Codeforces Lite: Your Ultimate Companion for Codeforces
Looking for a Dark Theme, a Code Runner, or a smoother Codeforces experience?
Codeforces Lite is here — a Chrome extension already trusted by 1700+ active users to level up your competitive programming journey.
Key Features
Built-in Code Editor with Code Running and Submissions
Write code directly in our editor to save time and avoid switching tabs. Run your code Free of Cost using integrated Judge0 support.
Prefer manual submissions? Just paste your code in the editor and submit FASTER THAN EVER BEFORE.Testcase Parsing
Testcases are auto-parsed into the editor and verdicts like AC, WA, TLE are displayed right where you run the code.CF Dark Theme & Enhanced UI
Enjoy a clean and intuitive layout with a dark theme designed specifically for Codeforces.Customizable Templates
Store your own templates and benefit from cursor-saving to maintain your position across sessions.
We built Codeforces Lite to boost your productivity and simplify contests. But now, we want to hear from YOU.
What features would you love to see next? More language support, UI tweaks, or a productivity boost you’ve always wanted?
We’re open to all ideas — if it’s possible, we’ll build it. Also, we’re looking for open source contributors to join us.
Get Codeforces Lite Here
Let’s make Codeforces Lite the best it can be — together.
maanassehgal o7
Thanks bhai! kesa lga apko extension
i dont think this extension was needed. Spend your time on some useful thing
Best extension I have ever came across
Thanks brother
nice extension)
Thanks! Any suggestions for new features or update in existing ones?
Your extension does not recognize questions in mashups , please fix that...
Hey, I haven't seen what mashups is, could you please share the url for where you are unable to access, I will add that and as soon as the update gets published, you will be able to access those problems. Thanks!
Consider this gym: https://codeforces.me/gym/105846
Thank you for highlighting this issue! We've addressed the problem with mashup questions, including the gym. The fix has been implemented and will be available in the upcoming update of CF Lite.
Cool
wow!great
Thanks
add an option to make the code editor full screen
Sure, will add it in the next update, I just checked and didn't see any submissions, have you tried submitting using Codeforces Lite?
not yet as I normally don't use chrome , can you make this extension work for safari?
We can but there are so many browsers, currently facing this issue on how to get it to support for everyone.
Great Extensioon for UI Changes and code running capabilities, extremely convinient
Thanks a lot brother, any changes you want?
Good job!
Thanks!
when firefox extensio
Very soon! We are getting high demand for getting to different browsers, I am planning to roll out an update with multiple browser support coming next update! Till the time, you can use it on chrome
can you make something which enables me to get list of problems according to the tags of any user , so that i can practice those quality problems and improve . I can collaborate but i really suck at dev so .
Thanks for the suggestion. Although it doesn't seem very practical. Generally when anyone has to practice quality problems from particular topics of particular ranges, they can refer to CP sheets, which is in most cases the best way to move forward.
There are some people who solve 1000s of all range problems, some focus on 400 problems for a particular range, while some just see solutions and learn from editorials. I don't see how the feature can help out anyone with this.
Thanks a lot btw! If you have any other suggestion, feel free to drop it, if it will help majority, I will get it done!
Wow, this looks incredibly useful! The built-in editor and dark theme are fantastic features. Great job!
Thanks a lot raya!
Good going.Please keep up the good work.
Thanks a lot, please let me know for any suggestions.
If you liked the extension, please give a 5 star rating at Chrome webstore, it would help me reach out to even more developers as the algorithm will push it even more.
Link: https://chromewebstore.google.com/detail/codeforces-lite-dark-mode/hgcgfmgjkfjmhoebifgmbfipinkkjgco
amazing, just a few things :
the dark mode is a bit laggy sometimes, when scrolling.
there might be some indentation glitches in the compiler, nothing too major though.
there should be an option for a preset snippet of our choice
Hey @rishabh_2005, Thanks a lot for your suggestions. I didn't face any lag issues on my laptop, checked it with my friend too. Could you please record a video and send it at [email protected]? I will have a look at it, and if I find something, I will get it fixed.
Also for the preset snippet, do you mean template? Check options, we already have a template option where you can load your template and it will be available on question load, and cursor saving as well.
Wow, it's very helpfull. Nice work!
Thanks! Can you pllease drop a 5 star review here, it would help me a lot https://chromewebstore.google.com/detail/codeforces-lite-dark-mode/hgcgfmgjkfjmhoebifgmbfipinkkjgco
how to use my own template? it would be really helpfull if you could explain what each button in your extension do?
Click on settings icon, there scroll down, you will see an option to set your template as well as save default cursor location.
Helpfull and amazing Extension.
Thanks!
anyone got any idea on how to make a sound play whenever i get a new ac submission ?
It works well in chrome, but doesnt work on Opera. Can it be fixed for Opera?
We are not planning to add any more browsers atm, we already added 2 — 3 but no one is really using them all are using on chrome, if in future multiple people want to get extension in opera, we will get it out
Is there a way that I can add my CF template to the editor that gets opened?
Checkout the settings given in extension with the settings icon, there you have option to add your template as well as set your default cursor there, also there are theme and editor settings where you can customize the extension as per your needs
Yeah I was able to add my own template thanks. One suggestion, could you display 'cerr'(or any error stream for that matter) messages? It would help in debugging. Currently they are not being displayed.
One more suggestion: Can you display autocomplete for packages and methods available in languages?
So for example if I am trying to write upper_bound in C++, it automatically gets recommended to me via autocomplete.
We can't add anymore autocomplete as that was all that is avaiable with monaco editor
Hi , extension is nice , but can i do somethink like run button to run code at my local computer? It will be nice if i can , or somethink similar to it.