, RGB, HSL, and CMYK colors, generate harmonious palettes and shades, check WCAG contrast, and export CSS variables.
- CPS TestRun a click speed test from 1 to 60 seconds and get your clicks per second, click intervals, consistency, and fastest burst, with best scores kept on this device.
- Dead Pixel TestFill your screen with solid red, green, blue, white, and black to find dead, stuck, and hot pixels, with fullscreen cycling, keyboard controls, and a uniformity check.
- Hash GeneratorHash text or files with MD5, SHA-1, SHA-256, SHA-384, and SHA-512, sign messages with HMAC, and verify a published checksum locally.
- IPv4 Subnet CalculatorTurn any IPv4 address and CIDR prefix into its network, broadcast, usable host range, mask, wildcard, and a full list of equal-size subnets.
- JSON Formatter & ValidatorFormat, minify and validate JSON with precise diagnostics, recursive key sorting, tree search, and document statistics.
- JWT DecoderDecode a JSON Web Token into its header, payload, and signature, with readable claim dates, expiry status, and algorithm warnings, without sending it anywhere.
- Keyboard TesterPress every key and watch it light up on a full keyboard layout, with key codes, a list of keys not yet tested, chatter detection, and a rollover count.
- Lorem Ipsum GeneratorGenerate placeholder paragraphs, sentences, words, or list items, in plain text, HTML, or Markdown, and fill an exact word or character budget.
- Password GeneratorCreate cryptographically secure random passwords and memorable passphrases without saving or uploading them.
- PX to REM ConverterConvert pixels to rem and rem to pixels at any root font size, with a reference table, batch conversion of CSS values, and em for nested elements.
- Refresh Rate TestMeasure the refresh rate your browser actually delivers in hertz, with a frame-time graph, dropped frames, a smooth-motion check, and what can cap it.
- Regex Tester & DebuggerTest a regular expression against your own text with live match highlighting, capture groups, named groups, replacement preview, and a full token cheatsheet.
- Unix Timestamp ConverterConvert epoch seconds or milliseconds to ISO, UTC, local, relative, and time-zone dates, or convert dates and timestamp batches back.
- URL Encoder & DecoderPercent-encode or decode a URL, a query string, or a single parameter, and split any link into its scheme, host, path, query, and fragment.
- User Agent ParserBreak a user agent string into browser, engine, operating system, and device, read your own, and see which parts are real and which are legacy padding.
- UUID GeneratorGenerate UUID and GUID values in bulk (random v4, time-ordered v7, classic v1, reordered v6, or deterministic v5) and decode any existing UUID.
- Circle of FifthsClick any key for its signature, relative minor, diatonic chords, and common progressions, with every chord and scale playable in your browser.
- Delay & Reverb Time CalculatorTurn any tempo into delay, pre-delay, and reverb times in milliseconds for straight, dotted, and triplet note values, plus matching LFO rates in Hz.
- MetronomePractice with precise browser-timed clicks, tap tempo, custom meters, subdivisions, swing, beat accents, four voices, and a tempo trainer.
- Note, Frequency & MIDI ConverterConvert a note name, a frequency in hertz, and a MIDI number in any direction, with cents deviation, a movable A4, and an audible reference tone.
- Pitch Pipe & Reference TonePlay sustained chromatic reference tones for tuning by ear, with open-string presets for guitar, bass, ukulele, violin, and cello, plus octave, waveform, and A4 control.
- Tap Tempo & BPM CounterTap any key or click along with a track to read its tempo in BPM, with a rolling average, timing steadiness, and a handoff to the metronome.
- Transposer & Capo CalculatorMove a song or a chord chart into any other key, and find the capo fret that turns awkward barre shapes into open chords without changing the pitch.
- Mic TestCheck that your microphone works with a live level meter, a clipping warning, an input picker, and a short recording you can play back, all inside your browser.
- Speaker TestCheck your left and right speakers or headphones with channel tones, a polarity test, a bass-to-treble sweep, and pink noise, right in your browser.
- Spectrum AnalyzerSee the frequencies your microphone hears in real time, with a live spectrum, a scrolling spectrogram, the loudest peak and its musical note, and PNG or CSV export.
- Webcam RecorderRecord video from your webcam and microphone in the browser, with camera and mic pickers, resolution presets, a countdown, pause, and takes you can play back and download.
- Webcam TestCheck that your camera works with a live preview, the resolution and frame rate it actually delivers, a camera picker, and a snapshot you can save, all inside your browser.
- Crypto DCA CalculatorModel a recurring buy schedule or enter your real buys to find average cost basis, total invested, current value, and how dollar-cost averaging compares with one lump sum.
- Crypto Profit & Loss CalculatorCalculate net crypto profit, loss, ROI, break-even price, and exchange-fee drag for a sold or still-held position.
- Crypto Wallet Address ValidatorCheck a Bitcoin or Ethereum address before you send, with EIP-55 checksum, Base58Check, and bech32 verification running entirely in your browser.
- Gas Fee CalculatorWork out what an Ethereum transaction costs from the gas limit and the gwei price, split into the burned base fee and the validator tip.
- Impermanent Loss CalculatorWork out what a liquidity position loses against simply holding when the price ratio moves, and how much trading fee income it takes to break even.
- Liquidation & Position Size CalculatorFind the liquidation price of a leveraged position and the position size that keeps a losing trade inside the percentage of your account you were willing to risk.
- Satoshi, Gwei & Wei ConverterConvert BTC to satoshis, ETH to gwei and wei, and any token's own decimals with exact integer maths and no rounding drift.
- Staking & Yield CalculatorConvert APR to APY at any compounding frequency, project staking rewards over a lock period, and see what commission and reward timing really cost.