CalcSolver Codes: Every 4-Digit Code List (Updated Daily)

This page lists every CalcSolver code, updated daily. To use one, turn on Code Mode on the calculator, type the four digits, and the activity opens straight away. Type 0000 to open the full activity library. You can also tap Open next to any code below to go there directly.

How to Use a CalcSolver Code

It takes about five seconds.

1. Go to the CalcSolver calculator.
2. Tap the Code Mode switch at the top right. The screen shows four empty dots.
3. Type the 4-digit code with the keypad or your keyboard. Each digit fills one dot.
4. After the fourth digit, the activity opens. Press Esc (or the Calculator button on a phone) to go back to maths.

If the dots shake and clear, the code didn’t match. Check the number in the list below and try again.

All CalcSolver Codes

Search by name, category or number. The list is sorted by popularity, so the most played activities are at the top, and the newest codes are at the bottom.

The Codes Everyone Asks About

Code	What it does
0000	Opens the full activity library with categories, search and favorites
Any code in the list above	Opens that one activity directly
1111, 2222, 1234 and other repeating patterns	Not used for activities, so the dots shake and clear
Esc key	Closes the library and returns to the calculator

There are no hidden “cheat” codes beyond these. Every working code is in the list on this page.

How Codes Work on CalcSolver Online

Every activity gets its own 4-digit number the day it’s added. Codes start at 1001, and the activities that were most played when the library launched have the lowest numbers.

Codes are permanent. Once an activity has a code, it keeps it. A new activity always gets the next unused number, so it can never take over a code you already know. If an activity is ever removed, its code simply stops opening anything; it isn’t handed to something else.

The library refreshes every day. New activities appear in the Newest codes table at the bottom of the list, and this page updates on its own, so the date above the list always shows when it was last checked.

Code Not Working? Quick Fixes

Code Mode is off. With the switch off, digits go into the calculator as numbers. Turn it on and the screen should show four dots.

Only three digits went in. Every code has exactly four digits. If you typed 3 digits and waited, nothing happens; add the last one.

The dots shook and cleared. The code doesn’t match any activity. Search for the activity’s name in the list above to find its correct number.

The library is slow to open. The calculator works offline once the page has loaded, but the library needs an internet connection. Give it a moment on slow Wi-Fi.

An activity shows a black screen. Some activities take a few seconds to load. Wait, then tap the reload button above the activity. If it still won’t start, open a different one from Up next.

An activity won’t load at all on a school or work network. Some networks block certain activity sites. That’s set by the network, not by CalcSolver, so the calculator itself keeps working.

Finding Codes Inside the Library

You don’t need this page open to find a code. Inside the library:

• Every activity card shows its code in the corner.
• The Secret Codes section lists the most played codes.
• Typing a number into the search box shows every code that starts with it. Type 10 and you’ll see 1001, 1002, 1003 and so on.
• Tap the heart on any activity to save it to Favorites, so you don’t need to remember its code at all.

CalcSolver Codes FAQ