The best productivity tools, apps, AI tools, courses and books, picked by a human.The best productivity
toolsappsAI toolscoursesbookstemplatestools
picked by a human.

Epoch timestamps to dates, and dates back to timestamps.

Convert Unix timestamps in seconds or milliseconds to readable UTC and local dates, or a date and time back to a timestamp, with the live current timestamp. Runs in your browser — nothing is saved or sent anywhere.

What a meeting costs per minute, per meeting and per year.

Add the people attending and their hourly pay, the length and how often it repeats to see the cost per minute, per meeting and per year, plus the person-hours used. Runs in your browser — nothing is saved or sent anywhere.

Remove extra spaces, tabs and line breaks.

Paste messy text to collapse repeated spaces, trim lines, turn tabs into spaces, tidy or remove blank lines, or join it all into one paragraph. Runs in your browser — nothing is saved or sent anywhere.

What all your subscriptions cost a month and a year.

List your subscriptions with their price and billing cycle, from weekly to yearly, to see the combined cost per day, month, year and five years and which ones cost most. Runs in your browser — nothing is saved or sent anywhere.

Roll any dice or flip a coin, fairly.

Roll one or many dice of any size, from d4 to d100, with every roll and the total shown, or flip coins for heads or tails using your browser's secure random generator. Runs in your browser — nothing is saved or sent anywhere.

What today's prices may cost in future.

Enter an amount, a yearly inflation rate and a number of years to see the future cost of the same things and how much buying power cash loses. Runs in your browser — nothing is saved or sent anywhere.

Pick a fair random winner or shuffle a list.

Paste names or options and pick one or more at random with no repeats, or shuffle the whole list, using your browser's secure random generator. Runs in your browser — nothing is saved or sent anywhere.

How much to save each month to hit a goal.

Enter a savings goal, what you have saved, how long you have and an expected interest rate to see the monthly and weekly saving you need and how much comes from interest. Runs in your browser — nothing is saved or sent anywhere.

A stopwatch with laps and a countdown with a chime.

Time anything with a stopwatch that records laps and marks the fastest and slowest, or set a countdown that chimes when time is up. Runs in your browser — nothing is saved or sent anywhere.

The hourly rate you need to charge.

Enter the income you want to keep, your business costs, an estimated tax rate and your billable hours to see the hourly rate to charge, plus weekly, monthly and yearly revenue. Runs in your browser — nothing is saved or sent anywhere.

Contrast ratio and WCAG AA / AAA results.

Pick a text and background colour to see their contrast ratio, a live preview and pass or fail for WCAG 2.2 AA and AAA text and UI contrast. Runs in your browser — nothing is saved or sent anywhere.

Hourly, daily, weekly, monthly and yearly pay.

Enter your pay for any period plus your hours, days and paid weeks to see it as hourly, daily, weekly, every two weeks, monthly and yearly pay, in any currency. Runs in your browser — nothing is saved or sent anywhere.

HEX, RGB, HSL and HSV in one place.

Type a colour as HEX, RGB or HSL, or use the colour picker, and copy it in HEX, RGB, HSL and HSV with a live preview. Runs in your browser — nothing is saved or sent anywhere.

Return on investment and yearly growth rate.

Enter the amount invested, the final value and the years held to see total gain, ROI, value multiple and compound annual growth rate (CAGR), in any currency. Runs in your browser — nothing is saved or sent anywhere.

Rank your tools from S to D and share the image.

Pick from 300 well-known productivity and AI tools, place them in S to D tiers by tapping or dragging, then download a share image or copy a link to your list. Runs in your browser — nothing is saved or sent anywhere.

Random v4 and time-ordered v7 UUIDs in bulk.

Generate up to 500 version 4 or version 7 UUIDs at once with uppercase, hyphen and brace options, and paste any UUID to check its version. Made with Web Crypto on your device — nothing is saved or sent anywhere.

Units and revenue you need to cover your costs.

Enter fixed costs, price and variable cost per unit to see break-even units, break-even revenue and contribution margin, with an optional target profit, in any currency. Runs in your browser — nothing is saved or sent anywhere.

Percent-encode and decode URLs, UTF-8 safe.

Percent-encode text for links and query strings or decode %XX URLs back to readable text, with UTF-8, whole-URL or single-value modes and form-style + spaces. Your text stays on your device — nothing is saved or sent anywhere.

Profit, margin and markup from cost and price.

Enter a cost and selling price to see the profit, gross margin and markup, or start from a target margin or markup to find the price to charge, in any currency. Runs in your browser — nothing is saved or sent anywhere.

Encode and decode Base64, UTF-8 and URL-safe.

Encode text to Base64 or decode Base64 back to readable text, with full UTF-8 support, the URL-safe variant and clear errors for broken input. Your text stays on your device — nothing is saved or sent anywhere.

Add tax to a price or take it back out.

Add GST, VAT or sales tax to a price, or remove it from a tax-inclusive total, at any rate you enter, with the tax amount and an even split shown. Runs in your browser — nothing is saved or sent anywhere.

Pretty-print, validate, minify and sort JSON.

Paste JSON to check it is valid, see errors with line and column numbers, and get it indented, minified or with keys sorted A to Z, ready to copy. Your data stays on your device — nothing is saved or sent anywhere.

Length, weight, temperature, volume, area and speed.

Convert between metric, US and UK units for length, weight, temperature, volume, area and speed, using the exact international definitions, with every unit shown at once. Runs in your browser — nothing is saved or sent anywhere.

Placeholder text by paragraph, sentence or word.

Generate lorem ipsum placeholder text by paragraphs, sentences or words, with or without the classic opener, and copy it in one click. Made on your device — nothing is saved or sent anywhere.

Days, weeks and workdays between two dates.

Count the days, weeks, months and Monday to Friday working days between two dates, or add and subtract days from any date. Runs in your browser — nothing is saved or sent anywhere.

Titles to clean URL slugs, many at once.

Paste titles, one per line, and get clean lowercase URL slugs with accents and punctuation removed, hyphens or underscores and an optional length limit. Your text stays on your device — nothing is saved or sent anywhere.

Exact age in years, months and days.

Enter a date of birth to see the exact age, total weeks and days, the weekday you were born and days to your next birthday. Runs in your browser — nothing is saved or sent anywhere.

Compare two texts and spot every change.

Paste two versions of a text to see added, removed and unchanged lines with line numbers, and ignore case or extra spaces if you like. Your text stays on your device — nothing is saved or sent anywhere.

Body mass index in metric or imperial units.

Enter your height and weight in kg and cm or lb, feet and inches to see your BMI, the WHO adult category and a healthy weight range for your height. Runs in your browser — nothing is saved or sent anywhere.

Dedupe, clean and sort any list.

Paste a list to remove repeated and blank lines, ignore case or extra spaces, and sort A to Z or by length. Your text stays on your device — nothing is saved or sent anywhere.

Monthly EMI, total interest and a full schedule.

Enter a loan amount, interest rate and term to see your monthly EMI, total interest, total cost and a yearly or monthly amortisation table. Runs in your browser — nothing is saved or sent anywhere.

Find your work style and 5 tools that fit.

Answer 9 quick questions to find your productivity type, get five matching tools from the directory and a card to share. Your answers stay in your browser and are never saved or sent.

25/5 focus sessions with long breaks.

A focus timer with 25-minute sessions, 5-minute breaks and a long break after four, custom lengths, a soft chime and a countdown in your tab. Runs in your browser; only your timer settings are remembered on your device.

Links and text to QR codes, PNG or SVG.

Turn any link or text into a static QR code, choose colours and error correction, and download it as PNG or SVG. Made on your device — nothing is saved or sent anywhere.

See savings grow with monthly deposits.

Enter a starting amount, rate, years and optional monthly deposit to see your final balance, interest earned and a year-by-year table. Runs in your browser — nothing is saved or sent anywhere.

Strong random passwords, made on your device.

Choose a length and character types and generate a strong random password with your browser's secure random generator. Your password never leaves your device — nothing is saved or sent anywhere.

Sale price, savings and stacked discounts.

Enter a price and a discount to see the sale price and what you save, stack a second offer or find the original price. Runs in your browser — nothing is saved or sent anywhere.

UPPER, lower, Title, Sentence, camelCase, snake_case and more.

Switch text between nine cases and copy the result in one click. Your text stays on your device — nothing is saved or sent anywhere.

Work out the tip and split the bill between friends.

Enter the bill, pick a tip and see the total and each person's share, with an option to round up. Runs in your browser — nothing is saved or sent anywhere.

Count words, characters and reading time.

Count words, characters, sentences and paragraphs, with reading and speaking time. Your text stays on your device and is never saved.

X% of Y, what percent, and percentage change.

Answer the three everyday percentage questions instantly as you type. Runs in your browser — nothing you enter is saved or sent anywhere.

A gamified idea generator for writers, creators and marketers.

Pick a topic, draw a random writing prompt, earn points, unlock levels and build a daily streak — all without signing in.

Put the pages of a PDF in the right order.

Drag pages or use the arrows to reorder them, then download the result right in your browser. Nothing is uploaded, stored or collected — your file never leaves your device.

Save just the pages you want as one new PDF.

Pick pages or type a range, then download them as a single new PDF right in your browser. Nothing is uploaded, stored or collected — your file never leaves your device.

Delete the pages you don't need from a PDF.

Pick pages to delete or type a range, then download the result right in your browser. Nothing is uploaded, stored or collected — your file never leaves your device.

Fix sideways or upside-down pages in a PDF.

Rotate one page or every page of a PDF right in your browser. Nothing is uploaded, stored or collected — your file never leaves your device.

Lock a PDF with a password using AES-256 encryption.

Add a password to a PDF right in your browser. Nothing is uploaded, stored or collected — your file and password never leave your device.

Combine multiple PDFs into a single file, quickly and easily.

Merge PDFs right in your browser and download the result instantly. Nothing is uploaded or stored — your files never leave your device.

Split a PDF into separate files by page or custom range.

Extract every page or pick page ranges and download new PDFs right in your browser. Nothing is uploaded or stored — your files never leave your device.

Design a clean digital ID card with your photo, links and bio.

Build a minimal personal card right in your browser and download it as a PNG. Nothing is uploaded or stored — your info never leaves your device.

Reduce the file size of a PDF, quickly and privately.

Compress a PDF right in your browser and download the smaller file instantly. Nothing is uploaded or stored — your files never leave your device.

Get concrete growth plays for your product and audience.

Describe what you're growing, pick your channels, and generate six specific growth marketing ideas with effort levels. Nothing is saved or sent anywhere.

Turn a PDF into PNG, JPG images or plain text.

Convert PDF pages to images or extract all the text, right in your browser. Nothing is uploaded or stored — your files never leave your device.

Explore things people built with Claude Opus 5.5.

A clean directory of public Claude Opus 5.5 builds shared on X, including games, films, websites, tools and experiments.

Turn images into a single PDF, privately in your browser.

Combine your images into one PDF right in your browser. Nothing is uploaded or stored — your files never leave your device.

Build a beautiful resume in your browser.

Design a thoughtful, professional resume right in your browser and export it as a PDF. No account, tracking, or resume storage — your details never leave your device.

Extract every image from a PDF, privately in your browser.

Pull every image out of a PDF and download them individually or as a ZIP, right in your browser. Nothing is uploaded or stored — your files never leave your device.