Every everyday file and number tool, free
Convert and compress images, turn PDFs into JPGs, pull MP3 from video, calculate your age, BMI, loan or GPA, count words, build QR codes and format JSON. All of it runs inside your browser — your files and figures never leave your device.
Most popular tools
Age Calculator
Free age calculator: enter your date of birth and get your exact age in years, months and days, plus total weeks, days, hours and your next birthday countdown.
PDF to JPG Converter
Convert PDF to JPG online free.
BMI Calculator
Free BMI calculator for adults.
Image to PDF Converter
Convert images to PDF online free.
QR Code Generator
Free QR code generator for URLs, Wi-Fi, phone, SMS, email and contact cards.
Word Counter
Free word counter: count words, characters, sentences, paragraphs and reading time as you type.
Calorie Calculator
Free calorie calculator: find your BMR and daily calorie needs (TDEE) from age, sex, height, weight and activity level, plus targets for losing or gaining weight.
Resize Image Online
Resize images online for free by pixel dimensions, percentage or social media preset (Instagram, YouTube, LinkedIn, passport).
Percentage Calculator
Free percentage calculator: work out X% of Y, what percent one number is of another, percentage increase or decrease, and add or subtract a percentage.
MP4 to MP3 Converter
Convert MP4 to MP3 online free.
Loan Calculator
Free loan calculator: enter amount, rate and term to see your monthly payment, total interest and a full year-by-year amortisation schedule.
HEIC to JPG Converter
Convert HEIC to JPG online for free.
Browse by category
Free Online Image Converter
Pick the conversion you need below.
Free Online Image Tools
Fix a photo in seconds without installing anything.
Free Online PDF & Image Tools
Two of the most-needed document tasks, done privately in your browser.
Free Online Video & Audio Tools
Real video processing without uploading a single byte.
Free Online Calculators
Fast, accurate calculators for the numbers that come up in everyday life – how old you are to the day, what a loan really costs, how many calories you need, what your GPA works out to.
Free Online Text Tools
Everyday text utilities for writers, students, editors and marketers.
Free Online Generators
Create what you need in one click: a QR code for your menu, poster or Wi-Fi network, a password strong enough to survive an offline attack, unique identifiers for your database, or random numbers for a draw.
Free Online Developer Tools
The small utilities you reach for a dozen times a day, without the ads, sign-ups and sketchy data handling.
Why Convert Now is different
Private by architecture
Most online tools upload your file to a server, process it there and keep a copy — sometimes for days. Convert Now does the work inside your browser using JavaScript and WebAssembly. Your photos, contracts, videos, salary figures and body measurements never leave your device, because there is no server to send them to.
Fast, because nothing uploads
No waiting for a 50 MB video to crawl up to a server and back. Conversion starts the instant you drop a file, images finish in milliseconds, and calculators update as you type.
Free with no catches
No account, no daily limit, no premium quality tier, no watermarks. Batch-convert 100 files at once and download a single ZIP.
Works everywhere
Any modern browser on Windows, Mac, Linux, ChromeOS, iPhone or Android. Nothing to install, and most tools keep working with the connection switched off.
One place for the things you look up every week
Convert Now began with a simple observation: the tasks people search for most — HEIC to JPG, compressing an image to 100 KB, PDF to JPG, MP4 to MP3 — should not require installing software, creating an account, or handing your files to a stranger's server. Modern browsers can decode images, render PDFs, run FFmpeg and compute cryptographic hashes on their own.
The same principle applies to numbers. Working out your exact age, what a loan really costs, your BMI or your GPA means typing personal information into a box. Ours never transmits it, and every calculator shows its working rather than just an answer.
Guides and how-tos
How to Calculate Percentage: Formulas, Examples, and Shortcuts
Learn how to calculate percentage step by step: percent of a number, percentage change, reverse percentag…
How to Convert PDF to JPG (Free, on Any Device)
Learn how to convert PDF to JPG free on any device. Step-by-step browser method plus Windows, Mac, iPhone…
How to Make a GIF from a Video (Free, No Watermark)
Learn how to make a GIF from a video in your browser, free and watermark-free. Control length, size, fps …
How to Make a QR Code (Free, No App Needed)
How to make a QR code in under a minute: what it encodes, static vs dynamic, error correction levels, and…
How to Reduce Image Size Without Losing Quality
Learn how to reduce image size for uploads, forms, and email using compression and resizing — plus target…
JPG vs PNG: Which Image Format Should You Use?
JPG vs PNG explained in plain English: compression, transparency, file size, and quality — with a compari…
How to Create a Strong Password (That You Can Remember)
How to create a strong password using length and entropy, not tricks: passphrases, password managers, 2FA…
What Is a Good BMI? Healthy Ranges and What the Number Actually Means
What is a good BMI? See the WHO chart, healthy ranges in kg and lb, why the formula has limits, and bette…
What Is HEIC? Apple's Photo Format Explained (and How to Convert It)
What is HEIC and why won't it open everywhere? Learn how HEIC works, HEIC vs JPG, and how to convert HEIC…
Frequently asked questions
Is Convert Now really free?
Yes. Every tool is free with no file limits, no account and no watermark. The site is supported by advertising.
Are my files or figures uploaded to a server?
No. All processing happens inside your browser using JavaScript and WebAssembly. Files, documents, videos and anything you type into a calculator never leave your device, which makes the site safe for personal documents, private photos and financial or health information.
What can I do on Convert Now?
Convert and compress images (HEIC, JPG, PNG, WebP, AVIF, SVG), turn PDFs into images and images into PDFs, extract audio and make GIFs from video, calculate age, BMI, percentages, loans, mortgages, calories and GPA, convert units, count words, compare texts, generate QR codes, passwords and UUIDs, and format JSON or Base64.
Does it work on mobile?
Yes. Every tool works in Safari on iPhone and iPad and in Chrome on Android — no app needed.
Can I use the tools offline?
Once a page has loaded, most tools keep working with no connection. The video tools need one initial download of their engine.
Do you keep any of my data?
We cannot — none of it is ever sent to us. When you close the tab, everything is gone.
Do I need to create an account?
No. There is no sign-up, no email required and no usage limit.