Get things done, one tool at a time
Calculators, timers, writing helpers, image and PDF tools — most run privately in your browser. A few ask you to sign in with Si-Des Auth.
Productivity 9
Focus Timer (Pomodoro)
Work in focused sessions with timed breaks, a session counter and a gentle chime.
Stopwatch & Countdown
A precise stopwatch with laps, and a countdown timer that rings when time is up.
Task List
A private checklist saved in your browser — add, tick off, filter and clear tasks.
Quick Notes
A distraction-free notepad that autosaves in your browser and exports to a file.
World Clock & Meeting Planner
See the time in many cities and find an hour that works for everyone.
Date Calculator
Days between two dates, add or subtract time, and count working days.
Event Countdown
A live countdown to a birthday, deadline, trip or any date.
Random Picker & Team Splitter
Pick a winner from a list, or shuffle people into fair teams.
Typing Speed Test
Measure your words per minute and accuracy on a short passage.
Money & Planning 5
Invoice Generator
Build a clean PDF invoice with line items and tax, saved only in your browser.
Discount & Sales Tax
Sale price after a discount, with tax or VAT added or removed.
Savings & Compound Interest
Grow a balance with regular deposits, and see how long a goal takes.
Salary & Hourly Converter
Convert pay between hourly, daily, weekly, monthly and yearly.
Trip & Fuel Cost
Fuel and total cost for a journey, split between passengers.
Text & Writing 7
Speed Reader
Read pasted text one word at a time at a pace you choose.
Case & Slug Converter
UPPER, lower, Title, camelCase, snake_case, kebab-case and URL slugs.
Lorem Ipsum Generator
Placeholder paragraphs, sentences or words for designs and drafts.
Line Sorter & Cleaner
Sort, deduplicate, trim, reverse and number lines of text.
Number to Words & Roman Numerals
Spell a number in words (for cheques and contracts) and convert to Roman numerals.
Morse Code Translator
Translate text to Morse and back, and play it as sound.
Read Aloud & Dictation
Have text read aloud in your language, or dictate text with your voice.
Images & Media 3
Image Compressor & Resizer
Shrink photos for email and the web — resize, choose quality and format.
Image ⇄ Base64
Turn an image into a Base64 data URL, or a Base64 string back into an image.
QR for Wi-Fi, Contacts & More
QR codes that join Wi-Fi, save a contact, send an email, SMS or open a map location.
Health & Wellbeing 1
Everyday Utilities 25
QR Code Generator
Turn any text or URL into a downloadable QR code.
Barcode Generator
Generate a scannable Code128 barcode from text.
Password Generator
Cryptographically random passwords and passphrases.
Text Utilities
Base64/URL encode-decode, JSON formatter, hash calculator.
Network Speed Test
Measure your download and upload throughput.
Calculator
Standard and scientific calculator — sin/cos/tan, log, square roots, and more.
Percentage Calculator
"X% of Y", "X is what % of Y", and percentage increase/decrease.
BMI Calculator
Body Mass Index from height and weight, metric or imperial.
Age Calculator
Exact age in years, months, and days from a birth date.
Unit Converter
Length, weight, and temperature conversions.
Tip Calculator
Bill total, tip percentage, and splitting across a group.
Loan / EMI Calculator
Monthly payment and total interest for a fixed-rate loan.
Number Base Converter
Convert live between binary, octal, decimal, and hexadecimal.
Word Counter
Words, characters, sentences, paragraphs, and estimated reading time.
Color Picker & Palette Generator
Pick a color, generate tints/shades/complements, and check WCAG contrast.
Timestamp & Timezone Converter
Unix timestamp to date, and a date/time across every timezone.
JSON Formatter & Validator
Validate, pretty-print, minify and sort JSON, with the error position pinpointed.
Regex Tester
Live match and capture-group highlighting against sample text.
CSV ⇄ JSON Converter
Convert between CSV and JSON, with proper quoted-field handling.
UUID / Random Generator
UUIDv4, random hex strings, dice rolls, and coin flips.
Text Diff Checker
Line-level diff between two blocks of text.
Markdown Live Previewer
Side-by-side Markdown editor and live preview.
JWT Decoder
Decode a JWT’s header and payload, and optionally verify an HMAC signature.
GPA & Grade Calculator
Grade point average from your courses, and the score you need on a final exam.
URL Shortener
Stateless, database-free short links — the destination is encoded directly into the link.
Privacy & Security 7
Password Strength Checker
How long a password would take to crack, checked privately in your browser.
My Internet Profile
See what a website can see about your connection and browser, plus common privacy leaks.
URL Safety Inspector
Check a link for common phishing red flags before you click it.
Photo Metadata Remover
Strip hidden location, camera and time details from a photo before you share it.
Steganography
Hide (and reveal) a secret message inside a PNG image.
Steganalysis Lab
Chi-Square LSB detection and an EOF/metadata inspector for a suspect image.
Local Share
Send files and messages directly between two devices, peer-to-peer — no server in the middle.
PDF Toolkit 14
Document Converter
Convert images between formats, or turn text/Markdown, Word, or Excel files into a PDF.
Organize PDF
Merge, split, extract, remove, rotate, reorder, or crop pages.
Compress PDF
Shrink a scanned or image-heavy PDF by re-rendering it at a lower quality.
Images to PDF
Combine JPG/PNG images into one multi-page PDF.
PDF to Images
Render every page of a PDF as a downloadable PNG or JPEG.
PDF to Text
Extract the plain text content of a PDF.
PDF to Markdown
Best-effort Markdown conversion, with headings guessed from font size.
Extract Text from Scanned PDF
Real OCR (Tesseract) for scanned or image-only PDFs.
Add Page Numbers
Stamp sequential page numbers onto every page.
Add Watermark
Overlay diagonal watermark text across every page.
Fill & Flatten PDF Form
Fill a fillable PDF form and bake the values in permanently.
Sign PDF
Draw a visual signature onto a page (not a cryptographic signature).
Redact PDF
Permanently black out sensitive regions — the text underneath is genuinely destroyed.
Compare PDF
Line-level text diff between two PDFs.