CP TOOLKIT V2 NEW UPDATE!!!
This new update comes PACKED with a ton of new features, which I'll list below.
Newly Added Core Features
Graph Editor An intuitive editor where nodes move smoothly. Build and edit graphs with drag-and-drop interaction.

Graph Generator Generate Trees, Cactus Graphs, Complete Graphs, Connected Graphs, Planar Graphs, Forests, and more. Perfect for creating custom test cases.

Big Integer Calculator Handles large integer operations with full precision. Great for number theory problems.

Array Visualizer Cleanly displays 1D and 2D arrays. Automatically adjusts font size and cell spacing for large arrays.

NTT-Friendly Prime Generator Select primes of specific length and base. Browse from a list of 320,000 preprocessed primes.
Primitive Root / Discrete Log / Discrete Root Calculators No need to implement these manually anymore. Let the site compute them for you instantly.
Original post starts here...
Hello everyone! I just released an AWESOME new tool and I'm here to spread the word.
Introducing...
PS/CP Toolkit --> biximo.net <--
So, what is this thing?
If you’ve ever done competitive programming (CP) or problem solving (PS), you probably know how annoying it can be to do certain things manually. And while you'd think there’d be a convenient website with all the tools in one place... turns out, nope. No one made one.
So I did.
PS Toolkit V1 is packed with useful number theory tools — and more features are on the way! Please check it out and share if you find it helpful!
Features
PrimeBrowser
Explore all prime numbers up to $$$2^{63} - 1$$$ 
GetKthPrime
Quickly find the $$$k$$$-th prime number (up to $$$2^{31} - 1$$$) 
CountPrimes
Count how many primes are less than or equal to a given number 
PrimeFactorize
Perform prime factorization on integers up to $$$2^{63} - 1$$$ 
countCoprime (Euler's phi function)
Compute Euler's totient function $$$\varphi(n)$$$ efficiently (up to $$$2^{63} - 1$$$) 
CountDivisors
Count the exact number of divisors of a number 
GetHighlyCompositeNumber
Get the $$$n$$$-th highly composite number 
GetPrimeGap
Find the largest gap between consecutive primes 
IsPrime
Fast and accurate primality testing (up to $$$2^{63} - 1$$$) 



