All tools
Every live tool, one row each, sortable by name or category. This table is the complete index — a new tool appears here the moment its registry entry goes live, with no other page to update.
| What it does | URL | ||
|---|---|---|---|
| Age Calculator | Calculators | Enter a date of birth and get an exact age in years, months and days, the total days and weeks lived, and how long there is until the next birthday. | /age-calculator |
| Amazon FBA Fee Calculator | Calculators | Work out Amazon US referral and FBA fulfillment fees from your price, box size and weight, then see the size tier, net proceeds and profit margin. | /amazon-fba-fee-calculator |
| Arabic Keyboard Tester | Testers | Test an Arabic keyboard in your browser. Check every switch, confirm the Arabic layout is live, and see whether letters join and run right to left. | /arabic-keyboard-tester |
| Bank Statement Converter (PDF to CSV) | Converters | Convert a text-based bank statement PDF to CSV in your browser. Scanned statements are refused, not guessed at; only your saved column layout is uploaded. | /bank-statement-converter |
| Barcode Generator | Generators | Generate Code 128, EAN-13, UPC-A and Code 39 barcodes in your browser. Check digits are worked out for you, and every barcode downloads as PNG or SVG. | /barcode-generator |
| Base64 Encoder / Decoder | Developer | Encode and decode Base64 text and files instantly, entirely client-side, with no upload and no size limit imposed by a server. | /base64-encoder |
| Case Converter | Text | Convert text to UPPERCASE, lowercase, Title Case or Sentence case, and to camelCase, snake_case or kebab-case for code — instantly, in your browser. | /case-converter |
| Chinese Keyboard Tester | Testers | Test every key on a Chinese keyboard and check your Pinyin or Zhuyin input method really produces characters. Covers Bopomofo caps and all five board sizes. | /chinese-keyboard-tester |
| Click Speed Test (CPS) | Testers | Measure your clicks per second in the browser. Pick a duration from one to a hundred seconds and see exactly how your click speed compares.Also at /1-second-cps-test, /5-second-cps-test, /10-second-cps-test, /60-second-cps-test, /100-second-cps-test | /cps-test |
| Color Picker | Developer | Pick a color from any image in your browser, or straight off the screen where your browser allows it — with the value in four formats and a palette you keep. | /color-picker |
| Countdown Timer | Timers | Set a custom countdown to any length with an alarm at zero — from a one-minute egg timer to an hour-long study block you can bookmark.Also at /1-minute-timer, /3-minute-timer, /5-minute-timer, /10-minute-timer, /15-minute-timer, /20-minute-timer, /30-minute-timer, /45-minute-timer, /60-minute-timer | /countdown-timer |
| Dead Pixel Test | Testers | Cycle full-screen colours to find dead or stuck pixels on any monitor, laptop screen or phone display, with no app install required. | /dead-pixel-test |
| eBay Fee Calculator | Calculators | Work out eBay's final value fee, per-order fee and your real profit on a US sale — including the fee eBay charges on the shipping you collected. | /ebay-fee-calculator |
| Epoch Converter (Unix Timestamp) | Developer | Convert Unix epoch timestamps to dates and back in seconds or milliseconds, with UTC and your local time side by side, and Discord markup as output. | /epoch-converter |
| Etsy Fee Calculator | Calculators | Work out what Etsy really takes from a sale: listing, transaction, payment processing and Offsite Ads fees, plus your payout, profit and margin. | /etsy-fee-calculator |
| Gamepad Tester | Testers | Test your PS5, Xbox or USB controller in the browser — check every button, both sticks for drift, the analog triggers and the d-pad before you blame a game.Also at /ps5-controller-test, /xbox-controller-test, /ps4-controller-test, /switch-pro-controller-test | /gamepad-tester |
| HEX to RGB Converter | Developer | Convert HEX, RGB, HSL and OKLCH in any direction as you type, with 8-digit alpha support and a live swatch — every conversion runs in your own browser. | /hex-to-rgb |
| Hindi Keyboard Tester | Testers | Test a Hindi keyboard in your browser. Check every switch, confirm an InScript layout is applied, and see whether Devanagari really reaches the box. | /hindi-keyboard-tester |
| Image Converter | Converters | Convert images between JPG, PNG and WebP entirely in your browser, with no upload — pick a quality, a background color, and download the result.Also at /jpg-to-png-converter, /png-to-jpg-converter, /webp-to-jpg-converter, /png-to-webp-converter, /jpg-to-webp-converter | /image-converter |
| JPG to PDF (and PNG) | Converters | Convert JPG to PDF in your browser — combine several images into one file at A4, Letter or a page sized to match each. The images are never uploaded. | /jpg-to-pdf |
| JSON Formatter | Developer | Format, validate and beautify JSON in the browser with inline error locations — what you paste is parsed on your own device rather than sent to a server. | /json-formatter |
| Keyboard Tester | Testers | Test every key on your keyboard in the browser. See which switches register, catch ghosting, check 100%, 80%, 75%, 65% and 60% boards in ANSI, ISO or AZERTY. | /keyboard-tester |
| Merge PDF (Combine PDF Files) | Converters | Combine PDF files into one document in your browser. Reorder the pages before you merge — nothing is uploaded and no sign-up is asked for. | /merge-pdf |
| Mic Test (Microphone Test) | Testers | Check your microphone with a live waveform before a call or a stream. The audio is read live in your browser and isn't recorded or uploaded. | /mic-test |
| Mouse Tester | Testers | Test mouse buttons, scroll wheel, double-click speed and polling rate in the browser before you blame a bad match on your hardware. | /mouse-tester |
| Online Notepad | Text | A plain text notepad in your browser tab that saves as you type and is still there after a reload, with word counts and a .txt download. | /online-notepad |
| Password Generator | Generators | Generate strong random passwords or memorable passphrases with adjustable length, character sets and an entropy estimate, computed only in your browser. | /password-generator |
| PayPal Fee Calculator | Calculators | Work out PayPal's US fee on any payment, then reverse it to find what to charge so the amount you need actually lands in your account. | /paypal-fee-calculator |
| PDF to JPG (and PNG) | Converters | Convert PDF to JPG or PNG in your browser, one image per page at screen, normal or print resolution. The PDF never leaves your device. | /pdf-to-jpg |
| Pomodoro Timer | Timers | A 25-minute Pomodoro focus timer with automatic breaks, an alarm, and a running tally of completed sessions, no account needed.Also at /25-minute-timer, /50-minute-timer | /pomodoro-timer |
| QR Code Generator | Generators | Turn text, links or Wi-Fi details into a downloadable QR code, generated in your browser with no sign-up and no watermark. | /qr-code-generator |
| Reaction Time Test | Testers | Measure your reaction time over five rounds and compare your average against typical human reaction speeds — no download, no account, just your browser. | /reaction-time-test |
| Russian Keyboard Tester | Testers | Test a Russian ЙЦУКЕН keyboard in your browser. Check every switch, confirm the Cyrillic layout is live, and find keys producing the wrong letter. | /russian-keyboard-tester |
| Signature Generator | Generators | Draw a signature with your mouse or finger, or type one in a handwriting font, then save it as a transparent PNG or SVG. Nothing is stored. | /signature-generator |
| Spacebar Counter | Testers | Count how many times you can hit the spacebar against the clock. The same clicks-per-second test, narrowed to a single key — no mouse, just the space bar.Also at /5-second-spacebar-counter, /10-second-spacebar-counter, /30-second-spacebar-counter, /60-second-spacebar-counter | /spacebar-counter |
| Split PDF (Extract Pages) | Converters | Split a PDF into separate files by page range, in your browser. Extract just the pages you need — nothing is uploaded and no sign-up is asked for. | /split-pdf |
| Stopwatch | Timers | Free online stopwatch with lap and split times, accurate to the hundredth of a second, that keeps counting correctly if you switch tabs or lock your screen. | /stopwatch |
| Text Compare | Text | Compare two blocks of text line by line and see exactly what was added, removed or changed — the comparison runs on your own device. | /text-compare |
| Text to Speech (Read Aloud) | Text | Paste text and hear it read aloud — no sign-up, no character limit. The voice picker marks which voices run on your device and which send text to a server. | /text-to-speech |
| UUID Generator | Developer | Generate random v4 UUIDs and GUIDs in bulk, copyable individually or as a list, computed locally in your browser with no server round-trip for a single one. | /uuid-generator |
| Webcam Test (Camera Test) | Testers | Test your webcam with a live preview in the browser, and see the resolution and frame rate your camera is really sending. Nothing is uploaded. | /webcam-test |
| Word Counter | Text | Count words, characters and reading time as you type, with limits for Twitter/X, Instagram bios and other platforms built in. | /word-counter |
| YAML to JSON Converter | Converters | Convert YAML to JSON in your browser — paste a config or drop a .yaml or .yml file, and the parsing happens on your device, not on a server.Also at /json-to-yaml-converter | /yaml-to-json-converter |
More tools are already drafted in the registry, each waiting on a widget and a guide before it routes. Each new tool is one component, one registry line, one guide — the index, sitemap, search and related-tool links all follow from it.