Free Online Tools That Work Right in Your Browser
Use fast, simple online tools for PDFs, images, text, calculations, developer tasks, media, device testing and everyday problems. Many Pexlii tools process your files directly on your device, so you don't have to upload them just to get a simple task done.
Built independently by a solo developer.
Everything you need, one click away
Explore fast utilities for PDFs, images, media, text, developers, calculations, and everyday tasks.
Popular Utilities
Frequently used tools ready to execute instantly.
Random Number Generator
Pick random numbers in a custom range, with optional repeats and sorting.
College GPA Calculator
Calculate semester and cumulative college GPA on a 4.0 scale with credit weights.
Mortgage Calculator with PMI & Taxes
Calculate monthly mortgage payments including taxes, insurance, PMI, and HOA fees.
Video Merger
Combine multiple video clips into one continuous video.
Full Screen Clock
Clean full-screen digital and analog clock for desk display.
Dice Roller
Roll standard D6 or RPG polyhedral dice (D20, D12, D8) with instant sum calculation.
Browse by Category
Comprehensive toolkits organized by task domain.
Why I Built Pexlii
“Useful online tools shouldn’t require you to give up your privacy.”
Hi, I’m the developer behind Pexlii.
I started building Pexlii after noticing something that bothered me about many online utility websites. Most of the time, you aren’t trying to do something complicated. You just need to compress a PDF, resize an image, generate a password, calculate something, convert a file or quickly solve a small problem.
But many websites ask you to upload your files to their servers before they’ll help you. And sometimes those files contain information you would never intentionally share with a stranger:
All for a task that might take less than thirty seconds.
That’s what made me start thinking differently.
Why Upload a File If Your Browser Can Do the Work?
Modern browsers are much more powerful than most people realize. They can manipulate images, process PDFs, generate secure values, transform text, perform calculations and handle many other tasks directly on the device you’re already using.
So I built Pexlii around a simple principle:
“Whenever your browser can do the work itself, your data shouldn’t need to leave your device.”
For tools marked In-Browser or Processed on your device, the processing happens locally on your phone or computer. Your file does not need to be sent to Pexlii just to complete the task.
YOUR DEVICE
Files remain in your local system memory on phone, tablet, or PC.
YOUR BROWSER
HTML5 Canvas, WebAssembly & Web Crypto engines handle execution.
PEXLII RUNS LOCALLY
Pure client-side processing without uploading your file to our servers.
YOUR RESULT
Instant download, copy, or preview generated right on your screen.
Transparent Network Disclosure: Some Pexlii tools require an internet connection or external data to function, such as IP lookup, internet speed testing or live data utilities. These tools are always clearly identified so you know exactly when a network request is needed.
Pexlii Isn’t Trying to Collect Your Files
Pexlii is currently an independent project built and maintained by a solo developer.
There isn’t a reason for me to know what’s inside your PDF just because you wanted to merge two pages. I don’t need your personal photos just because you wanted to resize an image. And you shouldn’t need to create another online account just to use a basic calculator or generator.
Build useful tools
Practical utilities focused on everyday tasks that should take under a minute.
Make them easy to use
Fast interfaces with no forced registrations, endless popups, or waiting queues.
Keep data collection out
No accounts, no email gates, no file-content analytics, and zero unnecessary uploads.
Be fully transparent
Clear labels for in-browser execution versus utilities requiring network access.
“I would rather build something people return to because it’s useful than because they’re trapped inside an account.”
Why Pexlii
Engineered for speed, privacy, and frictionless utility.
Native In-Browser Speed
Tools marked In-Browser process their inputs locally. Network-assisted tools clearly identify the connection they need.
Zero-Knowledge Privacy
Files and confidential data never leave your computer. There are no server logs, no stored files, and no telemetry cookies.
Free & Unrestricted
No subscription tiers, no usage caps, no artificial watermarks, and no mandatory account sign-ups. Open access tools forever.
Simple Rules Behind Every Tool
Guiding principles for how utilities are designed, built, and maintained across the entire platform.
Useful First
Every tool should solve a real problem. Pexlii isn’t about adding hundreds of pointless pages just to make the tool count bigger.
Privacy by Design
When the browser can safely perform the task locally, processing should stay on the user’s device.
No Unnecessary Accounts
You shouldn’t need to create a profile, verify an email or remember another password just to perform a simple task.
Clear About Processing
If a tool works locally, say so. If a tool needs an internet connection, say that too. Trust should come from transparency.
Fast and Simple
Open the tool. Complete the task. Get the result. Move on.
Keep Improving
Pexlii is still growing. Existing tools will improve and new useful utilities will continue to be added.
Pexlii Is Still Growing
What you see today is only the beginning.
I’m continuing to build Pexlii and add tools based on the everyday problems people actually need solved. The goal isn’t to reach some meaningless number of tools. The goal is for Pexlii to become one of those websites you remember.
A site you visit when you think:
Maybe today it’s a PDF utility. Tomorrow it might be a calculator. Next week it might be an image tool. Or a developer utility. Or something that doesn’t exist on Pexlii yet.
As long as it solves a real problem, it belongs in the toolbox.
Find the tool. Solve the problem. Continue with your day.
“Built independently with a simple idea: Make useful online tools without asking users to surrender more data than necessary.”
Frequently Asked Questions
Everything you need to know about how Pexlii works.