Every tool you need.
One click away.
Made for students and job seekers: merge assignment PDFs, calculate your GPA, make a passport-size photo, or shrink an image to the exact KB a job application demands. 60 professional tools — free, instant, and everything runs privately in your browser.
Browse by category
Eight categories covering the tools people use most, every single day.
PDF Tools
Merge, split, compress and convert PDFs — right in your browser.
10 tools →🖼️Image Tools
Compress, resize, crop and convert images of every format.
10 tools →✍️Text Tools
Count words, fix case, clean and transform any text instantly.
8 tools →🧮Calculators
Everyday calculators for money, health, dates and grades.
8 tools →🔄Converters
Convert currency, units, temperature and time zones live.
4 tools →⏰Timers & Daily Tools
Pomodoro, timers, clocks and a typing test — tools you open every day.
6 tools →🎲Generators
Generate QR codes, passwords, random numbers and more.
7 tools →💻Developer Tools
Format JSON, encode Base64, test regex and pick colors.
7 tools →Tools for students & job seekers
The two things our visitors do most: study smarter, and apply for jobs without fighting file-size and format rules.
Study, assignments & exams
Calculate your GPA, count words in an essay, merge assignment PDFs for submission, and focus with a study timer.
Job applications, done right
Online applications are strict — passport-size photo, image under a KB limit, documents as one PDF. Get them right the first time.
Most popular tools
The tools our visitors reach for again and again.
Daily tools — bookmark these
Timers, clocks and checkers designed for everyday routines.
Why people use KlikTools
Private by design
Every tool runs 100% in your browser using JavaScript. Your files are never uploaded to a server, so nothing can leak, be stored or be sold.
Instant results
Because processing happens on your own device, there is no upload queue and no download wait — most tools finish in under a second.
Completely free
All 60 tools are free with no sign-up, no watermarks and no daily limits. Open a tool and use it as many times as you like.
Works everywhere
KlikTools works on phones, tablets and computers — any device with a modern web browser, nothing to install.
Frequently asked questions
Is KlikTools really free?
Yes. Every tool on KlikTools is completely free to use, with no sign-up, no watermarks and no daily usage limits.
Are my files uploaded to a server?
No. All KlikTools tools run entirely in your web browser. Your files are processed on your own device and never leave it, which makes the tools both private and fast.
Do I need to install anything?
No installation is needed. KlikTools works in any modern browser on phones, tablets and computers.
Which tools are most popular?
The most used tools are Merge PDF, the Age Calculator, the Currency Converter, the QR Code Generator, the Image Compressor and the Pomodoro Timer.
From the blog
Guides that answer common questions with straight, practical steps.
How to Merge PDF Files for Free (No Upload, No Sign-Up)
Combine several PDFs into one document in under a minute — free, in your browser, without uploading your files anywhere.
🖼️How to Compress an Image Without Losing Quality
Shrink JPG, PNG and WebP photos by 50–90% while keeping them sharp — plus exact-KB compression for online forms.
🔐What Makes a Password Strong? (Length Beats Complexity)
A strong password is long, random and unique. Here is the math of password cracking — and how to create passwords that resist it.
🍅The Pomodoro Technique Explained: 25 Minutes to Better Focus
Work in 25-minute focused sprints with 5-minute breaks. Why the Pomodoro Technique works, and how to start today.